Patent ID: 12228795

Throughout the drawings and the detailed description, the same reference numerals refer to the same elements. The drawings may not be to scale, and the relative size, proportions, and depictions of elements in the drawings may be exaggerated for clarity, illustration, and convenience.

DETAILED DESCRIPTION

The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent to one of ordinary skill in the art. The sequences of operations described herein are merely examples, and are not limited to those set forth herein, but may be changed as will be apparent to one of ordinary skill in the art, with the exception of operations necessarily occurring in a certain order. Also, descriptions of functions and constructions that would be well known to one of ordinary skill in the art may be omitted for increased clarity and conciseness.

The features described herein may be embodied in different forms, and are not to be construed as being limited to the examples described herein. Rather, the examples described herein have been provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to one of ordinary skill in the art.

Herein, it is noted that use of the term “may” with respect to an example or embodiment, e.g., as to what an example or embodiment may include or implement, means that at least one example or embodiment exists in which such a feature is included or implemented while all examples and embodiments are not limited thereto.

Throughout the specification, when an element, such as a layer, region, or substrate, is described as being “on,” “connected to,” or “coupled to” another element, it may be directly “on,” “connected to,” or “coupled to” the other element, or there may be one or more other elements intervening therebetween. In contrast, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there can be no other elements intervening therebetween.

As used herein, the term “and/or” includes any one and any combination of any two or more of the associated listed items.

Although terms such as “first,” “second,” and “third” may be used herein to describe various members, components, regions, layers, or sections, these members, components, regions, layers, or sections are not to be limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or section from another member, component, region, layer, or section. Thus, a first member, component, region, layer, or section referred to in examples described herein may also be referred to as a second member, component, region, layer, or section without departing from the teachings of the examples.

Spatially relative terms such as “above,” “upper,” “below,” and “lower” may be used herein for ease of description to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being “above” or “upper” relative to another element will then be “below” or “lower” relative to the other element. Thus, the term “above” encompasses both the above and below orientations depending on the spatial orientation of the device. The device may also be oriented in other ways (for example, rotated 90 degrees or at other orientations), and the spatially relative terms used herein are to be interpreted accordingly.

The terminology used herein is for describing various examples only, and is not to be used to limit the disclosure. The articles “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “includes,” and “has” specify the presence of stated features, numbers, operations, members, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, members, elements, and/or combinations thereof.

Due to manufacturing techniques and/or tolerances, variations of the shapes illustrated in the drawings may occur. Thus, the examples described herein are not limited to the specific shapes illustrated in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways as will be apparent after an understanding of the disclosure of this application. Further, although the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the disclosure of this application.

The drawings may not be to scale, and the relative sizes, proportions, and depiction of elements in the drawings may be exaggerated for clarity, illustration, and convenience.

In the following description, a first lens refers to a lens closest to an object (or a subject), and a seventh lens refers to a lens closest to an imaging plane (or an image sensor). In the following description, a curvature of radius, a thickness, TTL (a distance from an object-side surface of the first lens to an imaging plane), 2ImgHT (a diagonal length of the imaging plane), ImgHT (½ of 2ImgHT), and a focal length of the lens may be represented in millimeters (mm).

The thickness of the lens, an interval between the lenses, and the TTL is a distance from an optical axis of the lens. In addition, in an explanation of a shape of each lens, a convex shape on one surface may mean that a paraxial region of the surface is convex, and a concave shape on one surface may mean that a paraxial region of the surface is concave. Therefore, even when one surface of the lens is described as having a convex shape, an edge portion of the lens may be concave. Similarly, even when one surface of the lens is described as having a concave shape, an edge portion of the lens may be convex.

The various imaging lens systems described herein may be configured to be mounted in a portable electronic device. For example, the imaging lens system may be mounted in a smartphone, a notebook computer, an augmented reality device, a virtual reality device (VR), a portable game machine, or the like. However, the range and examples of use of the imaging lens system described herein are not limited to the above-described electronic device. For example, the optical imaging system may provide a narrow mounting space, but may be applied to an electronic device requiring high-resolution imaging.

An imaging lens system according to a the various examples may include a plurality of lenses. For example, the imaging lens system may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed from an object side.

In the imaging lens system, a length of the imaging lens system (a distance from an object-side surface of the first lens to an imaging plane (TTL)) and a diagonal length of the imaging plane (2ImgHT) may form a predetermined numerical relationship. For example, in the imaging lens system, TTL/2ImgHT may be 0.6 or less. In addition, the imaging lens system may include two or more lenses having negative refractive power. For example, the imaging lens system may include a fourth lens having negative refractive power and a fifth lens having negative refractive power.

An imaging lens system according to the various examples may include a plurality of lenses. For example, the imaging lens system may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, sequentially disposed from an object side. In the imaging lens system, TTL/2ImgHT of 0.6 or less. In addition, the imaging lens system may include a lens having a concave surface. For example, the imaging lens system may include a fourth lens having a concave image-side surface.

An imaging lens system according to the various examples may satisfy at least one of the following conditional expressions.
TTL/2ImgHT0.6
0<f1/f<1.8
25<V1−V2<45
V1−V3<35
15<V1−V5
−4.0<f2/f<−1.0
3.0<f3/f
f4/f<−3.0
−5.0<f5/f
0<f6/f
f7/f<0
TTL/f<1.2
|f1/f2|<1.0
−2.0<f2/f3<0
BFL/f<0.3
D12/f<0.1

In the above conditional expressions, f is a focal length of the imaging lens system, f2 is a focal length of the second lens, f3 is a focal length of the third lens, f4 is a focal length of the fourth lens, f5 is a focal length of the fifth lens, f6 is a focal length of the sixth lens, f7 is a focal length of the seventh lens, BFL is a distance from an image-side surface of the seventh lens to an imaging plane, V1 is an Abbe number of the first lens, V2 is an Abbe number of the second lens, V3 is an Abbe number of the third lens, V5 is an Abbe number of the fifth lens, and D12 is a distance from an image-side surface of the first lens to an object-side surface of the second lens.

The imaging lens system according to the various examples may satisfy some of the above-described conditional expressions in a more limited form as follows.
0.5<TTL/2ImgHT<0.6
30<V1−V3<35
30<V1−V5<35
3.0<f3/f<6.0
−9.0<f4/f<−3.0
−5.0<f5/f<−1.0
0.4<f6/f<1.0
−1.0<f7/f<−0.3
1.1<TTL/f<1.2
0.1<|f1/f2|<0.4
0.1<BFL/f<0.3
0.01<D12/f<0.1

An imaging lens system according to the various examples may satisfy at least one of the following conditional expressions.
0.23<D12/D23<0.36
0.84<D23/D34<0.96
D56/D67<0.70

In the above conditional expressions, D23 is a distance from an image-side surface of the second lens to an object-side surface of the third lens, D34 is a distance from an image-side surface of the third lens to an object-side surface of the fourth lens, D56 is a distance from an image-side surface of the fifth lens to an object side-surface of the sixth lens, and D67 is a distance from an image-side surface of the sixth lens to an object-side surface of the seventh lens.

The imaging lens system according to the various examples may include one or more lenses having the following characteristics, if necessary.

The first lens has refractive power. The first lens includes a spherical surface or an aspherical surface. For example, both surfaces of the first lens may be aspherical. The first lens may be formed of a material having high light transmittance and excellent workability. For example, the first lens may be formed of a plastic material or a glass material. The first lens may be configured to have a high refractive index. For example, the refractive index of the first lens may be lower than 1.6. As a specific example, the refractive index of the first lens may be greater than 1.52 and lower than 1.56. The first lens may have a predetermined Abbe number. For example, the Abbe number of the first lens may be greater than 50. As a specific example, the Abbe number of the first lens may be greater than 53 and lower than 58.

The second lens has refractive power. The second lens includes a spherical surface or an aspherical surface. For example, both surfaces of the second lens may be aspherical. The second lens may be formed of a material having high light transmittance and excellent workability. For example, the second lens may be formed of a plastic material or a glass material. The second lens may be configured to have a high refractive index. For example, the refractive index of the second lens may be greater than 1.6. As a specific example, the refractive index of the second lens may be greater than 1.65 and lower than 1.70. The second lens may have a predetermined Abbe number. For example, the Abbe number of the second lens may be less than 30. As a specific example, the Abbe number of the second lens may be greater than 16 and lower than 23.

The third lens has refractive power. The third lens includes a spherical surface or an aspherical surface. For example, both surfaces of the third lens may be aspherical. The third lens may be formed of a material having high light transmittance and excellent workability. For example, the third lens may be formed of a plastic material or a glass material. The third lens may be configured to have a high refractive index. For example, the refractive index of the third lens may be greater than 1.5. As a specific example, the refractive index of the third lens may be greater than 1.52 and lower than 1.67.

The fourth lens has refractive power. For example, the fourth lens may have negative refractive power. One surface of the fourth lens may be concave. For example, the fourth lens may have a concave image-side surface. The fourth lens includes a spherical surface or an aspherical surface. For example, both surfaces of the third lens may be aspherical. The fourth lens may be formed of a material having high light transmittance and excellent workability. For example, the fourth lens may be formed of a plastic material or a glass material. The fourth lens may be configured to have a high refractive index. For example, the refractive index of the fourth lens may be greater than 1.6. As a specific example, the refractive index of the fourth lens may be greater than 1.65 and lower than 1.70. The fourth lens may have a predetermined Abbe number. For example, the Abbe number of the fourth lens may be less than 30. As a specific example, the Abbe number of the fourth lens may be greater than 16 and lower than 23.

The fifth lens has refractive power. For example, the fifth lens may have negative refractive power. One surface of the fifth lens may be convex. For example, the fifth lens may have a convex object-side surface. One surface of the fifth lens may be concave. For example, the fifth lens may have a concave image-side surface. The fifth lens includes a spherical surface or an aspherical surface. For example, both surfaces of the fifth lens may be aspherical. An inflection point may be formed on one or both surfaces of the fifth lens. For example, an inflection point may be formed on the object-side surface and the image-side surface of the fifth lens. The fifth lens may be formed of a material having high light transmittance and excellent workability. For example, the fifth lens may be formed of a plastic material or a glass material. The fifth lens may be configured to have a predetermined refractive index. For example, the refractive index of the fifth lens may be greater than 1.5. As a specific example, the refractive index of the fifth lens may be greater than 1.56 and lower than 1.67. The fifth lens may have a predetermined Abbe number. For example, the Abbe number of the fifth lens may be greater than 20. As another example, the Abbe number of the fifth lens may be greater than 22 and lower than 40.

The sixth lens has refractive power. One surface of the sixth lens may be convex. For example, the sixth lens may have a convex image-side surface. The sixth lens includes a spherical surface or an aspherical surface. For example, both surfaces of the sixth lens may be aspherical. An inflection point may be formed on one or both surfaces of the sixth lens. For example, an inflection point may be formed on the object-side surface and the image-side surface of the sixth lens. The sixth lens may be formed of a material having high light transmittance and excellent workability. For example, the sixth lens may be formed of a plastic material or a glass material. The sixth lens may be configured to have a predetermined refractive index. For example, the refractive index of the sixth lens may be greater than 1.5. As a specific example, the refractive index of the sixth lens may be greater than 1.54 and lower than 1.60. The sixth lens may have a predetermined Abbe number. For example, the Abbe number of the sixth lens may be greater than 30. As a specific example, the Abbe number of the sixth lens may be greater than 34 and lower than 60.

The seventh lens has refractive power. The seventh lens includes a spherical surface or an aspherical surface. For example, both surfaces of the sixth lens may be aspherical. An inflection point may be formed on one or both surfaces of the seventh lens. For example, an inflection point may be formed on the object-side surface and the image-side surface of the seventh lens. The seventh lens may be formed of a material having high light transmittance and excellent workability. For example, the seventh lens may be formed of a plastic material or a glass material. The seventh lens may be configured to have a predetermined refractive index. For example, the refractive index of the sixth lens may be greater than 1.5. As a specific example, the refractive index of the seventh lens may be greater than 1.52 and lower than 1.57. The seventh lens may have a predetermined Abbe number. For example, the Abbe number of the seventh lens may be greater than 50. As a specific example, the Abbe number of the seventh lens may be greater than 53 and lower than 60.

The first to seventh lenses may include a spherical surface or an aspherical surface as described above. When the first to seventh lenses include an aspherical surface, the aspherical surface of the corresponding lens may be expressed by Equation 1 below.

Z=cY21+1-(1+K)⁢c2⁢Y2+AY4+BY6+CY8+DY1⁢0+EY1⁢2+FY1⁢4+GY1⁢6+HY1⁢8Equation⁢1:

In Equation 1, c is a curvature of a lens surface and is equal to a reciprocal of a radius of curvature of the lens surface at an optical axis of the lens surface, K is a conic constant, Y is a distance from any point on the lens surface to the optical axis of the lens surface in a direction perpendicular to the optical axis of the lens surface, A to H are aspheric constants, and Z (also known as sag) is a distance in a direction parallel to the optical axis of the lens surface from the point on the lens surface at the distance Y from the optical axis of the lens surface to a tangential plane perpendicular to the optical axis and intersecting a vertex of the lens surface.

The imaging lens system according to the various examples may further include a stop and a filter. For example, the imaging lens system may further include a stop disposed on the object side of the first lens or between the lens and the lens. As another example, the imaging lens system may further include a filter disposed between the seventh lens and an imaging plane. The stop may be configured to adjust an amount of light incident in a direction of the imaging plane, and the filter may block light of a specific wavelength. For reference, the filter described herein is configured to block infrared rays, but light of a wavelength that is blocked through the filter is not limited to infrared rays.

Hereinafter, an imaging lens system according to various examples will be described with reference to the drawings.

First, an imaging lens system according to a first example will be described with reference toFIG.1.

An imaging lens system100includes a first lens110, a second lens120, a third lens130, a fourth lens140, a fifth lens150, a sixth lens160, and a seventh lens170.

The first lens110has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens120has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens130has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens140has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens150has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens150. The sixth lens160has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens160. The seventh lens170has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens170.

The imaging lens system100may further include a filter IF and an imaging plane IP. The filter IF may be disposed between the seventh lens170and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens110to the seventh lens170is formed. For example, the imaging plane IP may be formed on one surface of an image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system100configured as above exhibits aberration characteristics as illustrated inFIG.2. Tables 1 and 2 illustrate lens characteristics and aspheric values of the imaging lens system100.

TABLE 1Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.91130.7181.54656.0S26.56170.060S3Second lens6.05750.2201.68918.2S43.84850.235S5Third lens20.20620.3071.53755.7S6−25.38380.250S7Fourth lens−35.05420.2731.67919.2S880.24630.373S9Fifth lens15.00350.2771.64124.0S106.05490.339S11Sixth lens7.11760.7231.57037.4S12−3.04580.533S13Seventh lens−18.96110.3801.53755.7S141.82850.238S15FilterInfinity0.1101.51964.2S16Infinity0.761S17Imaging planeInfinity0.000

TABLE 2Surface No.S1S2S3S4S5S6S7K−1.99E+00−4.59E+011.53E+016.97E+00−1.00E+00−1.00E+00−1.00E+004th order3.34E−02−9.76E−03−3.72E−02−1.50E−021.31E−02−3.31E−02−1.21E−01coefficient6th order−1.20E−022.01E−022.36E−02−4.15E−02−3.58E−017.21E−024.93E−01coefficient8th order9.00E−02−2.02E−01−4.22E−024.80E−013.50E+005.03E−02−3.25E+00coefficient10th order−3.36E−011.04E+004.11E−01−2.60E+00−2.25E+01−2.82E+001.40E+01coefficient12th order7.45E−01−3.05E+00−1.60E+001.01E+019.88E+011.74E+01−4.11E+01coefficient14th order−1.07E+005.78E+003.66E+00−2.94E+01−3.06E+02−5.84E+018.42E+01coefficient16th order9.91E−01−7.51E+00−5.63E+006.38E+016.80E+021.27E+02−1.22E+02coefficient18th order−5.46E−016.88E+006.13E+00−1.03E+02−1.09E+03−1.90E+021.27E+02coefficient20th order1.04E−01−4.50E+00−4.81E+001.21E+021.27E+031.98E+02−9.45E+01coefficient22nd order8.18E−022.09E+002.71E+00−1.03E+02−1.05E+03−1.45E+024.95E+01coefficient24th order−7.33E−02−6.68E−01−1.07E+006.07E+016.05E+027.29E+01−1.78E+01coefficient26th order2.68E−021.41E−012.80E−01−2.35E+01−2.30E+02−2.38E+014.14E+00coefficient28th order−4.96E−03−1.75E−02−4.33E−025.37E+005.19E+014.57E+00−5.64E−01coefficient30th order3.81E−049.78E−042.99E−03−5.46E−01−5.26E+00−3.89E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+001.67E+010.00E+006.59E+00−1.37E+011.72E+01−8.53E+004th order−1.03E−01−1.50E−01−1.81E−017.36E−034.38E−02−1.56E−01−1.02E−01coefficient6th order3.76E−015.31E−038.99E−02−5.25E−02−3.62E−029.81E−026.79E−02coefficient8th order−2.49E+002.58E−01−4.10E−026.14E−025.19E−02−4.54E−02−3.76E−02coefficient10th order1.13E+01−3.31E−013.12E−02−6.09E−02−5.53E−021.49E−021.56E−02coefficient12th order−3.50E+01−6.91E−01−4.14E−024.05E−023.48E−02−3.33E−03−4.80E−03coefficient14th order7.57E+013.35E+004.02E−02−1.82E−02−1.41E−025.10E−041.09E−03coefficient16th order−1.17E+02−6.39E+00−2.48E−025.42E−033.91E−03−5.42E−05−1.80E−04coefficient18th order1.30E+027.43E+001.02E−02−1.04E−03−7.52E−043.95E−062.19E−05coefficient20th order−1.04E+02−5.78E+00−2.88E−031.23E−041.01E−04−1.91E−07−1.93E−06coefficient22nd order5.98E+013.07E+005.69E−04−8.10E−06−9.50E−065.50E−091.22E−07coefficient24th order−2.40E+01−1.10E+00−7.70E−052.28E−076.05E−07−5.51E−11−5.32E−09coefficient26th order6.34E+002.55E−016.80E−060.00E+00−2.50E−08−1.75E−121.54E−10coefficient28th order−9.95E−01−3.45E−02−3.53E−070.00E+006.02E−106.29E−14−2.62E−12coefficient30th order7.00E−022.07E−038.16E−090.00E+00−6.42E−12−6.05E−162.00E−14coefficient

An imaging lens system according to a second example will be described with reference toFIG.3.

An imaging lens system200includes a first lens210, a second lens220, a third lens230, a fourth lens240, a fifth lens250, a sixth lens260, and a seventh lens270.

The first lens210has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens220has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens230has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens240has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens250has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens250. The sixth lens260has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens260. The seventh lens270has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens270.

The imaging lens system200may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens270and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens210to the seventh lens270is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system200configured as above may exhibit aberration characteristics as illustrated inFIG.4. Tables 3 and 4 illustrate lens characteristics and aspheric values of the imaging lens system200.

TABLE 3Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90900.7181.54656.0S26.57070.061S3Second lens6.00170.2201.68918.2S43.82160.239S5Third lens20.20620.3071.53755.7S6−25.92450.249S7Fourth lens−35.05420.2711.67919.2S887.43550.378S9Fifth lens15.00000.2741.64124.0S105.92640.334S11Sixth lens7.10680.7291.57037.4S12−3.02790.531S13Seventh lens−18.50050.3801.53755.7S141.84600.237S15FilterInfinity0.1101.51964.2S16Infinity0.763S17Imaging planeInfinity0.000

TABLE 4Surface No.S1S2S3S4S5S6S7K−1.99E+00−4.64E+011.54E+017.00E+00−1.00E+00−1.00E+00−1.00E+004th order3.29E−02−1.41E−02−4.00E−02−1.82E−021.21E−02−3.27E−02−1.21E−01coefficient6th order−5.61E−035.21E−023.19E−02−4.39E−03−3.71E−019.19E−024.93E−01coefficient8th order4.38E−02−3.45E−01−3.85E−029.74E−023.71E+00−3.71E−01−3.25E+00coefficient10th order−1.06E−011.47E+002.68E−016.20E−02−2.41E+015.32E−011.40E+01coefficient12th order−2.49E−02−3.93E+00−9.47E−01−2.30E+001.07E+022.13E+00−4.11E+01coefficient14th order6.80E−017.06E+001.95E+001.05E+01−3.31E+02−1.37E+018.42E+01coefficient16th order−1.75E+00−8.84E+00−2.63E+00−2.63E+017.36E+023.73E+01−1.22E+02coefficient18th order2.47E+007.91E+002.48E+004.23E+01−1.18E+03−6.31E+011.27E+02coefficient20th order−2.25E+00−5.08E+00−1.67E+00−4.59E+011.37E+037.22E+01−9.45E+01coefficient22nd order1.37E+002.32E+008.16E−013.38E+01−1.13E+03−5.70E+014.95E+01coefficient24th order−5.58E−01−7.37E−01−2.82E−01−1.66E+016.52E+023.09E+01−1.78E+01coefficient26th order1.46E−011.54E−016.57E−025.21E+00−2.48E+02−1.10E+014.14E+00coefficient28th order−2.23E−02−1.91E−02−9.14E−03−9.31E−015.58E+012.35E+00−5.64E−01coefficient30th order1.50E−031.06E−035.66E−047.17E−02−5.64E+00−2.29E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+001.19E+010.00E+006.60E+00−1.37E+011.63E+01−8.83E+004th order−1.01E−01−1.55E−01−1.85E−017.14E−034.20E−02−1.57E−01−9.84E−02coefficient6th order3.43E−014.35E−021.05E−01−5.15E−02−3.28E−021.03E−016.41E−02coefficient8th order−2.15E+008.48E−02−8.72E−025.95E−024.87E−02−5.12E−02−3.50E−02coefficient10th order9.38E+001.34E−011.09E−01−5.97E−02−5.40E−021.81E−021.43E−02coefficient12th order−2.84E+01−1.52E+00−1.24E−014.03E−023.47E−02−4.33E−03−4.40E−03coefficient14th order6.06E+014.37E+009.87E−02−1.83E−02−1.43E−027.20E−041.00E−03coefficient16th order−9.28E+01−7.30E+00−5.37E−025.51E−034.02E−03−8.48E−05−1.69E−04coefficient18th order1.03E+028.04E+002.03E−02−1.06E−03−7.84E−047.15E−062.07E−05coefficient20th order−8.28E+01−6.08E+00−5.43E−031.26E−041.07E−04−4.32E−07−1.85E−06coefficient22nd order4.77E+013.17E+001.03E−03−8.34E−06−1.01E−051.85E−081.18E−07coefficient24th order−1.92E+01−1.13E+00−1.34E−042.35E−076.53E−07−5.44E−10−5.21E−09coefficient26th order5.10E+002.60E−011.14E−050.00E+00−2.72E−081.05E−111.52E−10coefficient28th order−8.04E−01−3.51E−02−5.77E−070.00E+006.63E−10−1.20E−13−2.61E−12coefficient30th order5.69E−022.10E−031.30E−080.00E+00−7.16E−126.31E−162.01E−14coefficient

An imaging lens system according to a third example will be described with reference toFIG.5.

An imaging lens system300includes a first lens310, a second lens320, a third lens330, a fourth lens340, a fifth lens350, a sixth lens360, and a seventh lens370.

The first lens310has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens320has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens330has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens340has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens350has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens350. The sixth lens360has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens360. The seventh lens370has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens370.

The imaging lens system300may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens370and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens310to the seventh lens370is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system300configured as above may exhibit aberration characteristics as illustrated inFIG.6. Tables 5 and 6 illustrate lens characteristics and aspheric values of the imaging lens system300.

TABLE 5Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90990.6821.54656.0S26.98000.089S3Second lens6.18870.2001.67919.2S43.71500.257S5Third lens20.20620.3191.53755.7S6−21.93510.299S7Fourth lens−24.88620.2461.67919.2S838.00410.372S9Fifth lens5.09410.2401.64124.0S103.62290.354S11Sixth lens7.12970.7471.57037.4S12−2.90000.534S13Seventh lens−16.86060.3801.53755.7S141.78780.225S15FilterInfinity0.1101.51964.2S16Infinity0.745S17Imaging planeInfinity0.000

TABLE 6Surface No.S1S2S3S4S5S6S7K−2.09E+00−5.26E+011.60E+016.77E+00−1.00E+00−1.00E+00−1.00E+004th order2.53E−02−2.23E−02−4.46E−02−4.44E−02−9.60E−03−8.12E−03−8.60E−02coefficient6th order8.40E−021.30E−01−2.93E−021.68E−01−1.35E−02−2.74E−01−1.30E−01coefficient8th order−4.42E−01−7.06E−017.89E−01−5.40E−01−1.67E−012.76E+001.72E+00coefficient10th order1.50E+002.53E+00−4.72E+00−7.18E−012.01E+00−1.71E+01−1.09E+01coefficient12th order−3.49E+00−6.09E+001.73E+011.64E+01−1.06E+017.08E+014.21E+01coefficient14th order5.76E+001.02E+01−4.22E+01−7.86E+013.56E+01−2.06E+02−1.09E+02coefficient16th order−6.94E+00−1.22E+017.14E+012.13E+02−8.30E+014.33E+021.99E+02coefficient18th order6.18E+001.05E+01−8.50E+01−3.76E+021.40E+02−6.65E+02−2.56E+02coefficient20th order−4.07E+00−6.57E+007.17E+014.53E+02−1.70E+027.45E+022.36E+02coefficient22nd order1.95E+002.94E+00−4.25E+01−3.76E+021.48E+02−6.02E+02−1.53E+02coefficient24th order−6.66E−01−9.23E−011.73E+012.12E+02−9.00E+013.41E+026.87E+01coefficient26th order1.52E−011.92E−01−4.61E+00−7.77E+013.62E+01−1.28E+02−2.01E+01coefficient28th order−2.08E−02−2.39E−027.21E−011.67E+01−8.62E+002.88E+013.45E+00coefficient30th order1.29E−031.34E−03−5.03E−02−1.59E+009.21E−01−2.91E+00−2.64E−01coefficientSurface No.S8S9S10S11S12S13S14K0.00E+00−3.52E+010.00E+006.36E+00−1.45E+011.47E+01−8.68E+004th order−1.12E−01−1.77E−01−2.29E−01−2.73E−031.08E−02−1.95E−01−1.16E−01coefficient6th order2.22E−019.42E−021.15E−01−4.52E−02−1.52E−021.25E−017.73E−02coefficient8th order−1.18E+003.25E−02−3.69E−036.47E−023.88E−02−5.34E−02−3.98E−02coefficient10th order5.31E+00−6.85E−02−1.02E−01−6.50E−02−3.72E−021.66E−021.53E−02coefficient12th order−1.73E+01−3.24E−011.27E−014.14E−021.92E−02−3.78E−03−4.36E−03coefficient14th order3.93E+011.22E+00−7.42E−02−1.76E−02−6.38E−036.34E−049.22E−04coefficient16th order−6.35E+01−2.11E+001.60E−024.97E−031.46E−03−7.89E−05−1.44E−04coefficient18th order7.34E+012.31E+006.64E−03−9.05E−04−2.36E−047.34E−061.64E−05coefficient20th order−6.08E+01−1.73E+00−6.14E−031.02E−042.70E−05−5.10E−07−1.38E−06coefficient22nd order3.58E+018.96E−012.15E−03−6.39E−06−2.18E−062.61E−088.34E−08coefficient24th order−1.46E+01−3.18E−01−4.30E−041.72E−071.20E−07−9.65E−10−3.55E−09coefficient26th order3.91E+007.36E−025.10E−050.00E+00−4.30E−092.44E−111.00E−10coefficient28th order−6.19E−01−1.00E−02−3.37E−060.00E+009.01E−11−3.78E−13−1.69E−12coefficient30th order4.37E−026.03E−049.54E−080.00E+00−8.36E−132.72E−151.29E−14coefficient

An imaging lens system according to a fourth example will be described with reference toFIG.7.

An imaging lens system400includes a first lens410, a second lens420, a third lens430, a fourth lens440, a fifth lens450, a sixth lens460, and a seventh lens470.

The first lens410has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens420has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens430has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens440has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens450has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens450. The sixth lens460has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens460. The seventh lens470has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens470.

The imaging lens system400may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens470and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens410to the seventh lens470is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system400configured as above may exhibit aberration characteristics as illustrated inFIG.8. Tables 7 and 8 illustrate lens characteristics and aspheric values of the imaging lens system400.

TABLE 7Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90860.7161.54656.0S26.55380.060S3Second lens6.02110.2201.68918.2S43.82920.238S5Third lens20.20620.3081.53755.7S6−25.33030.251S7Fourth lens−35.05420.2721.67919.2S884.14810.375S9Fifth lens15.00000.2751.64124.0S105.97210.336S11Sixth lens7.10840.7301.57037.4S12−3.03700.530S13Seventh lens−18.76400.3801.53755.7S141.83940.237S15FilterInfinity0.1101.51964.2S16Infinity0.763S17Imaging planeInfinity0.000

TABLE 8Surface No.S1S2S3S4S5S6S7K−2.00E+00−4.66E+011.54E+017.00E+00−1.00E+00−1.00E+00−1.00E+004th order3.64E−02−1.13E−02−3.94E−02−1.70E−021.39E−02−3.37E−02−1.21E−01coefficient6th order−4.18E−023.28E−022.62E−02−2.95E−02−3.88E−019.29E−024.93E−01coefficient8th order2.72E−01−2.51E−01−5.69E−033.69E−013.86E+00−2.29E−01−3.25E+00coefficient10th order−1.01E+001.17E+001.31E−01−1.80E+00−2.51E+01−9.72E−011.40E+01coefficient12th order2.40E+00−3.28E+00−5.61E−016.11E+001.12E+021.03E+01−4.11E+01coefficient14th order−3.86E+006.06E+001.19E+00−1.57E+01−3.51E+02−4.18E+018.42E+01coefficient16th order4.31E+00−7.76E+00−1.58E+003.11E+017.85E+021.03E+02−1.22E+02coefficient18th order−3.38E+007.06E+001.44E+00−4.77E+01−1.27E+03−1.71E+021.27E+02coefficient20th order1.85E+00−4.60E+00−9.36E−015.54E+011.48E+031.98E+02−9.45E+01coefficient22nd order−6.81E−012.13E+004.46E−01−4.73E+01−1.23E+03−1.59E+024.95E+01coefficient24th order1.58E−01−6.83E−01−1.54E−012.84E+017.09E+028.80E+01−1.78E+01coefficient26th order−1.94E−021.45E−013.66E−02−1.12E+01−2.70E+02−3.19E+014.14E+00coefficient28th order4.73E−04−1.81E−02−5.24E−032.63E+006.10E+016.80E+00−5.64E−01coefficient30th order9.68E−051.02E−033.30E−04−2.73E−01−6.17E+00−6.48E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+001.58E+010.00E+006.60E+00−1.37E+011.66E+01−8.71E+004th order−9.76E−02−1.52E−01−1.83E−017.28E−034.29E−02−1.57E−01−9.80E−02coefficient6th order3.13E−013.22E−029.49E−02−5.25E−02−3.36E−021.02E−016.25E−02coefficient8th order−2.03E+001.03E−01−6.00E−026.12E−024.92E−02−4.99E−02−3.31E−02coefficient10th order9.13E+001.63E−016.92E−02−6.07E−02−5.35E−021.72E−021.32E−02coefficient12th order−2.83E+01−1.70E+00−8.67E−024.04E−023.38E−02−4.02E−03−3.97E−03coefficient14th order6.12E+014.75E+007.52E−02−1.82E−02−1.38E−026.48E−048.96E−04coefficient16th order−9.47E+01−7.76E+00−4.31E−025.45E−033.81E−03−7.34E−05−1.50E−04coefficient18th order1.06E+028.42E+001.69E−02−1.05E−03−7.34E−045.89E−061.85E−05coefficient20th order−8.58E+01−6.29E+00−4.62E−031.24E−049.89E−05−3.33E−07−1.66E−06coefficient22nd order4.98E+013.26E+008.84E−04−8.20E−06−9.27E−061.30E−081.06E−07coefficient24th order−2.01E+01−1.15E+00−1.16E−042.31E−075.91E−07−3.32E−10−4.72E−09coefficient26th order5.37E+002.64E−019.99E−060.00E+00−2.44E−085.08E−121.38E−10coefficient28th order−8.51E−01−3.55E−02−5.06E−070.00E+005.89E−10−3.80E−14−2.39E−12coefficient30th order6.04E−022.12E−031.14E−080.00E+00−6.29E−127.14E−171.84E−14coefficient

An imaging lens system according to a fifth example will be described with reference toFIG.9.

An imaging lens system500includes a first lens510, a second lens520, a third lens530, a fourth lens540, a fifth lens550, a sixth lens560, and a seventh lens570.

The first lens510has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens520has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens530has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens540has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens550has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens550. The sixth lens560has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens560. The seventh lens570has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens570.

The imaging lens system500may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens570and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens510to the seventh lens570is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system500configured as above may exhibit aberration characteristics as illustrated inFIG.10. Tables 9 and 10 illustrate lens characteristics and aspheric values of the imaging lens system500.

TABLE 9Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90530.7101.54656.1S26.50670.061S3Second lens6.02060.2201.68918.2S43.83020.237S5Third lens19.90000.3081.64223.9S6−25.43800.254S7Fourth lens−35.05420.2731.68019.2S874.15640.372S9Fifth lens15.00000.2801.57137.4S106.03980.338S11Sixth lens7.11290.7261.54756.1S12−3.04900.531S13Seventh lens−19.04280.3801.54756.1S141.84100.237S15FilterInfinity0.1101.51964.2S16Infinity0.763S17Imaging planeInfinity0.000

TABLE 10Surface No.S1S2S3S4S5S6S7K−2.01E+00−4.70E+011.54E+017.00E+00−1.00E+00−1.00E+00−1.00E+004th order3.73E−02−1.03E−02−4.00E−02−1.73E−021.39E−02−3.33E−02−1.21E−01coefficient6th order−4.74E−022.84E−023.39E−02−3.27E−02−3.83E−018.96E−024.93E−01coefficient8th order3.12E−01−2.17E−01−6.30E−024.53E−013.76E+00−1.69E−01−3.25E+00coefficient10th order−1.20E+001.00E+003.90E−01−2.62E+00−2.41E+01−1.42E+001.40E+01coefficient12th order2.97E+00−2.83E+00−1.38E+001.06E+011.06E+021.22E+01−4.11E+01coefficient14th order−5.04E+005.24E+003.02E+00−3.13E+01−3.27E+02−4.66E+018.42E+01coefficient16th order6.06E+00−6.74E+00−4.49E+006.82E+017.24E+021.11E+02−1.22E+02coefficient18th order−5.23E+006.17E+004.74E+00−1.10E+02−1.16E+03−1.78E+021.27E+02coefficient20th order3.25E+00−4.05E+00−3.61E+001.28E+021.34E+031.98E+02−9.45E+01coefficient22nd order−1.43E+001.89E+001.97E+00−1.08E+02−1.10E+03−1.53E+024.95E+01coefficient24th order4.39E−01−6.12E−01−7.52E−016.29E+016.32E+028.07E+01−1.78E+01coefficient26th order−8.82E−021.31E−011.89E−01−2.41E+01−2.39E+02−2.76E+014.14E+00coefficient28th order1.04E−02−1.66E−02−2.81E−025.47E+005.36E+015.50E+00−5.64E−01coefficient30th order−5.49E−049.40E−041.85E−03−5.52E−01−5.39E+00−4.83E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+001.67E+010.00E+006.59E+00−1.37E+011.72E+01−8.75E+004th order−9.93E−02−1.54E−01−1.82E−016.30E−034.31E−02−1.55E−01−9.56E−02coefficient6th order3.37E−016.30E−029.72E−02−4.96E−02−3.23E−029.96E−025.93E−02coefficient8th order−2.23E+00−7.30E−02−6.87E−025.61E−024.61E−02−4.76E−02−3.07E−02coefficient10th order1.02E+017.82E−018.48E−02−5.47E−02−4.96E−021.61E−021.21E−02coefficient12th order−3.16E+01−3.16E+00−1.03E−013.60E−023.09E−02−3.68E−03−3.62E−03coefficient14th order6.87E+017.16E+008.69E−02−1.62E−02−1.24E−025.80E−048.23E−04coefficient16th order−1.06E+02−1.06E+01−4.86E−024.87E−033.41E−03−6.40E−05−1.39E−04coefficient18th order1.19E+021.09E+011.86E−02−9.43E−04−6.49E−044.94E−061.73E−05coefficient20th order−9.61E+01−7.83E+00−4.99E−031.12E−048.66E−05−2.64E−07−1.56E−06coefficient22nd order5.56E+013.94E+009.36E−04−7.43E−06−8.03E−069.37E−091.01E−07coefficient24th order−2.24E+01−1.36E+00−1.21E−042.10E−075.07E−07−2.00E−10−4.50E−09coefficient26th order5.97E+003.08E−011.02E−050.00E+00−2.07E−081.85E−121.32E−10coefficient28th order−9.43E−01−4.09E−02−5.07E−070.00E+004.93E−109.28E−15−2.29E−12coefficient30th order6.68E−022.42E−031.13E−080.00E+00−5.21E−12−2.43E−161.77E−14coefficient

An imaging lens system according to a sixth example will be described with reference toFIG.11.

An imaging lens system600includes a first lens610, a second lens620, a third lens630, a fourth lens640, a fifth lens650, a sixth lens660, and a seventh lens670.

The first lens610has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens620has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens630has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens640has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens650has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens650. The sixth lens660has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens660. The seventh lens670has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens670.

The imaging lens system600may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens670and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens610to the seventh lens670is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system600configured as above may exhibit aberration characteristics as illustrated inFIG.12. Tables 11 and 12 illustrate lens characteristics and aspheric values of the imaging lens system600.

TABLE 11Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90390.7071.54656.1S26.48260.061S3Second lens6.01710.2201.68918.2S43.82620.236S5Third lens19.50000.3081.64223.9S6−25.59300.255S7Fourth lens−35.05420.2741.68019.2S870.31500.370S9Fifth lens15.00000.2811.57137.4S106.07080.340S11Sixth lens7.11510.7251.54756.1S12−3.05520.531S13Seventh lens−19.18810.3801.54756.1S141.84090.237S15FilterInfinity0.1101.51964.2S16Infinity0.763S17Imaging planeInfinity0.000

TABLE 12Surface No.S1S2S3S4S5S6S7K−2.02E+00−4.71E+011.54E+017.00E+00−1.00E+00−1.00E+00−1.00E+004th order3.79E−02−9.25E−03−3.98E−02−1.72E−021.23E−02−3.30E−02−1.21E−01coefficient6th order−5.08E−021.79E−022.88E−02−3.66E−02−3.57E−019.89E−024.93E−01coefficient8th order3.30E−01−1.54E−01−3.27E−024.93E−013.51E+00−3.34E−01−3.25E+00coefficient10th order−1.26E+007.73E−012.98E−01−2.88E+00−2.26E+01−1.88E−021.40E+01coefficient12th order3.12E+00−2.27E+00−1.24E+001.18E+019.94E+014.92E+00−4.11E+01coefficient14th order−5.30E+004.32E+002.98E+00−3.52E+01−3.09E+02−2.15E+018.42E+01coefficient16th order6.39E+00−5.66E+00−4.78E+007.76E+016.86E+025.05E+01−1.22E+02coefficient18th order−5.55E+005.26E+005.39E+00−1.25E+02−1.10E+03−7.49E+011.27E+02coefficient20th order3.48E+00−3.50E+00−4.33E+001.48E+021.28E+037.26E+01−9.45E+01coefficient22nd order−1.56E+001.65E+002.47E+00−1.24E+02−1.06E+03−4.51E+014.95E+01coefficient24th order4.86E−01−5.42E−01−9.77E−017.28E+016.10E+021.63E+01−1.78E+01coefficient26th order−1.00E−011.17E−012.53E−01−2.80E+01−2.32E+02−2.30E+004.14E+00coefficient28th order1.22E−02−1.50E−02−3.85E−026.34E+005.21E+01−3.82E−01−5.64E−01coefficient30th order−6.71E−048.58E−042.59E−03−6.41E−01−5.26E+001.31E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+001.92E+010.00E+006.59E+00−1.36E+011.73E+01−8.68E+004th order−1.02E−01−1.55E−01−1.82E−016.62E−034.41E−02−1.54E−01−9.57E−02coefficient6th order3.56E−016.23E−029.78E−02−5.15E−02−3.41E−029.77E−025.90E−02coefficient8th order−2.34E+00−4.58E−02−6.90E−026.00E−024.81E−02−4.58E−02−3.03E−02coefficient10th order1.06E+016.47E−018.55E−02−5.87E−02−5.07E−021.52E−021.18E−02coefficient12th order−3.29E+01−2.80E+00−1.05E−013.85E−023.12E−02−3.42E−03−3.52E−03coefficient14th order7.13E+016.57E+008.91E−02−1.72E−02−1.24E−025.29E−047.95E−04coefficient16th order−1.10E+02−9.97E+00−5.01E−025.12E−033.36E−03−5.68E−05−1.34E−04coefficient18th order1.23E+021.04E+011.93E−02−9.86E−04−6.35E−044.23E−061.66E−05coefficient20th order−9.99E+01−7.58E+00−5.17E−031.17E−048.40E−05−2.13E−07−1.49E−06coefficient22nd order5.78E+013.87E+009.68E−04−7.72E−06−7.73E−066.69E−099.60E−08coefficient24th order−2.33E+01−1.35E+00−1.24E−042.18E−074.84E−07−1.01E−10−4.28E−09coefficient26th order6.21E+003.08E−011.05E−050.00E+00−1.96E−08−5.52E−131.25E−10coefficient28th order−9.82E−01−4.12E−02−5.18E−070.00E+004.65E−104.43E−14−2.17E−12coefficient30th order6.96E−022.45E−031.15E−080.00E+00−4.87E−12−4.74E−161.68E−14coefficient

An imaging lens system according to a seventh example will be described with reference toFIG.13.

An imaging lens system700includes a first lens710, a second lens720, a third lens730, a fourth lens740, a fifth lens750, a sixth lens760, and a seventh lens770.

The first lens710has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens720has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens730has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens740has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens750has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens750. The sixth lens760has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens760. The seventh lens770has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens770.

The imaging lens system700may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens770and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens710to the seventh lens770is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system700configured as above may exhibit aberration characteristics as illustrated inFIG.14. Tables 13 and 14 illustrate lens characteristics and aspheric values of the imaging lens system700.

TABLE 13Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90180.7091.54656.0S26.43460.059S3Second lens5.89710.2101.68918.2S43.79490.240S5Third lens19.00000.3061.53755.7S6−28.22730.254S7Fourth lens−40.00000.2761.67919.2S861.31540.371S9Fifth lens15.00000.2831.64124.0S106.03390.339S11Sixth lens7.09270.7251.57037.4S12−3.07980.532S13Seventh lens−19.38900.3851.53755.7S141.85500.238S15FilterInfinity0.1101.51964.2S16Infinity0.762S17Imaging planeInfinity0.000

TABLE 14Surface No.S1S2S3S4S5S6S7K−2.00E+00−4.63E+011.48E+016.87E+00−1.00E+00−1.00E+00−1.00E+004th order3.79E−02−9.25E−03−4.04E−02−1.74E−021.24E−02−3.35E−02−1.21E−01coefficient6th order−5.08E−021.79E−022.94E−02−3.71E−02−3.60E−011.01E−014.93E−01coefficient8th order3.29E−01−1.54E−01−3.36E−025.01E−013.55E+00−3.44E−01−3.25E+00coefficient10th order−1.26E+007.74E−013.08E−01−2.93E+00−2.29E+01−1.95E−021.40E+01coefficient12th order3.11E+00−2.27E+00−1.29E+001.20E+011.01E+025.15E+00−4.11E+01coefficient14th order−5.28E+004.32E+003.13E+00−3.62E+01−3.15E+02−2.27E+018.42E+01coefficient16th order6.37E+00−5.66E+00−5.05E+008.00E+017.02E+025.36E+01−1.22E+02coefficient18th order−5.53E+005.26E+005.72E+00−1.30E+02−1.13E+03−8.00E+011.27E+02coefficient20th order3.46E+00−3.50E+00−4.63E+001.54E+021.31E+037.81E+01−9.45E+01coefficient22nd order−1.55E+001.65E+002.66E+00−1.30E+02−1.09E+03−4.89E+014.95E+01coefficient24th order4.83E−01−5.43E−01−1.06E+007.63E+016.30E+021.78E+01−1.78E+01coefficient26th order−9.95E−021.17E−012.76E−01−2.94E+01−2.40E+02−2.53E+004.14E+00coefficient28th order1.22E−02−1.50E−02−4.23E−026.70E+005.41E+01−4.23E−01−5.64E−01coefficient30th order−6.66E−048.60E−042.87E−03−6.79E−01−5.47E+001.46E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+002.22E+010.00E+006.54E+00−1.35E+011.78E+01−8.70E+004th order−1.02E−01−1.56E−01−1.82E−016.63E−034.41E−02−1.54E−01−9.55E−02coefficient6th order3.55E−016.29E−029.79E−02−5.15E−02−3.42E−029.72E−025.88E−02coefficient8th order−2.33E+00−4.63E−02−6.92E−026.02E−024.81E−02−4.55E−02−3.01E−02coefficient10th order1.06E+016.56E−018.57E−02−5.89E−02−5.07E−021.51E−021.17E−02coefficient12th order−3.28E+01−2.85E+00−1.06E−013.86E−023.12E−02−3.39E−03−3.49E−03coefficient14th order7.11E+016.70E+008.93E−02−1.72E−02−1.24E−025.23E−047.87E−04coefficient16th order−1.10E+02−1.02E+01−5.03E−025.14E−033.37E−03−5.61E−05−1.32E−04coefficient18th order1.23E+021.07E+011.93E−02−9.91E−04−6.36E−044.17E−061.64E−05coefficient20th order−9.96E+01−7.80E+00−5.19E−031.17E−048.41E−05−2.09E−07−1.47E−06coefficient22nd order5.76E+013.99E+009.73E−04−7.78E−06−7.75E−066.57E−099.44E−08coefficient24th order−2.32E+01−1.40E+00−1.25E−042.20E−074.85E−07−9.93E−11−4.20E−09coefficient26th order6.19E+003.20E−011.05E−050.00E+00−1.97E−08−5.41E−131.23E−10coefficient28th order−9.78E−01−4.29E−02−5.21E−070.00E+004.66E−104.33E−14−2.12E−12coefficient30th order6.92E−022.56E−031.15E−080.00E+00−4.88E−12−4.63E−161.64E−14coefficient

An imaging lens system according to an eighth example will be described with reference toFIG.15.

An imaging lens system800includes a first lens810, a second lens820, a third lens830, a fourth lens840, a fifth lens850, a sixth lens860, and a seventh lens870.

The first lens810has positive refractive power, and has a convex object-side surface and a concave image-side surface. The second lens820has negative refractive power, and has a convex object-side surface and a concave image-side surface. The third lens830has positive refractive power, and has a convex object-side surface and a convex image-side surface. The fourth lens840has negative refractive power, and has a concave object-side surface and a concave image-side surface. The fifth lens850has negative refractive power, and has a convex object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the fifth lens850. The sixth lens860has positive refractive power, and has a convex object-side surface and a convex image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the sixth lens860. The seventh lens870has negative refractive power, and has a concave object-side surface and a concave image-side surface. In addition, an inflection point is formed on the object-side surface and the image-side surface of the seventh lens870.

The imaging lens system800may further include a filter IF, and an imaging plane IP. The filter IF may be disposed between the seventh lens870and the imaging plane IP. The imaging plane IP may be formed in a position in which light incident from the first lens810to the seventh lens870is formed. For example, the imaging plane IP may be formed on one surface of the image sensor IS of the camera module or inside the image sensor IS.

The imaging lens system800configured as above may exhibit aberration characteristics as illustrated inFIG.16. Tables 15 and 16 illustrate lens characteristics and aspheric values of the imaging lens system800.

TABLE 15Radius ofRefractiveAbbeSurface No.ReferencecurvatureThickness/distanceindexnumberS1First lens1.90330.7151.54656.1S26.39380.057S3Second lens5.78660.2001.68918.2S43.76990.243S5Third lens18.00000.3041.64223.9S6−32.24220.256S7Fourth lens−45.00000.2761.68019.2S856.45770.370S9Fifth lens15.00000.2841.57137.4S105.98890.338S11Sixth lens7.05290.7251.54756.1S12−3.09420.534S13Seventh lens−19.64240.3881.54756.1S141.85850.260S15FilterInfinity0.1101.51964.2S16Infinity0.740S17ImagingInfinity−0.011plane

TABLE 16Surface No.S1S2S3S4S5S6S7K−1.97E+00−4.52E+011.41E+016.66E+00−1.00E+00−1.00E+00−1.00E+004th order3.74E−02−9.14E−03−4.06E−02−1.73E−021.24E−02−3.37E−02−1.21E−01coefficient6th order−4.98E−021.75E−022.96E−02−3.69E−02−3.57E−011.02E−014.93E−01coefficient18th order3.21E−01−1.51E−01−3.39E−024.99E−013.52E+00−3.47E−01−3.25E+00coefficient10th order−1.22E+007.50E−013.12E−01−2.91E+00−2.26E+01−1.97E−021.40E+01coefficient12th order3.00E+00−2.19E+00−1.31E+001.20E+019.98E+015.22E+00−4.11E+01coefficient14th order−5.06E+004.14E+003.18E+00−3.59E+01−3.10E+02−2.30E+018.42E+01coefficient16th order6.06E+00−5.39E+00−5.15E+007.93E+016.90E+025.45E+01−1.22E+02coefficient18th order−5.23E+004.98E+005.85E+00−1.29E+02−1.11E+03−8.16E+011.27E+02coefficient20th order3.26E+00−3.29E+00−4.75E+001.52E+021.29E+037.99E+01−9.45E+01coefficient22nd order−1.45E+001.54E+002.74E+00−1.28E+02−1.07E+03−5.01E+014.95E+01coefficient24th order4.49E−01−5.03E−01−1.09E+007.52E+016.14E+021.83E+01−1.78E+01coefficient26th order−9.19E−021.08E−012.85E−01−2.90E+01−2.33E+02−2.60E+004.14E+00coefficient28th order1.11E−02−1.38E−02−4.38E−026.59E+005.25E+01−4.37E−01−5.64E−01coefficient30th order−6.07E−047.83E−042.97E−03−6.67E−01−5.30E+001.51E−013.40E−02coefficientSurface No.S8S9S10S11S12S13S14K0.00E+002.58E+010.00E+006.46E+00−1.36E+011.83E+01−8.69E+004th order−1.02E−01−1.56E−01−1.83E−016.66E−034.42E−02−1.54E−01−9.52E−02coefficient6th order3.55E−016.34E−029.82E−02−5.19E−02−3.43E−029.68E−025.85E−02coefficient8th order−2.34E+00−4.68E−02−6.95E−026.06E−024.84E−02−4.52E−02−2.99E−02coefficient10th order1.06E+016.65E−018.62E−02−5.94E−02−5.10E−021.50E−021.16E−02coefficient12th order−3.29E+01−2.89E+00−1.06E−013.91E−023.15E−02−3.36E−03−3.46E−03coefficient14th order7.13E+016.83E+009.01E−02−1.75E−02−1.25E−025.18E−047.79E−04coefficient16th order−1.10E+02−1.04E+01−5.08E−025.23E−033.40E−03−5.55E−05−1.31E−04coefficient18th order1.23E+021.09E+011.96E−02−1.01E−03−6.43E−044.12E−061.62E−05coefficient20th order−9.98E+01−8.02E+00−5.25E−031.20E−048.53E−05−2.06E−07−1.45E−06coefficient22nd order5.78E+014.11E+009.86E−04−7.95E−06−7.86E−066.47E−099.29E−08coefficient24th order−2.33E+01−1.45E+00−1.27E−042.25E−074.93E−07−9.76E−11−4.13E−09coefficient26th order6.21E+003.31E−011.07E−050.00E+00−2.00E−08−5.30E−131.21E−10coefficient28th order−9.81E−01−4.46E−02−5.30E−070.00E+004.75E−104.24E−14−2.08E−12coefficient30th order6.95E−022.67E−031.17E−080.00E+00−4.98E−12−4.53E−161.60E−14coefficient

Tables 17 to 19 illustrate optical characteristic values and conditional expressional values of an imaging lens system according to first to eighth examples.

TABLE 17FirstSecondThirdFourthReferenceexampleexampleexampleexamplef5.05005.05005.05005.0500f14.68084.67104.59434.6743f2−15.9625−15.9213−14.1533−15.9148f320.994621.189919.632620.9751f4−35.9020−36.8248−22.1166−36.4166f5−16.0293−15.4644−20.8986−15.6639f63.83663.82013.71243.8283f7−3.0850−3.1046−2.9881−3.0987TTL5.79945.80025.79955.8002BFL1.10941.11021.08011.1102f number1.9301.9201.9301.920IMG HT5.1105.1105.1105.110FOV88.3088.0088.3088.00FifthSixthSeventhEighthReferenceexampleexampleexampleexamplef5.05005.05005.05005.0500f14.67674.67864.68264.6962f2−15.9298−15.9000−16.1039−16.3589f320.836220.653721.189721.5507f4−35.0255−34.4205−35.6186−36.8446f5−15.9665−16.1057−15.9424−15.7446f63.83893.84463.86253.8686f7−3.1056−3.1075−3.1321−3.1411TTL5.80025.80025.80035.7890BFL1.11021.11021.11031.0990f number2.0801.9301.9301.930IMG HT5.1105.1105.1105.110FOV88.1088.1088.1088.10

TABLE 18ConditionalFirstSecondThirdFourthexpressionexampleexampleexampleexampleTTL/2ImgHT0.56750.56750.56750.5675f1/f0.92690.92490.90980.9256V1-V237.800037.800036.800037.8000V1-V30.30000.30000.30000.3000V1-V532.000032.000032.000032.0000f2/f−3.1609−3.1527−2.8026−3.1514f3/f4.15744.19603.88764.1535f4/f−7.1093−7.2920−4.3795−7.2112f5/f−3.1741−3.0623−4.1383−3.1018f6/f0.75970.75640.73510.7581f7/f−0.6109−0.6148−0.5917−0.6136TTL/f1.14841.14861.14841.1486|f1/f2|0.29320.29340.32460.2937f2/f3−0.7603−0.7514−0.7209−0.7587BFL/f0.21970.21980.21390.2198D12/f0.01180.01200.01760.0120D12/D230.25380.25480.34530.2541D23/D340.94010.95970.85880.9471D56/D670.63630.62840.66280.6338

TABLE 19ConditionalFifthSixthSeventhEighthexpressionexampleexampleexampleexampleTTL/2ImgHT0.56750.56750.56750.5664f1/f0.92610.92650.92730.9299V1-V237.900037.900037.800037.9000V1-V332.200032.20000.300032.2000V1-V518.700018.700032.000018.7000f2/f−3.1544−3.1485−3.1889−3.2394f3/f4.12604.08984.19604.2675f4/f−6.9357−6.8159−7.0532−7.2960f5/f−3.1617−3.1893−3.1569−3.1177f6/f0.76020.76130.76480.7661f7/f−0.6150−0.6154−0.6202−0.6220TTL/f1.14861.14861.14861.1463|f1/f2|0.29360.29430.29080.2871f2/f3−0.7645−0.7698−0.7600−0.7591BFL/f0.21980.21980.21990.2176D12/f0.01210.01220.01180.0113D12/D230.25710.26020.24770.2351D23/D340.93100.92520.94320.9487D56/D670.63670.63920.63680.6330

As set forth above, according to the various examples, an imaging lens system that can be mounted in a thinned portable electronic device may be provided.

While this disclosure includes specific examples, it will be apparent to one of ordinary skill in the art that various changes in form and details may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only, and not for purposes of limitation. Descriptions of features or aspects in each example are to be considered as being applicable to similar features or aspects in other examples. Suitable results may be achieved if the described techniques are performed to have a different order, and/or if components in a described system, architecture, device, or circuit are combined in a different manner, and/or replaced or supplemented by other components or their equivalents. Therefore, the scope of the disclosure is defined not by the detailed description, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be construed as being included in the disclosure.