PATENT ABSTRACT
An objective optical system for an optical information recording/reproducing apparatus, at least one surface of the objective optical system being configured to be a phase shift surface having a phase shift structure, wherein: the phase shift surface has a first area contributing to converging first, second and third light beams onto recording surfaces of first, second and third optical discs, respectively; in the first area, the phase shift surface has at least two types of phase shift structures including a first phase shift structure having first steps and a second phase shift structure having second steps; the phase shift surface has a plurality of combinations of annular zones which satisfy a condition:
 
0.95&lt; P 1/ P 2&lt;1.05  (1), and
 
the phase shift surface satisfies a following condition:
 
−3.00&lt;Δφ1/Δφ2&lt;−0.10  (2).

PATENT DESCRIPTION
BACKGROUND OF THE INVENTION 
     The present invention relates to an objective optical system for an optical information recording/reproducing apparatus configured to record information to and/or reproduce information from a plurality of types of optical discs based on different standards, and to an optical information recording/reproducing apparatus on which such an objective optical system is mounted. 
     There exist various standards of optical discs, such as DVD (Digital Versatile Disc) and BD (Blu-ray Disc), differing in recording density, protective layer thickness, etc. Therefore, an objective optical system mounted on the optical information recording/reproducing apparatus is required to have a compatibility with a plurality of types of optical discs. In this case, the term “compatibility” means to guarantee realizing information recording and information reproducing without the need for replacement of components even when the optical disc being used is changed. 
     In order to have the compatibility with the plurality of types of optical discs based on the different standards, it is necessary to correct the relative spherical aberration which is caused depending on the difference in protective layer thickness between the optical discs and to form a suitable beam spot in accordance with the difference in recording density between the optical discs by changing the numerical aperture NA of the objective optical system. The optical information recording/reproducing apparatus is configured to use a plurality of types of laser beams having different wavelengths respectively for the plurality of recording densities of the optical discs. The optical information recording/reproducing apparatus uses, for example, light having the wavelength of approximately 790 nm (i.e., so-called near infrared laser light) for information recording or information reproducing for CD, light having the wavelength of approximately 660 nm (i.e., so-called red laser light) for information recording or information reproducing for DVD and light having the wavelength of approximately 405 nm (i.e., so-called blue laser light) for information recording or information reproducing for BD. Japanese Patent Provisional Publication No. 2009-199707A (hereafter, referred to as patent document #1) discloses a configuration of an optical information recording/reproducing apparatus having the compatibility with the three types of optical discs. 
     SUMMARY OF THE INVENTION 
     An objective lens disclosed in patent document #1 is provided with two types of steps respectively giving different additional optical path lengths to an incident light beam. One of the two types of steps (a first step) is configured such that the diffraction orders at which the diffraction efficiencies take the maximum values for the laser beams for BD/DVD/CD are 1 st /0 th /0 th  orders, and the other of the two types of steps (a second step) is configured such that the diffraction orders at which the diffraction efficiencies take the maximum values for the laser beams for BD/DVD/CD are 2 nd /1 st /1 st  orders. If the steps are designed such that an adequate spot light amount is secured for all the three types of light beams having the wavelengths for BD/DVD/CD, regarding the latter step the diffraction efficiency is high because in this case the phase shift is small for each of the laser beams having the wavelengths, while, regarding the former step, the diffraction efficiency is low because in this case the phase shift is large for each of the laser beams having the wavelengths. Therefore, the objective lens has a drawback that the overall light use efficiency is low. 
     The present invention is advantageous in that it provides an objective optical system and an optical information recording/reproducing apparatus which have the compatibility with a plurality of types of optical discs and are configured to suppress decrease of the light use efficiency. 
     According to an aspect of the invention, there is provided an objective optical system for an optical information recording/reproducing apparatus configured to record information to and/or reproduce information from three types of optical discs including first, second and third optical discs differing in recording density, by selectively using light beams having first, second and third wavelengths emitted from light sources. The objective optical system comprises at least an objective lens. When λ 1  (unit: nm) represents the first wavelength, λ 2  (unit: nm) represents the second wavelength and λ 3  (unit: nm) represents the third wavelength, λ 1 , λ 2  and λ 3  are defined as: Δ 1 ≈405, λ 2 ≈660, and λ 3 ≈790. When NA 1  represents a numerical aperture required for the information recording or information reproducing for the first optical disc, NA 2  represents a numerical aperture required for the information recording or information reproducing for the second optical disc, and NA 3  represents a numerical aperture required for the information recording or information reproducing for the third optical disc, NA 1 , NA 2  and NA 3  satisfy a following relationship: NA 1 &gt;NA 2 &gt;NA 3 . 
     At least one surface of the objective optical system being configured to be a phase shift surface having a phase shift structure including a plurality of refractive surface zones concentrically divided so as to have steps giving different phase differences to an incident light beam at a boundary between adjacent ones of the plurality of refractive surface zones. The phase shift surface has a first area contributing to converging the first, second and third light beams onto recording surfaces of the first, second and third optical discs, respectively. The first area has an effective diameter larger than NA 0.3 at the first wavelength. In the first area, the phase shift surface has at least two types of phase shift structures including a first phase shift structure having first steps and a second phase shift structure having second steps. 
     When P 1  (unit: mm) represents an arrangement interval defined in a direction perpendicular to an optical axis direction between two first steps which adjoin with respect to each other while sandwiching at least one second step, and P 2  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two second steps which adjoin with respect to each other while sandwiching at least one first step and one of which is sandwiched between the two first steps, the phase shift surface is configured such that, in an area whose effective diameter is larger than NA 0.3 at the first wavelength in the first area, the phase shift surface has a plurality of combinations of annular zones which satisfy a condition (1):
 
0.95&lt; P 1/ P 2&lt;1.05  (1)
 
     where, 
     one of the two first steps arranged closer to the optical axis is defines as a first start step, and the other of the two first steps farther from the optical axis is defined as a first end step, when the first steps are continuously arranged in a direction perpendicular to the optical axis not to have the second steps therebetween, the arrangement interval P 1  is determined by defining one of the continuously arranged first steps closest to the optical axis as the first start step and by defining the other of the continuously arranged first steps farthest from the optical axis as the first end step, 
     one of the two second steps arranged closer to the optical axis is defines as a second start step, and the other of the two second steps farther from the optical axis is defined as a second end step, and 
     when the second steps are continuously arranged in a direction perpendicular to the optical axis not to have the first steps therebetween, the arrangement interval P 2  is determined by defining one of the continuously arranged second steps closest to the optical axis as the second start step and by defining the other of the continuously arranged second steps farthest from the optical axis as the second end step. 
     When Δφ 1  (unit: radian) represents a difference between 2π and an absolute value of a phase change caused by the first steps with respect to the light beam having the first wavelength in a case where the first steps give an additional optical path length to the light beam having the first wavelength in a direction proceeding along the optical axis from each light source to an optical disc being used, and Δφ 2  (unit: radian) represents a difference between 2π and an absolute value of a phase change caused by the second steps with respect to the light beam having the first wavelength in a case where the second steps give an additional optical path length to the light beam having the first wavelength in a direction opposite to the direction proceeding along the optical axis from the light source to the optical disc being used, in an area having an effective diameter larger than NA 0.3 at the first wavelength in the first area, the phase shift surface satisfies a following condition:
 
−3.00&lt;Δφ1/Δφ2&lt;−0.10  (2).
 
     The objective optical system secures the compatibility with the first to third optical discs by giving the multiple optical effects by the plurality of types of phase shift structures formed in the first area, gives phase changes, which have approximately the same period and are in opposite directions, to the light beam having the first wavelength passed through the first step and the light beam having the first wavelength passed through the second step by satisfying both of the conditions (1) and (2), and thereby aligns the wavefront by cancelling the phase changes with respect to each other. 
     In at least one aspect, the phase shift surface may satisfy a following condition:
 
−1.30&lt;Δφ1/Δφ2&lt;−0.35  (3).
 
     In at least one aspect, when φ 1  (unit: πradian) represents an absolute value of a phase difference given to the light beam having the first wavelength by each first step and φ 2  (unit: πradian) represents an absolute value of a phase difference given to the light beam having the first wavelength by each second step, the phase shift surface may satisfy following conditions:
 
2.2&lt;φ1&lt;2.8  (4), and
 
1.0&lt;φ2&lt;1.70  (5).
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
2.3&lt;φ1&lt;2.6  (6), and
 
1.1&lt;φ2&lt;1.5  (7).
 
     In at least one aspect, when ΔOPD 1  (unit: μm) represents an absolute value of an optical path length difference given to the light beam having the first wavelength by each first step, and ΔOPD 2  (unit: μm) represents an absolute value of an optical path length difference given to the light beam having the first wavelength by each second step, the phase shift surface may satisfy following conditions:
 
1.1&lt;Δ OPD 1/λ1&lt;1.4  (8), and
 
0.50&lt;Δ OPD 2/λ1&lt;0.85  (9)
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
1.15&lt;Δ OPD 1/λ1&lt;1.30  (10), and
 
0.55&lt;Δ OPD 2/λ1&lt;0.75  (11).
 
     In at least one aspect, when D 1  (unit: μm) represents an absolute value of a height of the paraxially arranged first step in the optical axis direction, and D 2  (unit: μm) represents an absolute value of the height of the paraxially arranged second step in the optical axis direction, the phase shift surface may satisfy following conditions:
 
0.70&lt; D 1&lt;1.10  (12), and
 
0.30&lt; D 2&lt;0.70  (13).
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
0.80&lt; D 1&lt;0.95  (14), and
 
0.40&lt; D 2&lt;0.55  (15).
 
     In at least one aspect, when the at least two types of phase shift structures formed in the first area are expressed by diffraction structures defined by expanding an optical path difference function in a form of a following equation:
 
φ ik ( h )=( P   ik2   ×h   2   +P   ik4   ×h   4   +P   ik6   ×h   6   +P   ik8   ×h   8   +P   ik10   ×h   10   +P   ik12   ×h   12 ) m   ik λ
 
     where P ik2 , P ik4 , P ik6  . . . represent coefficients of the 2 nd  order, 4 th  order, 6 th  order, h represents a height from the optical axis, m ik , represents a diffraction order at which the diffraction efficiency of an incident light beam is maximized for the i-th optical path difference function in the k-th area, and λ represents a design wavelength of the light beam being used (incident thereon), the first phase shift structure is a diffraction structure defined by a first optical path difference function in which diffraction orders at which diffraction efficiencies for the light beams having the first, second and third wavelengths are maximized are all 1 st  orders; and the second phase shift structure is a diffraction structure defined by a second optical path difference function in which diffraction orders at which diffraction efficiencies for the light beams having the first, second and third wavelengths are maximized are 1 st  order, 0-th order and 0-th order, respectively. 
     In at least one aspect, the phase shift surface may include a second area which is located outside the first area and which contributes to converging the light beams having the first and second wavelengths onto recording surfaces of the first and second optical discs, respectively and does not contribute to converging the light beam having the third wavelength. In the second area, the phase shift surface has at least two types of phase shift structures including a third phase shift structure having third steps and a fourth phase shift structure having fourth steps. 
     When P 3  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two third steps which adjoin with respect to each other while sandwiching at least one fourth step, and P 4  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two fourth steps which adjoin with respect to each other while sandwiching at least one third step and one of which is sandwiched between the two third steps, the phase shift surface may satisfy a following condition:
 
0.95&lt; P 3/ P 4&lt;1.05  (16);
 
     where, 
     one of the two third steps arranged closer to the optical axis is defines as a third start step, and the other of the two third steps farther from the optical axis is defined as a third end step, 
     when the third steps are continuously arranged in a direction perpendicular to the optical axis not to have the fourth steps therebetween, the arrangement interval P 3  is determined by defining one of the continuously arranged third steps closest to the optical axis as the third start step and by defining the other of the continuously arranged third steps farthest from the optical axis as the third end step, 
     one of the two fourth steps arranged closer to the optical axis is defines as a fourth start step, and the other of the two fourth steps farther from the optical axis is defined as a fourth end step, and 
     when the fourth steps are continuously arranged in a direction perpendicular to the optical axis not to have the third steps therebetween, the arrangement interval P 4  is determined by defining one of the continuously arranged fourth steps closest to the optical axis as the fourth start step and by defining the other of the continuously arranged fourth steps farthest from the optical axis as the fourth end step. 
     When Δφ 3  (unit: radian) represents a difference between 2π and an absolute value of a phase change caused by the third steps with respect to the light beam having the first wavelength in a case where the third steps give an additional optical path length to the light beam having the first wavelength in a direction proceeding along the optical axis from each light source to an optical disc being used, and Δφ 4  (unit: radian) represents a difference between 2π and an absolute value of a phase change caused by the fourth steps with respect to the light beam having the first wavelength in a case where the fourth steps give an additional optical path length to the light beam having the first wavelength in a direction opposite to the direction proceeding along the optical axis from the light source to the optical disc being used, the phase shift surface may satisfy a following condition:
 
−2.70&lt;Δφ3/Δφ4&lt;−0.05  (17).
 
     In at least one aspect, the phase shift surface may satisfy a condition:
 
−1.05&lt;Δφ3/Δφ4&lt;−0.20  (18).
 
     When φ 3  (unit: πradian) represents an absolute value of a phase difference given to the light beam having the first wavelength by each third step and φ 4  (unit: πradian) represents an absolute value of a phase difference given to the light beam having the first wavelength by each fourth step, the phase shift surface may satisfy following conditions:
 
2.1&lt;φ3&lt;2.8  (19), and
 
1.0&lt;φ4&lt;1.70  (20).
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
2.2&lt;φ3&lt;2.6  (21), and
 
1.1&lt;φ4&lt;1.5  (22).
 
     When ΔOPD 3  (unit: μm) represents an absolute value of an optical path length difference given to the light beam having the first wavelength by each third step, and ΔOPD 4  (unit: μm) represents an absolute value of an optical path length difference given to the light beam having the first wavelength by each fourth step, the phase shift surface may satisfy following conditions:
 
1.05&lt;Δ OPD 3/λ1&lt;1.4  (23), and
 
0.50&lt;Δ OPD 4/λ1&lt;0.85  (24).
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
1.10&lt;Δ OPD 3/λ1&lt;1.30  (25), and
 
0.55&lt;Δ OPD 4/λ1&lt;0.75  (26).
 
     When D 3  (unit: mm) represents an absolute value of a height of the paraxially arranged third step in the optical axis direction, and D 4  (unit: mm) represents an absolute value of a height of the paraxially arranged fourth step in the optical axis direction, the phase shift surface may satisfy following conditions:
 
0.85&lt; D 3&lt;1.20  (27), and
 
0.45&lt; D 4&lt;0.85  (28).
 
     In at least one aspect, the phase shift surface may satisfy following conditions:
 
0.95&lt; D 3&lt;1.10  (29), and
 
0.55&lt; D 4&lt;0.75  (30).
 
     When the at least two types of phase shift structures formed in the second area are expressed by diffraction structures defined by expanding an optical path difference function in a form of a following equation:
 
φ ik ( h )=( P   ik2   ×h   2   +P   ik4   ×h   4   +P   ik6   ×h   6   +P   ik8   ×h   8   +P   ik10   ×h   10   +P   ik12   ×h   12 ) m   ik λ
 
     where P ik2 , P ik4 , P ik6  . . . represent coefficients of the 2 nd  order, 4 th  order, 6 th  order, h represents a height from the optical axis, m ik , represents a diffraction order at which the diffraction efficiency of the incident light beam is maximized for the i-th optical path difference function in the k-th area, and λ represents a design wavelength of the light beam being used (incident thereon), 
     the third phase shift structure is a diffraction structure defined by a third optical path difference function in which diffraction orders at which diffraction efficiencies for the light beams having the first and second wavelengths are maximized are all 1 st  orders; and the fourth phase shift structure is a diffraction structure defined by a fourth optical path difference function in which diffraction orders at which diffraction efficiencies for the light beams having the first and second wavelengths are maximized are 1 st  order and 0-th order, respectively. 
     In at least one aspect, the phase shift surface may have a third area which is located outside the second area and which is configured to contribute to converging the light beams having the first wavelength onto the recording surface of the first optical disc and not to contribute converging the light beams having the second and third wavelengths. 
     According to another aspect of the invention, there s provided an optical information recording/reproducing apparatus for recording information and/or reproducing information from three types of optical discs including first, second and third optical discs. The optical information recording/reproducing apparatus includes light sources that emit light beams having a first wave length, a second wavelength and a third wavelength, coupling lenses respectively converting degrees of divergence or convergence of the light beams having the first, second and third wavelengths emitted by the light sources, and one of the above described objective optical system. 
     The optical information recording/reproducing apparatus secures the compatibility with the first to third optical discs by giving the multiple optical effects by the plurality of types of phase shift structures formed in the first area, gives phase changes, which have approximately the same period and are in opposite directions, to the light beam having the first wavelength passed through the first step and the light beam having the first wavelength passed through the second step by satisfying both of the conditions (1) and (2), and thereby aligns the wavefront by cancelling the phase changes with respect to each other. 
    
    
     
       BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS 
         FIG. 1  generally illustrates a configuration of an optical information recording/reproducing apparatus according to an embodiment of the invention. 
         FIGS. 2A and 2B  generally illustrate a configuration of an objective lens according to the embodiment of the invention. 
         FIG. 3  illustrates a side cross section of the objective lens when an optical disc is used in the embodiment of the invention. 
         FIG. 4  is a developed view of a lens shape defined when an aspherical surface shape of a first surface of the objective lens is developed in a flat shape, and shows solely a shape of a phase shift structure formed in each area. 
         FIGS. 5A and 5B  are explanatory illustrations for explaining arrangement intervals of the same type of steps formed in each area of the first surface of the objective lens. 
         FIGS. 6A to 6C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a first example of the invention. 
         FIGS. 7A to 7C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a second example of the invention. 
         FIGS. 8A to 8C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a third example of the invention. 
         FIGS. 9A to 9C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a fourth example of the invention. 
         FIGS. 10A to 10C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a fifth example of the invention. 
         FIGS. 11A to 11C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a sixth example of the invention. 
         FIGS. 12A to 12C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a seventh example of the invention. 
         FIGS. 13A to 13C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a eighth example of the invention. 
         FIGS. 14A to 14C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a ninth example of the invention. 
         FIGS. 15A to 15C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a tenth example of the invention. 
         FIGS. 16A to 16C  are graphs illustrating wavefront aberrations caused when respective optical discs are used in the optical information recording/reproducing apparatus according to a eleventh example of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Hereinafter, an optical system and an optical information recording/reproducing apparatus according to an embodiment of the invention are described with reference to the accompanying drawings. The optical information recording/reproducing apparatus according to the embodiment has the compatibility with three types of optical discs differing in protective layer thickness and recording density. Incidentally, in this specification, the “optical information recording/reproducing apparatuses” include apparatuses for both information reproducing and information recording, apparatuses exclusively for information reproducing, and apparatuses exclusively for information recording. 
     In the following, of the three types of optical discs, a high-recording density optical disc (e.g. BD) is referred to as an optical disc OD 1 , an optical disc (e.g., DVD) having the recording density lower than that of BD is referred to as an optical disc OD 2 , and an optical disc (e.g., CD) having the recording density lower than DVD is referred to as an optical disc OD 3 . 
     When the protective layer thicknesses of the optical discs OD 1 , OD 2  and OD 3  are defined as t 1  (unit: mm), t 2  (unit: mm) and t 3  (unit: mm) respectively, concrete values of the protective layer thicknesses t 1 , t 2  and t 3  are as follows.
 
 t 1≈0.1
 
 t 2≈0.6
 
 t 3≈1.2
 
     In consideration of errors with respective to design values due to individual differences or the temperature change, the protective layer thickness is defined by using the symbol “≈” in each expression. 
     When information recording or information reproducing is performed for the optical discs OD 1 , OD 2  and OD 3 , it is required to change the numerical aperture NA so that a suitable beam spot can be formed depending on the difference in recording density between the optical discs OD 1 , OD 2  and OD 3 . When the optimal design numerical apertures required for information recording or information reproducing for the optical discs OD 1 , OD 2  and OD 3  are defined as NA 1 , NA 2  and NA 3 , respectively, the following relationship holds.
 
 NA 1&gt; NA 2&gt; NA 3
 
That is, when the optical disc OD 1  having the highest recording density is used, it is required to form a beam spot smaller than that for the optical disc OD 2  or OD 3 , and therefore the largest NA is required for the optical disc OD 1 . On the other hand, when the optical disc OD 3  having the lowest recording density is used, it is required to form a beam spot larger than that for the optical disc OD 1  or OD 2 , and therefore the smallest NA is required for the optical disc OD 3 .
 
     For information recording or information reproducing for the optical discs OD 1 , OD 2  and OD 3  differing in recording density, laser beams having different wavelengths are used in the optical information recording/reproducing apparatus. Specifically, when the optical disc OD 1  is used, a laser beam having a wavelength λ 1  (unit: nm) is emitted from a light source to form the smallest beam spot on a recording surface of the optical disc OD 1 . When the optical disc OD 2  is used, a laser beam having a wavelength λ 2  (unit: nm) longer than the wavelength λ 1  is emitted from a light source to form a beam spot larger than that for the optical disc OD 1  on a recording surface of the optical disc OD 2 . When the optical disc OD 3  is used, a laser beam having a wavelength λ 3  (unit: nm) longer than the wavelength λ 2  is emitted from a light source to form a beam spot larger than that for the optical disc D 2  on a recording surface of the optical disc OD 3 . Numerical values of λ 1 , λ 2  and λ 3  are as follows.
 
λ1≈405
 
λ2≈660
 
λ3≈790
 
     Each use wavelength is defined by using the symbol “≈” in each expression so that each use wavelength includes a minute wavelength range within which each use wavelength varies due to individual differences or the temperature change. 
       FIG. 1  generally illustrates a configuration of an optical information recording/reproducing apparatus  100  according to the embodiment. The optical information recording/reproducing apparatus  100  includes a light source  1 A which emits a laser beam having the wavelength λ 1 , a light source  1 B which emits a laser beam having the wavelength λ 2 , a light source  1 C which emits a laser beam having the wavelength λ 3 , diffraction gratings  2 A to  2 C, coupling lenses  3 A to  3 C, beam splitters  41  and  42 , half mirrors  5 A to  5 C, photoreceptors  6 A to  6 C, and an objective lens  10 . In  FIG. 1 , a reference axis AX of the optical information recording/reproducing apparatus  100  is represented by a chain line. The laser beams having the wavelengths λ 1 , λ 2  and λ 3  are respectively represented by a solid line, a dashed line and a dotted line. In a normal state, an optical axis of the objective lens  10  coincides with the reference axis AX. However, there is a case where the optical axis of the objective lens  10  shifts from the reference axis AX for a tracking operation in which the objective lens  10  moves in a radial direction of the optical disc by a tracking mechanism. 
     In the optical information recording/reproducing apparatus  100 , the required numerical apertures NAs of the objective lens  10  differ between the optical discs. Therefore, the optical information recording/reproducing apparatus  100  may be configured to use an aperture restriction element (not shown) for defining the beam diameter for each of the laser beams having the wavelengths λ 1 , λ 2  and λ 3 . 
     The laser beams having the wavelengths λ 1 , λ 2  and λ 3  are emitted from the light sources  1 A,  1 B and  1 C, when the optical discs OD 1 , OD 2  and OD 3  are used, respectively. The laser beams having the wavelengths λ 1 , λ 2  and λ 3  respectively pass through the diffraction gratings  2 A,  2 B and  2 C, optical paths of the laser beams having the wavelengths λ 1 , λ 2  and λ 3  are bent by the half mirrors  5 A,  5 B and  5 C, respectively, and then the laser beams having the wavelengths λ 1 , λ 2  and λ 3  enter the coupling lenses  3 A,  3 B and  3 C, respectively. The coupling lenses  3 A,  3 B and  3 C respectively convert the laser beams having the wavelengths λ 1 , λ 2  and λ 3  into collimated beams. Each of the collimated laser beams having the wavelengths λ 1  and λ 2  is incident on the objective lens  10  via the beam splitters  41  and  42 . The collimated laser beam having the wavelengths λ 3  is incident on the objective lens  10  via the beam splitter  42 . The objective lens  10  converges the incident laser beams having the wavelengths λ 1 , λ 2  and λ 3  at positions in the vicinities of the recording surfaces of the optical discs OD 1 , OD 2  and OD 3 , respectively. The converged laser beams form beam spots on the recording surfaces of the optical discs OD 1 , OD 2  and OD 3 , respectively. The laser beams reflected from the recording surfaces of the optical discs OD 1 , OD 2  and OD 3  return along the same optical paths proceeding to the optical discs, and are detected by the photoreceptors  6 A,  6 B and  6 C while passing through the half mirrors  5 A,  5 B and  5 C. The photoreceptors  6 A to  6 C output detection signals to a signal processing circuit (which may have a known configuration). Based on the outputs from the photoreceptors  6 A to  6 C, the signal processing circuit detects a focusing error signal, a tracking error signal and a reproduction signal of the information recorded on the optical disc. 
     As described above, each of the laser beams emerging from the coupling lenses  3 A to  3 C is the collimated beam. That is, each of the coupling lenses  3 A to  3 C functions as a collimator lens. As described above, by employing a configuration in which the collimated beam is incident on the objective lens  10 , it becomes possible to prevent occurrence of off-axis aberrations, such as a coma, even when the objective lens  10  shifts for the tracking operation. It should be noted that the scope of the present invention is not limited to the configuration where the collimated beam is incident on the objective lens  10 , but the scope of the present invention encompasses a so-called finite optical system where a diverging laser beam having a low degree of divergence is incident on an optical component, such as an objective lens. By employing a finite optical system, it becomes possible to correct the spherical aberration which remains when the optical disc OD 3  is used, and to easily secure an adequate working distance. 
       FIG. 2A  is a front view of the objective lens  10 , and  FIG. 2B  is a side cross sectional view of the objective lens  10 .  FIG. 3  is a side cross sectional view of the objective lens  10  when the optical disc OD 1  (, OD 2  or OD 3 ) is used. As described above, the objective lens  10  is used for an optical head of the optical information recording/reproducing apparatus  100  having the compatibility with the plurality of types of optical discs OD 1 , OD 2  and OD 3  based on the different standards, and has the function of converging each laser beam emitted from a semiconductor laser being a light source onto the recording surface of each optical disc. 
     The objective lens  10  is a biconvex single element lens made of resin, and has a first surface  10   a  facing the beam splitter  42  and a second surface  10   b  facing the optical disc. Each of the first and second surfaces  10   a  and  10   b  of the objective lens  10  is an aspherical surface. A shape of an aspherical surface is expressed by a following equation: 
     
       
         
           
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                   h 
                   8 
                 
               
               + 
               … 
             
           
         
       
     
     where, SAG (a sag amount) is a distance between a point on the aspherical surface at a height of h (unit: mm) from the optical axis and a plane tangential to the aspherical surface at the optical axis, 1/r represents a curvature of the aspherical surface on the optical axis (i.e., r is a curvature radius (unit: mm) of the aspherical surface on the optical axis), κ is a conical coefficient, and A 4 , A 6 , . . . represent aspherical coefficients larger than or equal to the fourth order. By forming each of the surfaces of the objective lens  10  to be an aspherical surface, it becomes possible to appropriately control the various aberrations, such as a spherical aberration and a coma. 
     As shown in  FIG. 2A , the first surface  10   a  of the objective lens  10  includes a circular first area R 1  centering at the optical axis, an annular second area R 2  located outside the first area R 1 , and an annular third area R 3  located outside the second area R 2 . Effective radiuses of the areas R 1 , R 2  and R 3  are defined based on NA 3  (NA 3  is larger than NA 0.3 at the wavelength λ 1 ), NA 2  and NA 1 , respectively. In the areas R 1 , R 2  and R 3 , a phase shift structure is formed. The phase shift structure has a plurality of annular zones (refractive surface zones) which are concentrically formed about the optical axis and are divided by minute steps each of which extends in a direction parallel with the optical axis (see an enlarged view in  FIG. 3 ). The phase shift structure may be formed only on the second surface  10   b , or may be separated to be formed on both of the first and second surfaces  10   a  and  10   b . It should be noted that, by providing the phase shift structure on the first surface  10   a  having a larger effective diameter as in the case of the embodiment, it becomes possible to design the phase shift structure such that the minimum annular zone width to be wide, and thereby it becomes possible to suppress loss of light amount at step portions of the annular zones. Furthermore, there are advantages that the phase shift structure is not worn even when the objective lens  10  is rubbed by a lens cleaner. 
     The phase shift structure may be formed on a separate optical element provided separately from the objective lens  10 . The separate optical element may be arranged, for example, between the objective lens  10  and the beam splitter  42 . In this case, the phase shift structure may be formed on one of surfaces of the separate optical element, or may be separated to be formed on both of the surfaces of the separate optical element. However, in consideration of the fact that aberrations would occur when optical axes of the objective lens and the separate optical element shift with respect to each other, it is preferable that the objective lens and the separate optical element shift together during the tracking operation. 
     Steps constituting the phase shift structure are provided such that a predetermined phase difference (i.e., a predetermined optical path length difference) is caused between a light beam passing through an inner side portion of a boundary of adjacent refractive surface zones and a light beam passing through an outer side portion of the boundary. In general, such a structure may be referred to as a diffraction structure. The phase shift structure configured such that the predetermined optical path length difference is an n-fold (n: integer) of a particular wavelength λα may be referred to as an n-th order diffraction structure having the blazed wavelength λα. The diffraction order of diffracted light which exhibits the maximum diffraction efficiency when a light beam having a particular wavelength λβ passes through the diffraction structure is determined as an integer m which is closest to a value determined by dividing, by the wavelength λβ, the optical path length difference given to the light beam having the wavelength λβ. In the following, the diffraction orders at which the laser beams having the wavelengths λ 1 , λ 2  and λ 3  respectively take the maximum diffraction efficiencies are referred to as “BD use diffraction order”, “DVD use diffraction order” and “CD use diffraction order”, respectively. 
     The diffraction structure (the annular zone structure) can be expressed by an i-th optical path difference function φ ik (h) for a k-th area, where each of i and k is an integer. The optical path difference function φ ik (h) is a function representing the functional capability of the objective lens  10  (a diffraction lens) in a form of an additional optical path length at the height h from the optical axis of the objective lens  10 , and defines positions of steps in the phase shift structure. The optical path difference function φ ik (h) can be expressed by a following equation:
 
φ ik ( h )=( P   ik2   ×h   2   +P   ik4   ×h   4   +P   ik6   ×h   6   +P   ik8   ×h   8   +P   ik10   ×h   10   +P   ik12   ×h   12 ) m   ik λ
 
     where P ik2 , P ik4 , P ik6  . . . represent coefficients of the 2 nd  order, 4 th  order, 6 th  order, h represents a height from the optical axis, m ik , represents a diffraction order at which the diffraction efficiency of the incident laser beam is maximized for the i-th optical path difference function in the k-th area, and λ represents a design wavelength of the laser beam being used (incident thereon). 
     The phase shift structure in the areas R 1  and R 2  has a shape defined by combining at least two types of steps (i.e., at least two types of optical path difference functions). The phase shift structure in the areas R 1  and R 2  gives phase differences (optical path length differences) different from each other, to the incident light beam, by combining the at least two types of steps (optical path difference functions). As a result, multiple optical effects can be given to the incident light beam. 
     In the area R 1 , a phase shift structure (hereafter, referred to as “a phase shift structure r 1 ” for convenience of explanation) defined by combining a first phase shift structure having first steps and a second phase shift structure having second steps is formed. The phase shift structure r 1  contributes to convergence for all of the laser beams having the wavelengths λ 1 , λ 2  and λ 3 . That is, the phase shift structure r 1  is configured to converge the laser beam having the wavelength λ 1  onto the recording surface of the optical disc OD 1 , to converge the laser beam having the wavelength λ 2  onto the recording surface of the optical disc OD 2 , and to converge the laser beam having the wavelength λ 3  onto the recording surface of the optical disc OD 3 . 
       FIG. 4  is a developed view of a lens shape defined when the aspherical surface shape of the first surface  10   a  of the objective lens  10  is developed in a flat shape, and shows solely the shape of the phase shift structure formed in the areas R 1  to R 3 . As shown in  FIG. 4 , in the area R 1 , the first step defining a projected annular zone and the second step defining the recessed shape are formed alternately. 
     When P 1  (unit: mm) represents an arrangement interval (see “P” in the enlarged view in  FIG. 3 ) defined in a direction perpendicular to the optical axis direction between two first steps which adjoin with respect to each other while sandwiching at least one second step therebetween, and P 2  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two second steps which adjoin with respect to each other while sandwiching at least one first step therebetween, i.e., two second steps one of which is sandwiched between the above described two first steps, the phase shift structure r 1  is configured such that, in an area whose effective diameter is larger than NA 0.3 at the wavelength λ 1  in the area R 1 , the phase shift structure r 1  has a plurality of combinations of annular zones which satisfy a following condition:
 
0.95&lt; P 1/ P 2&lt;1.05  (1).
 
     One of the two first steps arranged to have the arrangement interval P 1  closer to the optical axis is defines as a first start step, and the other of the two first steps farther from the optical axis is defined as a first end step. One of the two second steps arranged to have the arrangement interval P 2  closer to the optical axis is defines as a second start step, and the other of the two second steps farther from the optical axis is defined as a second end step. When the first steps are continuously arranged in a direction perpendicular to the optical axis not to have the second step therebetween, the interval arrangement P 1  is determined by defining one of the continuously arranged first steps closest to the optical axis as the first start step and by defining the other of the continuously arranged first steps farthest from the optical axis as the first end step. When the second steps are continuously arranged in a direction perpendicular to the optical axis not to have the first step therebetween, the arrangement interval P 2  is determined by defining one of the continuously arranged second steps closest to the optical axis as the second start step and by defining the other of the continuously arranged second steps farthest from the optical axis as the second end step. 
     The arrangement intervals P 1  and P 2  will now be explained with reference to  FIGS. 5A and 5B . Each of  FIGS. 5A and 5B  is illustrated such that the left side is closer to the optical axis.  FIG. 5A  shows an example of a step structure where the first step and the second step appear alternately. As shown in  FIG. 5A , an interval between the first start step and the first end step adjoining with respect to each other while sandwiching the second start step is the arrangement interval P 1 , and an interval between the second start step and the second end step adjoining with respect to each other while sandwiching the first end step is the arrangement interval P 2 .  FIG. 5B  shows an example of a step structure where the first steps X and Y are continuously arranged without sandwiching the second step. As shown in  FIG. 5B , in this case, the first step X of the first steps X and Y closer to the optical axis is the first start step, and the first end step is not the step Y but the first step Z which is positioned next to the second end step while sandwiching the second end step between the first steps Y and Z. That is, an arrangement interval between the first steps X and Z is the arrangement interval P 1 . The arrangement interval P 2  is an interval between the second start step and the second end step arranged to adjoin with respect to each other while sandwiching the continuously arranged first steps X and Y therebetween. 
     When Δφ 1  (unit: radian) represents a difference between 2π and an absolute value of a phase change caused by the first step with respect to the laser beam having the wavelength λ 1  in the case where the first step gives an additional optical path length to the laser beam having the wavelength λ 1  in the direction indicated by an arrow A in  FIG. 2 , and Δφ 2  (unit: radian) represents a difference between 2π and an absolute vale of the phase change caused by the second step with respect to the laser beam having the wavelength λ 1  in the case where the second step gives an additional optical path length to the laser beam having the wavelength λ 1  in the direction indicated by an arrow B in  FIG. 2  which is opposite to the direction indicated by the arrow A, the phase shift structure r 1  satisfies a following condition (2) at least in an area having an effective diameter larger than NA 0.3 at the wavelength λ 1  in the area R 1 .
 
−3.00&lt;Δφ1/Δφ2&lt;−0.10  (2)
 
     The phase shift structure r 1  secures the compatibility with the optical discs OD 1  to OD 3  by giving the multiple optical effects by the first and second steps to the laser beams having the wavelengths λ 1 , λ 2  and λ 3 , gives phase changes, which have approximately the same period and are in opposite directions, to the laser beam having the wavelength λ 1  passed through the first step and the laser beam having the wavelength λ 1  passed through the second step by satisfying both of the conditions (1) and (2), and thereby aligns the wavefront by cancelling the phase changes with respect to each other. That is, the phase shift structure r 1  is configured to effectively suppress decrease of the light use efficiency due to the phase shift by cancelling the phase shift caused by the phase shift structure with the different phase change, for the laser beam having the wavelength λ 1  for which a particularly high light use efficiency is required. 
     When at least one of the conditions (1) and (2) is not satisfied, the cancelling effect between the phase change given to the laser beam having the wavelength λ 1  passed through the first step and the phase change given to the laser beam having the wavelength λ 1  passed through the second step is small, and therefore a large phase shift remains and it becomes impossible to effectively suppress decrease of the light use efficiency due to the phase shift. 
     In order to more effectively suppress decrease of the light use efficiency of the laser beam having the wavelength λ 1  by enhancing the cancelling effect between the phase change given to the laser beam having the wavelength λ 1  passed through the first step and the phase change given to the laser beam having the wavelength λ 1  passed through the second step, the phase shift structure r 1  may be configured to satisfy a following condition:
 
−1.30&lt;Δφ1/Δφ2&lt;−0.35  (3).
 
     When φ 1  (unit: πradian) represents an absolute value of the phase difference given to the laser beam having the wavelength λ 1  by the first step and φ 2  (unit: πradian) represents an absolute value of the phase difference given to the laser beam having the wavelength λ 1  by the second step, the phase shift structure r 1  may be configured to satisfy following conditions (4) and (5).
 
2.2&lt;φ1&lt;2.8  (4)
 
1.0&lt;φ2&lt;1.70  (5)
 
     When both of the conditions (4) and (5) are satisfied, the wavefront is aligned by the cancelling effect between the phase difference given to the laser beam having the wavelength λ 1  by the first step and the phase difference given to the laser beam having the wavelength λ 1  by the second step. Therefore, decrease of the light use efficiency of the laser beam having the wavelength λ 1  can be suppressed. Regarding the condition (4), the upper limit is determined to secure the light use efficiency larger than or equal to 70% for the laser beam having the wavelength λ 1 , and the lower limit is determined to secure the light use efficiency larger than or equal to 40% for the laser beam having the wavelength λ 3 . Regarding the condition (5), the upper and lower limits are determined to secure the light use efficiency larger than or equal to 50% for the laser beam having the wavelength λ 2 . Furthermore, when both of the conditions (4) and (5) are satisfied, the height of each of the first and second steps is low, which eases the metal mold processing and the molding. Consequently, loss of light amount by a manufacturing error such as a transfer failure can be effectively suppressed. 
     When at least one of the conditions (4) and (5) is not satisfied, the cancelling effect for the phase differences given by the first and second steps is small, and therefore the light use efficiency of the laser beams having the wavelengths λ 2  and λ 3  decreases extremely. Furthermore, when φ 1  gets larger than the upper limit of the condition (4), the height of the first step becomes high. When φ 2  gets smaller than the lower limit of the condition (5), the height of the second step becomes high. In either case, a manufacturing error such as a transfer failure is easy to occur. Therefore, there is a concern that loss of light amount by a manufacturing error is caused largely. The loss of light amount of this type does not contribute to convergence of light onto the recording surface of the optical disc OD 1 , and appears as flare light near the spot, which causes deterioration of a reproducing property. 
     In order to more effectively suppress decrease of the light use efficiency of the laser beam having the wavelength λ 1  by enhancing the cancelling effect between the phase difference given to the laser beam having the wavelength λ 1  by the first step and the phase difference given to the laser beam having the wavelength λ 1  by the second step, the phase shift structure r 1  may be configured to satisfy following conditions (6) and (7).
 
2.3&lt;φ1&lt;2.6  (6)
 
1.1&lt;φ2&lt;1.5  (7)
 
By satisfying the condition (6), the light use efficiency for each of the laser beam having the wavelength of λ 1  and the laser beam having the wavelength λ 3  can be improved by approximately 10%. By satisfying the condition (7), the light use efficiency for the laser beam having the wavelength λ 2  can be improved by approximately 10%.
 
     When ΔOPD 1  (unit: μm) represents an absolute value of the optical path length difference given to the laser beam having the wavelength λ 1  by the first step, and ΔOPD 2  (unit: μm) represents an absolute value of the optical path length difference given to the laser beam having the wavelength λ 1  by the second step, the phase shift structure r 1  may be configured to satisfy following conditions (8) and (9) in place of the conditions (4) and (5).
 
1.1&lt;Δ OPD 1/λ1&lt;1.4  (8)
 
0.50&lt;Δ OPD 2/λ1&lt;0.85  (9)
 
     The phase shift structure r 1  may be configured to satisfy following conditions (10) and (11) in place of the conditions (6) and (7).
 
1.15&lt;Δ OPD 1/λ1&lt;1.30  (10)
 
0.55&lt;Δ OPD 2/λ1&lt;0.75  (11)
 
     When D 1  (unit: μm) represents an absolute value of the height (see a reference symbol “D” in the enlarged view in  FIG. 3 ) of the paraxially arranged first step in the optical axis direction, and D 2  (unit: μm) represents an absolute value of the height of the paraxially arranged second step in the optical axis direction, the phase shift structure r 1  may be configured to satisfy following conditions (12) and (13) in place of the conditions (4) and (5).
 
0.70&lt; D 1&lt;1.10  (12)
 
0.30&lt; D 2&lt;0.70  (13)
 
     The phase shift structure r 1  may be configured to satisfy following conditions (14) and (15) in place of the conditions (6) and (7).
 
0.80&lt; D 1&lt;0.95  (14)
 
0.40&lt; D 2&lt;0.55  (15)
 
     The first phase shift structure can be represented as a diffraction structure defined by a first optical path difference function whose BD use diffraction order, DVD use diffraction order and CD use diffraction order are all the 1 st  orders. In addition, the second phase shift structure can be represented as a diffraction structure defined by a second optical path difference function whose BD use diffraction order, DVD use diffraction order and CD use diffraction order are the 1 st  order, the 0-th order and the 0-th order, respectively. By defining each of the use diffraction orders to be a low order, it becomes possible to set the height of each of the first and second steps to be low, which eases the metal mold processing and the molding. As a result, loss of light amount due to a manufacturing error, such as a transfer failure, can be effectively suppressed. 
     In the area R 2 , a phase shift structure (hereafter, referred to as “a phase shift structure r 2 ” for convenience of explanation) defined by combining a third phase shift structure having third steps and a fourth phase shift structure having fourth steps is formed. The phase shift structure r 2  contributes only to convergence of the laser beams having the wavelength λ 1  and λ 2 . That is, the phase shift structure r 2  is configured to converge the laser beam having the wavelength λ 1  onto the recording surface of the optical disc OD 1 , to converge the laser beam having the wavelength λ 2  onto the recording surface of the optical disc OD 2 , and not to converge the laser beam having the wavelength λ 3  onto the recording surfaces of any of the optical discs OD 1  to OD 3 . As shown in  FIG. 4 , in the area R 2 , generally the third step defining a projected annular zone and the fourth step defining a recessed annular zone are alternately arranged. 
     When P 3  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two third steps which adjoin with respect to each other while sandwiching at least one fourth step, and P 4  (unit: mm) represents an arrangement interval defined in a direction perpendicular to the optical axis direction between two fourth steps which adjoin with respect to each other while sandwiching at least one third step, i.e., two fourth steps one of which is sandwiched between the above described two third steps, the phase shift structure r 2  is configured to have a plurality of combinations of annular zones which satisfy a following condition:
 
0.95&lt; P 3/ P 4&lt;1.05  (16).
 
     One of the two third steps arranged to have the arrangement interval P 3  closer to the optical axis is defines as a third start step, and the other of the two third steps farther from the optical axis is defined as a third end step. One of the two fourth steps arranged to have the arrangement interval P 4  closer to the optical axis is defines as a fourth start step, and the other of the two fourth steps farther from the optical axis is defined as a fourth end step. When the third steps are continuously arranged in a direction perpendicular to the optical axis not to have the fourth step therebetween, the arrangement interval P 3  is determined by defining one of the continuously arranged third steps closest to the optical axis as the third start step and by defining the other of the continuously arranged third step farthest from the optical axis as the third end step. When the fourth steps are continuously arranged in a direction perpendicular to the optical axis not to have the third step therebetween, the arrangement interval P 4  is determined by defining one of the continuously arranged fourth steps closest to the optical axis as the fourth start step and by defining the other of the continuously arranged fourth step farthest from the optical axis as the fourth end step. 
     When Δφ 3  (unit: radian) is represents a difference between 2π and an absolute value of the phase change caused by the third step with respect to the laser beam having the wavelength λ 1  in the case where the third step gives an additional optical path length to the laser beam having the wavelength λ 1  in the direction indicated by the arrow A in  FIG. 2 , and Δφ 4  (unit: radian) represents a difference between 2π and an absolute value of the phase change caused by the fourth step with respect to the laser beam having the wavelength λ 1  when the fourth step gives an additional optical path length to the laser beam having the wavelength λ 1  in the direction indicated by an arrow B in  FIG. 2  which is opposite to the direction indicated by the arrow A, the phase shift structure r 2  satisfies a following condition:
 
−2.70&lt;Δφ3/Δφ4&lt;−0.05  (17).
 
     The phase shift structure r 2  secures the compatibility with the optical discs OD 1  and OD 2  by giving the multiple optical effects by the third and fourth steps to the laser beams having the wavelengths λ 1  and λ 2 , gives phase changes, which have approximately the same period and are in opposite directions, to the laser beam having the wavelength λ 1  passed through the third step and the laser beam having the wavelength λ 1  passed through the fourth step by satisfying both of the conditions (16) and (17), and thereby aligns the wavefront by cancelling the phase changes with respect to each other. That is, the phase shift structure r 2  is configured to effectively suppress decrease of the light use efficiency due to the phase shift by cancelling the phase shift caused by the phase shift structure with the different phase change, for the laser beam having the wavelength λ 1  for which a particularly high light use efficiency is required. 
     When at least one of the conditions (16) and (17) is not satisfied, the cancelling effect between the phase change given to the laser beam having the wavelength λ 1  passed through the third step and the phase change given to the laser beam having the wavelength λ 1  passed through the fourth step is small, and therefore a large phase shift remains and it becomes impossible to effectively suppress decrease of the light use efficiency due to the phase shift. 
     In order to more effectively suppress decrease of the light use efficiency by enhancing the cancelling effect between the phase change given to the laser beam having the wavelength λ 1  passed through the third step and the phase change given to the laser beam having the wavelength λ 1  passed through the fourth step, the phase shift structure r 2  may be configured to satisfy a following condition:
 
−1.05&lt;Δφ3/Δφ4&lt;−0.20  (18).
 
     When φ 3  (unit: πradian) represents an absolute value of the phase difference given to the laser beam having the wavelength λ 1  by the third step and φ 4  (unit: πradian) represents an absolute value of the phase difference given to the laser beam having the wavelength λ 1  by the fourth step, the phase shift structure r 2  may be configured to satisfy following conditions (19) and (20).
 
2.1&lt;φ3&lt;2.8  (19)
 
1.0&lt;φ4&lt;1.70  (20)
 
     When both of the conditions (19) and (20) are satisfied, the wavefront is aligned by the cancelling effect between the phase difference given to the laser beam having the wavelength λ 1  by the third step and the phase difference given to the laser beam having the wavelength λ 1  by the fourth step. Regarding the condition (19), the upper limit is determined to secure the light use efficiency larger than or equal to 70% for the laser beam having the wavelength λ 1 , and the lower limit is determined to secure the light use efficiency larger than or equal to 50% for the laser beam having the wavelength λ 2 . Regarding the condition (20), the upper and lower limits are determined to secure the light use efficiency larger than or equal to 50% for the laser beam having the wavelength λ 2 . Therefore, decrease of the light use efficiency of the laser beam having the wavelength λ 1  can be suppressed. Furthermore, when both of the conditions (19) and (20) are satisfied, the height of each of the third and fourth steps is low, which eases the metal mold processing and the molding. Consequently, loss of light amount by a manufacturing error such as a transfer failure can be effectively suppressed. 
     When at least one of the conditions (19) and (20) is not satisfied, the cancelling effect for the phase differences given by the third and fourth steps is small, and therefore the light use efficiency of the laser beam having the wavelength λ 2  decreases extremely. Furthermore, when φ 3  gets larger than the upper limit of the condition (19), the height of the third step becomes high. When φ 4  gets smaller than the lower limit of the condition (20), the height of the fourth step becomes high. In either case, a manufacturing error such as a transfer failure is easy to occur. Therefore, there is a concern that loss of light amount by a manufacturing error is caused largely. The loss of light amount of this type does not contribute to convergence of light onto the recording surface of the optical disc OD 1 , and appears as flare light near the spot, which causes deterioration of a reproducing property. 
     In order to more effectively suppress decrease of the light use efficiency of the laser beam having the wavelength λ 1  by enhancing the cancelling effect between the phase difference given to the laser beam having the wavelength λ 1  by the third step and the phase difference given to the laser beam having the wavelength λ 1  by the fourth step, the phase shift structure r 2  may be configured to satisfy following conditions (21) and (22).
 
2.2&lt;φ3&lt;2.6  (21)
 
1.1&lt;φ4&lt;1.5  (22)
 
     By satisfying the condition (21), the light use efficiency for each of the laser beam having the wavelength of λ 1  and the laser beam having the wavelength λ 3  can be improved by approximately 10%. By satisfying the condition (22), the light use efficiency for the laser beam having the wavelength λ 2  can be improved by approximately 10%. 
     When ΔOPD 3  (unit: μm) represents an absolute value of the optical path length difference given to the laser beam having the wavelength λ 1  by the third step, and ΔOPD 4  (unit: μm) represents an absolute value of the optical path length difference given to the laser beam having the wavelength λ 1  by the fourth step, the phase shift structure r 2  may be configured to satisfy following conditions (23) and (24) in place of the conditions (19) and (20).
 
1.05&lt;Δ OPD 3/λ1&lt;1.4  (23)
 
0.50&lt;Δ OPD 4/λ1&lt;0.85  (24)
 
     The phase shift structure r 2  may be configured to satisfy following conditions (25) and (26) in place of the conditions (21) and (22).
 
1.10&lt;Δ OPD 3/λ1&lt;1.30  (25)
 
0.55&lt;Δ OPD 4/λ1&lt;0.75  (26)
 
     When D 3  (unit: mm) represents an absolute value of the height of the paraxially arranged third step in the optical axis direction, and D 4  (unit: mm) represents an absolute value of the height of the paraxially arranged fourth step in the optical axis direction, the phase shift structure r 2  may be configured to satisfy following conditions (27) and (28) in place of the conditions (19) and (20).
 
0.85&lt; D 3&lt;1.20  (27)
 
0.45&lt; D 4&lt;0.85  (28)
 
     The phase shift structure r 2  may be configured to satisfy following conditions (29) and (30) in place of the conditions (21) and (22).
 
0.95&lt; D 3&lt;1.10  (29)
 
0.55&lt; D 4&lt;0.75  (30)
 
     The third phase shift structure can be represented as a diffraction structure defined by a third optical path difference function whose BD use diffraction order and DVD use diffraction order are all the 1 st  orders. In addition, the fourth phase shift structure can be represented as a diffraction structure defined by a fourth optical path difference function whose BD use diffraction order and DVD use diffraction order are the 1 st  order and the 0-th order, respectively. By defining each of the use diffraction orders to be a low order, it becomes possible to set the height of each of the third and fourth steps to be low, which eases the metal mold processing and the molding. As a result, loss of light amount due to a manufacturing error, such as a transfer error, can be effectively suppressed. 
     The area R 3  contributes only to convergence of the laser beam having the wavelength λ 1 . That is, the area R 3  is configured to converge the laser beam having the wavelength λ 1  onto the recording surface of the optical disc OD 1  and not converge the laser beams having the wavelengths λ 2  and λ 3  onto any of the optical discs OD 1  to OD 3 . As shown in  FIG. 4 , one type of sawtooth-like annular zone structure is formed in the area R 3 . 
     In the following, eleven concrete examples (first to eleventh examples) of the optical information recording/reproducing apparatus  100  on which the objective lens  10  is mounted are explained. The optical information recording/reproducing apparatus  100  according each of the first to eleventh examples has the configuration generally illustrated in  FIG. 1 . The objective lens  10  according to each of the first to eleventh examples has the configuration generally illustrated in  FIGS. 2 and 3 . Actual differences between the optical elements produced in accordance with the numerical values of the first to eleventh examples are minute in the scaling of the accompanying drawings. Therefore, the whole configurations of the optical information recording/reproducing apparatus  100  according to the first to eleventh examples are explained with reference to  FIG. 1 , and the configurations of the objective lens  10  according to the first to eleventh examples are explained with reference to  FIG. 3 . 
     First Example 
     Hereafter, a first example of the optical information recording/reproducing apparatus  100  is described. The specifications of the objective lens  10  mounted on the optical information recording/reproducing apparatus  100  according to the first example are indicated in the following Table 1. Specifically, Table 1 shows the design wavelength (use wavelength) (unit: nm), the focal length (unit: mm), NA and the magnification of the objective lens  10 . Various definitions regarding Tables and drawings in the first example are also applied to Tables and drawings in the other examples. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.765 
                 1.990 
                 2.053 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     As shown by the magnification in Table 1, in the optical information recording/reproducing apparatus  100  according to the first example, each of the laser beams used for the respective optical discs OD 1  to OD 3  is incident on the objective lens  10  as a collimated beam. Therefore, it is possible to prevent the off-axis aberrations from occurring when the objective lens  10  is shifted for a tracking operation. 
     The following Table 2 shows the numeral configuration of the optical information recording/reproducing apparatus  100  defined when each of the optical discs OD 1  to DO 3  is used. 
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 2 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.110 
                 1.880 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.106 
               
               
                 1-3 
                 0.999 
               
               
                 2 
                 −2.938 
                 0.673 
                 0.613 
                 0.305 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53635 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     In Table 2, the surface numbers 1-1, 1-2 and 103 represent the areas R 1 , R 2  and R 3  of the first surface  10   a  of the objective lens  10 , respectively. The surface number 2 represents the second surface  10   b  of the objective lens  10 . The surface number 3 represents the protective layer of the targeted optical disc. In Table 2, “r” denotes the curvature radius (unit: mm) of each optical surface, “d(405 nm)” denotes the thickness of an optical component or the distance (unit: mm) from each optical surface to the next optical surface defined when the optical disc OD 1  is used, “d(660 nm)” denotes the thickness of an optical component or the distance (unit: mm) from each optical surface to the next optical surface defined when the optical disc OD 2  is used, and “d(790 nm)” denotes the thickness of an optical component or the distance (unit: mm) from each optical surface to the next optical surface defined when the optical disc OD 3  is used. “n (406 nm)”, “n (660 nm)” and “n (790 nm)” represent the refractive indexes at the respective wavelengths indicated in the parentheses. 
     Each of the first surface  10   a  (surface numbers 1-1. 1-2 and 1-3) and the second surface  10   b  of the objective lens  10  are aspherical surfaces. Each of the aspherical surfaces is designed to be most suitable for information recording or information reproducing for the optical discs OD 1  to OD 3 . The following Table 3 shows the conical coefficients κ and aspherical coefficients A 4 , A 6  . . . of each aspherical surface. In each of Tables, the notation “E” means the power of 10 with an exponent specified by the number to the right of E (e.g. “E-04” means “×10 −4 ”). 
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 3 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 2.87100E−02 
                 −9.85200E−02  
                 −7.50430E−02 
                  3.51110E−01 
               
               
                 A6 
                 1.16600E−02 
                 2.10900E−01 
                  7.83770E−02 
                 −5.61660E−01 
               
               
                 A8 
                 −8.80800E−04  
                 −9.51300E−02  
                 −2.77640E−02 
                  9.15020E−01 
               
               
                 A10 
                 −8.91600E−05  
                 9.89250E−03 
                  3.02130E−02 
                 −1.08740E+00 
               
               
                 A12 
                 1.96460E−04 
                 2.33830E−03 
                 −2.48190E−02 
                  8.39010E−01 
               
               
                 A14 
                   
                   
                  1.05710E−02 
                 −3.94180E−01 
               
               
                 A16 
                   
                   
                 −1.80380E−03 
                  1.02480E−01 
               
               
                 A18 
                   
                   
                   
                 −1.12240E−02 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     Each of the areas R 1  to R 3  has a unique phase shift structure (diffraction structure). Coefficients of optical path difference functions for defining the phase shift structure in each of the areas on the first surface  10   a  and the use diffraction orders are shown in Tables 4 and 5. “1-1” in each of Tables 4 and 5 represents BD use diffraction order/DVD use diffraction order/CD use diffraction order (1/1/1 in the first phase shift structure, 1/0/0 in the second phase shift structure) in the first and second phase shift structures constituting the phase shift structure r 1  in the area R 1 , and the optical path difference function coefficients of the first and second phase shift structures. “1-2” in each of the Tables 4 and 5 represents BD use diffraction order/DVD use diffraction order/CD use diffraction order (1/1/- in the third phase shift structure, 1/0/- in the fourth phase shift structure) in the third and fourth phase shift structures constituting the phase shift structure r 2  in the area R 2 , and the optical path difference function coefficients of the third and fourth phase shift structures. “1-3” in Table 5 represents the BD use diffraction order (2/-/-) in the phase shift structure formed in the area R 3 , and the optical path difference coefficients of the phase shift structure. 
     
       
         
               
               
               
               
             
           
               
                 TABLE 4 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 5.76530E+01 
                 5.89870E+01 
                 4.49720E+01 
               
               
                 P4 
                 −1.41280E+01  
                 −1.20860E+02  
                 −8.67570E+01  
               
               
                 P6 
                 5.21900E+00 
                 1.86980E+02 
                 5.43030E+01 
               
               
                 P8 
                 −2.88500E+00  
                 −1.04760E+02  
                 −1.14172E+01  
               
               
                 P10 
                 9.07300E−03 
                 1.94830E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 5 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.69430E+01 
                 −3.60230E+01 
               
               
                   
                 P4 
                 −7.43100E+00 
                 −7.73070E+01 
               
               
                   
                 P6 
                  1.62700E+00 
                  1.21400E+02 
               
               
                   
                 P8 
                 −9.77900E−01 
                 −6.85160E+01 
               
               
                   
                 P10 
                 −1.54900E−01 
                  1.27460E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     The concrete configuration of the phase shift structure formed in the areas R 1  to R 3  are shown in the following Tables 6A to 6C. In Tables 6A to 6C, the number of each annular zone constituting the phase shift structure is assigned in the order from the optical axis. The annular zone number 60 in  FIG. 6A  is followed by the annular one number 61 in Table 6B, and the annular zone number 120 in Table 6B is followed by the annular zone number 121 in Table 6C. The width of each annular zone is defined by an “annular zone start position” and an “annular zone end position” in Tables 6A to 6C. In Tables 6A to 6C, phase differences φ 1  to φ 4 , optical path length differences ΔOPD 1 /λ 1  to ΔOPD 4 /λ 1  and the heights of steps D 1  to D 4  between the annular zones (steps), and, the phase difference, the optical path length difference and the height of each step in the phase shift structure in the area R 3  are also shown. 
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 6A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First 
                 0 
                 0.000 
                 0.071 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 Area 
                 1 
                 0.071 
                 0.126 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 2 
                 0.126 
                 0.163 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.092 
                   
               
               
                   
                 3 
                 0.163 
                 0.194 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.068 
                   
                 0.734 
               
               
                   
                 4 
                 0.194 
                 0.220 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.078 
                   
               
               
                   
                 5 
                 0.220 
                 0.240 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.069 
                   
                 0.888 
               
               
                   
                 6 
                 0.240 
                 0.263 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 7 
                 0.263 
                 0.283 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.042 
                   
               
               
                   
                 8 
                 0.283 
                 0.301 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.039 
                   
                 0.919 
               
               
                   
                 9 
                 0.301 
                 0.319 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.051 
                   
               
               
                   
                 10 
                 0.319 
                 0.334 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.048 
                   
                 0.946 
               
               
                   
                 11 
                 0.334 
                 0.350 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 12 
                 0.350 
                 0.365 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.031 
                   
               
               
                   
                 13 
                 0.365 
                 0.380 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.030 
                   
                 0.963 
               
               
                   
                 14 
                 0.380 
                 0.394 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.029 
                   
               
               
                   
                 15 
                 0.394 
                 0.408 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.028 
                   
                 0.967 
               
               
                   
                 16 
                 0.408 
                 0.421 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.038 
                   
               
               
                   
                 17 
                 0.421 
                 0.432 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.037 
                   
                 0.970 
               
               
                   
                 18 
                 0.432 
                 0.445 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 19 
                 0.445 
                 0.457 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.025 
                   
               
               
                   
                 20 
                 0.457 
                 0.469 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.971 
               
               
                   
                 21 
                 0.469 
                 0.481 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.024 
                   
               
               
                   
                 22 
                 0.481 
                 0.492 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.978 
               
               
                   
                 23 
                 0.492 
                 0.503 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.032 
                   
               
               
                   
                 24 
                 0.503 
                 0.513 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.031 
                   
                 0.977 
               
               
                   
                 25 
                 0.513 
                 0.523 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 26 
                 0.523 
                 0.534 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.021 
                   
               
               
                   
                 27 
                 0.534 
                 0.544 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.983 
               
               
                   
                 28 
                 0.544 
                 0.554 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
                   
               
               
                   
                 29 
                 0.554 
                 0.564 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.980 
               
               
                   
                 30 
                 0.564 
                 0.574 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
                   
               
               
                   
                 31 
                 0.574 
                 0.583 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.981 
               
               
                   
                 32 
                 0.583 
                 0.593 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
                   
               
               
                   
                 33 
                 0.593 
                 0.602 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.986 
               
               
                   
                 34 
                 0.602 
                 0.611 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.026 
                   
               
               
                   
                 35 
                 0.611 
                 0.619 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.026 
                   
                 0.985 
               
               
                   
                 36 
                 0.619 
                 0.628 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 37 
                 0.628 
                 0.637 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
                   
               
               
                   
                 38 
                 0.637 
                 0.646 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.988 
               
               
                   
                 39 
                 0.646 
                 0.654 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
                   
               
               
                   
                 40 
                 0.654 
                 0.663 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.989 
               
               
                   
                 41 
                 0.663 
                 0.671 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
                   
               
               
                   
                 42 
                 0.671 
                 0.679 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.988 
               
               
                   
                 43 
                 0.679 
                 0.687 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
                   
               
               
                   
                 44 
                 0.687 
                 0.695 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.987 
               
               
                   
                 45 
                 0.695 
                 0.703 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
                   
               
               
                   
                 46 
                 0.703 
                 0.711 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.988 
               
               
                   
                 47 
                 0.711 
                 0.719 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
                   
               
               
                   
                 48 
                 0.719 
                 0.727 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.990 
               
               
                   
                 49 
                 0.727 
                 0.735 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
                   
               
               
                   
                 50 
                 0.735 
                 0.742 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.992 
               
               
                   
                 51 
                 0.742 
                 0.750 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
                   
               
               
                   
                 52 
                 0.750 
                 0.757 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.992 
               
               
                   
                 53 
                 0.757 
                 0.764 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
                   
               
               
                   
                 54 
                 0.764 
                 0.772 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.991 
               
               
                   
                 55 
                 0.772 
                 0.779 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
                   
               
               
                   
                 56 
                 0.779 
                 0.786 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.990 
               
               
                   
                 57 
                 0.786 
                 0.793 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
                   
               
               
                   
                 58 
                 0.793 
                 0.800 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.990 
               
               
                   
                 59 
                 0.800 
                 0.807 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
                   
               
               
                   
                 60 
                 0.807 
                 0.814 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.992 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 6B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.814 
                 0.821 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
                   
               
               
                   
                 62 
                 0.821 
                 0.828 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.993 
               
               
                   
                 63 
                 0.828 
                 0.835 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
                   
               
               
                   
                 64 
                 0.835 
                 0.842 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.993 
               
               
                   
                 65 
                 0.842 
                 0.848 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
                   
               
               
                   
                 66 
                 0.848 
                 0.855 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 67 
                 0.855 
                 0.861 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
                   
               
               
                   
                 68 
                 0.861 
                 0.868 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.990 
               
               
                   
                 69 
                 0.868 
                 0.875 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 70 
                 0.875 
                 0.882 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
                   
               
               
                   
                 71 
                 0.882 
                 0.888 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.994 
               
               
                   
                 72 
                 0.888 
                 0.895 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
                   
               
               
                   
                 73 
                 0.895 
                 0.901 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 74 
                 0.901 
                 0.907 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
                   
               
               
                   
                 75 
                 0.907 
                 0.913 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.995 
               
               
                   
                 76 
                 0.913 
                 0.920 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
                   
               
               
                   
                 77 
                 0.920 
                 0.926 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.995 
               
               
                   
                 78 
                 0.926 
                 0.933 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 79 
                 0.933 
                 0.939 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
                   
               
               
                   
                 80 
                 0.939 
                 0.945 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.993 
               
               
                   
                 81 
                 0.945 
                 0.951 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
                   
               
               
                   
                 82 
                 0.951 
                 0.957 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.993 
               
               
                   
                 83 
                 0.957 
                 0.963 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
                   
               
               
                   
                 84 
                 0.963 
                 0.968 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.993 
               
               
                   
                 85 
                 0.968 
                 0.975 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 86 
                 0.975 
                 0.981 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
                   
               
               
                   
                 87 
                 0.981 
                 0.987 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.995 
               
               
                   
                 88 
                 0.987 
                 0.993 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
                   
               
               
                   
                 89 
                 0.993 
                 0.998 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.997 
               
               
                   
                 90 
                 0.998 
                 1.005 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 91 
                 1.005 
                 1.010 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
                   
               
               
                   
                 92 
                 1.010 
                 1.016 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.993 
               
               
                   
                 93 
                 1.016 
                 1.022 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.011 
                   
               
               
                   
                 94 
                 1.022 
                 1.027 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.993 
               
               
                   
                 95 
                 1.027 
                 1.034 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 96 
                 1.034 
                 1.039 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
                   
               
               
                   
                 97 
                 1.039 
                 1.045 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.998 
               
               
                   
                 98 
                 1.045 
                 1.051 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 99 
                 1.051 
                 1.056 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
                   
               
               
                   
                 100 
                 1.056 
                 1.062 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.993 
               
               
                   
                 101 
                 1.062 
                 1.068 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 102 
                 1.068 
                 1.073 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
                   
               
               
                   
                 103 
                 1.073 
                 1.078 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.994 
               
               
                   
                 104 
                 1.078 
                 1.085 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.023 
                   
               
               
                 Second Area 
                 105 
                 1.085 
                 1.091 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 106 
                 1.091 
                 1.096 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 107 
                 1.096 
                 1.101 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.023 
                   
                 0.989 
               
               
                   
                 108 
                 1.101 
                 1.106 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.010 
                   
               
               
                   
                 109 
                 1.106 
                 1.111 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.010 
                   
                 0.996 
               
               
                   
                 110 
                 1.111 
                 1.116 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.010 
                   
               
               
                   
                 111 
                 1.116 
                 1.121 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.010 
                   
                 0.996 
               
               
                   
                 112 
                 1.121 
                 1.126 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.014 
                   
               
               
                   
                 113 
                 1.126 
                 1.130 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.014 
                   
                 0.995 
               
               
                   
                 114 
                 1.130 
                 1.135 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                   
                   
                   
               
               
                   
                 115 
                 1.135 
                 1.140 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.010 
                   
               
               
                   
                 116 
                 1.140 
                 1.145 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.010 
                   
                 0.996 
               
               
                   
                 117 
                 1.145 
                 1.150 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.010 
                   
               
               
                   
                 118 
                 1.150 
                 1.154 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.010 
                   
                 0.996 
               
               
                   
                 119 
                 1.154 
                 1.159 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.010 
                   
               
               
                   
                 120 
                 1.159 
                 1.164 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.010 
                   
                 0.996 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 6C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.164 
                 1.169 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 122 
                 1.169 
                 1.173 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 123 
                 1.173 
                 1.178 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 124 
                 1.178 
                 1.183 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 125 
                 1.183 
                 1.188 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 126 
                 1.188 
                 1.192 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 127 
                 1.192 
                 1.197 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 128 
                 1.197 
                 1.201 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 129 
                 1.201 
                 1.206 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 130 
                 1.206 
                 1.211 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 131 
                 1.211 
                 1.215 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 132 
                 1.215 
                 1.220 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 133 
                 1.220 
                 1.225 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.014 
                   
               
               
                   
                 134 
                 1.225 
                 1.229 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 135 
                 1.229 
                 1.234 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.014 
                   
                 0.997 
               
               
                   
                 136 
                 1.234 
                 1.238 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 137 
                 1.238 
                 1.243 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.996 
               
               
                   
                 138 
                 1.243 
                 1.248 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.014 
                   
               
               
                   
                 139 
                 1.248 
                 1.252 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 140 
                 1.252 
                 1.257 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.014 
                   
                 0.996 
               
               
                   
                 141 
                 1.257 
                 1.262 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.014 
                   
               
               
                   
                 142 
                 1.262 
                 1.266 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 144 
                 1.266 
                 1.271 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.014 
                   
                 1.020 
               
               
                   
                 145 
                 1.271 
                 1.275 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                 0.009 
                   
               
               
                   
                 146 
                 1.275 
                 1.279 
                   
                 1.48 
                   
                 0.74 
                   
                 0.60 
                 0.009 
                   
                 0.960 
               
               
                   
                 147 
                 1.279 
                 1.284 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                   
                 148 
                 1.284 
                 1.290 
                 2.36 
                   
                 1.18 
                   
                 0.94 
                   
                   
                   
                   
               
               
                 Third Area 
                 149 
                 1.290 
                 1.353 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 150 
                 1.353 
                 1.393 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 151 
                 1.393 
                 1.418 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 152 
                 1.418 
                 1.437 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 153 
                 1.437 
                 1.452 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 154 
                 1.452 
                 1.465 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 155 
                 1.465 
                 1.476 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 156 
                 1.476 
                 1.486 
                 4.00 
                   
                 2.00 
                   
                 0.88 
                   
                   
                   
                   
               
               
                   
                 157 
                 1.486 
                 1.495 
                 4.00 
                   
                 2.00 
                   
                 0.88 
               
               
                   
               
             
          
         
       
     
       FIG. 6A  is a graph illustrating a wavefront aberration cased when the optical disc OD 1  is used in the optical information recording/reproducing apparatus  100  according to the first example,  FIG. 6B  is a graph illustrating a wavefront aberration cased when the optical disc OD 2  is used in the optical information recording/reproducing apparatus  100  according to the first example, and  FIG. 6C  is a graph illustrating a wavefront aberration cased when the optical disc OD 3  is used in the optical information recording/reproducing apparatus  100  according to the first example. In each of  FIGS. 6A ,  6 B and  6 C, the vertical axis represents the amount wavefront aberration, and the horizontal axis represents the coordinate of the entrance pupil. 
     Second Example 
     Hereafter, a second example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the second example are shown in Tables 7 to 11 and 12A to 12C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the second example are shown in  FIGS. 7A to 7C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 7 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.765 
                 1.990 
                 2.053 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 8 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.105 
                 1.780 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.050 
               
               
                 1-3 
                 1.039 
               
               
                 2 
                 −3.229 
                 0.724 
                 0.655 
                 0.345 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 9 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 3.17140E−02 
                 −2.91700E−01  
                 −2.33400E−02 
                  3.14670E−01 
               
               
                 A6 
                 1.04200E−02 
                 4.89140E−01 
                  5.12560E−02 
                 −6.04070E−01 
               
               
                 A8 
                 −1.26060E−03  
                 −2.22700E−01  
                 −2.77250E−02 
                  1.06890E+00 
               
               
                 A10 
                 −1.41370E−03  
                 2.26340E−02 
                  3.53320E−02 
                 −1.23230E+00 
               
               
                 A12 
                 1.01710E−03 
                 4.06430E−03 
                 −2.96020E−02 
                  8.80450E−01 
               
               
                 A14 
                   
                   
                  1.30850E−02 
                 −3.78960E−01 
               
               
                 A16 
                   
                   
                 −2.25550E−03 
                  9.04170E−02 
               
               
                 A18 
                   
                   
                   
                 −9.19750E−03 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 10 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 5.57500E+01 
                 7.51580E+01 
                 3.02880E+01 
               
               
                 P4 
                 −1.37570E+01  
                 −2.86320E+02  
                 −4.99460E+01  
               
               
                 P6 
                 7.03400E+00 
                 4.43620E+02 
                 3.04440E+01 
               
               
                 P8 
                 −5.26700E+00  
                 −2.41880E+02  
                 −6.61850E+00  
               
               
                 P10 
                 6.53300E−01 
                 4.29410E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 11 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.49340E+01 
                 −2.15520E+01 
               
               
                   
                 P4 
                 −5.73000E+00 
                 −1.85150E+02 
               
               
                   
                 P6 
                 −1.77800E+00 
                  2.85980E+02 
               
               
                   
                 P8 
                  9.42700E−01 
                 −1.55790E+02 
               
               
                   
                 P10 
                 −3.96600E−01 
                  2.77120E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 12A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.072 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.072 
                 0.127 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 2 
                 0.127 
                 0.166 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.094 
                   
               
               
                   
                 3 
                 0.166 
                 0.198 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.070 
                   
                 0.748 
               
               
                   
                 4 
                 0.198 
                 0.224 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.081 
                   
               
               
                   
                 5 
                 0.224 
                 0.247 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.071 
                   
                 0.879 
               
               
                   
                 6 
                 0.247 
                 0.269 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 7 
                 0.269 
                 0.289 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.042 
                   
               
               
                   
                 8 
                 0.289 
                 0.308 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.039 
                   
                 0.927 
               
               
                   
                 9 
                 0.308 
                 0.326 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.053 
                   
               
               
                   
                 10 
                 0.326 
                 0.342 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.050 
                   
                 0.950 
               
               
                   
                 11 
                 0.342 
                 0.359 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 12 
                 0.359 
                 0.374 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.032 
                   
               
               
                   
                 13 
                 0.374 
                 0.389 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.030 
                   
                 0.953 
               
               
                   
                 14 
                 0.389 
                 0.403 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.042 
                   
               
               
                   
                 15 
                 0.403 
                 0.416 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.041 
                   
                 0.965 
               
               
                   
                 16 
                 0.416 
                 0.430 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 17 
                 0.430 
                 0.443 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.026 
                   
               
               
                   
                 18 
                 0.443 
                 0.456 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.026 
                   
                 0.974 
               
               
                   
                 19 
                 0.456 
                 0.468 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.025 
                   
               
               
                   
                 20 
                 0.468 
                 0.480 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.024 
                   
                 0.973 
               
               
                   
                 21 
                 0.480 
                 0.492 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.035 
                   
               
               
                   
                 22 
                 0.492 
                 0.503 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.034 
                   
                 0.978 
               
               
                   
                 23 
                 0.503 
                 0.514 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 24 
                 0.514 
                 0.525 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.022 
                   
               
               
                   
                 25 
                 0.525 
                 0.536 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.022 
                   
                 0.979 
               
               
                   
                 26 
                 0.536 
                 0.546 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.021 
                   
               
               
                   
                 27 
                 0.546 
                 0.556 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.021 
                   
                 0.983 
               
               
                   
                 28 
                 0.556 
                 0.567 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.021 
                   
               
               
                   
                 29 
                 0.567 
                 0.577 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.020 
                   
                 0.982 
               
               
                   
                 30 
                 0.577 
                 0.587 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.029 
                   
               
               
                   
                 31 
                 0.587 
                 0.596 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.029 
                   
                 0.984 
               
               
                   
                 32 
                 0.596 
                 0.605 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 33 
                 0.605 
                 0.615 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.019 
                   
               
               
                   
                 34 
                 0.615 
                 0.624 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.019 
                   
                 0.984 
               
               
                   
                 35 
                 0.624 
                 0.633 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.018 
                   
               
               
                   
                 36 
                 0.633 
                 0.642 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.018 
                   
                 0.987 
               
               
                   
                 37 
                 0.642 
                 0.651 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.018 
                   
               
               
                   
                 38 
                 0.651 
                 0.660 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.018 
                   
                 0.989 
               
               
                   
                 39 
                 0.660 
                 0.668 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.017 
                   
               
               
                   
                 40 
                 0.668 
                 0.677 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.017 
                   
                 0.988 
               
               
                   
                 41 
                 0.677 
                 0.685 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.017 
                   
               
               
                   
                 42 
                 0.685 
                 0.694 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.017 
                   
                 0.987 
               
               
                   
                 43 
                 0.694 
                 0.702 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.017 
                   
               
               
                   
                 44 
                 0.702 
                 0.710 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.016 
                   
                 0.988 
               
               
                   
                 45 
                 0.710 
                 0.718 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.024 
                   
               
               
                   
                 46 
                 0.718 
                 0.726 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.024 
                   
                 0.990 
               
               
                   
                 47 
                 0.726 
                 0.734 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                   
                   
                   
               
               
                   
                 48 
                 0.734 
                 0.742 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.016 
                   
               
               
                   
                 49 
                 0.742 
                 0.750 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.016 
                   
                 0.989 
               
               
                   
                 50 
                 0.750 
                 0.757 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.015 
                   
               
               
                   
                 51 
                 0.757 
                 0.765 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.015 
                   
                 0.991 
               
               
                   
                 52 
                 0.765 
                 0.773 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.015 
                   
               
               
                   
                 53 
                 0.773 
                 0.780 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.015 
                   
                 0.992 
               
               
                   
                 54 
                 0.780 
                 0.788 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.015 
                   
               
               
                   
                 55 
                 0.788 
                 0.795 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.015 
                   
                 0.992 
               
               
                   
                 56 
                 0.795 
                 0.803 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.022 
                   
               
               
                   
                 57 
                 0.803 
                 0.810 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 58 
                 0.810 
                 0.817 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.022 
                   
                 0.984 
               
               
                   
                 59 
                 0.817 
                 0.824 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.014 
                   
               
               
                   
                 60 
                 0.824 
                 0.831 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.014 
                   
                 1.006 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 12B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.831 
                 0.838 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.014 
                   
               
               
                   
                 62 
                 0.838 
                 0.845 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.014 
                   
                 0.992 
               
               
                   
                 63 
                 0.845 
                 0.852 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.014 
                   
               
               
                   
                 64 
                 0.852 
                 0.859 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.014 
                   
                 0.992 
               
               
                   
                 65 
                 0.859 
                 0.866 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.014 
                   
               
               
                   
                 66 
                 0.866 
                 0.873 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.014 
                   
                 0.993 
               
               
                   
                 67 
                 0.873 
                 0.879 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.014 
                   
               
               
                   
                 68 
                 0.879 
                 0.886 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.013 
                   
                 0.995 
               
               
                   
                 69 
                 0.886 
                 0.893 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.013 
                   
               
               
                   
                 70 
                 0.893 
                 0.900 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.013 
                   
                 0.994 
               
               
                   
                 71 
                 0.900 
                 0.906 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.020 
                   
               
               
                   
                 72 
                 0.906 
                 0.913 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 73 
                 0.913 
                 0.919 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.020 
                   
                 0.995 
               
               
                   
                 74 
                 0.919 
                 0.926 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.013 
                   
               
               
                   
                 75 
                 0.926 
                 0.932 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.013 
                   
                 0.993 
               
               
                   
                 76 
                 0.932 
                 0.939 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.013 
                   
               
               
                   
                 77 
                 0.939 
                 0.945 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.013 
                   
                 0.993 
               
               
                   
                 78 
                 0.945 
                 0.952 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.019 
                   
               
               
                   
                 79 
                 0.952 
                 0.958 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 80 
                 0.958 
                 0.964 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.019 
                   
                 0.995 
               
               
                   
                 81 
                 0.964 
                 0.971 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.012 
                   
               
               
                   
                 82 
                 0.971 
                 0.977 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.012 
                   
                 0.996 
               
               
                   
                 83 
                 0.977 
                 0.983 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.012 
                   
               
               
                   
                 84 
                 0.983 
                 0.989 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.012 
                   
                 0.994 
               
               
                   
                 85 
                 0.989 
                 0.995 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.019 
                   
               
               
                   
                 86 
                 0.995 
                 1.002 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 87 
                 1.002 
                 1.008 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.019 
                   
                 0.996 
               
               
                   
                 88 
                 1.008 
                 1.014 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.018 
                   
               
               
                   
                 89 
                 1.014 
                 1.020 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 90 
                 1.020 
                 1.026 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.018 
                   
                 0.996 
               
               
                   
                 91 
                 1.026 
                 1.032 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.012 
                   
               
               
                   
                 92 
                 1.032 
                 1.038 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.012 
                   
                 0.995 
               
               
                   
                 93 
                 1.038 
                 1.044 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.018 
                   
               
               
                   
                 94 
                 1.044 
                 1.050 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 95 
                 1.050 
                 1.056 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.018 
                   
                 0.997 
               
               
                   
                 96 
                 1.056 
                 1.062 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.018 
                   
               
               
                   
                 97 
                 1.062 
                 1.068 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                   
                 98 
                 1.068 
                 1.073 
                   
                 1.31 
                   
                 0.66 
                   
                 0.48 
                 0.018 
                   
                 0.996 
               
               
                   
                 99 
                 1.073 
                 1.079 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                 0.025 
                   
               
               
                   
                 100 
                 1.079 
                 1.085 
                 2.63 
                   
                 1.31 
                   
                 0.95 
                   
                   
                   
                   
               
               
                 Second Area 
                 101 
                 1.085 
                 1.088 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 102 
                 1.088 
                 1.093 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.024 
                   
                 0.954 
               
               
                   
                 103 
                 1.093 
                 1.097 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 104 
                 1.097 
                 1.102 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.023 
                   
               
               
                   
                 105 
                 1.102 
                 1.107 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.023 
                   
                 0.999 
               
               
                   
                 106 
                 1.107 
                 1.111 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 107 
                 1.111 
                 1.116 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 108 
                 1.116 
                 1.121 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 109 
                 1.121 
                 1.125 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.019 
                   
               
               
                   
                 110 
                 1.125 
                 1.130 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.019 
                   
                 1.001 
               
               
                   
                 111 
                 1.130 
                 1.135 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 112 
                 1.135 
                 1.139 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 113 
                 1.139 
                 1.144 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.014 
                   
               
               
                   
                 114 
                 1.144 
                 1.149 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.014 
                   
                 1.002 
               
               
                   
                 115 
                 1.149 
                 1.153 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 116 
                 1.153 
                 1.158 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.014 
                   
               
               
                   
                 117 
                 1.158 
                 1.163 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.014 
                   
                 1.003 
               
               
                   
                 118 
                 1.163 
                 1.167 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 119 
                 1.167 
                 1.172 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.014 
                   
               
               
                   
                 120 
                 1.172 
                 1.177 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.014 
                   
                 1.004 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 12C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.177 
                 1.182 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 122 
                 1.182 
                 1.187 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.010 
                   
               
               
                   
                 123 
                 1.187 
                 1.191 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.010 
                   
                 1.005 
               
               
                   
                 124 
                 1.191 
                 1.196 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.010 
                   
               
               
                   
                 125 
                 1.196 
                 1.201 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.010 
                   
                 1.006 
               
               
                   
                 126 
                 1.201 
                 1.206 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.010 
                   
               
               
                   
                 127 
                 1.206 
                 1.211 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.010 
                   
                 1.007 
               
               
                   
                 128 
                 1.211 
                 1.216 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.010 
                   
               
               
                   
                 129 
                 1.216 
                 1.221 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.010 
                   
                 1.008 
               
               
                   
                 130 
                 1.221 
                 1.226 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.010 
                   
               
               
                   
                 131 
                 1.226 
                 1.231 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.010 
                   
                 1.009 
               
               
                   
                 132 
                 1.231 
                 1.236 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.015 
                   
               
               
                   
                 133 
                 1.236 
                 1.241 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 134 
                 1.241 
                 1.246 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.015 
                   
                 1.011 
               
               
                   
                 135 
                 1.246 
                 1.252 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                 0.027 
                   
               
               
                   
                 136 
                 1.252 
                 1.257 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 137 
                 1.257 
                 1.262 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 138 
                 1.262 
                 1.268 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 139 
                 1.268 
                 1.273 
                   
                 1.34 
                   
                 0.67 
                   
                 0.45 
                 0.027 
                   
                 1.015 
               
               
                   
                 140 
                 1.273 
                 1.279 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 141 
                 1.279 
                 1.285 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                   
                 142 
                 1.285 
                 1.290 
                 2.68 
                   
                 1.34 
                   
                 1.08 
                   
                   
                   
                   
               
               
                 Third Area 
                 144 
                 1.290 
                 1.300 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 145 
                 1.300 
                 1.353 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 146 
                 1.353 
                 1.388 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 147 
                 1.388 
                 1.388 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 148 
                 1.388 
                 1.413 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 149 
                 1.413 
                 1.433 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 150 
                 1.433 
                 1.450 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 151 
                 1.450 
                 1.465 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 152 
                 1.465 
                 1.478 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 153 
                 1.478 
                 1.489 
                 2.00 
                   
                 1.00 
                   
                 0.89 
                   
                   
                   
                   
               
               
                   
                 154 
                 1.489 
                 1.500 
                 2.00 
                   
                 1.00 
                   
                 0.89 
               
               
                   
               
             
          
         
       
     
     Third Example 
     Hereafter, a third example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the third example are shown in Tables 13 to 17 and 18A to 18C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the third example are shown in  FIGS. 8A to 8C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 13 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.765 
                 1.990 
                 2.065 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 14 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.074 
                 1.950 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.155 
               
               
                 1-3 
                 0.962 
               
               
                 2 
                 −2.706 
                 0.641 
                 0.589 
                 0.300 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 15 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 2.70700E−02 
                 8.62100E−02 
                 −8.34760E−02 
                  4.42160E−01 
               
               
                 A6 
                 2.01320E−02 
                 9.10300E−05 
                  7.01540E−02 
                 −7.04410E−01 
               
               
                 A8 
                 −3.61030E−03  
                 −1.42300E−02  
                 −1.12120E−02 
                  1.01100E+00 
               
               
                 A10 
                 1.52870E−03 
                 2.71430E−03 
                  8.35390E−03 
                 −1.10310E+00 
               
               
                 A12 
                 −3.25800E−04  
                 9.73660E−04 
                 −7.80650E−03 
                  8.32790E−01 
               
               
                 A14 
                   
                   
                  3.79750E−03 
                 −3.90120E−01 
               
               
                 A16 
                   
                   
                 −7.52710E−04 
                  9.89130E−02 
               
               
                 A18 
                   
                   
                   
                 −9.59370E−03 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 16 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 7.42110E+01 
                 4.74760E+01 
                 6.00180E+01 
               
               
                 P4 
                 −1.80070E+01  
                 3.31230E+01 
                 −9.50580E+01  
               
               
                 P6 
                 1.05850E+01 
                 −8.79100E+00  
                 5.20440E+01 
               
               
                 P8 
                 −3.89500E+00  
                 −1.53740E+01  
                 −1.00470E+01  
               
               
                 P10 
                 6.00000E−02 
                 5.33400E+00 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 17 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −2.91500E+01 
                 −4.75780E+01 
               
               
                   
                 P4 
                 −9.11300E+00 
                  2.73130E+01 
               
               
                   
                 P6 
                  6.26900E+00 
                 −1.00070E+01 
               
               
                   
                 P8 
                 −4.21500E+00 
                 −9.93300E+00 
               
               
                   
                 P10 
                  5.35900E−01 
                  3.76400E+00 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 18A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
                   
               
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.067 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.067 
                 0.121 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 2 
                 0.121 
                 0.159 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.140 
                   
               
               
                   
                 3 
                 0.159 
                 0.184 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.109 
                   
                 0.783 
               
               
                   
                 4 
                 0.184 
                 0.207 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 5 
                 0.207 
                 0.231 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 6 
                 0.231 
                 0.252 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.063 
                   
               
               
                   
                 7 
                 0.252 
                 0.269 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.057 
                   
                 0.916 
               
               
                   
                 8 
                 0.269 
                 0.288 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 9 
                 0.288 
                 0.306 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.050 
                   
               
               
                   
                 10 
                 0.306 
                 0.320 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.048 
                   
                 0.946 
               
               
                   
                 11 
                 0.320 
                 0.336 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 12 
                 0.336 
                 0.351 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.056 
                   
               
               
                   
                 13 
                 0.351 
                 0.363 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.053 
                   
                 0.960 
               
               
                   
                 14 
                 0.363 
                 0.375 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 15 
                 0.375 
                 0.389 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 16 
                 0.389 
                 0.402 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.038 
                   
               
               
                   
                 17 
                 0.402 
                 0.413 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.037 
                   
                 0.969 
               
               
                   
                 18 
                 0.413 
                 0.426 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 19 
                 0.426 
                 0.438 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.035 
                   
               
               
                   
                 20 
                 0.438 
                 0.448 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.034 
                   
                 0.972 
               
               
                   
                 21 
                 0.448 
                 0.460 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 22 
                 0.460 
                 0.471 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.032 
                   
               
               
                   
                 23 
                 0.471 
                 0.481 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.032 
                   
                 0.977 
               
               
                   
                 24 
                 0.481 
                 0.491 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 25 
                 0.491 
                 0.502 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.030 
                   
               
               
                   
                 26 
                 0.502 
                 0.511 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.030 
                   
                 0.980 
               
               
                   
                 27 
                 0.511 
                 0.521 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 28 
                 0.521 
                 0.531 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.029 
                   
               
               
                   
                 29 
                 0.531 
                 0.540 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.028 
                   
                 0.981 
               
               
                   
                 30 
                 0.540 
                 0.549 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 31 
                 0.549 
                 0.559 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.027 
                   
               
               
                   
                 32 
                 0.559 
                 0.567 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.027 
                   
                 0.983 
               
               
                   
                 33 
                 0.567 
                 0.576 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 34 
                 0.576 
                 0.585 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.026 
                   
               
               
                   
                 35 
                 0.585 
                 0.593 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.026 
                   
                 0.986 
               
               
                   
                 36 
                 0.593 
                 0.602 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 37 
                 0.602 
                 0.611 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.025 
                   
               
               
                   
                 38 
                 0.611 
                 0.618 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.025 
                   
                 0.986 
               
               
                   
                 39 
                 0.618 
                 0.627 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 40 
                 0.627 
                 0.635 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.024 
                   
               
               
                   
                 41 
                 0.635 
                 0.642 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.024 
                   
                 0.986 
               
               
                   
                 42 
                 0.642 
                 0.650 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 43 
                 0.650 
                 0.659 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.016 
                   
               
               
                   
                 44 
                 0.659 
                 0.667 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.016 
                   
                 0.989 
               
               
                   
                 45 
                 0.667 
                 0.675 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.023 
                   
               
               
                   
                 46 
                 0.675 
                 0.681 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.022 
                   
                 0.988 
               
               
                   
                 47 
                 0.681 
                 0.689 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 48 
                 0.689 
                 0.697 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.022 
                   
               
               
                   
                 49 
                 0.697 
                 0.703 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.022 
                   
                 0.990 
               
               
                   
                 50 
                 0.703 
                 0.711 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 51 
                 0.711 
                 0.718 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.021 
                   
               
               
                   
                 52 
                 0.718 
                 0.724 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.021 
                   
                 0.989 
               
               
                   
                 53 
                 0.724 
                 0.732 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 54 
                 0.732 
                 0.739 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.022 
                   
               
               
                   
                 55 
                 0.739 
                 0.746 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.014 
                   
                 0.664 
               
               
                   
                 56 
                 0.746 
                 0.753 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.020 
                   
               
               
                   
                 57 
                 0.753 
                 0.759 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.020 
                   
                 0.990 
               
               
                   
                 58 
                 0.759 
                 0.766 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 59 
                 0.766 
                 0.773 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.020 
                   
               
               
                   
                 60 
                 0.773 
                 0.779 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.020 
                   
                 0.992 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 18B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.779 
                 0.786 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 62 
                 0.786 
                 0.793 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.014 
                   
               
               
                   
                 63 
                 0.793 
                 0.799 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.013 
                   
                 0.990 
               
               
                   
                 64 
                 0.799 
                 0.806 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.019 
                   
               
               
                   
                 65 
                 0.806 
                 0.812 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.019 
                   
                 0.992 
               
               
                   
                 66 
                 0.812 
                 0.818 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 67 
                 0.818 
                 0.825 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.018 
                   
               
               
                   
                 68 
                 0.825 
                 0.830 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.018 
                   
                 0.992 
               
               
                   
                 69 
                 0.830 
                 0.836 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 70 
                 0.836 
                 0.843 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.013 
                   
               
               
                   
                 71 
                 0.843 
                 0.849 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.013 
                   
                 0.992 
               
               
                   
                 72 
                 0.849 
                 0.855 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.018 
                   
               
               
                   
                 73 
                 0.855 
                 0.861 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.018 
                   
                 0.993 
               
               
                   
                 74 
                 0.861 
                 0.867 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 75 
                 0.867 
                 0.873 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.012 
                   
               
               
                   
                 76 
                 0.873 
                 0.879 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.012 
                   
                 0.992 
               
               
                   
                 77 
                 0.879 
                 0.885 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.017 
                   
               
               
                   
                 78 
                 0.885 
                 0.890 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.017 
                   
                 0.992 
               
               
                   
                 79 
                 0.890 
                 0.896 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 80 
                 0.896 
                 0.902 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.012 
                   
               
               
                   
                 81 
                 0.902 
                 0.908 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.012 
                   
                 0.993 
               
               
                   
                 82 
                 0.908 
                 0.914 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.017 
                   
               
               
                   
                 83 
                 0.914 
                 0.918 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.016 
                   
                 0.993 
               
               
                   
                 84 
                 0.918 
                 0.924 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 85 
                 0.924 
                 0.930 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.011 
                   
               
               
                   
                 86 
                 0.930 
                 0.936 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.011 
                   
                 0.993 
               
               
                   
                 87 
                 0.936 
                 0.941 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.011 
                   
               
               
                   
                 88 
                 0.941 
                 0.947 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.011 
                   
                 0.994 
               
               
                   
                 89 
                 0.947 
                 0.952 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.016 
                   
               
               
                   
                 90 
                 0.952 
                 0.957 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.016 
                   
                 0.993 
               
               
                   
                 91 
                 0.957 
                 0.963 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 92 
                 0.963 
                 0.968 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.011 
                   
               
               
                   
                 93 
                 0.968 
                 0.973 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.011 
                   
                 0.993 
               
               
                   
                 94 
                 0.973 
                 0.979 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.011 
                   
               
               
                   
                 95 
                 0.979 
                 0.984 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.011 
                   
                 0.994 
               
               
                   
                 96 
                 0.984 
                 0.989 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.015 
                   
               
               
                   
                 97 
                 0.989 
                 0.994 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.015 
                   
                 0.994 
               
               
                   
                 98 
                 0.994 
                 0.999 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 99 
                 0.999 
                 1.004 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 100 
                 1.004 
                 1.010 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.994 
               
               
                   
                 101 
                 1.010 
                 1.015 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 102 
                 1.015 
                 1.020 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.993 
               
               
                   
                 103 
                 1.020 
                 1.025 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 104 
                 1.025 
                 1.030 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.995 
               
               
                   
                 105 
                 1.030 
                 1.035 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.014 
                   
               
               
                   
                 106 
                 1.035 
                 1.039 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.014 
                   
                 0.994 
               
               
                   
                 107 
                 1.039 
                 1.044 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                   
                   
                   
               
               
                   
                 108 
                 1.044 
                 1.049 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 109 
                 1.049 
                 1.054 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.994 
               
               
                   
                 110 
                 1.054 
                 1.059 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 111 
                 1.059 
                 1.064 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.995 
               
               
                   
                 112 
                 1.064 
                 1.069 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 113 
                 1.069 
                 1.074 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                 0.994 
               
               
                   
                 114 
                 1.074 
                 1.078 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                 0.010 
                   
               
               
                   
                 115 
                 1.078 
                 1.083 
                   
                 1.59 
                   
                 0.79 
                   
                 0.57 
                 0.010 
                   
                   
               
               
                   
                 116 
                 1.083 
                 1.090 
                 2.30 
                   
                 1.15 
                   
                 0.83 
                   
                   
                   
                   
               
               
                 Second Area 
                 117 
                 1.090 
                 1.097 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.023 
                   
               
               
                   
                 118 
                 1.097 
                 1.102 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 119 
                 1.102 
                 1.107 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.023 
                   
                 0.997 
               
               
                   
                 120 
                 1.107 
                 1.112 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.015 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 18C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.112 
                 1.117 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 122 
                 1.117 
                 1.121 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.015 
                   
                 0.995 
               
               
                   
                 123 
                 1.121 
                 1.127 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.015 
                   
               
               
                   
                 124 
                 1.127 
                 1.131 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 125 
                 1.131 
                 1.136 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.015 
                   
                 0.995 
               
               
                   
                 126 
                 1.136 
                 1.141 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.014 
                   
               
               
                   
                 127 
                 1.141 
                 1.146 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 128 
                 1.146 
                 1.150 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.014 
                   
                 0.995 
               
               
                   
                 129 
                 1.150 
                 1.156 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.014 
                   
               
               
                   
                 130 
                 1.156 
                 1.160 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 131 
                 1.160 
                 1.165 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.014 
                   
                 0.996 
               
               
                   
                 132 
                 1.165 
                 1.170 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.014 
                   
               
               
                   
                 133 
                 1.170 
                 1.174 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 134 
                 1.174 
                 1.179 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.014 
                   
                 0.996 
               
               
                   
                 135 
                 1.179 
                 1.184 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.019 
                   
               
               
                   
                 136 
                 1.184 
                 1.189 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 137 
                 1.189 
                 1.193 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 138 
                 1.193 
                 1.198 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.019 
                   
                 0.996 
               
               
                   
                 139 
                 1.198 
                 1.203 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.024 
                   
               
               
                   
                 140 
                 1.203 
                 1.208 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 141 
                 1.208 
                 1.213 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 142 
                 1.213 
                 1.217 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 144 
                 1.217 
                 1.221 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.024 
                   
                 0.996 
               
               
                   
                 145 
                 1.221 
                 1.226 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                 0.033 
                   
               
               
                   
                 146 
                 1.226 
                 1.231 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 147 
                 1.231 
                 1.236 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 148 
                 1.236 
                 1.241 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 149 
                 1.241 
                 1.246 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 150 
                 1.246 
                 1.250 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 151 
                 1.250 
                 1.254 
                   
                 1.64 
                   
                 0.82 
                   
                 0.66 
                 0.033 
                   
                 0.996 
               
               
                   
                 152 
                 1.254 
                 1.259 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 153 
                 1.259 
                 1.263 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 154 
                 1.263 
                 1.268 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 155 
                 1.268 
                 1.274 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 156 
                 1.274 
                 1.279 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 157 
                 1.279 
                 1.284 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                   
                 158 
                 1.284 
                 1.290 
                 2.25 
                   
                 1.12 
                   
                 0.90 
                   
                   
                   
                   
               
               
                 Third Area 
                 159 
                 1.290 
                 1.327 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 160 
                 1.327 
                 1.361 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 161 
                 1.361 
                 1.389 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 162 
                 1.389 
                 1.412 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 163 
                 1.412 
                 1.431 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 164 
                 1.431 
                 1.448 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 165 
                 1.448 
                 1.462 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 166 
                 1.462 
                 1.475 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 167 
                 1.475 
                 1.486 
                 4.00 
                   
                 2.00 
                   
                 0.86 
                   
                   
                   
                   
               
               
                   
                 168 
                 1.486 
                 1.500 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
               
             
          
         
       
     
     Fourth Example 
     Hereafter, a fourth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the fourth example are shown in Tables 19 to 23 and 24A to 24C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the fourth example are shown in  FIGS. 9A to 9C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 19 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.769 
                 1.990 
                 2.041 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 20 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.154 
                 2.110 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.149 
               
               
                 1-3 
                 0.936 
               
               
                 2 
                 −2.399 
                 0.554 
                 0.517 
                 0.201 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 21 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 2.26600E−02 
                 −8.26030E−02  
                 −1.10670E−01 
                 5.54800E−01 
               
               
                 A6 
                 1.36540E−02 
                 1.70530E−01 
                  6.51190E−02 
                 −8.60700E−01  
               
               
                 A8 
                 −1.29800E−03  
                 −7.22300E−02  
                 −6.97660E−03 
                 1.10520E+00 
               
               
                 A10 
                 9.27250E−04 
                 9.61100E−03 
                  5.04510E−03 
                 −1.10220E+00  
               
               
                 A12 
                 −6.44100E−04  
                 1.44600E−04 
                 −4.22510E−03 
                 8.32800E−01 
               
               
                 A14 
                   
                   
                  2.01620E−03 
                 −3.85130E−01  
               
               
                 A16 
                   
                   
                 −4.02380E−04 
                 7.18230E−02 
               
               
                 A18 
                   
                   
                   
                 6.65290E−03 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 22 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                  5.10310E+01 
                 5.25750E+01 
                 7.00300E+01 
               
               
                 P4 
                 −1.74740E+01 
                 −1.03600E+02  
                 −1.14880E+02  
               
               
                 P6 
                  5.47100E+00 
                 1.42690E+02 
                 5.15700E+01 
               
               
                 P8 
                 −8.91800E−01 
                 −7.14060E+01  
                 −7.84700E+00  
               
               
                 P10 
                 −7.62500E−01 
                 1.14300E+01 
                 0.00000E+00 
               
               
                 P12 
                  0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 23 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −5.05620E+01 
                 −4.94980E+01 
               
               
                   
                 P4 
                 −9.03900E+00 
                 −6.87640E+01 
               
               
                   
                 P6 
                  4.93600E+00 
                  1.03820E+02 
               
               
                   
                 P8 
                 −2.97800E+00 
                 −5.67320E+01 
               
               
                   
                 P10 
                 −3.44400E−02 
                  9.91000E+00 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 24A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.064 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.064 
                 0.113 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                   
                   
                   
               
               
                   
                 2 
                 0.113 
                 0.165 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.130 
                   
               
               
                   
                 3 
                 0.165 
                 0.193 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 4 
                 0.193 
                 0.217 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.103 
                   
                 0.799 
               
               
                   
                 5 
                 0.217 
                 0.237 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.044 
                   
               
               
                   
                 6 
                 0.237 
                 0.258 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.041 
                   
                 0.937 
               
               
                   
                 7 
                 0.258 
                 0.276 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.039 
                   
               
               
                   
                 8 
                 0.276 
                 0.293 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.035 
                   
                 0.894 
               
               
                   
                 9 
                 0.293 
                 0.310 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.034 
                   
               
               
                   
                 10 
                 0.310 
                 0.324 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.032 
                   
                 0.935 
               
               
                   
                 11 
                 0.324 
                 0.339 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.030 
                   
               
               
                   
                 12 
                 0.339 
                 0.353 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.029 
                   
                 0.972 
               
               
                   
                 13 
                 0.353 
                 0.367 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.027 
                   
               
               
                   
                 14 
                 0.367 
                 0.380 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.027 
                   
                 0.973 
               
               
                   
                 15 
                 0.380 
                 0.392 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.026 
                   
               
               
                   
                 16 
                 0.392 
                 0.405 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.025 
                   
                 0.960 
               
               
                   
                 17 
                 0.405 
                 0.417 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.024 
                   
               
               
                   
                 18 
                 0.417 
                 0.428 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.960 
               
               
                   
                 19 
                 0.428 
                 0.439 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.023 
                   
               
               
                   
                 20 
                 0.439 
                 0.450 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.022 
                   
                 0.978 
               
               
                   
                 21 
                 0.450 
                 0.466 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.037 
                   
               
               
                   
                 22 
                 0.466 
                 0.477 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 23 
                 0.477 
                 0.487 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.036 
                   
                 0.976 
               
               
                   
                 24 
                 0.487 
                 0.497 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.020 
                   
               
               
                   
                 25 
                 0.497 
                 0.506 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.989 
               
               
                   
                 26 
                 0.506 
                 0.516 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.019 
                   
               
               
                   
                 27 
                 0.516 
                 0.525 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.991 
               
               
                   
                 28 
                 0.525 
                 0.534 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.019 
                   
               
               
                   
                 29 
                 0.534 
                 0.543 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.978 
               
               
                   
                 30 
                 0.543 
                 0.556 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.031 
                   
               
               
                   
                 31 
                 0.556 
                 0.565 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 32 
                 0.565 
                 0.574 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.031 
                   
                 0.989 
               
               
                   
                 33 
                 0.574 
                 0.582 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.017 
                   
               
               
                   
                 34 
                 0.582 
                 0.590 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.974 
               
               
                   
                 35 
                 0.590 
                 0.598 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.016 
                   
               
               
                   
                 36 
                 0.598 
                 0.606 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.984 
               
               
                   
                 37 
                 0.606 
                 0.618 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.028 
                   
               
               
                   
                 38 
                 0.618 
                 0.626 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 39 
                 0.626 
                 0.634 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.027 
                   
                 0.987 
               
               
                   
                 40 
                 0.634 
                 0.641 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.015 
                   
               
               
                   
                 41 
                 0.641 
                 0.649 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 1.001 
               
               
                   
                 42 
                 0.649 
                 0.660 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.026 
                   
               
               
                   
                 43 
                 0.660 
                 0.667 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 44 
                 0.667 
                 0.674 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.025 
                   
                 0.979 
               
               
                   
                 45 
                 0.674 
                 0.681 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.014 
                   
               
               
                   
                 46 
                 0.681 
                 0.688 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.994 
               
               
                   
                 47 
                 0.688 
                 0.699 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.024 
                   
               
               
                   
                 48 
                 0.699 
                 0.705 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 49 
                 0.705 
                 0.712 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.993 
               
               
                   
                 50 
                 0.712 
                 0.719 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.014 
                   
               
               
                   
                 51 
                 0.719 
                 0.725 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.974 
               
               
                   
                 52 
                 0.725 
                 0.735 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.023 
                   
               
               
                   
                 53 
                 0.735 
                 0.742 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 54 
                 0.742 
                 0.748 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.997 
               
               
                   
                 55 
                 0.748 
                 0.758 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.022 
                   
               
               
                   
                 56 
                 0.758 
                 0.764 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 57 
                 0.764 
                 0.770 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.022 
                   
                 0.987 
               
               
                   
                 58 
                 0.770 
                 0.776 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.012 
                   
               
               
                   
                 59 
                 0.776 
                 0.782 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 1.001 
               
               
                   
                 60 
                 0.782 
                 0.791 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.021 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 24B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.791 
                 0.797 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 62 
                 0.797 
                 0.803 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.988 
               
               
                   
                 63 
                 0.803 
                 0.812 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.020 
                   
               
               
                   
                 64 
                 0.812 
                 0.818 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 65 
                 0.818 
                 0.823 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.993 
               
               
                   
                 66 
                 0.823 
                 0.832 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.020 
                   
               
               
                   
                 67 
                 0.832 
                 0.838 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 68 
                 0.838 
                 0.843 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.971 
               
               
                   
                 69 
                 0.843 
                 0.849 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.011 
                   
               
               
                   
                 70 
                 0.849 
                 0.854 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 1.032 
               
               
                   
                 71 
                 0.854 
                 0.862 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.019 
                   
               
               
                   
                 72 
                 0.862 
                 0.868 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 73 
                 0.868 
                 0.873 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.996 
               
               
                   
                 74 
                 0.873 
                 0.881 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.019 
                   
               
               
                   
                 75 
                 0.881 
                 0.886 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 76 
                 0.886 
                 0.891 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.991 
               
               
                   
                 77 
                 0.891 
                 0.899 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.018 
                   
               
               
                   
                 78 
                 0.899 
                 0.904 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 79 
                 0.904 
                 0.909 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.988 
               
               
                   
                 80 
                 0.909 
                 0.917 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.018 
                   
               
               
                   
                 81 
                 0.917 
                 0.922 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 82 
                 0.922 
                 0.927 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.992 
               
               
                   
                 83 
                 0.927 
                 0.934 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.025 
                   
               
               
                   
                 84 
                 0.934 
                 0.942 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 85 
                 0.942 
                 0.947 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 86 
                 0.947 
                 0.951 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.993 
               
               
                   
                 87 
                 0.951 
                 0.958 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.017 
                   
               
               
                   
                 88 
                 0.958 
                 0.963 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 89 
                 0.963 
                 0.968 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.998 
               
               
                   
                 90 
                 0.968 
                 0.975 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.016 
                   
               
               
                   
                 91 
                 0.975 
                 0.979 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 92 
                 0.979 
                 0.984 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.991 
               
               
                   
                 93 
                 0.984 
                 0.991 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.023 
                   
               
               
                   
                 94 
                 0.991 
                 0.998 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 95 
                 0.998 
                 1.002 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 96 
                 1.002 
                 1.007 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.997 
               
               
                   
                 97 
                 1.007 
                 1.013 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.022 
                   
               
               
                   
                 98 
                 1.013 
                 1.020 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 99 
                 1.020 
                 1.024 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 100 
                 1.024 
                 1.028 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.022 
                   
                 0.993 
               
               
                   
                 101 
                 1.028 
                 1.035 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.021 
                   
               
               
                   
                 102 
                 1.035 
                 1.041 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 103 
                 1.041 
                 1.046 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 104 
                 1.046 
                 1.050 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.993 
               
               
                   
                 105 
                 1.050 
                 1.056 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.021 
                   
               
               
                   
                 106 
                 1.056 
                 1.062 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 107 
                 1.062 
                 1.066 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                   
                   
               
               
                   
                 108 
                 1.066 
                 1.070 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.995 
               
               
                   
                 109 
                 1.070 
                 1.078 
                 2.19 
                   
                 1.10 
                   
                 0.79 
                   
                   
                 0.011 
                   
               
               
                   
                 110 
                 1.078 
                 1.085 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 1.041 
               
               
                 Second Area 
                 111 
                 1.085 
                 1.090 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 112 
                 1.090 
                 1.095 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.017 
                   
               
               
                   
                 113 
                 1.095 
                 1.099 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.017 
                   
                 0.988 
               
               
                   
                 114 
                 1.099 
                 1.103 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.009 
                   
               
               
                   
                 115 
                 1.103 
                 1.107 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.008 
                   
                 0.993 
               
               
                   
                 116 
                 1.107 
                 1.112 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.008 
                   
               
               
                   
                 117 
                 1.112 
                 1.116 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.008 
                   
                 0.993 
               
               
                   
                 118 
                 1.116 
                 1.120 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.008 
                   
               
               
                   
                 119 
                 1.120 
                 1.124 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.008 
                   
                 0.993 
               
               
                   
                 120 
                 1.124 
                 1.130 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.014 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 24C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.130 
                 1.134 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 122 
                 1.134 
                 1.138 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.014 
                   
                 0.993 
               
               
                   
                 123 
                 1.138 
                 1.142 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.008 
                   
               
               
                   
                 124 
                 1.142 
                 1.146 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.008 
                   
                 0.993 
               
               
                   
                 125 
                 1.146 
                 1.152 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.014 
                   
               
               
                   
                 126 
                 1.152 
                 1.156 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 127 
                 1.156 
                 1.160 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.014 
                   
                 0.999 
               
               
                   
                 128 
                 1.160 
                 1.164 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.008 
                   
               
               
                   
                 129 
                 1.164 
                 1.168 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.008 
                   
                 0.982 
               
               
                   
                 130 
                 1.168 
                 1.173 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.013 
                   
               
               
                   
                 131 
                 1.173 
                 1.177 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 132 
                 1.177 
                 1.181 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.013 
                   
                 0.993 
               
               
                   
                 133 
                 1.181 
                 1.184 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.007 
                   
               
               
                   
                 134 
                 1.184 
                 1.188 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.007 
                   
                 0.992 
               
               
                   
                 135 
                 1.188 
                 1.194 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.013 
                   
               
               
                   
                 136 
                 1.194 
                 1.197 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 137 
                 1.197 
                 1.201 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.013 
                   
                 0.993 
               
               
                   
                 138 
                 1.201 
                 1.206 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.012 
                   
               
               
                   
                 139 
                 1.206 
                 1.210 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 140 
                 1.210 
                 1.213 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.012 
                   
                 0.993 
               
               
                   
                 141 
                 1.213 
                 1.218 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.012 
                   
               
               
                   
                 142 
                 1.218 
                 1.222 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 143 
                 1.222 
                 1.225 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.012 
                   
                 0.993 
               
               
                   
                 144 
                 1.225 
                 1.230 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.017 
                   
               
               
                   
                 145 
                 1.230 
                 1.235 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 146 
                 1.235 
                 1.239 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 147 
                 1.239 
                 1.242 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.017 
                   
                 0.993 
               
               
                   
                 148 
                 1.242 
                 1.247 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.011 
                   
               
               
                   
                 149 
                 1.247 
                 1.250 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 150 
                 1.250 
                 1.253 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.011 
                   
                 0.993 
               
               
                   
                 151 
                 1.253 
                 1.258 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                 0.019 
                   
               
               
                   
                 152 
                 1.258 
                 1.263 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 153 
                 1.263 
                 1.268 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 154 
                 1.268 
                 1.270 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 155 
                 1.270 
                 1.273 
                   
                 1.39 
                   
                 0.69 
                   
                 0.55 
                 0.020 
                   
                 1.017 
               
               
                   
                 156 
                 1.273 
                 1.278 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 157 
                 1.278 
                 1.283 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 158 
                 1.283 
                 1.290 
                 2.19 
                   
                 1.10 
                   
                 0.87 
                   
                   
                   
                   
               
               
                 Third Area 
                 159 
                 1.290 
                 1.295 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 160 
                 1.295 
                 1.309 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 161 
                 1.309 
                 1.323 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 162 
                 1.323 
                 1.338 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 163 
                 1.338 
                 1.352 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 164 
                 1.352 
                 1.368 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 165 
                 1.368 
                 1.383 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 166 
                 1.383 
                 1.399 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 167 
                 1.399 
                 1.415 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 168 
                 1.415 
                 1.431 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 169 
                 1.431 
                 1.448 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 170 
                 1.448 
                 1.464 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 171 
                 1.464 
                 1.481 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 172 
                 1.481 
                 1.500 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
               
             
          
         
       
     
     Fifth Example 
     Hereafter, a fifth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the fifth example are shown in Tables 25 to 29 and 30A and 30B. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the fifth example are shown in  FIGS. 10A to 10C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 25 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.764 
                 2.044 
                 2.119 
               
               
                 NA 
                   
                 0.85 
                 0.62 
                 0.50 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 26 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.186 
                 1.680 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.201 
               
               
                 1-3 
                 1.100 
               
               
                 2 
                 −9.001 
                 0.752 
                 0.689 
                 0.379 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.65098 
                 1.59978 
                 1.59073 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 27 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 3.39000E−02 
                 −9.62700E−02  
                 1.79490E−02 
                  2.16910E−01 
               
               
                 A6 
                 9.47600E−03 
                 2.28350E−01 
                 2.60340E−03 
                 −4.68760E−01 
               
               
                 A8 
                 −2.83860E−03  
                 −1.10000E−01  
                 −2.84670E−03  
                  8.59730E−01 
               
               
                 A10 
                 9.40900E−04 
                 1.31960E−02 
                 9.73240E−03 
                 −1.06950E+00 
               
               
                 A12 
                 −4.56600E−05  
                 2.03100E−03 
                 −8.23430E−03  
                  8.33790E−01 
               
               
                 A14 
                   
                   
                 4.12920E−03 
                 −3.93780E−01 
               
               
                 A16 
                   
                   
                 −8.03760E−04  
                  1.03440E−01 
               
               
                 A18 
                   
                   
                   
                 −1.16320E−02 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 28 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 3.89120E+01 
                 3.41270E+01 
                 3.57850E+01 
               
               
                 P4 
                 −1.14340E+01  
                 −1.30400E+02  
                 −2.33500E+01  
               
               
                 P6 
                 5.76600E+00 
                 2.22700E+02 
                 −3.37100E+00  
               
               
                 P8 
                 −4.78900E+00  
                 −1.29100E+02  
                 2.53300E+00 
               
               
                 P10 
                 5.43500E−01 
                 2.43190E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 29 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −2.03220E+01 
                 −2.40000E+01 
               
               
                   
                 P4 
                 −2.82600E+00 
                 −9.22200E+01 
               
               
                   
                 P6 
                 −1.42400E+00 
                  1.63320E+02 
               
               
                   
                 P8 
                 −1.27200E−01 
                 −9.56250E+01 
               
               
                   
                 P10 
                 −1.30700E−01 
                  1.83210E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 30A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.085 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.085 
                 0.158 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 2 
                 0.158 
                 0.207 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.157 
                   
               
               
                   
                 3 
                 0.207 
                 0.242 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.118 
                   
                 0.754 
               
               
                   
                 4 
                 0.242 
                 0.277 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 5 
                 0.277 
                 0.308 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.090 
                   
               
               
                   
                 6 
                 0.308 
                 0.331 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.081 
                   
                 0.910 
               
               
                   
                 7 
                 0.331 
                 0.358 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 8 
                 0.358 
                 0.383 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.075 
                   
               
               
                   
                 9 
                 0.383 
                 0.406 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.048 
                   
                 0.644 
               
               
                   
                 10 
                 0.406 
                 0.428 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.063 
                   
               
               
                   
                 11 
                 0.428 
                 0.446 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.060 
                   
                 0.951 
               
               
                   
                 12 
                 0.446 
                 0.466 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 13 
                 0.466 
                 0.485 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.040 
                   
               
               
                   
                 14 
                 0.485 
                 0.504 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.038 
                   
                 0.963 
               
               
                   
                 15 
                 0.504 
                 0.522 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.051 
                   
               
               
                   
                 16 
                 0.522 
                 0.536 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.049 
                   
                 0.967 
               
               
                   
                 17 
                 0.536 
                 0.553 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 18 
                 0.553 
                 0.570 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.034 
                   
               
               
                   
                 19 
                 0.570 
                 0.586 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.033 
                   
                 0.973 
               
               
                   
                 20 
                 0.586 
                 0.602 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.044 
                   
               
               
                   
                 21 
                 0.602 
                 0.614 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.043 
                   
                 0.975 
               
               
                   
                 22 
                 0.614 
                 0.629 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 23 
                 0.629 
                 0.644 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.030 
                   
               
               
                   
                 24 
                 0.644 
                 0.658 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.029 
                   
                 0.979 
               
               
                   
                 25 
                 0.658 
                 0.673 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.028 
                   
               
               
                   
                 26 
                 0.673 
                 0.686 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.028 
                   
                 0.981 
               
               
                   
                 27 
                 0.686 
                 0.700 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.038 
                   
               
               
                   
                 28 
                 0.700 
                 0.711 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.038 
                   
                 0.982 
               
               
                   
                 29 
                 0.711 
                 0.724 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                   
                   
                   
               
               
                   
                 30 
                 0.724 
                 0.737 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.026 
                   
               
               
                   
                 31 
                 0.737 
                 0.750 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.026 
                   
                 0.984 
               
               
                   
                 32 
                 0.750 
                 0.762 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.025 
                   
               
               
                   
                 33 
                 0.762 
                 0.775 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.025 
                   
                 0.985 
               
               
                   
                 34 
                 0.775 
                 0.787 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.025 
                   
               
               
                   
                 35 
                 0.787 
                 0.799 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.024 
                   
                 0.986 
               
               
                   
                 36 
                 0.799 
                 0.811 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.024 
                   
               
               
                   
                 37 
                 0.811 
                 0.822 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.024 
                   
                 0.987 
               
               
                   
                 38 
                 0.822 
                 0.834 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.023 
                   
               
               
                   
                 39 
                 0.834 
                 0.845 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.023 
                   
                 0.988 
               
               
                   
                 40 
                 0.845 
                 0.857 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.023 
                   
               
               
                   
                 41 
                 0.857 
                 0.868 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.022 
                   
                 0.988 
               
               
                   
                 42 
                 0.868 
                 0.879 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.022 
                   
               
               
                   
                 43 
                 0.879 
                 0.890 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.022 
                   
                 0.989 
               
               
                   
                 44 
                 0.890 
                 0.902 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.034 
                   
               
               
                   
                 45 
                 0.902 
                 0.913 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 46 
                 0.913 
                 0.924 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.034 
                   
                 0.990 
               
               
                   
                 47 
                 0.924 
                 0.934 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.021 
                   
               
               
                   
                 48 
                 0.934 
                 0.944 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.021 
                   
                 0.991 
               
               
                   
                 49 
                 0.944 
                 0.955 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.021 
                   
               
               
                   
                 50 
                 0.955 
                 0.965 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.020 
                   
                 0.991 
               
               
                   
                 51 
                 0.965 
                 0.977 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.032 
                   
               
               
                   
                 52 
                 0.977 
                 0.987 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 53 
                 0.987 
                 0.997 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.032 
                   
                 0.991 
               
               
                   
                 54 
                 0.997 
                 1.008 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.031 
                   
               
               
                   
                 55 
                 1.008 
                 1.018 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 56 
                 1.018 
                 1.028 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.031 
                   
                 0.992 
               
               
                   
                 57 
                 1.028 
                 1.039 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.030 
                   
               
               
                   
                 58 
                 1.039 
                 1.048 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 59 
                 1.048 
                 1.058 
                   
                 1.32 
                   
                 0.66 
                   
                 0.41 
                 0.030 
                   
                 0.993 
               
               
                   
                 60 
                 1.058 
                 1.069 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                 0.050 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 30B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 1.069 
                 1.080 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 62 
                 1.080 
                 1.085 
                 2.47 
                   
                 1.24 
                   
                 0.77 
                   
                   
                   
                   
               
               
                   
                 63 
                 1.085 
                 1.092 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                   
                   
               
               
                 Second Area 
                 64 
                 1.092 
                 1.099 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.051 
                   
                 1.019 
               
               
                   
                 65 
                 1.099 
                 1.109 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                   
                   
                   
               
               
                   
                 66 
                 1.109 
                 1.119 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.034 
                   
               
               
                   
                 67 
                 1.119 
                 1.126 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.034 
                   
                 0.989 
               
               
                   
                 68 
                 1.126 
                 1.133 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                   
                   
                   
               
               
                   
                 69 
                 1.133 
                 1.143 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                   
                   
                   
               
               
                   
                 70 
                 1.143 
                 1.153 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.026 
                   
               
               
                   
                 71 
                 1.153 
                 1.159 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.026 
                   
                 0.988 
               
               
                   
                 72 
                 1.159 
                 1.169 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                   
                   
                   
               
               
                   
                 73 
                 1.169 
                 1.179 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.026 
                   
               
               
                   
                 74 
                 1.179 
                 1.185 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.025 
                   
                 0.987 
               
               
                   
                 75 
                 1.185 
                 1.194 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                   
                   
                   
               
               
                   
                 76 
                 1.194 
                 1.204 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.019 
                   
               
               
                   
                 77 
                 1.204 
                 1.213 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.018 
                   
                 0.987 
               
               
                   
                 78 
                 1.213 
                 1.222 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.018 
                   
               
               
                   
                 79 
                 1.222 
                 1.231 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.018 
                   
                 0.986 
               
               
                   
                 80 
                 1.231 
                 1.242 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                 0.029 
                   
               
               
                   
                 81 
                 1.242 
                 1.251 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 82 
                 1.251 
                 1.259 
                   
                 1.44 
                   
                 0.72 
                   
                 0.51 
                 0.029 
                   
                 0.986 
               
               
                   
                 83 
                 1.259 
                 1.270 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 84 
                 1.270 
                 1.281 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                   
                   
               
               
                   
                 85 
                 1.281 
                 1.290 
                 2.53 
                   
                 1.27 
                   
                 0.87 
                   
                   
                   
                   
               
               
                 Third Area 
                 86 
                 1.290 
                 1.311 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 87 
                 1.311 
                 1.328 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 88 
                 1.328 
                 1.345 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 89 
                 1.345 
                 1.362 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 90 
                 1.362 
                 1.380 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 91 
                 1.380 
                 1.399 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 92 
                 1.399 
                 1.419 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 93 
                 1.419 
                 1.442 
                 2.00 
                   
                 1.00 
                   
                 0.75 
                   
                   
                   
                   
               
               
                   
                 94 
                 1.442 
                 1.500 
                 2.00 
                   
                 1.00 
                   
                 0.75 
               
               
                   
               
             
          
         
       
     
     Sixth Example 
     Hereafter, a sixth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the sixth example are shown in Tables 31 to 35 and 36A to 36C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the sixth example are shown in  FIGS. 11A to 11C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 31 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.764 
                 1.987 
                 2.049 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 32 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 R 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.065 
                 1.880 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.070 
               
               
                 1-3 
                 0.930 
               
               
                 2 
                 −2.321 
                 0.682 
                 0.636 
                 0.332 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.52469 
                 1.50635 
                 1.50313 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 33 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 1.480 
               
               
                   
               
             
             
               
                 A4 
                 2.78600E−02 
                 −1.06900E−01  
                 −5.44570E−02 
                 3.75670E−01 
               
               
                 A6 
                 1.30660E−02 
                 2.29200E−01 
                  5.02410E−02 
                 −3.90040E−01  
               
               
                 A8 
                 1.72500E−03 
                 −1.01400E−01  
                 −8.23860E−03 
                 3.09680E−01 
               
               
                 A10 
                 6.15300E−04 
                 1.40000E−02 
                  8.31250E−03 
                 −1.55690E−01  
               
               
                 A12 
                 −6.79800E−04  
                 4.48150E−04 
                 −4.12600E−03 
                 3.92700E−02 
               
               
                 A14 
                   
                   
                 −1.10690E−04 
                 1.81960E−03 
               
               
                 A16 
                   
                   
                  9.60710E−04 
                 −1.75900E−03  
               
               
                 A18 
                   
                   
                 −2.79660E−04 
                 −9.38060E−04  
               
               
                 A20 
                   
                   
                   
                 3.92970E−04 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 34 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 6.34550E+01 
                 6.17720E+01 
                 5.65130E+01 
               
               
                 P4 
                 −1.46570E+01  
                 −1.18800E+02  
                 −7.12700E+01  
               
               
                 P6 
                 2.11500E+00 
                 1.81570E+02 
                 3.29000E+01 
               
               
                 P8 
                 1.56700E+00 
                 −9.60000E+01  
                 −5.71400E+00  
               
               
                 P10 
                 −1.36100E+00  
                 1.63070E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 35 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.87210E+01 
                 −3.98800E+01 
               
               
                   
                 P4 
                 −9.27300E+00 
                 −7.91270E+01 
               
               
                   
                 P6 
                  5.25200E+00 
                  1.29200E+02 
               
               
                   
                 P8 
                 −2.65800E+00 
                 −7.28570E+01 
               
               
                   
                 P10 
                 −1.28300E−01 
                  1.32200E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 36A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.070 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.070 
                 0.121 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 2 
                 0.121 
                 0.157 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.087 
                   
               
               
                   
                 3 
                 0.157 
                 0.186 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.065 
                   
                 0.743 
               
               
                   
                 4 
                 0.186 
                 0.211 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.075 
                   
               
               
                   
                 5 
                 0.211 
                 0.232 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.067 
                   
                 0.887 
               
               
                   
                 6 
                 0.232 
                 0.253 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 7 
                 0.253 
                 0.272 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.040 
                   
               
               
                   
                 8 
                 0.272 
                 0.288 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.053 
                   
                 1.332 
               
               
                   
                 9 
                 0.288 
                 0.305 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 10 
                 0.305 
                 0.321 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.033 
                   
               
               
                   
                 11 
                 0.321 
                 0.336 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.031 
                   
                 0.951 
               
               
                   
                 12 
                 0.336 
                 0.351 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.030 
                   
               
               
                   
                 13 
                 0.351 
                 0.365 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.029 
                   
                 0.960 
               
               
                   
                 14 
                 0.365 
                 0.378 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.040 
                   
               
               
                   
                 15 
                 0.378 
                 0.391 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.039 
                   
                 0.966 
               
               
                   
                 16 
                 0.391 
                 0.403 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 17 
                 0.403 
                 0.416 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.025 
                   
               
               
                   
                 18 
                 0.416 
                 0.428 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.024 
                   
                 0.972 
               
               
                   
                 19 
                 0.428 
                 0.439 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.034 
                   
               
               
                   
                 20 
                 0.439 
                 0.450 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.033 
                   
                 0.975 
               
               
                   
                 21 
                 0.450 
                 0.461 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 22 
                 0.461 
                 0.472 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.022 
                   
               
               
                   
                 23 
                 0.472 
                 0.483 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.022 
                   
                 0.978 
               
               
                   
                 24 
                 0.483 
                 0.493 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.021 
                   
               
               
                   
                 25 
                 0.493 
                 0.503 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.021 
                   
                 0.980 
               
               
                   
                 26 
                 0.503 
                 0.513 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.030 
                   
               
               
                   
                 27 
                 0.513 
                 0.523 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.029 
                   
                 0.982 
               
               
                   
                 28 
                 0.523 
                 0.532 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 29 
                 0.532 
                 0.542 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.019 
                   
               
               
                   
                 30 
                 0.542 
                 0.551 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.019 
                   
                 0.984 
               
               
                   
                 31 
                 0.551 
                 0.560 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.019 
                   
               
               
                   
                 32 
                 0.560 
                 0.570 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.018 
                   
                 0.984 
               
               
                   
                 33 
                 0.570 
                 0.579 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.026 
                   
               
               
                   
                 34 
                 0.579 
                 0.587 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.026 
                   
                 0.986 
               
               
                   
                 35 
                 0.587 
                 0.596 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 36 
                 0.596 
                 0.604 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.017 
                   
               
               
                   
                 37 
                 0.604 
                 0.613 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.017 
                   
                 0.987 
               
               
                   
                 38 
                 0.613 
                 0.621 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.017 
                   
               
               
                   
                 39 
                 0.621 
                 0.629 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.017 
                   
                 0.988 
               
               
                   
                 40 
                 0.629 
                 0.637 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.016 
                   
               
               
                   
                 41 
                 0.637 
                 0.645 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.016 
                   
                 0.988 
               
               
                   
                 42 
                 0.645 
                 0.653 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.016 
                   
               
               
                   
                 43 
                 0.653 
                 0.661 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.016 
                   
                 0.989 
               
               
                   
                 44 
                 0.661 
                 0.669 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.016 
                   
               
               
                   
                 45 
                 0.669 
                 0.677 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.016 
                   
                 0.989 
               
               
                   
                 46 
                 0.677 
                 0.684 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.022 
                   
               
               
                   
                 47 
                 0.684 
                 0.692 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.022 
                   
                 0.990 
               
               
                   
                 48 
                 0.692 
                 0.699 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                   
                   
                   
               
               
                   
                 49 
                 0.699 
                 0.707 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.015 
                   
               
               
                   
                 50 
                 0.707 
                 0.714 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.015 
                   
                 0.991 
               
               
                   
                 51 
                 0.714 
                 0.721 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.015 
                   
               
               
                   
                 52 
                 0.721 
                 0.728 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.014 
                   
                 0.991 
               
               
                   
                 53 
                 0.728 
                 0.736 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.014 
                   
               
               
                   
                 54 
                 0.736 
                 0.743 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.014 
                   
                 0.991 
               
               
                   
                 55 
                 0.743 
                 0.750 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.014 
                   
               
               
                   
                 56 
                 0.750 
                 0.757 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.014 
                   
                 0.991 
               
               
                   
                 57 
                 0.757 
                 0.763 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.014 
                   
               
               
                   
                 58 
                 0.763 
                 0.770 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.014 
                   
                 0.992 
               
               
                   
                 59 
                 0.770 
                 0.777 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.014 
                   
               
               
                   
                 60 
                 0.777 
                 0.784 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.014 
                   
                 0.992 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 36B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.784 
                 0.791 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.013 
                   
               
               
                   
                 62 
                 0.791 
                 0.797 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.013 
                   
                 0.992 
               
               
                   
                 63 
                 0.797 
                 0.804 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.013 
                   
               
               
                   
                 64 
                 0.804 
                 0.810 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.013 
                   
                 0.992 
               
               
                   
                 65 
                 0.810 
                 0.817 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.013 
                   
               
               
                   
                 66 
                 0.817 
                 0.823 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.013 
                   
                 0.993 
               
               
                   
                 67 
                 0.823 
                 0.830 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.013 
                   
               
               
                   
                 68 
                 0.830 
                 0.836 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.013 
                   
                 0.993 
               
               
                   
                 69 
                 0.836 
                 0.842 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.013 
                   
               
               
                   
                 70 
                 0.842 
                 0.849 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.013 
                   
                 0.993 
               
               
                   
                 71 
                 0.849 
                 0.855 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 72 
                 0.855 
                 0.861 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.993 
               
               
                   
                 73 
                 0.861 
                 0.867 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 74 
                 0.867 
                 0.873 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.993 
               
               
                   
                 75 
                 0.873 
                 0.879 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 76 
                 0.879 
                 0.885 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.994 
               
               
                   
                 77 
                 0.885 
                 0.891 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 78 
                 0.891 
                 0.897 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.994 
               
               
                   
                 79 
                 0.897 
                 0.903 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 80 
                 0.903 
                 0.909 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.994 
               
               
                   
                 81 
                 0.909 
                 0.915 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.012 
                   
               
               
                   
                 82 
                 0.915 
                 0.921 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.012 
                   
                 0.994 
               
               
                   
                 83 
                 0.921 
                 0.927 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.018 
                   
               
               
                   
                 84 
                 0.927 
                 0.932 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                   
                   
               
               
                   
                 85 
                 0.932 
                 0.938 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.018 
                   
                 0.994 
               
               
                   
                 86 
                 0.938 
                 0.944 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 87 
                 0.944 
                 0.949 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.994 
               
               
                   
                 88 
                 0.949 
                 0.955 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 89 
                 0.955 
                 0.961 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.995 
               
               
                   
                 90 
                 0.961 
                 0.966 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 91 
                 0.966 
                 0.972 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.994 
               
               
                   
                 92 
                 0.972 
                 0.977 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 93 
                 0.977 
                 0.983 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.995 
               
               
                   
                 94 
                 0.983 
                 0.988 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.017 
                   
               
               
                   
                 95 
                 0.988 
                 0.994 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                   
                   
               
               
                   
                 96 
                 0.994 
                 0.999 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.017 
                   
                 0.995 
               
               
                   
                 97 
                 0.999 
                 1.005 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 98 
                 1.005 
                 1.010 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.995 
               
               
                   
                 99 
                 1.010 
                 1.015 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.011 
                   
               
               
                   
                 100 
                 1.015 
                 1.020 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.011 
                   
                 0.995 
               
               
                   
                 101 
                 1.020 
                 1.026 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.016 
                   
               
               
                   
                 102 
                 1.026 
                 1.031 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                   
                   
               
               
                   
                 103 
                 1.031 
                 1.036 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.016 
                   
                 0.995 
               
               
                   
                 104 
                 1.036 
                 1.041 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.010 
                   
               
               
                   
                 105 
                 1.041 
                 1.047 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.010 
                   
                 0.995 
               
               
                   
                 106 
                 1.047 
                 1.052 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.016 
                   
               
               
                   
                 107 
                 1.052 
                 1.057 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                   
                   
               
               
                   
                 108 
                 1.057 
                 1.062 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.016 
                   
                 0.995 
               
               
                   
                 109 
                 1.062 
                 1.067 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.010 
                   
               
               
                   
                 110 
                 1.067 
                 1.072 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.010 
                   
                 0.995 
               
               
                   
                 111 
                 1.072 
                 1.077 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                 0.015 
                   
               
               
                   
                 112 
                 1.077 
                 1.082 
                 2.73 
                   
                 1.37 
                   
                 1.06 
                   
                   
                   
                   
               
               
                   
                 113 
                 1.082 
                 1.085 
                   
                 1.17 
                   
                 0.59 
                   
                 0.45 
                 0.015 
                   
                 0.973 
               
               
                 Second Area 
                 114 
                 1.085 
                 1.088 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.006 
                   
               
               
                   
                 115 
                 1.088 
                 1.093 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.006 
                   
                 0.979 
               
               
                   
                 116 
                 1.093 
                 1.097 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.013 
                   
               
               
                   
                 117 
                 1.097 
                 1.101 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.013 
                   
                 0.995 
               
               
                   
                 118 
                 1.101 
                 1.106 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 119 
                 1.106 
                 1.110 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.009 
                   
               
               
                   
                 120 
                 1.110 
                 1.115 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.009 
                   
                 0.996 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 36C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.115 
                 1.119 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.013 
                   
               
               
                   
                 122 
                 1.119 
                 1.123 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.013 
                   
                 0.996 
               
               
                   
                 123 
                 1.123 
                 1.127 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 124 
                 1.127 
                 1.132 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.009 
                   
               
               
                   
                 125 
                 1.132 
                 1.136 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.009 
                   
                 0.996 
               
               
                   
                 126 
                 1.136 
                 1.140 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.012 
                   
               
               
                   
                 127 
                 1.140 
                 1.144 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.012 
                   
                 0.996 
               
               
                   
                 128 
                 1.144 
                 1.148 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 129 
                 1.148 
                 1.153 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 130 
                 1.153 
                 1.157 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.996 
               
               
                   
                 131 
                 1.157 
                 1.161 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.012 
                   
               
               
                   
                 132 
                 1.161 
                 1.165 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.012 
                   
                 0.997 
               
               
                   
                 133 
                 1.165 
                 1.169 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 134 
                 1.169 
                 1.173 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 135 
                 1.173 
                 1.177 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 136 
                 1.177 
                 1.181 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 137 
                 1.181 
                 1.185 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 138 
                 1.185 
                 1.190 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 139 
                 1.190 
                 1.194 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 140 
                 1.194 
                 1.198 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 141 
                 1.198 
                 1.202 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 142 
                 1.202 
                 1.206 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 144 
                 1.206 
                 1.210 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 145 
                 1.210 
                 1.214 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 146 
                 1.214 
                 1.218 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.997 
               
               
                   
                 147 
                 1.218 
                 1.222 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 148 
                 1.222 
                 1.226 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.998 
               
               
                   
                 149 
                 1.226 
                 1.230 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 150 
                 1.230 
                 1.234 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.998 
               
               
                   
                 151 
                 1.234 
                 1.238 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 152 
                 1.238 
                 1.242 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.998 
               
               
                   
                 153 
                 1.242 
                 1.246 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 154 
                 1.246 
                 1.250 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.998 
               
               
                   
                 155 
                 1.250 
                 1.254 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.012 
                   
               
               
                   
                 156 
                 1.254 
                 1.258 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                   
                   
               
               
                   
                 157 
                 1.258 
                 1.262 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.012 
                   
                 0.998 
               
               
                   
                 158 
                 1.262 
                 1.266 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.008 
                   
               
               
                   
                 159 
                 1.266 
                 1.270 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.008 
                   
                 0.998 
               
               
                   
                 160 
                 1.270 
                 1.274 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                 0.012 
                   
               
               
                   
                 161 
                 1.274 
                 1.278 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                   
                   
               
               
                   
                 162 
                 1.278 
                 1.282 
                   
                 1.39 
                   
                 0.70 
                   
                 0.61 
                 0.012 
                   
                 0.998 
               
               
                   
                 163 
                 1.282 
                 1.286 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                   
                   
               
               
                   
                 164 
                 1.286 
                 1.290 
                 2.52 
                   
                 1.26 
                   
                 1.09 
                   
                   
                   
                   
               
               
                 Third Area 
                 165 
                 1.290 
                 1.319 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 166 
                 1.319 
                 1.347 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 167 
                 1.347 
                 1.373 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 168 
                 1.373 
                 1.397 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 169 
                 1.397 
                 1.419 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 170 
                 1.419 
                 1.439 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 171 
                 1.439 
                 1.457 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 172 
                 1.457 
                 1.473 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 173 
                 1.473 
                 1.488 
                 4.00 
                   
                 2.00 
                   
                 0.93 
                   
                   
                   
                   
               
               
                   
                 174 
                 1.488 
                 1.500 
                 4.00 
                   
                 2.00 
                   
                 0.93 
               
               
                   
               
             
          
         
       
     
     Seventh Example 
     Hereafter, a seventh example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the seventh example are shown in Tables 37 to 41 and 42A to 42C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the seventh example are shown in  FIGS. 12A to 12C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 37 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 2.200 
                 2.478 
                 2.549 
               
               
                 NA 
                   
                 0.85 
                 0.60 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 38 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.396 
                 2.330 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.471 
               
               
                 1-3 
                 1.285 
               
               
                 2 
                 −3.805 
                 0.852 
                 0.850 
                 0.551 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 39 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 −11.400 
               
               
                   
               
             
             
               
                 A4 
                 1.58550E−02 
                 −8.08100E−03 
                 −2.83400E−02 
                 1.38100E−01 
               
               
                 A6 
                 3.61320E−03 
                  5.55850E−02 
                  2.14920E−02 
                 −1.17810E−01  
               
               
                 A8 
                 3.57000E−04 
                 −2.01700E−02 
                 −3.15020E−05 
                 6.90170E−02 
               
               
                 A10 
                 −1.95300E−05  
                  1.86930E−03 
                 −2.05800E−03 
                 −3.15570E−02  
               
               
                 A12 
                 −1.47730E−05  
                 −6.12830E−05 
                  1.54230E−03 
                 1.19050E−02 
               
               
                 A14 
                   
                   
                 −6.68900E−04 
                 −4.00170E−03  
               
               
                 A16 
                   
                   
                  1.56500E−04 
                 1.13430E−03 
               
               
                 A18 
                   
                   
                 −1.58740E−05 
                 −2.16810E−04  
               
               
                 A20 
                   
                   
                   
                 1.89670E−05 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 40 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 4.09880E+01 
                 2.60350E+01 
                 2.60000E+01 
               
               
                 P4 
                 −5.83500E+00  
                 −2.46600E+01  
                 −3.72670E+01  
               
               
                 P6 
                 6.59200E−01 
                 4.51070E+01 
                 1.61400E+01 
               
               
                 P8 
                 7.53000E−02 
                 −1.96000E+01  
                 −2.39000E+00  
               
               
                 P10 
                 −1.04500E−01  
                 2.17000E+00 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 41 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.17850E+01 
                 −4.20930E+01 
               
               
                   
                 P4 
                 −3.63600E+00 
                 −1.55950E+01 
               
               
                   
                 P6 
                  9.68100E−01 
                  3.11200E+01 
               
               
                   
                 P8 
                 −3.46500E−01 
                 −1.44070E+01 
               
               
                   
                 P10 
                 −3.65500E−02 
                  1.75700E+00 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 42A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.089 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.089 
                 0.146 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 2 
                 0.146 
                 0.186 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.098 
                   
               
               
                   
                 3 
                 0.186 
                 0.219 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.073 
                   
                 0.750 
               
               
                   
                 4 
                 0.219 
                 0.249 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.062 
                   
               
               
                   
                 5 
                 0.249 
                 0.275 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.056 
                   
                 0.896 
               
               
                   
                 6 
                 0.275 
                 0.299 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.050 
                   
               
               
                   
                 7 
                 0.299 
                 0.321 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.046 
                   
                 0.911 
               
               
                   
                 8 
                 0.321 
                 0.342 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.064 
                   
               
               
                   
                 9 
                 0.342 
                 0.363 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.060 
                   
                 0.945 
               
               
                   
                 10 
                 0.363 
                 0.381 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 11 
                 0.381 
                 0.399 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.036 
                   
               
               
                   
                 12 
                 0.399 
                 0.416 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.035 
                   
                 0.956 
               
               
                   
                 13 
                 0.416 
                 0.432 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.033 
                   
               
               
                   
                 14 
                 0.432 
                 0.448 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.032 
                   
                 0.967 
               
               
                   
                 15 
                 0.448 
                 0.463 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.031 
                   
               
               
                   
                 16 
                 0.463 
                 0.478 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.030 
                   
                 0.966 
               
               
                   
                 17 
                 0.478 
                 0.492 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.029 
                   
               
               
                   
                 18 
                 0.492 
                 0.506 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.028 
                   
                 0.971 
               
               
                   
                 19 
                 0.506 
                 0.519 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.027 
                   
               
               
                   
                 20 
                 0.519 
                 0.533 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.027 
                   
                 0.979 
               
               
                   
                 21 
                 0.533 
                 0.546 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.040 
                   
               
               
                   
                 22 
                 0.546 
                 0.559 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.039 
                   
                 0.975 
               
               
                   
                 23 
                 0.559 
                 0.572 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                   
                   
                   
               
               
                   
                 24 
                 0.572 
                 0.584 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.024 
                   
               
               
                   
                 25 
                 0.584 
                 0.596 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.024 
                   
                 0.985 
               
               
                   
                 26 
                 0.596 
                 0.607 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.023 
                   
               
               
                   
                 27 
                 0.607 
                 0.619 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.023 
                   
                 0.985 
               
               
                   
                 28 
                 0.619 
                 0.630 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.023 
                   
               
               
                   
                 29 
                 0.630 
                 0.641 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.022 
                   
                 0.983 
               
               
                   
                 30 
                 0.641 
                 0.652 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.022 
                   
               
               
                   
                 31 
                 0.652 
                 0.663 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.022 
                   
                 0.982 
               
               
                   
                 32 
                 0.663 
                 0.673 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.021 
                   
               
               
                   
                 33 
                 0.673 
                 0.684 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.021 
                   
                 0.983 
               
               
                   
                 34 
                 0.684 
                 0.694 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.021 
                   
               
               
                   
                 35 
                 0.694 
                 0.704 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.020 
                   
                 0.986 
               
               
                   
                 36 
                 0.704 
                 0.714 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.020 
                   
               
               
                   
                 37 
                 0.714 
                 0.724 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.020 
                   
                 0.987 
               
               
                   
                 38 
                 0.724 
                 0.734 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.020 
                   
               
               
                   
                 39 
                 0.734 
                 0.743 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 0.989 
               
               
                   
                 40 
                 0.743 
                 0.753 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.019 
                   
               
               
                   
                 41 
                 0.753 
                 0.762 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 0.989 
               
               
                   
                 42 
                 0.762 
                 0.771 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.019 
                   
               
               
                   
                 43 
                 0.771 
                 0.781 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 0.990 
               
               
                   
                 44 
                 0.781 
                 0.790 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.018 
                   
               
               
                   
                 45 
                 0.790 
                 0.799 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.018 
                   
                 0.990 
               
               
                   
                 46 
                 0.799 
                 0.808 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.018 
                   
               
               
                   
                 47 
                 0.808 
                 0.816 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.018 
                   
                 0.990 
               
               
                   
                 48 
                 0.816 
                 0.825 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.018 
                   
               
               
                   
                 49 
                 0.825 
                 0.834 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.017 
                   
                 0.989 
               
               
                   
                 50 
                 0.834 
                 0.842 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.017 
                   
               
               
                   
                 51 
                 0.842 
                 0.851 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.017 
                   
                 0.989 
               
               
                   
                 52 
                 0.851 
                 0.859 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.017 
                   
               
               
                   
                 53 
                 0.859 
                 0.868 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.017 
                   
                 0.990 
               
               
                   
                 54 
                 0.868 
                 0.876 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.017 
                   
               
               
                   
                 55 
                 0.876 
                 0.884 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.016 
                   
                 0.992 
               
               
                   
                 56 
                 0.884 
                 0.892 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.024 
                   
               
               
                   
                 57 
                 0.892 
                 0.900 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 58 
                 0.900 
                 0.908 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.024 
                   
                 0.993 
               
               
                   
                 59 
                 0.908 
                 0.916 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.016 
                   
               
               
                   
                 60 
                 0.916 
                 0.924 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.016 
                   
                 0.992 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 42B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.924 
                 0.931 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.016 
                   
               
               
                   
                 62 
                 0.931 
                 0.939 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.016 
                   
                 0.993 
               
               
                   
                 63 
                 0.939 
                 0.947 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.015 
                   
               
               
                   
                 64 
                 0.947 
                 0.955 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.015 
                   
                 0.993 
               
               
                   
                 65 
                 0.955 
                 0.962 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.015 
                   
               
               
                   
                 66 
                 0.962 
                 0.970 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.015 
                   
                 0.992 
               
               
                   
                 67 
                 0.970 
                 0.977 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.015 
                   
               
               
                   
                 68 
                 0.977 
                 0.985 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.015 
                   
                 0.992 
               
               
                   
                 69 
                 0.985 
                 0.991 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.022 
                   
               
               
                   
                 70 
                 0.991 
                 0.999 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 71 
                 0.999 
                 1.006 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.022 
                   
                 0.989 
               
               
                   
                 72 
                 1.006 
                 1.013 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.014 
                   
               
               
                   
                 73 
                 1.013 
                 1.021 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.014 
                   
                 1.002 
               
               
                   
                 74 
                 1.021 
                 1.028 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.014 
                   
               
               
                   
                 75 
                 1.028 
                 1.035 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.014 
                   
                 0.995 
               
               
                   
                 76 
                 1.035 
                 1.042 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.014 
                   
               
               
                   
                 77 
                 1.042 
                 1.049 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.014 
                   
                 0.996 
               
               
                   
                 78 
                 1.049 
                 1.056 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.014 
                   
               
               
                   
                 79 
                 1.056 
                 1.063 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.014 
                   
                 0.991 
               
               
                   
                 80 
                 1.063 
                 1.069 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.020 
                   
               
               
                   
                 81 
                 1.069 
                 1.076 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 82 
                 1.076 
                 1.083 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.020 
                   
                 0.996 
               
               
                   
                 83 
                 1.083 
                 1.090 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.014 
                   
               
               
                   
                 84 
                 1.090 
                 1.097 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.014 
                   
                 0.992 
               
               
                   
                 85 
                 1.097 
                 1.103 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.013 
                   
               
               
                   
                 86 
                 1.103 
                 1.110 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.013 
                   
                 0.996 
               
               
                   
                 87 
                 1.110 
                 1.116 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.019 
                   
               
               
                   
                 88 
                 1.116 
                 1.123 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 89 
                 1.123 
                 1.129 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 0.995 
               
               
                   
                 90 
                 1.129 
                 1.136 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.013 
                   
               
               
                   
                 91 
                 1.136 
                 1.142 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.013 
                   
                 0.994 
               
               
                   
                 92 
                 1.142 
                 1.148 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.019 
                   
               
               
                   
                 93 
                 1.148 
                 1.155 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 94 
                 1.155 
                 1.161 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 0.995 
               
               
                   
                 95 
                 1.161 
                 1.168 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.013 
                   
               
               
                   
                 96 
                 1.168 
                 1.174 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.013 
                   
                 0.999 
               
               
                   
                 97 
                 1.174 
                 1.180 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                 0.019 
                   
               
               
                   
                 98 
                 1.180 
                 1.186 
                 2.36 
                   
                 1.18 
                   
                 0.85 
                   
                   
                   
                   
               
               
                   
                 99 
                 1.186 
                 1.194 
                   
                 1.69 
                   
                 0.85 
                   
                 0.61 
                 0.019 
                   
                 1.019 
               
               
                 Second Area 
                 100 
                 1.194 
                 1.200 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 101 
                 1.200 
                 1.206 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.031 
                   
               
               
                   
                 102 
                 1.206 
                 1.212 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 103 
                 1.212 
                 1.217 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.029 
                   
                 0.965 
               
               
                   
                 104 
                 1.217 
                 1.222 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 105 
                 1.222 
                 1.228 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.011 
                   
               
               
                   
                 106 
                 1.228 
                 1.234 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.011 
                   
                 0.995 
               
               
                   
                 107 
                 1.234 
                 1.239 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.016 
                   
               
               
                   
                 108 
                 1.239 
                 1.244 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.016 
                   
                 0.995 
               
               
                   
                 109 
                 1.244 
                 1.249 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 110 
                 1.249 
                 1.255 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.011 
                   
               
               
                   
                 111 
                 1.255 
                 1.260 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.011 
                   
                 0.995 
               
               
                   
                 112 
                 1.260 
                 1.266 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.015 
                   
               
               
                   
                 113 
                 1.266 
                 1.270 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.015 
                   
                 0.995 
               
               
                   
                 114 
                 1.270 
                 1.275 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 115 
                 1.275 
                 1.281 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.011 
                   
               
               
                   
                 116 
                 1.281 
                 1.286 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.011 
                   
                 0.995 
               
               
                   
                 117 
                 1.286 
                 1.292 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.011 
                   
               
               
                   
                 118 
                 1.292 
                 1.297 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.011 
                   
                 0.995 
               
               
                   
                 119 
                 1.297 
                 1.302 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.011 
                   
               
               
                   
                 120 
                 1.302 
                 1.307 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.011 
                   
                 0.996 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 42C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.307 
                 1.313 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
                   
               
               
                   
                 122 
                 1.313 
                 1.318 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.010 
                   
                 0.996 
               
               
                   
                 123 
                 1.318 
                 1.323 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
                   
               
               
                   
                 124 
                 1.323 
                 1.328 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.010 
                   
                 0.996 
               
               
                   
                 125 
                 1.328 
                 1.333 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
                   
               
               
                   
                 126 
                 1.333 
                 1.338 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.010 
                   
                 0.996 
               
               
                   
                 127 
                 1.338 
                 1.343 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
                   
               
               
                   
                 128 
                 1.343 
                 1.349 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.010 
                   
                 0.996 
               
               
                   
                 129 
                 1.349 
                 1.354 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
                   
               
               
                   
                 130 
                 1.354 
                 1.359 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.010 
                   
                 0.996 
               
               
                   
                 131 
                 1.359 
                 1.365 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 132 
                 1.365 
                 1.370 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.016 
                   
               
               
                   
                 133 
                 1.370 
                 1.375 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.016 
                   
                 0.996 
               
               
                   
                 134 
                 1.375 
                 1.380 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 135 
                 1.380 
                 1.385 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.016 
                   
               
               
                   
                 136 
                 1.385 
                 1.390 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.016 
                   
                 0.996 
               
               
                   
                 137 
                 1.390 
                 1.396 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 138 
                 1.396 
                 1.401 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.016 
                   
               
               
                   
                 139 
                 1.401 
                 1.406 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.016 
                   
                 0.997 
               
               
                   
                 140 
                 1.406 
                 1.412 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.021 
                   
               
               
                   
                 141 
                 1.412 
                 1.417 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 142 
                 1.417 
                 1.422 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 144 
                 1.422 
                 1.427 
                   
                 1.32 
                   
                 0.66 
                   
                 0.52 
                 0.021 
                   
                 0.997 
               
               
                   
                 145 
                 1.427 
                 1.433 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 146 
                 1.433 
                 1.438 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 147 
                 1.438 
                 1.444 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 148 
                 1.444 
                 1.449 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 149 
                 1.449 
                 1.455 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 150 
                 1.455 
                 1.461 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 151 
                 1.461 
                 1.466 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 152 
                 1.466 
                 1.472 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 153 
                 1.472 
                 1.477 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                   
                 154 
                 1.477 
                 1.480 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                   
                   
               
               
                 Third Area 
                 155 
                 1.480 
                 1.496 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 156 
                 1.496 
                 1.553 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 157 
                 1.553 
                 1.598 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 158 
                 1.598 
                 1.634 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 159 
                 1.634 
                 1.662 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 160 
                 1.662 
                 1.685 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 161 
                 1.685 
                 1.704 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 162 
                 1.704 
                 1.721 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 163 
                 1.721 
                 1.736 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 164 
                 1.736 
                 1.749 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 165 
                 1.749 
                 1.761 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 166 
                 1.761 
                 1.773 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 167 
                 1.773 
                 1.783 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 168 
                 1.783 
                 1.792 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 169 
                 1.792 
                 1.801 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 170 
                 1.801 
                 1.809 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 171 
                 1.809 
                 1.817 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 172 
                 1.817 
                 1.824 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 173 
                 1.824 
                 1.831 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 174 
                 1.831 
                 1.838 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 175 
                 1.838 
                 1.844 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 176 
                 1.844 
                 1.850 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 177 
                 1.850 
                 1.856 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 178 
                 1.856 
                 1.862 
                 4.00 
                   
                 2.00 
                   
                 0.83 
                   
                   
                   
                   
               
               
                   
                 179 
                 1.862 
                 1.870 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
               
             
          
         
       
     
     Eighth Example 
     Hereafter, an eighth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the eighth example are shown in Tables 43 to 47 and 48A to 48E. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the eighth example are shown in  FIGS. 13A to 13C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 43 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.411 
                 1.725 
                 1.816 
               
               
                 NA 
                   
                 0.85 
                 0.62 
                 0.50 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 44 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 0.892 
                 1.620 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.091 
               
               
                 1-3 
                 0.846 
               
               
                 2 
                 −1.995 
                 0.472 
                 0.561 
                 0.300 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 45 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 2.530 
               
               
                   
               
             
             
               
                 A4 
                 1.06300E−02 
                 2.37900E−02 
                 −8.10650E−02 
                 8.79500E−01 
               
               
                 A6 
                 1.16300E−01 
                 4.64850E−01 
                  1.78440E−01 
                 −1.68920E+00  
               
               
                 A8 
                 −5.38300E−02  
                 −3.86200E−01  
                 −8.42660E−02 
                 2.44100E+00 
               
               
                 A10 
                 1.86360E−02 
                 9.25250E−02 
                  1.37550E−01 
                 −2.33130E+00  
               
               
                 A12 
                 9.35300E−04 
                 1.95180E−03 
                 −1.74190E−01 
                 1.17130E+00 
               
               
                 A14 
                   
                   
                  1.14750E−01 
                 2.75770E−01 
               
               
                 A16 
                   
                   
                 −3.17440E−02 
                 −7.30160E−01  
               
               
                 A18 
                   
                   
                   
                 3.05960E−01 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 46 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 1.31760E+02 
                 4.80410E+01 
                 3.59910E+01 
               
               
                 P4 
                 −7.22670E+01  
                 −5.06860E+01  
                 −1.18000E+02  
               
               
                 P6 
                 9.40900E+01 
                 3.81670E+02 
                 1.19250E+02 
               
               
                 P8 
                 −5.88100E+01  
                 −3.67390E+02  
                 −4.22000E+01  
               
               
                 P10 
                 1.75610E+01 
                 1.02040E+02 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 47 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −1.01940E+02 
                 −1.59650E+02 
               
               
                   
                 P4 
                 −2.93900E+01 
                 −2.77000E+00 
               
               
                   
                 P6 
                  5.05270E+01 
                  2.41900E+02 
               
               
                   
                 P8 
                 −5.20050E+01 
                 −2.85380E+02 
               
               
                   
                 P10 
                  1.32420E+01 
                  8.70170E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 48A 
               
             
             
               
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.049 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.049 
                 0.081 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 2 
                 0.081 
                 0.103 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.054 
                   
               
               
                   
                 3 
                 0.103 
                 0.123 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.042 
                   
                 0.777 
               
               
                   
                 4 
                 0.123 
                 0.139 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.036 
                   
               
               
                   
                 5 
                 0.139 
                 0.154 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.031 
                   
                 0.864 
               
               
                   
                 6 
                 0.154 
                 0.167 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.028 
                   
               
               
                   
                 7 
                 0.167 
                 0.180 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.026 
                   
                 0.926 
               
               
                   
                 8 
                 0.180 
                 0.192 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.035 
                   
               
               
                   
                 9 
                 0.192 
                 0.202 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.033 
                   
                 0.939 
               
               
                   
                 10 
                 0.202 
                 0.213 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 11 
                 0.213 
                 0.223 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.021 
                   
               
               
                   
                 12 
                 0.223 
                 0.232 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.020 
                   
                 0.952 
               
               
                   
                 13 
                 0.232 
                 0.241 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.019 
                   
               
               
                   
                 14 
                 0.241 
                 0.250 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.018 
                   
                 0.957 
               
               
                   
                 15 
                 0.250 
                 0.259 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.018 
                   
               
               
                   
                 16 
                 0.259 
                 0.267 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.017 
                   
                 0.970 
               
               
                   
                 17 
                 0.267 
                 0.275 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.016 
                   
               
               
                   
                 18 
                 0.275 
                 0.283 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.016 
                   
                 0.975 
               
               
                   
                 19 
                 0.283 
                 0.291 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.016 
                   
               
               
                   
                 20 
                 0.291 
                 0.298 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.015 
                   
                 0.974 
               
               
                   
                 21 
                 0.298 
                 0.306 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.022 
                   
               
               
                   
                 22 
                 0.306 
                 0.313 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.021 
                   
                 0.977 
               
               
                   
                 23 
                 0.313 
                 0.320 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                   
                   
                   
               
               
                   
                 24 
                 0.320 
                 0.326 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.014 
                   
               
               
                   
                 25 
                 0.326 
                 0.333 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.014 
                   
                 0.981 
               
               
                   
                 26 
                 0.333 
                 0.340 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.013 
                   
               
               
                   
                 27 
                 0.340 
                 0.346 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.013 
                   
                 0.979 
               
               
                   
                 28 
                 0.346 
                 0.353 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.013 
                   
               
               
                   
                 29 
                 0.353 
                 0.359 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.013 
                   
                 0.980 
               
               
                   
                 30 
                 0.359 
                 0.365 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.012 
                   
               
               
                   
                 31 
                 0.365 
                 0.371 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.012 
                   
                 0.983 
               
               
                   
                 32 
                 0.371 
                 0.377 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.012 
                   
               
               
                   
                 33 
                 0.377 
                 0.383 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.012 
                   
                 0.986 
               
               
                   
                 34 
                 0.383 
                 0.389 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.012 
                   
               
               
                   
                 35 
                 0.389 
                 0.395 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.012 
                   
                 0.988 
               
               
                   
                 36 
                 0.395 
                 0.400 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.011 
                   
               
               
                   
                 37 
                 0.400 
                 0.406 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.011 
                   
                 0.988 
               
               
                   
                 38 
                 0.406 
                 0.411 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.011 
                   
               
               
                   
                 39 
                 0.411 
                 0.417 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.011 
                   
                 0.987 
               
               
                   
                 40 
                 0.417 
                 0.422 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.011 
                   
               
               
                   
                 41 
                 0.422 
                 0.427 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.011 
                   
                 0.986 
               
               
                   
                 42 
                 0.427 
                 0.433 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.011 
                   
               
               
                   
                 43 
                 0.433 
                 0.438 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 0.986 
               
               
                   
                 44 
                 0.438 
                 0.443 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
                   
               
               
                   
                 45 
                 0.443 
                 0.448 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 0.987 
               
               
                   
                 46 
                 0.448 
                 0.453 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
                   
               
               
                   
                 47 
                 0.453 
                 0.458 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 0.988 
               
               
                   
                 48 
                 0.458 
                 0.463 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
                   
               
               
                   
                 49 
                 0.463 
                 0.468 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 0.990 
               
               
                   
                 50 
                 0.468 
                 0.473 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
                   
               
               
                   
                 51 
                 0.473 
                 0.477 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 0.992 
               
               
                   
                 52 
                 0.477 
                 0.482 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
                   
               
               
                   
                 53 
                 0.482 
                 0.487 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.993 
               
               
                   
                 54 
                 0.487 
                 0.491 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
                   
               
               
                   
                 55 
                 0.491 
                 0.496 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.993 
               
               
                   
                 56 
                 0.496 
                 0.501 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
                   
               
               
                   
                 57 
                 0.501 
                 0.505 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.992 
               
               
                   
                 58 
                 0.505 
                 0.510 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
                   
               
               
                   
                 59 
                 0.510 
                 0.514 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.992 
               
               
                   
                 60 
                 0.514 
                 0.518 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 48B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.518 
                 0.523 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.991 
               
               
                   
                 62 
                 0.523 
                 0.527 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
               
               
                   
                 63 
                 0.527 
                 0.531 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.990 
               
               
                   
                 64 
                 0.531 
                 0.536 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
               
               
                   
                 65 
                 0.536 
                 0.540 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.991 
               
               
                   
                 66 
                 0.540 
                 0.544 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 67 
                 0.544 
                 0.548 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.991 
               
               
                   
                 68 
                 0.548 
                 0.552 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 69 
                 0.552 
                 0.557 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.992 
               
               
                   
                 70 
                 0.557 
                 0.561 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 71 
                 0.561 
                 0.565 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.993 
               
               
                   
                 72 
                 0.565 
                 0.569 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 73 
                 0.569 
                 0.573 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.994 
               
               
                   
                 74 
                 0.573 
                 0.577 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 75 
                 0.577 
                 0.581 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.995 
               
               
                   
                 76 
                 0.581 
                 0.585 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 77 
                 0.585 
                 0.588 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.995 
               
               
                   
                 78 
                 0.588 
                 0.592 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 79 
                 0.592 
                 0.596 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.994 
               
               
                   
                 80 
                 0.596 
                 0.600 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 81 
                 0.600 
                 0.604 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.993 
               
               
                   
                 82 
                 0.604 
                 0.608 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 83 
                 0.608 
                 0.611 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.993 
               
               
                   
                 84 
                 0.611 
                 0.615 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 85 
                 0.615 
                 0.619 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.992 
               
               
                   
                 86 
                 0.619 
                 0.622 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 87 
                 0.622 
                 0.626 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.993 
               
               
                   
                 88 
                 0.626 
                 0.630 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 89 
                 0.630 
                 0.633 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.993 
               
               
                   
                 90 
                 0.633 
                 0.637 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 91 
                 0.637 
                 0.640 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.994 
               
               
                   
                 92 
                 0.640 
                 0.644 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 93 
                 0.644 
                 0.648 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.995 
               
               
                   
                 94 
                 0.648 
                 0.651 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 95 
                 0.651 
                 0.655 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.995 
               
               
                   
                 96 
                 0.655 
                 0.658 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 97 
                 0.658 
                 0.661 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.996 
               
               
                   
                 98 
                 0.661 
                 0.665 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 99 
                 0.665 
                 0.668 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.995 
               
               
                   
                 100 
                 0.668 
                 0.672 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
               
               
                   
                 101 
                 0.672 
                 0.675 
                 2.52 
                   
                 1.26 
                   
                 0.91 
               
               
                   
                 102 
                 0.675 
                 0.679 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.010 
                   
                 1.009 
               
               
                   
                 103 
                 0.679 
                 0.682 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 104 
                 0.682 
                 0.685 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.971 
               
               
                   
                 105 
                 0.685 
                 0.688 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 106 
                 0.688 
                 0.692 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.996 
               
               
                   
                 107 
                 0.692 
                 0.695 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 108 
                 0.695 
                 0.698 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.995 
               
               
                   
                 109 
                 0.698 
                 0.701 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 110 
                 0.701 
                 0.705 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 111 
                 0.705 
                 0.708 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 112 
                 0.708 
                 0.711 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 113 
                 0.711 
                 0.714 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 114 
                 0.714 
                 0.717 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 115 
                 0.717 
                 0.720 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 116 
                 0.720 
                 0.724 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.995 
               
               
                   
                 117 
                 0.724 
                 0.727 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 118 
                 0.727 
                 0.730 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.996 
               
               
                   
                 119 
                 0.730 
                 0.733 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 120 
                 0.733 
                 0.736 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.996 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 48C 
               
               
                   
               
             
             
               
                 First Area 
                 121 
                 0.736 
                 0.739 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
                   
               
               
                   
                 122 
                 0.739 
                 0.742 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.995 
               
               
                   
                 123 
                 0.742 
                 0.745 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 124 
                 0.745 
                 0.748 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 125 
                 0.748 
                 0.751 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.009 
               
               
                   
                 126 
                 0.751 
                 0.754 
                 2.52 
                   
                 1.26 
                   
                 0.91 
               
               
                   
                 127 
                 0.754 
                 0.757 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.009 
                   
                 0.995 
               
               
                   
                 128 
                 0.757 
                 0.760 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 129 
                 0.760 
                 0.763 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.996 
               
               
                   
                 130 
                 0.763 
                 0.766 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 131 
                 0.766 
                 0.768 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.995 
               
               
                   
                 132 
                 0.768 
                 0.771 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 133 
                 0.771 
                 0.774 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 134 
                 0.774 
                 0.777 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 135 
                 0.777 
                 0.780 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.994 
               
               
                   
                 136 
                 0.780 
                 0.783 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 137 
                 0.783 
                 0.785 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.995 
               
               
                   
                 138 
                 0.785 
                 0.788 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 139 
                 0.788 
                 0.791 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.996 
               
               
                   
                 140 
                 0.791 
                 0.794 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.006 
               
               
                   
                 141 
                 0.794 
                 0.797 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.006 
                   
                 0.996 
               
               
                   
                 142 
                 0.797 
                 0.799 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 143 
                 0.799 
                 0.802 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.995 
               
               
                   
                 144 
                 0.802 
                 0.805 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 145 
                 0.805 
                 0.807 
                 2.52 
                   
                 1.26 
                   
                 0.91 
               
               
                   
                 146 
                 0.807 
                 0.810 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.995 
               
               
                   
                 147 
                 0.810 
                 0.813 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 148 
                 0.813 
                 0.815 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.996 
               
               
                   
                 149 
                 0.815 
                 0.818 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 150 
                 0.818 
                 0.821 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.994 
               
               
                   
                 151 
                 0.821 
                 0.823 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 152 
                 0.823 
                 0.826 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.994 
               
               
                   
                 153 
                 0.826 
                 0.829 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 154 
                 0.829 
                 0.831 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.995 
               
               
                   
                 155 
                 0.831 
                 0.834 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 156 
                 0.834 
                 0.836 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.997 
               
               
                   
                 157 
                 0.836 
                 0.839 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 158 
                 0.839 
                 0.841 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.996 
               
               
                   
                 159 
                 0.841 
                 0.844 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.008 
               
               
                   
                 160 
                 0.844 
                 0.847 
                 2.52 
                   
                 1.26 
                   
                 0.91 
               
               
                   
                 161 
                 0.847 
                 0.849 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.008 
                   
                 0.995 
               
               
                   
                 162 
                 0.849 
                 0.851 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 163 
                 0.851 
                 0.854 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.996 
               
               
                   
                 164 
                 0.854 
                 0.856 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 165 
                 0.856 
                 0.859 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.994 
               
               
                   
                 166 
                 0.859 
                 0.861 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 167 
                 0.861 
                 0.864 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.995 
               
               
                   
                 168 
                 0.864 
                 0.866 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 169 
                 0.866 
                 0.869 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.997 
               
               
                   
                 170 
                 0.869 
                 0.871 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 171 
                 0.871 
                 0.873 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.997 
               
               
                   
                 172 
                 0.873 
                 0.876 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 173 
                 0.876 
                 0.878 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.993 
               
               
                   
                 174 
                 0.878 
                 0.881 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.007 
               
               
                   
                 175 
                 0.881 
                 0.883 
                 2.52 
                   
                 1.26 
                   
                 0.91 
               
               
                   
                 176 
                 0.883 
                 0.885 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.007 
                   
                 0.996 
               
               
                   
                 177 
                 0.885 
                 0.888 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 178 
                 0.888 
                 0.890 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.994 
               
               
                   
                 179 
                 0.890 
                 0.892 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 180 
                 0.892 
                 0.895 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.999 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 48D 
               
               
                   
               
             
             
               
                 First Area 
                 181 
                 0.895 
                 0.897 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
                   
               
               
                   
                 182 
                 0.897 
                 0.899 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 0.992 
               
               
                   
                 183 
                 0.899 
                 0.901 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.005 
               
               
                   
                 184 
                 0.901 
                 0.904 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.005 
                   
                 1.001 
               
               
                   
                 185 
                 0.904 
                 0.906 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.004 
               
               
                   
                 186 
                 0.906 
                 0.908 
                   
                 1.43 
                   
                 0.72 
                   
                 0.52 
                 0.004 
                   
                 0.993 
               
               
                   
                 187 
                 0.908 
                 0.910 
                 2.52 
                   
                 1.26 
                   
                 0.91 
                   
                   
                 0.010 
               
               
                 Second Area 
                 188 
                 0.910 
                 0.911 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 189 
                 0.911 
                 0.913 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 190 
                 0.913 
                 0.916 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.010 
                   
                 0.981 
               
               
                   
                 191 
                 0.916 
                 0.918 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
               
               
                   
                 192 
                 0.918 
                 0.920 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 193 
                 0.920 
                 0.922 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 194 
                 0.922 
                 0.924 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 195 
                 0.924 
                 0.926 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 196 
                 0.926 
                 0.928 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.006 
               
               
                   
                 197 
                 0.928 
                 0.930 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.006 
                   
                 0.997 
               
               
                   
                 198 
                 0.930 
                 0.932 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
               
               
                   
                 199 
                 0.932 
                 0.934 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 200 
                 0.934 
                 0.936 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 201 
                 0.936 
                 0.938 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 202 
                 0.938 
                 0.940 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 203 
                 0.940 
                 0.942 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 204 
                 0.942 
                 0.944 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.963 
               
               
                   
                 205 
                 0.944 
                 0.946 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.006 
               
               
                   
                 206 
                 0.946 
                 0.948 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.006 
                   
                 1.019 
               
               
                   
                 207 
                 0.948 
                 0.949 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
               
               
                   
                 208 
                 0.949 
                 0.951 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 209 
                 0.951 
                 0.953 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 210 
                 0.953 
                 0.955 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 211 
                 0.955 
                 0.957 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 212 
                 0.957 
                 0.959 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 213 
                 0.959 
                 0.961 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 214 
                 0.961 
                 0.963 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 215 
                 0.963 
                 0.965 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 216 
                 0.965 
                 0.967 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 217 
                 0.967 
                 0.969 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 218 
                 0.969 
                 0.970 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 219 
                 0.970 
                 0.972 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 220 
                 0.972 
                 0.974 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 221 
                 0.974 
                 0.976 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.994 
               
               
                   
                 222 
                 0.976 
                 0.978 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 223 
                 0.978 
                 0.980 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 1.012 
               
               
                   
                 224 
                 0.980 
                 0.982 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 225 
                 0.982 
                 0.984 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.973 
               
               
                   
                 226 
                 0.984 
                 0.986 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 227 
                 0.986 
                 0.987 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.974 
               
               
                   
                 228 
                 0.987 
                 0.989 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 229 
                 0.989 
                 0.991 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 1.044 
               
               
                   
                 230 
                 0.991 
                 0.993 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 231 
                 0.993 
                 0.994 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.989 
               
               
                   
                 232 
                 0.994 
                 0.996 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 233 
                 0.996 
                 0.998 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 234 
                 0.998 
                 1.000 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 235 
                 1.000 
                 1.002 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 236 
                 1.002 
                 1.003 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 237 
                 1.003 
                 1.005 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.997 
               
               
                   
                 238 
                 1.005 
                 1.007 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 239 
                 1.007 
                 1.009 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.998 
               
               
                   
                 240 
                 1.009 
                 1.011 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 48E 
               
               
                   
               
             
             
               
                 Second Area 
                 241 
                 1.011 
                 1.012 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.998 
               
               
                   
                 242 
                 1.012 
                 1.014 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.004 
               
               
                   
                 243 
                 1.014 
                 1.016 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.004 
                   
                 0.998 
               
               
                   
                 244 
                 1.016 
                 1.018 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 245 
                 1.018 
                 1.020 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 246 
                 1.020 
                 1.021 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 0.984 
               
               
                   
                 247 
                 1.021 
                 1.023 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 248 
                 1.023 
                 1.025 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 1.019 
               
               
                   
                 249 
                 1.025 
                 1.026 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 250 
                 1.026 
                 1.028 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 0.998 
               
               
                   
                 251 
                 1.028 
                 1.030 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 252 
                 1.030 
                 1.032 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 0.998 
               
               
                   
                 253 
                 1.032 
                 1.033 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 254 
                 1.033 
                 1.035 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 255 
                 1.035 
                 1.037 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 0.997 
               
               
                   
                 256 
                 1.037 
                 1.038 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 257 
                 1.038 
                 1.040 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 0.998 
               
               
                   
                 258 
                 1.040 
                 1.042 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 259 
                 1.042 
                 1.044 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 260 
                 1.044 
                 1.045 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 1.005 
               
               
                   
                 261 
                 1.045 
                 1.047 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 262 
                 1.047 
                 1.049 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 0.986 
               
               
                   
                 263 
                 1.049 
                 1.050 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 264 
                 1.050 
                 1.052 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 265 
                 1.052 
                 1.054 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 0.992 
               
               
                   
                 266 
                 1.054 
                 1.055 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 267 
                 1.055 
                 1.057 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 1.007 
               
               
                   
                 268 
                 1.057 
                 1.059 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 269 
                 1.059 
                 1.060 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 270 
                 1.060 
                 1.062 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 0.998 
               
               
                   
                 271 
                 1.062 
                 1.064 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.003 
               
               
                   
                 272 
                 1.064 
                 1.065 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.003 
                   
                 0.998 
               
               
                   
                 273 
                 1.065 
                 1.067 
                 2.41 
                   
                 1.21 
                   
                 1.01 
                   
                   
                 0.005 
               
               
                   
                 274 
                 1.067 
                 1.069 
                 2.41 
                   
                 1.21 
                   
                 1.01 
               
               
                   
                 275 
                 1.069 
                 1.070 
                   
                 1.59 
                   
                 0.79 
                   
                 0.68 
                 0.005 
                   
                 0.957 
               
               
                 Third Area 
                 277 
                 1.070 
                 1.082 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 278 
                 1.082 
                 1.102 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 279 
                 1.102 
                 1.118 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 280 
                 1.118 
                 1.132 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 281 
                 1.132 
                 1.144 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 282 
                 1.144 
                 1.155 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 283 
                 1.155 
                 1.164 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 284 
                 1.164 
                 1.173 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 285 
                 1.173 
                 1.181 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 286 
                 1.181 
                 1.188 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 287 
                 1.188 
                 1.195 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 288 
                 1.195 
                 1.200 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
               
             
          
         
       
     
     Ninth Example 
     Hereafter, a ninth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the ninth example are shown in Tables 49 to 53 and 54A to 54C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the ninth example are shown in  FIGS. 14A to 14C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 49 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.766 
                 1.990 
                 2.053 
               
               
                 NA 
                   
                 0.85 
                 0.63 
                 0.50 
               
               
                 Magnification 
                   
                 0.00 
                 −0.02 
                 −0.02 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 50 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.108 
                 1.880 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.102 
               
               
                 1-3 
                 1.025 
               
               
                 2 
                 −2.937 
                 0.674 
                 0.653 
                 0.300 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 51 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.200 
               
               
                   
               
             
             
               
                 A4 
                 2.83360E−02 
                 −1.51150E−01  
                 −5.93860E−02 
                  3.61590E−01 
               
               
                 A6 
                 1.30700E−02 
                 2.91900E−01 
                  7.13160E−02 
                 −5.82660E−01 
               
               
                 A8 
                 −1.06700E−03  
                 −1.31750E−01  
                 −2.57600E−02 
                  9.37290E−01 
               
               
                 A10 
                 −1.56400E−04  
                 1.50760E−02 
                  2.85390E−02 
                 −1.10070E+00 
               
               
                 A12 
                 2.76500E−04 
                 1.57040E−03 
                 −2.35650E−02 
                  8.43450E−01 
               
               
                 A14 
                   
                   
                  1.00810E−02 
                 −3.94430E−01 
               
               
                 A16 
                   
                   
                 −1.72670E−03 
                  1.02050E−01 
               
               
                 A18 
                   
                   
                   
                 −1.10800E−02 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 52 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 5.83490E+01 
                 6.03610E+01 
                 3.63520E+01 
               
               
                 P4 
                 −1.51940E+01  
                 −1.65500E+02  
                 −7.49400E+01  
               
               
                 P6 
                 7.30800E+00 
                 2.59240E+02 
                 4.82750E+01 
               
               
                 P8 
                 −3.65700E+00  
                 −1.40080E+02  
                 −1.04240E+01  
               
               
                 P10 
                 2.43600E−01 
                 2.41850E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 53 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.61920E+01 
                 −3.48050E+01 
               
               
                   
                 P4 
                 −7.44800E+00 
                 −1.05800E+02 
               
               
                   
                 P6 
                  1.55500E+00 
                  1.68820E+02 
               
               
                   
                 P8 
                 −1.22400E+00 
                 −9.36340E+01 
               
               
                   
                 P10 
                 −8.39900E−02 
                  1.65270E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                   
                 TABLE 54A 
               
             
             
               
                   
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                   
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P1 
                 P2 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 P3 
                 P4 
                 P3/P4 
               
               
                   
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.069 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.069 
                 0.126 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 2 
                 0.126 
                 0.164 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.094 
               
               
                   
                 3 
                 0.164 
                 0.194 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.068 
                   
                 0.723 
               
               
                   
                 4 
                 0.194 
                 0.221 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.077 
               
               
                   
                 5 
                 0.221 
                 0.241 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.068 
                   
                 0.889 
               
               
                   
                 6 
                 0.241 
                 0.263 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 7 
                 0.263 
                 0.283 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.042 
               
               
                   
                 8 
                 0.283 
                 0.302 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.040 
                   
                 0.937 
               
               
                   
                 9 
                 0.302 
                 0.321 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.050 
               
               
                   
                 10 
                 0.321 
                 0.334 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.048 
                   
                 0.947 
               
               
                   
                 11 
                 0.334 
                 0.350 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 12 
                 0.350 
                 0.366 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.032 
               
               
                   
                 13 
                 0.366 
                 0.381 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.031 
                   
                 0.956 
               
               
                   
                 14 
                 0.381 
                 0.395 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.040 
               
               
                   
                 15 
                 0.395 
                 0.406 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.039 
                   
                 0.961 
               
               
                   
                 16 
                 0.406 
                 0.420 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 17 
                 0.420 
                 0.433 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.027 
               
               
                   
                 18 
                 0.433 
                 0.446 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.026 
                   
                 0.973 
               
               
                   
                 19 
                 0.446 
                 0.458 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.025 
               
               
                   
                 20 
                 0.458 
                 0.470 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.025 
                   
                 0.970 
               
               
                   
                 21 
                 0.470 
                 0.482 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.033 
               
               
                   
                 22 
                 0.482 
                 0.491 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.032 
                   
                 0.979 
               
               
                   
                 23 
                 0.491 
                 0.502 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 24 
                 0.502 
                 0.514 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.022 
               
               
                   
                 25 
                 0.514 
                 0.524 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.022 
                   
                 0.978 
               
               
                   
                 26 
                 0.524 
                 0.535 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.021 
               
               
                   
                 27 
                 0.535 
                 0.545 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.021 
                   
                 0.984 
               
               
                   
                 28 
                 0.545 
                 0.556 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.028 
               
               
                   
                 29 
                 0.556 
                 0.563 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.028 
                   
                 0.978 
               
               
                   
                 30 
                 0.563 
                 0.573 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 31 
                 0.573 
                 0.583 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.020 
               
               
                   
                 32 
                 0.583 
                 0.593 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.019 
                   
                 0.988 
               
               
                   
                 33 
                 0.593 
                 0.602 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.019 
               
               
                   
                 34 
                 0.602 
                 0.611 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.019 
                   
                 0.982 
               
               
                   
                 35 
                 0.611 
                 0.620 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.018 
               
               
                   
                 36 
                 0.620 
                 0.629 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.018 
                   
                 0.981 
               
               
                   
                 37 
                 0.629 
                 0.638 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.018 
               
               
                   
                 38 
                 0.638 
                 0.647 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.018 
                   
                 0.984 
               
               
                   
                 39 
                 0.647 
                 0.656 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.017 
               
               
                   
                 40 
                 0.656 
                 0.664 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.017 
                   
                 0.990 
               
               
                   
                 41 
                 0.664 
                 0.672 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.023 
               
               
                   
                 42 
                 0.672 
                 0.679 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.023 
                   
                 0.986 
               
               
                   
                 43 
                 0.679 
                 0.687 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
               
               
                   
                 44 
                 0.687 
                 0.695 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.016 
               
               
                   
                 45 
                 0.695 
                 0.703 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.016 
                   
                 0.989 
               
               
                   
                 46 
                 0.703 
                 0.711 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.016 
               
               
                   
                 47 
                 0.711 
                 0.719 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.016 
                   
                 0.992 
               
               
                   
                 48 
                 0.719 
                 0.727 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.016 
               
               
                   
                 49 
                 0.727 
                 0.734 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.015 
                   
                 0.991 
               
               
                   
                 50 
                 0.734 
                 0.742 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.015 
               
               
                   
                 51 
                 0.742 
                 0.750 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.015 
                   
                 0.990 
               
               
                   
                 52 
                 0.750 
                 0.757 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.015 
               
               
                   
                 53 
                 0.757 
                 0.764 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.015 
                   
                 0.989 
               
               
                   
                 54 
                 0.764 
                 0.772 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.015 
               
               
                   
                 55 
                 0.772 
                 0.779 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.014 
                   
                 0.989 
               
               
                   
                 56 
                 0.779 
                 0.786 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.014 
               
               
                   
                 57 
                 0.786 
                 0.793 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.014 
                   
                 0.989 
               
               
                   
                 58 
                 0.793 
                 0.800 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.014 
               
               
                   
                 59 
                 0.800 
                 0.807 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.014 
                   
                 0.990 
               
               
                   
                 60 
                 0.807 
                 0.814 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.014 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 54B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.814 
                 0.821 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.014 
                   
                 0.990 
               
               
                   
                 62 
                 0.821 
                 0.827 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.014 
               
               
                   
                 63 
                 0.827 
                 0.834 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.013 
                   
                 0.990 
               
               
                   
                 64 
                 0.834 
                 0.841 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.013 
               
               
                   
                 65 
                 0.841 
                 0.847 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.013 
                   
                 0.992 
               
               
                   
                 66 
                 0.847 
                 0.854 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.013 
               
               
                   
                 67 
                 0.854 
                 0.860 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.013 
                   
                 0.994 
               
               
                   
                 68 
                 0.860 
                 0.867 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.013 
               
               
                   
                 69 
                 0.867 
                 0.873 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.013 
                   
                 0.995 
               
               
                   
                 70 
                 0.873 
                 0.881 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.020 
               
               
                   
                 71 
                 0.881 
                 0.887 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 72 
                 0.887 
                 0.893 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.020 
                   
                 0.990 
               
               
                   
                 73 
                 0.893 
                 0.900 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.012 
               
               
                   
                 74 
                 0.900 
                 0.906 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.012 
                   
                 0.995 
               
               
                   
                 75 
                 0.906 
                 0.912 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.012 
               
               
                   
                 76 
                 0.912 
                 0.918 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.012 
                   
                 0.991 
               
               
                   
                 77 
                 0.918 
                 0.924 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.012 
               
               
                   
                 78 
                 0.924 
                 0.930 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.012 
                   
                 0.990 
               
               
                   
                 79 
                 0.930 
                 0.936 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.012 
               
               
                   
                 80 
                 0.936 
                 0.942 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.012 
                   
                 0.993 
               
               
                   
                 81 
                 0.942 
                 0.949 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.019 
               
               
                   
                 82 
                 0.949 
                 0.955 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 83 
                 0.955 
                 0.960 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.019 
                   
                 0.993 
               
               
                   
                 84 
                 0.960 
                 0.966 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.011 
               
               
                   
                 85 
                 0.966 
                 0.972 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.011 
                   
                 0.996 
               
               
                   
                 86 
                 0.972 
                 0.977 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.011 
               
               
                   
                 87 
                 0.977 
                 0.983 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.011 
                   
                 0.995 
               
               
                   
                 88 
                 0.983 
                 0.990 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.018 
               
               
                   
                 89 
                 0.990 
                 0.995 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 90 
                 0.995 
                 1.001 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.018 
                   
                 0.994 
               
               
                   
                 91 
                 1.001 
                 1.006 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.011 
               
               
                   
                 92 
                 1.006 
                 1.011 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.011 
                   
                 0.991 
               
               
                   
                 93 
                 1.011 
                 1.018 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.017 
               
               
                   
                 94 
                 1.018 
                 1.023 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 95 
                 1.023 
                 1.029 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.017 
                   
                 1.011 
               
               
                   
                 96 
                 1.029 
                 1.034 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.011 
               
               
                   
                 97 
                 1.034 
                 1.039 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.010 
                   
                 0.967 
               
               
                   
                 98 
                 1.039 
                 1.045 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.017 
               
               
                   
                 99 
                 1.045 
                 1.051 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 100 
                 1.051 
                 1.056 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.017 
                   
                 0.995 
               
               
                   
                 101 
                 1.056 
                 1.061 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.010 
               
               
                   
                 102 
                 1.061 
                 1.066 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.010 
                   
                 0.997 
               
               
                   
                 103 
                 1.066 
                 1.072 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.016 
               
               
                   
                 104 
                 1.072 
                 1.077 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 105 
                 1.077 
                 1.082 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.016 
                   
                 0.992 
               
               
                   
                 106 
                 1.082 
                 1.088 
                 2.41 
                   
                 1.21 
                   
                 0.87 
                   
                   
                 0.016 
               
               
                   
                 107 
                 1.088 
                 1.093 
                 2.41 
                   
                 1.21 
                   
                 0.87 
               
               
                   
                 108 
                 1.093 
                 1.098 
                   
                 1.35 
                   
                 0.67 
                   
                 0.49 
                 0.016 
                   
                 0.999 
               
               
                   
                 109 
                 1.098 
                 1.104 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 110 
                 1.104 
                 1.109 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.011 
                   
                 1.041 
               
               
                 Second Area 
                 111 
                 1.109 
                 1.115 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 112 
                 1.115 
                 1.120 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.010 
                   
                 0.968 
               
               
                   
                 113 
                 1.120 
                 1.125 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 114 
                 1.125 
                 1.127 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.012 
                   
                 0.990 
               
               
                   
                 115 
                 1.127 
                 1.132 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
               
               
                   
                 116 
                 1.132 
                 1.137 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.010 
               
               
                   
                 117 
                 1.137 
                 1.142 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.010 
                   
                 0.990 
               
               
                   
                 118 
                 1.142 
                 1.147 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 119 
                 1.147 
                 1.149 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.012 
                   
                 0.989 
               
               
                   
                 120 
                 1.149 
                 1.154 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 54C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.154 
                 1.158 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.009 
                   
               
               
                   
                 122 
                 1.158 
                 1.163 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.009 
                   
                 0.990 
               
               
                   
                 123 
                 1.163 
                 1.167 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.009 
               
               
                   
                 124 
                 1.167 
                 1.172 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.009 
                   
                 0.990 
               
               
                   
                 125 
                 1.172 
                 1.176 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.009 
               
               
                   
                 126 
                 1.176 
                 1.181 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.009 
                   
                 0.989 
               
               
                   
                 127 
                 1.181 
                 1.185 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.009 
               
               
                   
                 128 
                 1.185 
                 1.190 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.009 
                   
                 0.990 
               
               
                   
                 129 
                 1.190 
                 1.194 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.009 
               
               
                   
                 130 
                 1.194 
                 1.198 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.009 
                   
                 0.989 
               
               
                   
                 131 
                 1.198 
                 1.202 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.008 
               
               
                   
                 132 
                 1.202 
                 1.206 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.008 
                   
                 0.989 
               
               
                   
                 133 
                 1.206 
                 1.211 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.008 
               
               
                   
                 134 
                 1.211 
                 1.215 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.008 
                   
                 0.989 
               
               
                   
                 135 
                 1.215 
                 1.221 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 136 
                 1.221 
                 1.224 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 137 
                 1.224 
                 1.228 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.014 
                   
                 0.990 
               
               
                   
                 138 
                 1.228 
                 1.234 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 139 
                 1.234 
                 1.238 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 140 
                 1.238 
                 1.242 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.013 
                   
                 0.990 
               
               
                   
                 141 
                 1.242 
                 1.247 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 142 
                 1.247 
                 1.251 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 144 
                 1.251 
                 1.255 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.013 
                   
                 0.989 
               
               
                   
                 145 
                 1.255 
                 1.260 
                 2.19 
                   
                 1.10 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 146 
                 1.260 
                 1.265 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 147 
                 1.265 
                 1.269 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 148 
                 1.269 
                 1.272 
                   
                 1.43 
                   
                 0.72 
                   
                 0.59 
                 0.018 
                   
                 0.990 
               
               
                   
                 149 
                 1.272 
                 1.277 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 150 
                 1.277 
                 1.282 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 151 
                 1.282 
                 1.287 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 152 
                 1.287 
                 1.292 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 153 
                 1.292 
                 1.297 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 154 
                 1.297 
                 1.301 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 155 
                 1.301 
                 1.306 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                   
                 156 
                 1.306 
                 1.310 
                 2.19 
                   
                 1.10 
                   
                 0.89 
               
               
                 Third Area 
                 157 
                 1.310 
                 1.353 
                 4.00 
                   
                 2.00 
                   
                 0.89 
               
               
                   
                 158 
                 1.353 
                 1.387 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 159 
                 1.387 
                 1.411 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 160 
                 1.411 
                 1.430 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 161 
                 1.430 
                 1.445 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 162 
                 1.445 
                 1.458 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 163 
                 1.458 
                 1.469 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 164 
                 1.469 
                 1.480 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 165 
                 1.480 
                 1.489 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
                 166 
                 1.489 
                 1.500 
                 4.00 
                   
                 2.00 
                   
                 0.86 
               
               
                   
               
             
          
         
       
     
     Tenth Example 
     Hereafter, a tenth example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the tenth example are shown in Tables 55 to 59 and 60A to 60C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the tenth example are shown in  FIGS. 15A to 15C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 55 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.764 
                 2.000 
                 2.064 
               
               
                 NA 
                   
                 0.85 
                 0.60 
                 0.47 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 56 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.114 
                 1.880 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.129 
               
               
                 1-3 
                 1.007 
               
               
                 2 
                 −2.935 
                 0.672 
                 0.625 
                 0.319 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 57 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 2.81800E−02 
                 −5.93400E−02  
                 −7.43130E−02 
                  3.77280E−01 
               
               
                 A6 
                 1.47400E−02 
                 1.91700E−01 
                  8.02730E−02 
                 −6.19460E−01 
               
               
                 A8 
                 −2.68700E−03  
                 −9.45800E−02  
                 −2.09870E−02 
                  9.56070E−01 
               
               
                 A10 
                 5.72900E−04 
                 1.16600E−02 
                  1.92360E−02 
                 −1.08940E+00 
               
               
                 A12 
                 −8.33800E−07  
                 5.08200E−04 
                 −1.66450E−02 
                  8.30880E−01 
               
               
                 A14 
                   
                   
                  7.39140E−03 
                 −3.94180E−01 
               
               
                 A16 
                   
                   
                 −1.32860E−03 
                  1.04850E−01 
               
               
                 A18 
                   
                   
                   
                 −1.18530E−02 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 58 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                 5.87700E+01 
                 5.38870E+01 
                 4.19810E+01 
               
               
                 P4 
                 −1.57240E+01  
                 −8.87100E+01  
                 −8.66560E+01  
               
               
                 P6 
                 7.65100E+00 
                 1.65500E+02 
                 5.71620E+01 
               
               
                 P8 
                 −3.81500E+00  
                 −9.83500E+01  
                 −1.24450E+01  
               
               
                 P10 
                 1.69900E−01 
                 1.69850E+01 
                 0.00000E+00 
               
               
                 P12 
                 0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 59 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −4.07780E+01 
                 −4.41440E+01 
               
               
                   
                 P4 
                 −7.35000E+00 
                 −5.42840E+01 
               
               
                   
                 P6 
                  2.98700E+00 
                  1.06560E+02 
               
               
                   
                 P8 
                 −2.86700E+00 
                 −6.64150E+01 
               
               
                   
                 P10 
                  4.47400E−01 
                  1.21470E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                   
                 TABLE 60A 
               
             
             
               
                   
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 P1 
                 P2 
                   
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P3 
                 P4 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 μm 
                 μm 
                 P3/P4 
               
               
                   
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.068 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.068 
                 0.121 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 2 
                 0.121 
                 0.159 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.090 
               
               
                   
                 3 
                 0.159 
                 0.188 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.068 
                   
                 0.748 
               
               
                   
                 4 
                 0.188 
                 0.214 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.076 
               
               
                   
                 5 
                 0.214 
                 0.234 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.067 
                   
                 0.882 
               
               
                   
                 6 
                 0.234 
                 0.255 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 7 
                 0.255 
                 0.275 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.041 
               
               
                   
                 8 
                 0.275 
                 0.293 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.038 
                   
                 0.938 
               
               
                   
                 9 
                 0.293 
                 0.310 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.036 
               
               
                   
                 10 
                 0.310 
                 0.327 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.034 
                   
                 0.942 
               
               
                   
                 11 
                 0.327 
                 0.342 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.032 
               
               
                   
                 12 
                 0.342 
                 0.357 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.031 
                   
                 0.954 
               
               
                   
                 13 
                 0.357 
                 0.371 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.041 
               
               
                   
                 14 
                 0.371 
                 0.383 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.040 
                   
                 0.965 
               
               
                   
                 15 
                 0.383 
                 0.397 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 16 
                 0.397 
                 0.410 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.026 
               
               
                   
                 17 
                 0.410 
                 0.422 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.026 
                   
                 0.968 
               
               
                   
                 18 
                 0.422 
                 0.434 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.025 
               
               
                   
                 19 
                 0.434 
                 0.446 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.973 
               
               
                   
                 20 
                 0.446 
                 0.458 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.023 
               
               
                   
                 21 
                 0.458 
                 0.469 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.977 
               
               
                   
                 22 
                 0.469 
                 0.480 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.032 
               
               
                   
                 23 
                 0.480 
                 0.490 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.031 
                   
                 0.976 
               
               
                   
                 24 
                 0.490 
                 0.500 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 25 
                 0.500 
                 0.511 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.021 
               
               
                   
                 26 
                 0.511 
                 0.521 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.981 
               
               
                   
                 27 
                 0.521 
                 0.531 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
               
               
                   
                 28 
                 0.531 
                 0.541 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.982 
               
               
                   
                 29 
                 0.541 
                 0.550 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 30 
                 0.550 
                 0.560 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.983 
               
               
                   
                 31 
                 0.560 
                 0.569 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 32 
                 0.569 
                 0.578 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.984 
               
               
                   
                 33 
                 0.578 
                 0.588 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 34 
                 0.588 
                 0.596 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.984 
               
               
                   
                 35 
                 0.596 
                 0.605 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 36 
                 0.605 
                 0.614 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.986 
               
               
                   
                 37 
                 0.614 
                 0.622 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.025 
               
               
                   
                 38 
                 0.622 
                 0.630 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.987 
               
               
                   
                 39 
                 0.630 
                 0.638 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 40 
                 0.638 
                 0.646 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
               
               
                   
                 41 
                 0.646 
                 0.655 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.987 
               
               
                   
                 42 
                 0.655 
                 0.663 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
               
               
                   
                 43 
                 0.663 
                 0.671 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.989 
               
               
                   
                 44 
                 0.671 
                 0.678 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
               
               
                   
                 45 
                 0.678 
                 0.686 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.989 
               
               
                   
                 46 
                 0.686 
                 0.694 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 47 
                 0.694 
                 0.701 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.989 
               
               
                   
                 48 
                 0.701 
                 0.709 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 49 
                 0.709 
                 0.716 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.990 
               
               
                   
                 50 
                 0.716 
                 0.724 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 51 
                 0.724 
                 0.731 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.990 
               
               
                   
                 52 
                 0.731 
                 0.738 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 53 
                 0.738 
                 0.746 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
                 54 
                 0.746 
                 0.753 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 55 
                 0.753 
                 0.760 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
                 56 
                 0.760 
                 0.768 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.022 
               
               
                   
                 57 
                 0.768 
                 0.774 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 58 
                 0.774 
                 0.781 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.022 
                   
                 0.991 
               
               
                   
                 59 
                 0.781 
                 0.788 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 60 
                 0.788 
                 0.795 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 60B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.795 
                 0.801 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
                   
               
               
                   
                 62 
                 0.801 
                 0.808 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 63 
                 0.808 
                 0.815 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 64 
                 0.815 
                 0.821 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 65 
                 0.821 
                 0.828 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 66 
                 0.828 
                 0.834 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 67 
                 0.834 
                 0.840 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 68 
                 0.840 
                 0.847 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 69 
                 0.847 
                 0.853 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 70 
                 0.853 
                 0.859 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.993 
               
               
                   
                 71 
                 0.859 
                 0.866 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 72 
                 0.866 
                 0.872 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 73 
                 0.872 
                 0.878 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.993 
               
               
                   
                 74 
                 0.878 
                 0.884 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 75 
                 0.884 
                 0.890 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.993 
               
               
                   
                 76 
                 0.890 
                 0.896 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 77 
                 0.896 
                 0.902 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.993 
               
               
                   
                 78 
                 0.902 
                 0.908 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 79 
                 0.908 
                 0.914 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.994 
               
               
                   
                 80 
                 0.914 
                 0.921 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 81 
                 0.921 
                 0.926 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 82 
                 0.926 
                 0.932 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.993 
               
               
                   
                 83 
                 0.932 
                 0.938 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 84 
                 0.938 
                 0.943 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.993 
               
               
                   
                 85 
                 0.943 
                 0.949 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 86 
                 0.949 
                 0.955 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.993 
               
               
                   
                 87 
                 0.955 
                 0.961 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.021 
               
               
                   
                 88 
                 0.961 
                 0.966 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 89 
                 0.966 
                 0.970 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 1.021 
               
               
                 Second Area 
                 90 
                 0.970 
                 0.976 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 91 
                 0.976 
                 0.981 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.015 
               
               
                   
                 92 
                 0.981 
                 0.985 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.015 
                   
                 0.943 
               
               
                   
                 93 
                 0.985 
                 0.991 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 94 
                 0.991 
                 0.996 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.015 
               
               
                   
                 95 
                 0.996 
                 1.000 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.015 
                   
                 0.994 
               
               
                   
                 96 
                 1.000 
                 1.005 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 97 
                 1.005 
                 1.010 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 98 
                 1.010 
                 1.014 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.995 
               
               
                   
                 99 
                 1.014 
                 1.019 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 100 
                 1.019 
                 1.024 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
               
               
                   
                 101 
                 1.024 
                 1.029 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.010 
                   
                 0.995 
               
               
                   
                 102 
                 1.029 
                 1.034 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 103 
                 1.034 
                 1.038 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.995 
               
               
                   
                 104 
                 1.038 
                 1.043 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 105 
                 1.043 
                 1.048 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.010 
               
               
                   
                 106 
                 1.048 
                 1.053 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.010 
                   
                 0.996 
               
               
                   
                 107 
                 1.053 
                 1.058 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 108 
                 1.058 
                 1.062 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.996 
               
               
                   
                 109 
                 1.062 
                 1.066 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
               
               
                   
                 110 
                 1.066 
                 1.071 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 111 
                 1.071 
                 1.076 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.996 
               
               
                   
                 112 
                 1.076 
                 1.081 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 113 
                 1.081 
                 1.085 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.996 
               
               
                   
                 114 
                 1.085 
                 1.090 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 115 
                 1.090 
                 1.094 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.996 
               
               
                   
                 116 
                 1.094 
                 1.099 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 117 
                 1.099 
                 1.104 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.996 
               
               
                   
                 118 
                 1.104 
                 1.108 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 119 
                 1.108 
                 1.113 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.997 
               
               
                   
                 120 
                 1.113 
                 1.117 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 60C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.117 
                 1.122 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.997 
               
               
                   
                 122 
                 1.122 
                 1.127 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 123 
                 1.127 
                 1.131 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.997 
               
               
                   
                 124 
                 1.131 
                 1.136 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 125 
                 1.136 
                 1.140 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.997 
               
               
                   
                 126 
                 1.140 
                 1.145 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 127 
                 1.145 
                 1.149 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.009 
                   
                 0.997 
               
               
                   
                 128 
                 1.149 
                 1.154 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 129 
                 1.154 
                 1.159 
                 2.46 
                   
                 1.23 
                   
                 0.96 
               
               
                   
                 130 
                 1.159 
                 1.163 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.998 
               
               
                   
                 131 
                 1.163 
                 1.168 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 132 
                 1.168 
                 1.172 
                 2.46 
                   
                 1.23 
                   
                 0.96 
               
               
                   
                 133 
                 1.172 
                 1.177 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.998 
               
               
                   
                 134 
                 1.177 
                 1.182 
                 2.46 
                   
                 1.23 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 135 
                 1.182 
                 1.186 
                 2.46 
                   
                 1.23 
                   
                 0.96 
               
               
                   
                 136 
                 1.186 
                 1.191 
                   
                 1.39 
                   
                 0.69 
                   
                 0.54 
                 0.014 
                   
                 0.998 
               
               
                   
                 137 
                 1.191 
                 1.196 
                 2.46 
                   
                 1.23 
                   
                 0.96 
               
               
                   
                 138 
                 1.196 
                 1.200 
                 2.46 
                   
                 1.23 
                   
                 0.96 
               
               
                 Third Area 
                 139 
                 1.200 
                 1.344 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 140 
                 1.344 
                 1.389 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 141 
                 1.389 
                 1.415 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 142 
                 1.415 
                 1.433 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 144 
                 1.433 
                 1.447 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 145 
                 1.447 
                 1.459 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 146 
                 1.459 
                 1.470 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 147 
                 1.470 
                 1.480 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 148 
                 1.480 
                 1.488 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
                 149 
                 1.488 
                 1.500 
                 4.00 
                   
                 2.00 
                   
                 0.83 
               
               
                   
               
             
          
         
       
     
     Eleventh Example 
     Hereafter, an eleventh example of the objective lens  10  and the optical information recording/reproducing apparatus  100  is described. The specifications, numerical configurations defined when each of the optical discs OD 1  to OD 3  is used, coefficients for optical path difference functions, use diffraction orders, and configuration of the phase shift structure of the objective lens  10  according to the eleventh example are shown in Tables 55 to 59 and 60A to 60C. The wavefront aberrations caused when each of the optical discs OD 1  to OD 3  is used in the optical information recording/reproducing apparatus  100  according to the eleventh example are shown in  FIGS. 16A to 16C , respectively. 
     
       
         
               
               
               
               
               
             
               
               
               
               
               
             
           
               
                   
                 TABLE 61 
               
               
                   
                   
               
               
                   
                   
                 1 st  laser 
                 2 nd  laser 
                 3 rd  laser 
               
               
                   
                 unit 
                 beam 
                 beam 
                 beam 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Design Wavelength 
                 nm 
                 405 
                 660 
                 790 
               
               
                 Focal Length 
                 mm 
                 1.765 
                 1.990 
                 2.052 
               
               
                 NA 
                   
                 0.85 
                 0.65 
                 0.53 
               
               
                 Magnification 
                   
                 0.00 
                 0.00 
                 0.00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
             
           
               
                 TABLE 62 
               
               
                   
               
             
             
               
                 Surface 
                   
                   
                   
                   
                   
               
               
                 No. 
                 r 
                 d(405 nm) 
                 d(660 nm) 
                 d(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.110 
                 1.880 
                   
                   
                 Objective Lens 
               
               
                 1-2 
                 1.159 
               
               
                 1-3 
                 0.999 
               
               
                 2 
                 −2.938 
                 0.673 
                 0.613 
                 0.304 
               
               
                 3 
                 ∞ 
                 0.0875 
                 0.600 
                 1.200 
                 Optical Disc 
               
               
                 4 
                 ∞ 
               
               
                   
               
               
                 Surface 
               
               
                 No. 
                 n(405 nm) 
                 n(660 nm) 
                 n(790 nm) 
               
               
                   
               
               
                 1-1 
                 1.56023 
                 1.54044 
                 1.53653 
                   
                 Objective Lens 
               
               
                 1-2 
               
               
                 1-3 
               
               
                 2 
               
               
                 3 
                 1.62231 
                 1.57961 
                 1.57307 
                   
                 Optical Disc 
               
               
                 4 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
             
           
               
                 TABLE 63 
               
               
                   
               
               
                   
                 1-1 
                 1-2 
                 1-3 
                 2 
               
               
                 κ 
                 −1.000 
                 −1.000 
                 −1.000 
                 3.100 
               
               
                   
               
             
             
               
                 A4 
                 2.87500E−02 
                 −1.32030E−01  
                 −7.40620E−02 
                  3.77280E−01 
               
               
                 A6 
                 1.16900E−02 
                 2.99630E−01 
                  7.84670E−02 
                 −6.19460E−01 
               
               
                 A8 
                 −1.29800E−03  
                 −1.40280E−01  
                 −2.91270E−02 
                  9.56070E−01 
               
               
                 A10 
                 4.44600E−04 
                 1.62390E−02 
                  3.18120E−02 
                 −1.08940E+00 
               
               
                 A12 
                 7.32720E−06 
                 1.74560E−03 
                 −2.58000E−02 
                  8.30880E−01 
               
               
                 A14 
                   
                   
                  1.08960E−02 
                 −3.94180E−01 
               
               
                 A16 
                   
                   
                 −1.84820E−03 
                  1.04850E−01 
               
               
                 A18 
                   
                   
                   
                 −1.18530E−02 
               
               
                 A20 
               
               
                 A22 
               
               
                 A24 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                 TABLE 64 
               
               
                   
               
               
                 Diffraction 
                 1-1 
                 1-2 
                 1-3 
               
               
                 Order 
                 1/1/1 
                 1/1/— 
                 2/—/— 
               
               
                   
               
             
             
               
                 P2 
                  5.76530E+01 
                 4.20560E+01 
                 8.96940E+01 
               
               
                 P4 
                 −1.40670E+01 
                 −1.47290E+02  
                 −1.72020E+02  
               
               
                 P6 
                  4.99200E+00 
                 2.64180E+02 
                 1.07596E+02 
               
               
                 P8 
                 −2.65500E+00 
                 −1.48720E+02  
                 −2.26400E+01  
               
               
                 P10 
                 −6.08700E−02 
                 2.61445E+01 
                 0.00000E+00 
               
               
                 P12 
                  0.00000E+00 
                 0.00000E+00 
                 0.00000E+00 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
           
               
                   
                 TABLE 65 
               
               
                   
                   
               
               
                   
                 Diffraction 
                 1-1 
                 1-2 
               
               
                   
                 Order 
                 1/0/0 
                 1/0/— 
               
               
                   
                   
               
             
             
               
                   
                 P2 
                 −3.71940E+01 
                 −4.79400E+01 
               
               
                   
                 P4 
                 −7.44000E+00 
                 −9.30210E+01 
               
               
                   
                 P6 
                  1.54700E+00 
                  1.71690E+02 
               
               
                   
                 P8 
                 −8.66400E−01 
                 −9.85410E+01 
               
               
                   
                 P10 
                 −1.98200E−01 
                  1.76610E+01 
               
               
                   
                 P12 
                  0.00000E+00 
                  0.00000E+00 
               
               
                   
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
             
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                   
                 TABLE 66A 
               
             
             
               
                   
                   
               
               
                   
                 Phase 
                   
                   
               
             
          
           
               
                   
                 Difference 
                   
                 Step Height 
                 Annular Zone Pitch 
               
             
          
           
               
                   
                 Annular Zone 
                 Annular Zone 
                 φ1 
                 φ2 
                 Optical Path Length 
                 D1 
                 D2 
                 P1 
                 P2 
                   
               
             
          
           
               
                   
                 Annular 
                 Start Position 
                 End Position 
                 φ3 
                 φ4 
                 ΔOPD1/λ1 
                 ΔOPD2/λ1 
                 D3 
                 D4 
                 P3 
                 P4 
                 P1/P2 
               
               
                   
                 Zone No. 
                 mm 
                 mm 
                 πrad 
                 πrad 
                 ΔOPD3/λ1 
                 ΔOPD4/λ1 
                 μm 
                 μm 
                 μm 
                 μm 
                 P3/P4 
               
               
                   
                   
               
             
          
           
               
                 First Area 
                 0 
                 0.000 
                 0.071 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                   
                 1 
                 0.071 
                 0.126 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 2 
                 0.126 
                 0.163 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.091 
               
               
                   
                 3 
                 0.163 
                 0.193 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.067 
                   
                 0.734 
               
               
                   
                 4 
                 0.193 
                 0.219 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.078 
               
               
                   
                 5 
                 0.219 
                 0.240 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.069 
                   
                 0.888 
               
               
                   
                 6 
                 0.240 
                 0.262 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 7 
                 0.262 
                 0.282 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.042 
               
               
                   
                 8 
                 0.282 
                 0.301 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.039 
                   
                 0.924 
               
               
                   
                 9 
                 0.301 
                 0.319 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.051 
               
               
                   
                 10 
                 0.319 
                 0.333 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.048 
                   
                 0.947 
               
               
                   
                 11 
                 0.333 
                 0.349 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 12 
                 0.349 
                 0.365 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.032 
               
               
                   
                 13 
                 0.365 
                 0.379 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.030 
                   
                 0.960 
               
               
                   
                 14 
                 0.379 
                 0.393 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.029 
               
               
                   
                 15 
                 0.393 
                 0.407 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.028 
                   
                 0.972 
               
               
                   
                 16 
                 0.407 
                 0.420 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.038 
               
               
                   
                 17 
                 0.420 
                 0.432 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.037 
                   
                 0.970 
               
               
                   
                 18 
                 0.432 
                 0.444 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 19 
                 0.444 
                 0.456 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.025 
               
               
                   
                 20 
                 0.456 
                 0.468 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.024 
                   
                 0.969 
               
               
                   
                 21 
                 0.468 
                 0.480 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.024 
               
               
                   
                 22 
                 0.480 
                 0.491 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.023 
                   
                 0.973 
               
               
                   
                 23 
                 0.491 
                 0.502 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.032 
               
               
                   
                 24 
                 0.502 
                 0.512 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.031 
                   
                 0.978 
               
               
                   
                 25 
                 0.512 
                 0.522 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 26 
                 0.522 
                 0.533 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.021 
               
               
                   
                 27 
                 0.533 
                 0.543 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 0.982 
               
               
                   
                 28 
                 0.543 
                 0.553 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
               
               
                   
                 29 
                 0.553 
                 0.563 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.020 
                   
                 0.984 
               
               
                   
                 30 
                 0.563 
                 0.573 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.020 
               
               
                   
                 31 
                 0.573 
                 0.582 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.982 
               
               
                   
                 32 
                 0.582 
                 0.592 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 33 
                 0.592 
                 0.601 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.982 
               
               
                   
                 34 
                 0.601 
                 0.610 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 35 
                 0.610 
                 0.619 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.970 
               
               
                   
                 36 
                 0.619 
                 0.629 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.025 
               
               
                   
                 37 
                 0.629 
                 0.636 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.025 
                   
                 0.999 
               
               
                   
                 38 
                 0.636 
                 0.644 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
               
               
                   
                 39 
                 0.644 
                 0.653 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
               
               
                   
                 40 
                 0.653 
                 0.661 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.988 
               
               
                   
                 41 
                 0.661 
                 0.670 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
               
               
                   
                 42 
                 0.670 
                 0.678 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.990 
               
               
                   
                 43 
                 0.678 
                 0.686 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
               
               
                   
                 44 
                 0.686 
                 0.694 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.990 
               
               
                   
                 45 
                 0.694 
                 0.702 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
               
               
                   
                 46 
                 0.702 
                 0.710 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.989 
               
               
                   
                 47 
                 0.710 
                 0.718 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.016 
               
               
                   
                 48 
                 0.718 
                 0.726 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.016 
                   
                 0.988 
               
               
                   
                 49 
                 0.726 
                 0.733 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 50 
                 0.733 
                 0.741 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.989 
               
               
                   
                 51 
                 0.741 
                 0.748 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 52 
                 0.748 
                 0.756 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.990 
               
               
                   
                 53 
                 0.756 
                 0.763 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 54 
                 0.763 
                 0.771 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.015 
                   
                 0.991 
               
               
                   
                 55 
                 0.771 
                 0.778 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.015 
               
               
                   
                 56 
                 0.778 
                 0.785 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
                 57 
                 0.785 
                 0.792 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 58 
                 0.792 
                 0.799 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
                 59 
                 0.799 
                 0.806 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 60 
                 0.806 
                 0.813 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.991 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 66B 
               
               
                   
               
             
             
               
                 First Area 
                 61 
                 0.813 
                 0.820 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
                   
               
               
                   
                 62 
                 0.820 
                 0.827 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.014 
                   
                 0.992 
               
               
                   
                 63 
                 0.827 
                 0.833 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.014 
               
               
                   
                 64 
                 0.833 
                 0.840 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.994 
               
               
                   
                 65 
                 0.840 
                 0.848 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.021 
               
               
                   
                 66 
                 0.848 
                 0.854 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 67 
                 0.854 
                 0.861 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.021 
                   
                 1.009 
               
               
                   
                 68 
                 0.861 
                 0.867 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 69 
                 0.867 
                 0.874 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.969 
               
               
                   
                 70 
                 0.874 
                 0.880 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 71 
                 0.880 
                 0.887 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.993 
               
               
                   
                 72 
                 0.887 
                 0.893 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 73 
                 0.893 
                 0.899 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.013 
                   
                 0.992 
               
               
                   
                 74 
                 0.899 
                 0.906 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.013 
               
               
                   
                 75 
                 0.906 
                 0.912 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.992 
               
               
                   
                 76 
                 0.912 
                 0.919 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 77 
                 0.919 
                 0.925 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 78 
                 0.925 
                 0.931 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.019 
                   
                 0.994 
               
               
                   
                 79 
                 0.931 
                 0.937 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 80 
                 0.937 
                 0.943 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.995 
               
               
                   
                 81 
                 0.943 
                 0.949 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 82 
                 0.949 
                 0.955 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.996 
               
               
                   
                 83 
                 0.955 
                 0.962 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.019 
               
               
                   
                 84 
                 0.962 
                 0.968 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 85 
                 0.968 
                 0.973 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.994 
               
               
                   
                 86 
                 0.973 
                 0.979 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.012 
               
               
                   
                 87 
                 0.979 
                 0.985 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.012 
                   
                 0.992 
               
               
                   
                 88 
                 0.985 
                 0.992 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 89 
                 0.992 
                 0.997 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 90 
                 0.997 
                 1.003 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.018 
                   
                 0.996 
               
               
                   
                 91 
                 1.003 
                 1.009 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 92 
                 1.009 
                 1.014 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.997 
               
               
                   
                 93 
                 1.014 
                 1.021 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.018 
               
               
                   
                 94 
                 1.021 
                 1.026 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 95 
                 1.026 
                 1.032 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.993 
               
               
                   
                 96 
                 1.032 
                 1.037 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.011 
               
               
                   
                 97 
                 1.037 
                 1.043 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.011 
                   
                 0.994 
               
               
                   
                 98 
                 1.043 
                 1.049 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
               
               
                   
                 99 
                 1.049 
                 1.054 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 100 
                 1.054 
                 1.060 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.998 
               
               
                   
                 101 
                 1.060 
                 1.066 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.017 
               
               
                   
                 102 
                 1.066 
                 1.071 
                 2.46 
                   
                 1.23 
                   
                 0.89 
               
               
                   
                 103 
                 1.071 
                 1.077 
                   
                 1.39 
                   
                 0.69 
                   
                 0.50 
                 0.017 
                   
                 0.993 
               
               
                   
                 104 
                 1.077 
                 1.084 
                 2.46 
                   
                 1.23 
                   
                 0.89 
                   
                   
                 0.023 
               
               
                 Second Area 
                 105 
                 1.084 
                 1.090 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 106 
                 1.090 
                 1.094 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.022 
                   
                 0.985 
               
               
                   
                 107 
                 1.094 
                 1.099 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 108 
                 1.099 
                 1.104 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.018 
               
               
                   
                 109 
                 1.104 
                 1.108 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.018 
                   
                 0.995 
               
               
                   
                 110 
                 1.108 
                 1.112 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 111 
                 1.112 
                 1.117 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 112 
                 1.117 
                 1.122 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 113 
                 1.122 
                 1.126 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.014 
                   
                 0.996 
               
               
                   
                 114 
                 1.126 
                 1.130 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 115 
                 1.130 
                 1.135 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.013 
               
               
                   
                 116 
                 1.135 
                 1.139 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.013 
                   
                 0.996 
               
               
                   
                 117 
                 1.139 
                 1.144 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 118 
                 1.144 
                 1.149 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.013 
               
               
                   
                 119 
                 1.149 
                 1.152 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.013 
                   
                 0.996 
               
               
                   
                 120 
                 1.152 
                 1.157 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 66C 
               
               
                   
               
             
             
               
                 Second Area 
                 121 
                 1.157 
                 1.162 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.014 
                   
               
               
                   
                 122 
                 1.162 
                 1.167 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.665 
               
               
                   
                 123 
                 1.167 
                 1.171 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.013 
               
               
                   
                 124 
                 1.171 
                 1.175 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.013 
                   
                 0.996 
               
               
                   
                 125 
                 1.175 
                 1.180 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
               
               
                   
                 126 
                 1.180 
                 1.184 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 127 
                 1.184 
                 1.189 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.996 
               
               
                   
                 128 
                 1.189 
                 1.193 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 129 
                 1.193 
                 1.198 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.997 
               
               
                   
                 130 
                 1.198 
                 1.202 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 131 
                 1.202 
                 1.207 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.997 
               
               
                   
                 132 
                 1.207 
                 1.212 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 133 
                 1.212 
                 1.216 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.997 
               
               
                   
                 134 
                 1.216 
                 1.221 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 135 
                 1.221 
                 1.225 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.997 
               
               
                   
                 136 
                 1.225 
                 1.229 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.009 
               
               
                   
                 137 
                 1.229 
                 1.234 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.009 
                   
                 0.997 
               
               
                   
                 138 
                 1.234 
                 1.239 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 139 
                 1.239 
                 1.244 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 140 
                 1.244 
                 1.248 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.014 
                   
                 0.997 
               
               
                   
                 141 
                 1.248 
                 1.253 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.014 
               
               
                   
                 142 
                 1.253 
                 1.258 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 144 
                 1.258 
                 1.262 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.014 
                   
                 0.997 
               
               
                   
                 145 
                 1.262 
                 1.267 
                 2.36 
                   
                 1.18 
                   
                 0.96 
                   
                   
                 0.024 
               
               
                   
                 146 
                 1.267 
                 1.272 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 147 
                 1.272 
                 1.277 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 148 
                 1.277 
                 1.282 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                   
                 149 
                 1.282 
                 1.286 
                   
                 1.48 
                   
                 0.74 
                   
                 0.61 
                 0.024 
                   
                 0.998 
               
               
                   
                 150 
                 1.286 
                 1.290 
                 2.36 
                   
                 1.18 
                   
                 0.96 
               
               
                 Third Area 
                 151 
                 1.290 
                 1.321 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 152 
                 1.321 
                 1.354 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 153 
                 1.354 
                 1.376 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 154 
                 1.376 
                 1.393 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 155 
                 1.393 
                 1.406 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 156 
                 1.406 
                 1.418 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 157 
                 1.418 
                 1.428 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 158 
                 1.428 
                 1.437 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 159 
                 1.437 
                 1.445 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 160 
                 1.445 
                 1.452 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 161 
                 1.452 
                 1.459 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 162 
                 1.459 
                 1.465 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 163 
                 1.465 
                 1.471 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 164 
                 1.471 
                 1.476 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 165 
                 1.476 
                 1.481 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 166 
                 1.481 
                 1.486 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 167 
                 1.486 
                 1.491 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 168 
                 1.491 
                 1.495 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
                 169 
                 1.495 
                 1.500 
                 2.00 
                   
                 1.00 
                   
                 0.87 
               
               
                   
               
             
          
         
       
     
     Table 67 shows values calculated by applying the conditions (2) to (15) and (17) to (30) to the first to eleventh examples (regarding the arrangement intervals P 1  to P 4  of the conditions (1) and (16), see Tables showing the concrete configurations of the phase shift structures of each example). Table 68 shows a list of the light use efficiencies (diffraction efficiencies) defined when each of the optical discs OD 1  to OD 3  is used in the first to eleventh examples. 
     
       
         
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 67 
               
               
                   
               
             
             
               
                   
                   
                 Lower 
                 Lower 
                 Upper 
                 Upper 
                   
                   
                   
                   
                   
                   
               
               
                   
                   
                 Limit 
                 Limit 
                 Limit 
                 Limit 
                 1st 
                 2nd 
                 3rd 
                 4th 
                 5th 
                 6th 
               
               
                   
                 Unit 
                 (1) 
                 (2) 
                 (2) 
                 (1) 
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
               
               
                   
               
               
                             φ1/            φ2 
                   
                 −3.00 
                 −1.30 
                 −0.35 
                 −0.10 
                 −0.757 
                 −0.915 
                 −0.727 
                 −0.314 
                 −0.693 
                 −0.888 
               
               
                 φ1 
                 πrad 
                 2.2 
                 2.30 
                 2.60 
                 2.80 
                 2.465 
                 2.627 
                 2.302 
                 2.193 
                 2.474 
                 2.735 
               
               
                 φ2 
                 πrad 
                 1.00 
                 1.10 
                 1.50 
                 1.70 
                 1.386 
                 1.315 
                 1.585 
                 1.386 
                 1.316 
                 1.173 
               
               
                             OPD1/λ1 
                   
                 1.1 
                 1.15 
                 1.30 
                 1.40 
                 1.232 
                 1.313 
                 1.151 
                 1.096 
                 1.237 
                 1.367 
               
               
                             OPD2/λ1 
                   
                 0.50 
                 0.55 
                 0.75 
                 0.85 
                 0.693 
                 0.657 
                 0.793 
                 0.693 
                 0.658 
                 0.586 
               
               
                 D1 
                 μm 
                 0.70 
                 0.80 
                 0.95 
                 1.10 
                 0.891 
                 0.950 
                 0.832 
                 0.793 
                 0.770 
                 1.056 
               
               
                 D2 
                 μm 
                 0.30 
                 0.40 
                 0.55 
                 0.70 
                 0.501 
                 0.475 
                 0.573 
                 0.501 
                 0.409 
                 0.453 
               
               
                             φ3/            φ4 
                   
                 −2.70 
                 −1.05 
                 −0.20 
                 −0.05 
                 −0.685 
                 −1.038 
                 −0.686 
                 −0.314 
                 −0.952 
                 −0.851 
               
               
                 φ3 
                 πrad 
                 2.1 
                 2.20 
                 2.6 
                 2.8 
                 2.356 
                 2.681 
                 2.247 
                 2.193 
                 2.534 
                 2.519 
               
               
                 φ4 
                 πrad 
                 1.00 
                 1.1 
                 1.5 
                 1.70 
                 1.480 
                 1.344 
                 1.640 
                 1.386 
                 1.439 
                 1.390 
               
               
                             OPD3/λ1 
                   
                 1.05 
                 1.10 
                 1.30 
                 1.4 
                 1.178 
                 1.340 
                 1.124 
                 1.096 
                 1.267 
                 1.259 
               
               
                             OPD4/λ1 
                   
                 0.50 
                 0.55 
                 0.75 
                 0.85 
                 0.740 
                 0.672 
                 0.820 
                 0.693 
                 0.719 
                 0.695 
               
               
                 D3 
                 μm 
                 0.85 
                 0.95 
                 1.10 
                 1.20 
                 0.942 
                 1.084 
                 0.896 
                 0.869 
                 0.871 
                 1.089 
               
               
                 D4 
                 μm 
                 0.45 
                 0.55 
                 0.75 
                 0.85 
                 0.598 
                 0.454 
                 0.659 
                 0.554 
                 0.513 
                 0.613 
               
               
                   
               
             
          
           
               
                   
                   
                 Lower 
                 Lower 
                 Upper 
                 Upper 
                   
                   
                   
                   
                   
               
               
                   
                   
                 Limit 
                 Limit 
                 Limit 
                 Limit 
                 7th 
                 8th 
                 9th 
                 10th 
                 11th 
               
               
                   
                 Unit 
                 (1) 
                 (2) 
                 (2) 
                 (1) 
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
               
               
                   
               
               
                             φ1/            φ2 
                   
                 −3.00 
                 −1.30 
                 −0.35 
                 −0.10 
                 −1.167 
                 −0.912 
                 −0.630 
                 −0.757 
                 −0.757 
               
               
                 φ1 
                 πrad 
                 2.2 
                 2.30 
                 2.60 
                 2.80 
                 2.356 
                 2.519 
                 2.411 
                 2.465 
                 2.465 
               
               
                 φ2 
                 πrad 
                 1.00 
                 1.10 
                 1.50 
                 1.70 
                 1.695 
                 1.431 
                 1.348 
                 1.386 
                 1.386 
               
               
                             OPD1/λ1 
                   
                 1.1 
                 1.15 
                 1.30 
                 1.40 
                 1.178 
                 1.259 
                 1.205 
                 1.232 
                 1.232 
               
               
                             OPD2/λ1 
                   
                 0.50 
                 0.55 
                 0.75 
                 0.85 
                 0.847 
                 0.715 
                 0.674 
                 0.693 
                 0.693 
               
               
                 D1 
                 μm 
                 0.70 
                 0.80 
                 0.95 
                 1.10 
                 0.852 
                 0.911 
                 0.871 
                 0.891 
                 0.891 
               
               
                 D2 
                 μm 
                 0.30 
                 0.40 
                 0.55 
                 0.70 
                 0.613 
                 0.517 
                 0.487 
                 0.501 
                 0.501 
               
               
                             φ3/            φ4 
                   
                 −2.70 
                 −1.05 
                 −0.20 
                 −0.05 
                 −0.685 
                 −0.990 
                 −0.338 
                 −0.757 
                 −0.685 
               
               
                 φ3 
                 πrad 
                 2.1 
                 2.20 
                 2.6 
                 2.8 
                 2.465 
                 2.411 
                 2.193 
                 2.465 
                 2.356 
               
               
                 φ4 
                 πrad 
                 1.00 
                 1.1 
                 1.5 
                 1.70 
                 1.322 
                 1.585 
                 1.431 
                 1.386 
                 1.480 
               
               
                             OPD3/λ1 
                   
                 1.05 
                 1.10 
                 1.30 
                 1.4 
                 1.232 
                 1.205 
                 1.096 
                 1.232 
                 1.178 
               
               
                             OPD4/λ1 
                   
                 0.50 
                 0.55 
                 0.75 
                 0.85 
                 0.661 
                 0.793 
                 0.715 
                 0.693 
                 0.740 
               
               
                 D3 
                 μm 
                 0.85 
                 0.95 
                 1.10 
                 1.20 
                 0.852 
                 1.014 
                 0.888 
                 0.958 
                 0.960 
               
               
                 D4 
                 μm 
                 0.45 
                 0.55 
                 0.75 
                 0.85 
                 0.517 
                 0.675 
                 0.585 
                 0.543 
                 0.610 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
             
               
               
               
               
               
               
             
           
               
                 TABLE 68 
               
               
                   
               
             
             
               
                   
                 1st 
                 2nd 
                 3rd 
                 4th 
                 5th 
                 6th 
               
               
                   
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
               
               
                   
               
               
                 Optical Disc OD1 
                 82% 
                 74% 
                 91% 
                 79% 
                 76% 
                 68% 
               
               
                 Optical Disc OD2 
                 61% 
                 68% 
                 57% 
                 52% 
                 67% 
                 73% 
               
               
                 Optical Disc OD3 
                 62% 
                 64% 
                 50% 
                 46% 
                 79% 
                 76% 
               
               
                   
               
             
          
           
               
                   
                 7th 
                 8th 
                 9th 
                 10th 
                 11th 
               
               
                   
                 Example 
                 Example 
                 Example 
                 Example 
                 Example 
               
               
                   
               
               
                 Optical Disc OD1 
                 89% 
                 82% 
                 80% 
                 82% 
                 82% 
               
               
                 Optical Disc OD2 
                 50% 
                 61% 
                 63% 
                 65% 
                 63% 
               
               
                 Optical Disc OD3 
                 54% 
                 63% 
                 64% 
                 60% 
                 62% 
               
               
                   
               
             
          
         
       
     
     As shown in Table 67, the objective lens  10  according to each of the first to eleventh examples satisfies at least the conditions (1) and (2). As a result, as shown in each of the wavefront aberration graphs of  FIGS. 6A to 16C , phase changes which have substantially the same period and are in opposite directions are given to the laser beam having the wavelength λ 1  passed through the first step and the laser beam having the wavelength λ 1  passed through the second step, and these phase changes are cancelled with each other, thereby suppressing undulation of the wavefront. Therefore, the amount of the wavefront aberration is small. That is, the objective lens  10  according to each of the first to eleventh examples is able to suppress disturbance of the wavefront while giving the multiple optical effects by the first and second steps on the laser beams having the wavelengths λ 1 , λ 2  and λ 3 . Therefore, as shown in Table 68, decrease of the light use efficiency due to the phase shift by the phase shift structure can be effectively suppressed. Furthermore, the objective lens  10  according to each of the first to eleventh examples is able to additionally provide the advantages achieved by additionally satisfying the conditions other than the conditions (1) and (2). 
     Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, other embodiments are possible. 
     This application claims priority of Japanese Patent Application No. P2011-156511, filed on Jul. 15, 2011. The entire subject matter of the application is incorporated herein by reference.