# Patent

## Title
Optical image capturing system

## Abstract

A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In the order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power; a fifth lens with refractive power; a sixth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

## Background
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit of Taiwan Patent Application No. 105110136, filed on Mar. 30, 2016, in the Taiwan Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present disclosure relates to an optical image capturing system, and more particularly to a compact optical image capturing system which can be applied to electronic products.
2. Description of the Related Art
In recent years, with the rise of portable electronic devices having camera functionalities, the demand for an optical image capturing system is raised gradually. The image sensing device of ordinary photographing camera is commonly selected from charge coupled device (CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor). In addition, as advanced semiconductor manufacturing technology enables the minimization of pixel size of the image sensing device, the development of the optical image capturing system directs towards the field of high pixels. Therefore, the requirement for high imaging quality is rapidly raised.
The traditional optical image capturing system of a portable electronic device comes with different designs, including a fourth-lens or a fifth-lens design. However, because of the higher pixels in portable electronic devices with camera and because of the requirement for a large aperture of an end user, e.g. functionalities of micro filming and night view, the optical image capturing system in prior arts cannot meet the advanced requirement of the photography and filming.
Therefore, how to effectively increase the amount of light admitted into the optical lenses, and further improves the quality of the formed image has become quite an important issue.
SUMMARY OF THE INVENTION
The aspect of embodiment of the present disclosure directs to an optical image capturing system and an optical image capturing lens which use combination of refractive powers, convex and concave surfaces of six-piece optical lenses (the convex or concave surface in the disclosure denotes the geometrical shape of an image-side surface or an object-side surface of each lens element at different heights from an optical axis) and elements of insertion mechanism for positioning the lens element to increase the amount of light admitted into the optical image capturing system, and to improve imaging quality for image formation, so as to be applied to minimized electronic products.
The term and its definition to the lens element parameter in the embodiment of the present invention are shown as below for further reference.
The lens element parameter related to a length or a height in the lens element
A maximum height for image formation of the optical image capturing system is denoted by HOI. A height of the optical image capturing system is denoted by HOS. A distance from the object-side surface of the first lens element to the image-side surface of the sixth lens element is denoted by InTL. A distance from an aperture stop (aperture) to an image plane is denoted by InS. A distance from the first lens element to the second lens element is denoted by In12 (example). A central thickness of the first lens element of the optical image capturing system on the optical axis is denoted by TP1 (example).
The lens element parameter related to a material in the lens element
An Abbe number of the first lens element in the optical image capturing system is denoted by NA1 (example). A refractive index of the first lens element is denoted by Nd1 (example).
The lens element parameter related to a view angle in the lens element
A view angle is denoted by AF. Half of the view angle is denoted by HAF. A major light angle is denoted by MRA.
The lens element parameter related to exit/entrance pupil in the lens element
An entrance pupil diameter of the optical image capturing system is denoted by HEP. An optical imaging lens system of the exit pupil of the aperture stop means that after the aperture stop behind the lens group and the image space is formed by the image, the exit pupil diameter is expressed in HXP. A maximum effective half diameter (EHD) of any surface of a single lens element refers to a perpendicular height between an intersection point on the surface of the lens element where the incident light with the maximum view angle in the optical system passes through the outmost edge of the entrance pupil and the optical axis. For example, the maximum effective half diameter of the object-side surface of the first lens element is denoted by EHD 11. The maximum effective half diameter of the image-side surface of the first lens element is denoted by EHD 12. The maximum effective half diameter of the object-side surface of the second lens element is denoted by EHD 21. The maximum effective half diameter of the image-side surface of the second lens element is denoted by EHD 22. The maximum effective half diameters of any surfaces of other lens elements in the optical image capturing system are denoted in the similar way.
The lens element parameter related to assembly structures of the lens elements
The object-side surface of each lens element of the optical system may have a bearing surface of object side depending on the requirement, and the image-side surface thereof has a bearing surface of image side. Depending on the requirement, the bearing surface of object side and the bearing surface of image side of each lens element may be respectively configured to be mutually inserted to the adjacent front lens element and the adjacent rear lens element via the contact surfaces thereof, so as to form a stacked structure (the length of the outline of the contact surface in the radial direction of the lens is denoted by BSL). The stacked structure may be designed as a single-insertion structure based on requirement, e.g. the first lens element has a first bearing surface of image side on the image-side surface thereof, and the second lens element has a second bearing surface of object side on the object-side surface thereof, such that the second bearing surface of object side contacts with the first bearing surface of image side and both of them are inserted to each other. Alternatively, the stacked structure may be designed as a double-insertion structure, e.g. a double-insertion structure is provided on the basis of the single-insertion structure. The second lens element has a second bearing surface of image side, the third lens element has a third bearing surface of object side, and the third bearing surface of object side contacts with the second bearing surface of image side such that both of them are inserted to each other.
Alternatively, the structure can be a triple-insertion structure or a full-insertion structure. An optical image capturing system with seven-piece optical lenses, for example, is provided on the basis of double-insertion structure. The third lens element has a third bearing surface of image side on the image-side surface thereof, the fourth lens element has a fourth bearing surface of object side on the object-side surface thereof, and the fourth bearing surface of object side contacts with the third bearing surface of image side such that both of them are inserted to each other. The fourth lens element has a fourth bearing surface of image side on the image-side surface thereof, the fifth lens element has a fifth bearing surface of object side on the object-side surface thereof, and the fifth bearing surface of object side contacts with the fourth bearing surface of image side such that both of them are inserted to each other. The fifth lens element has a fifth bearing surface of image side on the image-side surface thereof, the sixth lens element has a sixth bearing surface of object side on the object-side surface thereof, and the sixth bearing surface of object side contacts with the fifth bearing surface of image side such that both of them are inserted to each other, The sixth lens element has a bearing surface of image side on the image-side surface thereof, the seventh lens element has a seventh bearing surface of object side on the object-side surface thereof, and the seventh bearing surface of object side contacts with the sixth bearing surface of image side such that both of them are inserted to each other.
Take the full-insertion structure of the aforementioned optical image capturing system with seven-piece lenses for example, the extension lines of the first bearing surface of image side to the seventh bearing surface of image side are extending toward the object side or image plane according to requirement and intersect with the optical axis to form angles IAG, which are respectively represented by IAG1, IAG2, IAG3, IAG4, IAG5, IAG6, IAG7. The first bearing surface of object side to the seventh bearing surface of image side are extending to object side or image side according to requirement and have a cross angle of OAG with the optical axis, which are respectively represented by OAG1, OAG2, OAG3, OAG4, OAG5, OAG6, and OAG7.
The values of the angles IAG and OAG mentioned above should be manipulated manually. Generally, the greater the angles IAG and OAG are, the more the optical image capturing system can be minimized, but it will cause the insertion between one lens element and the other to be less secured. Conversely, if the IAG and OAG have a smaller the angle, the degree of minimization of the optical image capturing system will be smaller, but the insertion between one lens element and another is more secured.
The foregoing stacked structure can effectively prevent the tilting of the assembly of lens elements caused by the lack of precision in the inner wall of the positioning structural element during the assembling of the lens elements in the positioning structural element (e.g. the lens barrel), which will affect the quality of the captured image. Besides, when the optical image capturing system of the present invention is to be minimized, or when the pixels of image sensor in the optical image capturing system are to be minimized, the precision of assembly and bearing between one lens element and another will have high impact on the quality of image formation; whereas the aforementioned stacked structure is able to effectively ensure that the performance of each assembled and borne lens element is close to the designed values.
The lens element parameter related to a depth of the lens element shape
A distance in parallel with an optical axis from a maximum effective diameter position to an axial point on the object-side surface of the sixth lens element is denoted by InRS61 (a depth of the maximum effective half diameter). A distance in parallel with an optical axis from a maximum effective diameter position to an axial point on the image-side surface of the sixth lens element is denoted by InRS62 (the depth of the maximum effective half diameter). The depths of the maximum effective half diameters (sinkage values) of object surfaces and image surfaces of other lens elements are denoted in the similar way.
The lens element parameter related to the lens element shape
A critical point C is a tangent point on a surface of a specific lens element, and the tangent point is tangent to a plane perpendicular to the optical axis and the tangent point cannot be a axial point. Furthermore, a distance perpendicular to the optical axis between a critical point C51 on the object-side surface of the fifth lens element and the optical axis is HVT51 (example). A distance perpendicular to the optical axis between a critical point C52 on the image-side surface of the fifth lens element and the optical axis is HVT52 (example). A distance perpendicular to the optical axis between a critical point C61 on the object-side surface of the sixth lens element and the optical axis is HVT61 (example). A distance perpendicular to the optical axis between a critical point C62 on the image-side surface of the sixth lens element and the optical axis is HVT62 (example). Distances perpendicular to the optical axis between critical points on the object-side surfaces or the image-side surfaces of other lens elements and the optical axis are denoted in the similar way described above.
The object-side surface of the sixth lens element has one inflection point IF611 which is nearest to the optical axis, and the sinkage value of the inflection point IF611 is denoted by SGI611 (example). SGI611 is a horizontal shift distance in parallel with the optical axis from an axial point on the object-side surface of the sixth lens element to the inflection point which is nearest to the optical axis on the object-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF611 and the optical axis is HIF611 (example). The image-side surface of the sixth lens element has one inflection point IF621 which is nearest to the optical axis and the sinkage value of the inflection point IF621 is denoted by SGI621 (example). SGI621 is a horizontal shift distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the inflection point which is nearest to the optical axis on the image-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF621 and the optical axis is HIF621 (example).
The object-side surface of the sixth lens element has one inflection point IF612 which is the second nearest to the optical axis and the sinkage value of the inflection point IF612 is denoted by SGI612 (example). SGI612 is a horizontal shift distance in parallel with the optical axis from an axial point on the object-side surface of the sixth lens element to the inflection point which is the second nearest to the optical axis on the object-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF612 and the optical axis is HIF612 (example). The image-side surface of the sixth lens element has one inflection point IF622 which is the second nearest to the optical axis and the sinkage value of the inflection point IF622 is denoted by SGI622 (example). SGI622 is a horizontal shift distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the inflection point which is the second nearest to the optical axis on the image-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF622 and the optical axis is HIF622 (example).
The object-side surface of the sixth lens element has one inflection point IF613 which is the third nearest to the optical axis and the sinkage value of the inflection point IF613 is denoted by SGI613 (example). SGI613 is a horizontal shift distance in parallel with the optical axis from an axial point on the object-side surface of the sixth lens element to the inflection point which is the third nearest to the optical axis on the object-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF613 and the optical axis is HIF613 (example). The image-side surface of the sixth lens element has one inflection point IF623 which is the third nearest to the optical axis and the sinkage value of the inflection point IF623 is denoted by SGI623 (example). SGI623 is a horizontal shift distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the inflection point which is the third nearest to the optical axis on the image-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF623 and the optical axis is HIF623 (example).
The object-side surface of the sixth lens element has one inflection point IF614 which is the fourth nearest to the optical axis and the sinkage value of the inflection point IF614 is denoted by SGI614 (example). SGI614 is a horizontal shift distance in parallel with the optical axis from an axial point on the object-side surface of the sixth lens element to the inflection point which is the fourth nearest to the optical axis on the object-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF614 and the optical axis is HIF614 (example). The image-side surface of the sixth lens element has one inflection point IF624 which is the fourth nearest to the optical axis and the sinkage value of the inflection point IF624 is denoted by SGI624 (example). SGI624 is a horizontal shift distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the inflection point which is the fourth nearest to the optical axis on the image-side surface of the sixth lens element. A distance perpendicular to the optical axis between the inflection point IF624 and the optical axis is HIF624 (example).
The inflection points on the object-side surfaces or the image-side surfaces of the other lens elements and the distances perpendicular to the optical axis thereof or the sinkage values thereof are denoted in the similar way described above.
The lens element parameter related to aberration
Optical distortion for image formation in the optical image capturing system is denoted by ODT. TV distortion for image formation in the optical image capturing system is denoted by TDT. Further, the range of the aberration offset for the view of image formation may be limited to 50%-100%. An offset of the spherical aberration is denoted by DFS. An offset of the coma aberration is denoted by DFC.
The purpose of the characteristic diagram of Modulation Transfer Function (MTF) of the optical image capturing system is to test and assess the contrast and sharpness of the image formed by the system. The vertical coordinate axis of the characteristic diagram of modulation transfer function represents a contrast transfer rate (values are from 0 to 1). The horizontal coordinate axis represents a spatial frequency (cycles/mm; lp/mm; line pairs per mm). Theoretically, an ideal optical image capturing system can present 100% of the line contrast of a photographed object. However, the values of the contrast transfer rate at the vertical coordinate axis are less than 1 in the actual optical image capturing system. In addition, comparing to the central region, it is generally more difficult to achieve accurate recovery in the peripheral region of formed image. The contrast transfer rates (values of MTF) of spatial frequency of 55 cycles/mm at positions of the optical axis, 0.3 field of view and 0.7 field of view of a visible light spectrum on the image plane are respectively denoted by MTFE0, MTFE3 and MTFE7. The contrast transfer rates (values of MTF) of spatial frequency of 110 cycles/mm at positions of the optical axis, 0.3 field of view and 0.7 field of view on the image plane are respectively denoted by MTFQ0, MTFQ3 and MTFQ7. The contrast transfer rates (values of MTF) of spatial frequency of 220 cycles/mm at positions of the optical axis, 0.3 field of view and 0.7 field of view on the image plane are respectively denoted by MTFH0, MTFH3 and MTFH7. The contrast transfer rates (values of MTF) of spatial frequency of 440 cycles/mm at the positions of optical axis, 0.3 field of view and 0.7 field of view on the image plane are respectively denoted by MTF0, MTF3 and MTF7. The three fields of view described above represent the center, the internal field of view and the external field of view of the lens elements. Thus, they may be used to evaluate whether the performance of a specific optical image capturing system is excellent. The design of the optical image capturing system of the present invention mainly corresponds to a sensing device with pixel size be less than or equal to 1.12 micrometers. Therefore, the quarter spatial frequency, the half spatial frequency (half frequency) and the full spatial frequency (full frequency) of the characteristic diagram of modulation transfer function are at least 110 cycles/mm, 220 cycles/mm and 440 cycles/mm, respectively.
If an optical image capturing system is to capture image with infrared spectrum, such as meeting the requirement for night vision in low light condition, it might apply operation wavelength of 850 nm or 800 nm. As its main function is to recognize silhouette of an object formed in monochrome and shade, high resolution is unnecessary, and thus, a spatial frequency, which is less than 110 cycles/mm, is used to evaluate the functionality of the optical image capturing system, when the optical image capturing system is applied to the infrared spectrum. When the foregoing wavelength of 850 nm is to be focused on the image plane, the contrast transfer rates (values of MTF) with a spatial frequency of 55 cycles/mm at the optical axis, 0.3 field of view and 0.7 field of view on the image plane are respectively denoted by MTFI0, MTFI3 and MTFI7. However, as the difference between infrared wavelength of 850 nm or 800 nm and that of visible light is huge, it is hard to design an optical image capturing system which is capable of focusing on the visible light and the infrared light (dual-mode) simultaneously while achieving certain performance respectively.
The disclosure provides an optical image capturing system, an object-side surface or an image-side surface of the sixth lens element may have inflection points, such that the angle of incidence from each view field to the sixth lens element can be adjusted effectively and the optical distortion and the TV distortion can be corrected as well. Besides, the surfaces of the sixth lens element may have a better optical path adjusting ability to acquire better imaging quality.
The disclosure provides an optical image capturing system, in the order from an object side to an image side, including a first, second, third, fourth, fifth and sixth lens elements as well as an image plane. The first lens element has refractive power and a first bearing surface of image side on the image-side surface thereof. The second lens element has refractive power. The second lens element has a second bearing surface of object side on the object-side surface and a second bearing surface of image side on the image-side surface thereof. The second bearing surface of object side and the first bearing surface of image side contact with each other. The third lens element has refractive power and the fourth lens element has refractive power. The fifth lens element and the sixth lens element have refractive powers. At least one lens element among the first to sixth lens elements has positive refractive power. Focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6 respectively. A focal length of the optical image capturing system is f. An entrance pupil diameter of the optical image capturing system is HEP. A distance on an optical axis from an object-side surface of the first lens element to the image plane is HOS. A distance on the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL. A half of a maximum view angle of the optical image capturing system is HAF. Thicknesses in parallel with the optical axis of the first to sixth lens elements at height of 1⁄2 HEP respectively are ETP1, ETP2, ETP3, ETP4, ETP5 and ETP6. A sum of ETP1 to ETP6 described above is SETP. Thicknesses of the first to sixth lens elements on the optical axis respectively are TP1, TP2, TP3, TP4, TP5 and TP6. A sum of TP1 to TP6 described above is STP. The following conditions are satisfied: 1.0≦f/HEP≦10; 0 deg<HAF≦150 deg; and 0.5≦SETP/STP<1.
The disclosure provides another optical image capturing system, in the order from an object side to an image side, including a first, second, third, fourth, fifth and sixth lens elements as well as an image plane. The first lens element has refractive power and a first bearing surface of image side on the image-side surface thereof. The second lens element has refractive power. The second lens element has a second bearing surface of object side on the object-side surface and a second bearing surface of image side on the image-side surface thereof. The second bearing surface of object side and the first bearing surface of image side contact with each other. The third lens has a refractive power, a third bearing surface of object side on the object-side surface thereof and a third bearing surface of image side on the image-side surface thereof. The third bearing surface of object side and the second bearing surface of image side contact with each other. The fourth lens element has refractive power. Both of the extension lines of the first bearing surface of image side and the second bearing surface of image side may intersect with the optical axis to form angles IAG, which are IAG1 and IAG2 respectively. The extension lines of the second bearing surface of object side and the third bearing surface of object side may intersect with the optical axis to form angles OAG, namely OAG2 and OAG3. The fifth and sixth lens elements have refractive powers. At least one lens element among the first to sixth lens elements has positive refractive power. Focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6, respectively. A focal length of the optical image capturing system is f. An entrance pupil diameter of the optical image capturing system is HEP. A distance on an optical axis from an object-side surface of the first lens element to the image plane is HOS. A distance on the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL A half of a maximum view angle of the optical image capturing system is HAF. A horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to the image plane is ETL. A horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height of 1⁄2 HEP to a coordinate point on the image-side surface of the sixth lens element at height of 1⁄2 HEP is EIN. The following conditions are satisfied: 0 deg<IAG<90 deg; 0 deg<OAG<90 deg; 1.0≦/HEP≦10; 0 deg<HAF<150 deg; 0.2≦EIN/ETL<1.
The disclosure provides another optical image capturing system, in the order from an object side to an image side, including a first, second, third, fourth, fifth and sixth lens elements as well as an image plane. The first lens element has refractive power and a first bearing surface of image side on the image-side surface thereof. The second lens element has refractive power, a second bearing surface of object side on the object-side surface thereof and a second bearing surface of image side on the image-side surface thereof. The second bearing surface of object side and the first bearing surface of image side contact with each other. The third lens has refractive power, a third bearing surface of object side on the object-side surface thereof and a third bearing surface of image side on the image-side surface thereof. The third bearing surface of object side and the second bearing surface of image side contact with each other. The fourth lens element has refractive power, a fourth bearing surface of object side on the object-side surface thereof and a fourth bearing surface of image side on the image-side surface thereof. All of the extension lines of the first bearing surface of image side to the third bearing surface of image side may intersect with the optical axis to form angles IAG, namely IAG1, IAG2 and IAG3. The extension lines of the second bearing surface of object side to the fourth bearing surface of object side may intersect with the optical axis to form angles OAG, which are OAG2, OAG3 and OAG4 respectively. The fifth and sixth lens elements have refractive powers. At least one lens element among the first to the sixth lens elements has positive refractive power. Focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6 respectively. A focal length of the optical image capturing system is f. An entrance pupil diameter of the optical image capturing system is HEP. A distance on an optical axis from an object-side surface of the first lens element to the image plane is HOS. A distance on the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL A half of a maximum view angle of the optical image capturing system is HAF. A horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height of 1⁄2 HEP to the image plane is ETL. A horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height of 1⁄2 HEP to a coordinate point on the image-side surface of the sixth lens element at height of 1⁄2 HEP is EIN. The following conditions are satisfied: 0 deg<IAG<45 deg; 0 deg<OAG≦45 deg; 1.0≦f/HEP≦10.0; 0 deg<HAF≦150 deg and 0.2≦EIN/ETL<1.
A horizontal distance between two adjacent lens elements at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ED. The horizontal distance (ED) described above is in parallel with the optical axis of the optical image capturing system and particularly affects the corrected aberration of common area of each field of view of light and the capability of correcting optical path difference between each field of view of light at the position of 1⁄2 entrance pupil diameter (HEP). The capability of aberration correction may be enhanced if the horizontal distance becomes greater, but the difficulty for manufacturing is also increased and the degree of ‘miniaturization’ to the length of the optical image capturing system is restricted. Thus, it is essential to control the horizontal distance (ED) between two specific adjacent lens elements at height of 1⁄2 entrance pupil diameter (HEP).
In order to enhance the capability of aberration correction and reduce the difficulty for ‘miniaturization’ to the length of the optical image capturing system at the same time, it is particularly necessary to control the ratio relation (ED/IN) of the horizontal distance (ED) between the two adjacent lens elements at height of 1⁄2 entrance pupil diameter (HEP) to the horizontal distance (IN) between the two adjacent lens elements on the optical axis. For example, the horizontal distance between the first lens element and the second lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ED12. The horizontal distance between the first lens element and the second lens element on the optical axis is IN12. The ratio between both of them is ED12/IN12. The horizontal distance between the second lens element and the third lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ED23. The horizontal distance between the second lens element and the third lens element on the optical axis is IN23. The ratio between both of them is ED23/IN23. The ratio relations of the horizontal distances between other two adjacent lens elements in the optical image capturing system at height of 1⁄2 entrance pupil diameter (HEP) to the horizontal distances between the two adjacent lens elements on the optical axis are denoted in the similar way.
A horizontal distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the image plane is EBL. A horizontal distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the image plane is BL. The embodiments of the present invention enhance the capability of aberration correction and reserve space for accommodating other optical elements. The following condition may be satisfied: 0.2≦EBL/BL<1.1. The optical image capturing system may further include a light filtration element. The light filtration element is located between the sixth lens element and the image plane. A distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the light filtration element is EIR. A distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the light filtration element is PIR. The embodiments of the present invention may satisfy the following condition: 0.1≦EIR/PIR≦1.1.
The height of optical system (HOS) may be reduced to achieve the minimization of the optical image capturing system when the absolute value of f1 is larger than f6 (|f1|>f6).
When |f2|+|f3|+|f4|+|f5| and |f1|+|f6| are satisfied with above relations, at least one of the second through fifth lens elements may have weak positive refractive power or weak negative refractive power. The weak refractive power indicates that an absolute value of the focal length of a specific lens element is greater than 10. When at least one of the second through fifth lens elements has the weak positive refractive power, the positive refractive power of the first lens element can be shared, such that the unnecessary aberration will not appear too early. On the contrary, when at least one of the second through fifth lens elements has the weak negative refractive power, the aberration of the optical image capturing system can be corrected and fine tuned.
The sixth lens element may have negative refractive power and a concave image-side surface. Hereby, the back focal length is reduced for keeping the miniaturization, to miniaturize the lens element effectively. In addition, at least one of the object-side surface and the image-side surface of the sixth lens element may have at least one inflection point, such that the angle of incident with incoming light from an off-axis field of view can be suppressed effectively and the aberration in the off-axis field of view can be corrected further.



BRIEF DESCRIPTION OF THE DRAWINGS
The detailed structure, operating principle and effects of the present disclosure will now be described in more details hereinafter with reference to the accompanying drawings that show various embodiments of the present disclosure as follows.
FIG. 1A is a schematic view of the optical image capturing system according to the first embodiment of the present application.
FIG. 1B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the first embodiment of the present application.
FIG. 1C is a characteristic diagram of modulation transfer of a visible light according to the first embodiment of the present application.
FIG. 2A is a schematic view of the optical image capturing system according to the second embodiment of the present application.
FIG. 2B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the second embodiment of the present application.
FIG. 2C is a characteristic diagram of modulation transfer of a visible light according to the second embodiment of the present application.
FIG. 3A is a schematic view of the optical image capturing system according to the third embodiment of the present application.
FIG. 3B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the third embodiment of the present application.
FIG. 3C is a characteristic diagram of modulation transfer of a visible light according to the third embodiment of the present application.
FIG. 4A is a schematic view of the optical image capturing system according to the fourth embodiment of the present application.
FIG. 4B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the fourth embodiment of the present application.
FIG. 4C is a characteristic diagram of modulation transfer of a visible light according to the fourth embodiment of the present application.
FIG. 5A is a schematic view of the optical image capturing system according to the fifth embodiment of the present application.
FIG. 5B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the fifth embodiment of the present application.
FIG. 5C is a characteristic diagram of modulation transfer of a visible light according to the fifth embodiment of the present application.
FIG. 6A is a schematic view of the optical image capturing system according to the sixth embodiment of the present application.
FIG. 6B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion grid of the optical image capturing system in the order from left to right according to the sixth embodiment of the present application.
FIG. 6C is a characteristic diagram of modulation transfer of a visible light according to the sixth embodiment of the present application.
FIG. 7 is a schematic view of the full-insertion structure of the seventh embodiment of the optical image capturing system; the method of assembling the full-insertion structure is applicable to cases of the first embodiment to the sixth embodiment; all of the bearing surfaces of image side, and all of the bearing surfaces of object side are configured to extend toward the object side and intersect with the optical axis to form angles.
FIG. 8 is a schematic view of the full-insertion structure of the eighth embodiment of the optical image capturing system; the method of assembling the full-insertion structure is applicable to cases of the first embodiment to the sixth embodiment; all of the bearing surfaces of image side, and all of the bearing surfaces of object side are configured to extend toward the image plane and intersect with the optical axis to form angles.



DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Therefore, it is to be understood that the foregoing is illustrative of exemplary embodiments and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed exemplary embodiments, as well as other exemplary embodiments, are intended to be included within the scope of the appended claims. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art. The relative proportions and ratios of elements in the drawings may be exaggerated or diminished in size for the sake of clarity and convenience in the drawings, and such arbitrary proportions are only illustrative and not limiting in any way. The same reference numbers are used in the drawings and the description to refer to the same or like parts.
It will be understood that, although the terms ‘first’, ‘second’, ‘third’, etc., may be used herein to describe various elements, these elements should not be limited by these terms. The terms are used only for the purpose of distinguishing one component from another component. Thus, a first element discussed below could be termed a second element without departing from the teachings of embodiments. As used herein, the term “or” includes any and all combinations of one or more of the associated listed items.
An optical image capturing system, in order from an object side to an image side, includes a first, second, third, fourth, fifth and sixth lens elements with refractive power and an image plane. The optical image capturing system may further include an image sensing device which is disposed on an image plane.
The optical image capturing system may use three sets of wavelengths which are 486.1 nm, 587.5 nm and 656.2 nm, respectively, wherein 587.5 nm is served as the primary reference wavelength and a reference wavelength for retrieving technical features. The optical image capturing system may also use five sets of wavelengths which are 470 nm, 510 nm, 555 nm, 610 nm and 650 nm, respectively, wherein 555 nm is served as the primary reference wavelength and a reference wavelength for retrieving technical features.
A ratio of the focal length f of the optical image capturing system to a focal length fp of each of lens elements with positive refractive power is PPR. A ratio of the focal length f of the optical image capturing system to a focal length fn of each of lens elements with negative refractive power is NPR. A sum of the PPR of all lens elements with positive refractive power is ΣPPR. A sum of the NPR of all lens elements with negative refractive powers is ΣNPR. It is beneficial to control the total refractive power and the total length of the optical image capturing system when following conditions are satisfied: 0.5≦ΣPPR/|ΣNPR|≦15. Preferably, the following condition may be satisfied: 1≦ΣPPR/|NPR|≦3.0.
The optical image capturing system may further include an image sensing device which is disposed on an image plane. Half of a diagonal of an effective detection field of the image sensing device (imaging height or the maximum image height of the optical image capturing system) is HOI. A distance on the optical axis from the object-side surface of the first lens element to the image plane is HOS. The following conditions are satisfied: HOS/HOI≦10 and 0.5≦HOS/f≦10. Preferably, the following conditions may be satisfied: 1≦HOS/HOI≦5 and 1≦HOS/f≦7. Hereby, the miniaturization of the optical image capturing system can be maintained effectively, so as to be carried by lightweight portable electronic devices.
In addition, in the optical image capturing system of the disclosure, according to different requirements, at least one aperture stop may be arranged for reducing stray light and improving the imaging quality.
In the optical image capturing system of the disclosure, the aperture stop may be a front or middle aperture. The front aperture is the aperture stop between a photographed object and the first lens element. The middle aperture is the aperture stop between the first lens element and the image plane. If the aperture stop is the front aperture, a longer distance between the exit pupil and the image plane of the optical image capturing system can be formed, such that more optical elements can be disposed in the optical image capturing system and the efficiency of receiving images of the image sensing device can be raised. If the aperture stop is the middle aperture, the view angle of the optical image capturing system can be expended, such that the optical image capturing system has the same advantage that is owned by wide angle cameras. A distance from the aperture stop to the image plane is InS. The following condition is satisfied: 0.2≦InS/HOS≦1.1. Hereby, features of maintaining the minimization for the optical image capturing system and having wide-angle are available simultaneously.
In the optical image capturing system of the disclosure, a distance from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL. A sum of central thicknesses of all lens elements with refractive power on the optical axis is ΣTP. The following condition is satisfied: 0.1≦ΣTP/InTL≦0.9. Hereby, contrast ratio for the image formation in the optical image capturing system and defect-free rate for manufacturing the lens element can be given consideration simultaneously, and a proper back focal length is provided to dispose other optical components in the optical image capturing system.
A curvature radius of the object-side surface of the first lens element is R1. A curvature radius of the image-side surface of the first lens element is R2. The following condition is satisfied: 0.001≦|R1/R2|≦20. Hereby, the first lens element may have proper strength of the positive refractive power, so as to avoid the longitudinal spherical aberration to increase too fast. Preferably, the following condition may be satisfied: 0.01≦|R1/R2|<10.
A curvature radius of the object-side surface of the sixth lens element is R11. A curvature radius of the image-side surface of the sixth lens element is R12. The following condition is satisfied: −7<(R11−R12)/(R11+R12)<50. Hereby, the astigmatism generated by the optical image capturing system can be corrected beneficially.
A distance between the first lens element and the second lens element on the optical axis is IN12. The following condition is satisfied: IN12/f≦3.0. Hereby, the chromatic aberration of the lens elements can be improved, such that the performance can be increased.
A distance between the fifth lens element and the sixth lens element on the optical axis is IN56. The following condition is satisfied: IN56/f≦0.8. Hereby, the chromatic aberration of the lens elements can be improved, such that the performance can be increased.
Central thicknesses of the first lens element and the second lens element on the optical axis are TP1 and TP2, respectively. The following condition is satisfied: 0.1≦(TP1+IN12)/TP2≦10. Hereby, the sensitivity produced by the optical image capturing system can be controlled, and the performance can be increased.
Central thicknesses of the fifth lens element and the sixth lens element on the optical axis are TP5 and TP6, respectively, and a distance between the aforementioned two lens elements on the optical axis is IN56. The following condition is satisfied: 0.1≦(TP6+IN56)/TP5≦10. Hereby, the sensitivity produced by the optical image capturing system can be controlled and the total height of the optical image capturing system can be reduced.
Central thicknesses of the second lens element, the third lens element and the fourth lens element on the optical axis are TP2, TP3 and TP4, respectively. A distance between the second lens element and the third lens element on the optical axis is IN23. A distance between the third lens element and the fourth lens element on the optical axis is IN34. A distance between the fourth lens element and the fifth lens element on the optical axis is IN45. A distance on the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL The following condition is satisfied: 0.1≦TP4/(IN34+TP4+IN45)<1. Hereby, the aberration generated by the process of moving the incident light can be adjusted slightly layer upon layer, and the total height of the optical image capturing system can be reduced.
In the optical image capturing system of the disclosure, a distance perpendicular to the optical axis between a critical point C61 on the object-side surface of the sixth lens element and the optical axis is HVT61. A distance perpendicular to the optical axis between a critical point C62 on the image-side surface of the sixth lens element and the optical axis is HVT62. A horizontal displacement distance on the optical axis from an axial point on the object-side surface of the sixth lens element to the critical point C61 is SGC61. A horizontal displacement distance on the optical axis from an axial point on the image-side surface of the sixth lens element to the critical point C62 is SGC62. The following conditions may be satisfied: 0 mm≦HVT61≦3 mm, 0 mm<HVT62≦6 mm, 0≦HVT61/HVT62, 0 mm≦|SGC61|≦0.5 mm, 0 mm<|SGC62|≦2 mm and 0<|SGC62|/(|SGC62|+TP6)≦0.9. Hereby, the aberration in the off-axis view field can be corrected.
The optical image capturing system of the disclosure satisfies the following condition: 0.2≦HVT62/HOI≦0.9. Preferably, the following condition may be satisfied: 0.3≦HVT62/HOI≦0.8. Hereby, the aberration of surrounding view field can be corrected.
The optical image capturing system of the disclosure satisfies the following condition: 0≦HVT62/HOS≦0.5. Preferably, the following condition may be satisfied: 0.2≦HVT62/HOS≦0.45. Hereby, the aberration of surrounding view field can be corrected.
In the optical image capturing system of the disclosure, a distance in parallel with an optical axis from an inflection point on the object-side surface of the sixth lens element which is nearest to the optical axis to an axial point on the object-side surface of the sixth lens element is denoted by SGI611. A distance in parallel with an optical axis from an inflection point on the image-side surface of the sixth lens element which is nearest to the optical axis to an axial point on the image-side surface of the sixth lens element is denoted by SGI621. The following conditions are satisfied: 0<SGI611/(SGI611+TP6)=0.9 and 0<SGI621/(SGI621+TP6)≦0.9. Preferably, the following conditions may be satisfied: 0.1≦SGI611/(SGI611+TP6)≦0.6 and 0.1≦SGI621/(SGI621+TP6)≦0.6.
A distance in parallel with the optical axis from the inflection point on the object-side surface of the sixth lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the sixth lens element is denoted by SGI612. A distance in parallel with an optical axis from an inflection point on the image-side surface of the sixth lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the sixth lens element is denoted by SGI622. The following conditions are satisfied: 0<SGI612/(SGI612+TP6)≦0.9 and 0<SGI622/(SGI622+TP6)≦0.9. Preferably, the following conditions may be satisfied: 0.1≦SGI612/(SGI612+TP6)≦0.6 and 0.1≦SGI622/(SGI622+TP6)≦0.6.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is nearest to the optical axis and the optical axis is denoted by HIF611. A distance perpendicular to the optical axis between an inflection point on the image-side surface of the sixth lens element which is nearest to the optical axis and an axial point on the image-side surface of the sixth lens element is denoted by HIF621. The following conditions are satisfied: 0.001 mm≦|HIF611|≦5 mm and 0.001 mm≦HIF621|≦5 mm. Preferably, the following conditions may be satisfied: 0.1 mm≦|HIF611|≦3.5 mm and 1.5 mm≦|HIF621|≦3.5 mm.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF612. A distance perpendicular to the optical axis between an axial point on the image-side surface of the sixth lens element and an inflection point on the image-side surface of the sixth lens element which is the second nearest to the optical axis is denoted by HIF622. The following conditions are satisfied: 0.001 mm≦|HIF612|≦5 mm and 0.001 mm≦HIF622|≦5 mm. Preferably, the following conditions may be satisfied: 0.1 mm≦|HIF622|≦3.5 mm and 0.1 mm≦|HIF612|≦3.5 mm.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the third nearest to the optical axis and the optical axis is denoted by HIF613. A distance perpendicular to the optical axis between an axial point on the image-side surface of the sixth lens element and an inflection point on the image-side surface of the sixth lens element which is the third nearest to the optical axis is denoted by HIF623. The following conditions are satisfied: 0.001 mm≦|HIF613|≦5 mm and 0.001 mm≦|HIF623|≦5 mm. Preferably, the following conditions may be satisfied: 0.1 mm≦|HIF623|≦3.5 mm and 0.1 mm≦|HIF613|≦3.5 mm.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the fourth nearest to the optical axis and the optical axis is denoted by HIF614. A distance perpendicular to the optical axis between an axial point on the image-side surface of the sixth lens element and an inflection point on the image-side surface of the sixth lens element which is the fourth nearest to the optical axis is denoted by HIF624. The following conditions are satisfied: 0.001 mm≦|HIF614|≦5 mm and 0.001 mm≦|HIF624|≦5 mm. Preferably, the following conditions may be satisfied: 0.1 mm≦|HIF624|≦3.5 mm and 0.1 mm≦|HIF614|≦3.5 mm.
In one embodiment of the optical image capturing system of the present disclosure, the chromatic aberration of the optical image capturing system can be corrected by alternatively arranging the lens elements with large Abbe number and small Abbe number.
The above Aspheric formula is:

z=ch2/[1+[1−(k+1)c2h2]0.5]+A4h4+A6h6+A8h8+A10h10+A12h12+A14h14+A16h16+A18h18+A20h20+ . . .  (1),

where z is a position value of the position along the optical axis and at the height h which reference to the surface apex; k is the conic coefficient, c is the reciprocal of curvature radius, and A4, A6, A8, A10, A12, A14, A16, A18, and A20 are high order aspheric coefficients.

The optical image capturing system provided by the disclosure, the lens elements may be made of glass or plastic material. If plastic material is adopted to produce the lens elements, the cost of manufacturing will be lowered effectively. If lens elements are made of glass, the heat effect can be controlled and the designed space arranged for the refractive power of the optical image capturing system can be increased. Besides, the object-side surface and the image-side surface of the first through sixth lens elements may be aspheric, so as to obtain more control variables. Comparing with the usage of traditional lens element made by glass, the number of lens elements used can be reduced and the aberration can be eliminated. Thus, the total height of the optical image capturing system can be reduced effectively.
In addition, in the optical image capturing system provided by the disclosure, if the lens element has a convex surface, the surface of the lens element adjacent to the optical axis is convex in principle. If the lens element has a concave surface, the surface of the lens element adjacent to the optical axis is concave in principle.
The optical image capturing system of the disclosure can be adapted to the optical image capturing system with automatic focus if required. With the features of a good aberration correction and a high quality of image formation, the optical image capturing system can be used in various application fields.
The optical image capturing system of the disclosure can include a driving module according to the actual requirements. The driving module may be coupled with the lens elements to enable the lens elements producing displacement. The driving module may be the voice coil motor (VCM) which is applied to move the lens to focus, or may be the optical image stabilization (OIS) which is applied to reduce the distortion frequency owing to the vibration of the lens while shooting.
At least one of the first, second, third, fourth, fifth and sixth lens elements of the optical image capturing system of the disclosure may further be designed as a light filtration element with a wavelength of less than 500 nm according to the actual requirement. The light filtration element may be made by coating at least one surface of the specific lens element characterized of the filter function, and alternatively, may be made by the lens element per se made of the material which is capable of filtering short wavelength.
The image plane of the optical image capturing system according to the present application may be a plane or a curved surface based on the actual requirement. When the image plane is a curved surface such as a spherical surface with a radius of curvature, the angle of incidence which is necessary for focusing light on the image plane can be reduced. Hence, it not only contributes to shortening the length of the optical image capturing system, but also to promote the relative luminance.
In the optical image capturing system of the present invention, the object-side surface of each lens element may have a bearing surface of object side depending on the requirement, and the image-side surface thereof has a bearing surface of image side. Depending on the requirement, the bearing surface of object side and the bearing surface of image side of each lens element may be respectively configured to be mutually inserted to the adjacent front lens element and the adjacent rear lens element via the contact surfaces thereof, so as to form a stacked structure. The length of the outline of the contact surface in the radial direction of the lens is denoted by BSL, which satisfies condition as follows: 0.01 mm≦BSL≦1 mm. In a preferred embodiment, condition as follows is satisfied: 0.05 mm≦BSL≦0.5 mm. In the most preferred embodiment, condition as follows is satisfied: 0.08 mm≦BSL≦0.2 mm.
In the optical image capturing system of the present invention, the stacked structure may be designed as a single-insertion structure based on requirement, e.g. the first lens element has a first bearing surface of image side on the image-side surface thereof, and the second lens element has a second bearing surface of object side on the object-side surface thereof, such that the second bearing surface of object side contacts with the first bearing surface of image side and both of them are inserted to each other. Alternatively, the stacked structure may be designed as a double-insertion structure, e.g. a double-insertion structure is provided on the basis of the single-insertion structure. The second lens element has a second bearing surface of image side, the third lens element has a third bearing surface of object side, and the third bearing surface of object side contacts with the second bearing surface of image side such that both of them are inserted to each other.
Alternatively, the structure can be a triple-insertion structure or a full-insertion structure. An optical image capturing system with seven-piece optical lenses, for example, is provided on the basis of double-insertion structure. The third lens element has a third bearing surface of image side on the image-side surface thereof, the fourth lens element has a fourth bearing surface of object side on the object-side surface thereof, and the fourth bearing surface of object side contacts with the third bearing surface of image side such that both of them are inserted to each other. The fourth lens element has a fourth bearing surface of image side on the image-side surface thereof, the fifth lens element has a fifth bearing surface of object side on the object-side surface thereof, and the fifth bearing surface of object side contacts with the fourth bearing surface of image side such that both of them are inserted to each other. The fifth lens element has a fifth bearing surface of image side on the image-side surface thereof, the sixth lens element has a sixth bearing surface of object side on the object-side surface thereof, and the sixth bearing surface of object side contacts with the fifth bearing surface of image side such that both of them are inserted to each other, The sixth lens element has a bearing surface of image side on the image-side surface thereof, the seventh lens element has a seventh bearing surface of object side on the object-side surface thereof, and the seventh bearing surface of object side contacts with the sixth bearing surface of image side such that both of them are inserted to each other.
Depending on the requirement, the extension lines of the first to seventh bearing surfaces of image side may be configured to extend toward the object side or the image plane and intersect with the optical axis to form angles IAG, which are denoted by IAG1, IAG2, IAG3, IAG4, IAG5, IAG6 and IAG7, respectively; condition as follows is satisfied: 0 deg<IAG≦90 deg. The values of the aforementioned angles IAG1 to IAG7 may vary in order to meet the practical requirement of the specification of the optical image capturing system. In a preferred embodiment, condition as follows may be imposed: 0 deg<IAG≦45 deg. In a specific embodiment, the following condition may be imposed: 0 deg<IAG≦30 deg and IAG1 to IAG7 are approximately equivalent angles, i.e. IAG1=IAG2=IAG3=IAG4=IAG5=IAG6=IAG7. In another specific embodiment, the following conditions may be imposed: 0 deg<IAG≦30 deg. In yet another specific embodiment, the following condition may be imposed: the angle IAG1 or the angle IAG7 is the smallest.
Take the full-insertion structure of the aforementioned optical image capturing system with seven-piece lenses for example, the extension lines of the first to seventh bearing surfaces of object side may be configured to extend toward the object side or the image plane and intersect with the optical axis to form angles OAG, which are denoted by OAG1, OAG2, OAG3, OAG4, OAG5, OAG6 and OAG7, respectively; condition as follows is satisfied: 0 deg<OAG≦90 deg. The values of the aforementioned angles OAG1 to OAG7 may vary in order to meet the practical requirement of the specification of the optical image capturing system. In a preferred embodiment, condition as follows may be imposed: 0 deg<OAG≦45 deg. In a specific embodiment, the following condition may be imposed: 0 deg<OAG≦30 deg and OAG1 to OAG7 are approximately equivalent angles, i.e. OAG1=OAG2=OAG3=OAG4=OAG5=OAG5=OAG6=OAG7. In another specific embodiment the following condition may be imposed: 0 deg<OAG≦30 deg. In yet another specific embodiment the following condition may be imposed: the angle OAG1 or the angle OAG7 is the smallest.
Referring to FIG. 7, which is a schematic view of the full-insertion structure of the seventh embodiment of the optical image capturing system; the method of assembling the full-insertion structure is applicable to the first embodiment to the sixth embodiment; all of the bearing surfaces of image side, and all of the bearing surfaces of object side are configured to extend toward the object side and intersect with the optical axis to form angles; wherein the angles IAG1 to IAG4 and the angles OAG1 to OAG4 are identical, and are set at 25 deg. In the order from object side to image side, the optical image capturing system includes: an aperture stop 700, a first lens element 710, a second lens element 720, a third lens element 730, a fourth lens element 740 and an image plane 790. The first lens element has a first bearing surface of image side 718 at the image-side surface thereof; the second lens element has a second bearing surface of object side 726 at the object-side surface thereof and has a second bearing surface of image side 728 at the image-side surface thereof. The second bearing surface of object side 726 and the first bearing surface of image side 718 come into contact with each other. The third lens element has a third bearing surface of object side 736 at the object-side surface thereof and has a third bearing surface of image side 738 at the image-side surface thereof. The third bearing surface of object side 736 and the second bearing surface of image side 728 come into contact with each other. The fourth lens element has a fourth bearing surface of object side 746 at the object-side surface thereof and has a fourth bearing surface of image side 748 at the image-side surface thereof. The fourth bearing surface of object side 746 and the third bearing surface of image side 738 come into contact with each other. The fifth lens element has a fifth bearing surface of object side 756 at the object-side surface thereof and has a fifth bearing surface of image side 758 at the image-side surface thereof. The fifth bearing surface of object side 756 and the fourth bearing surface of image side 748 come into contact with each other. The sixth lens element has a sixth bearing surface of object side 766 at the object-side surface thereof and has a sixth bearing surface of image side 768 at the image-side surface thereof. The sixth bearing surface of object side 766 and the fifth bearing surface of image side 758 come into contact with each other. The bearing surface of object side and the bearing surface of image side of each lens element may be respectively and mutually inserted to the adjacent front lens element and the adjacent rear lens element via the contact surfaces thereof, so as to form a stacked structure.
Referring to FIG. 8, which is schematic view of the full-insertion structure of the eighth embodiment of the optical image capturing system; the method of assembling the full-insertion structure is applicable to the first embodiment to the sixth embodiment; all of the bearing surfaces of image side, and all of the bearing surfaces of object side are configured to extend toward the image plane and intersect with the optical axis to form angles. Wherein the angles IAG1 to IAG4 and the angles OAG1 to OAG4 are identical, and are set at 25 deg. In the order from object side to image side, the optical image capturing system includes: an aperture stop 800, a first lens element 810, a second lens element 820, a third lens element 830, a fourth lens element 840 and an image plane 890. The first lens element has a first bearing surface of image side 818 at the image-side surface thereof; the second lens element has a second bearing surface of object side 826 at the object-side surface thereof and has a second bearing surface of image side 828 at the image-side surface thereof. The second bearing surface of object side 826 and the first bearing surface of image side 818 come into contact with each other. The third lens element has a third bearing surface of object side 836 at the object-side surface thereof and has a third bearing surface of image side 838 at the image-side surface thereof. The third bearing surface of object side 836 and the second bearing surface of image side 828 come into contact with each other. The fourth lens element has a fourth bearing surface of object side 846 at the object-side surface thereof and has a fourth bearing surface of image side 848 at the image-side surface thereof. The fourth bearing surface of object side 846 and the third bearing surface of image side 838 come into contact with each other. The fifth lens element has a fifth bearing surface of object side 856 at the object-side surface thereof and has a fifth bearing surface of image side 858 at the image-side surface thereof. The fifth bearing surface of object side 856 and the fourth bearing surface of image side 848 come into contact with each other. The sixth lens element has a sixth bearing surface of object side 866 at the object-side surface thereof and has a sixth bearing surface of image side 868 at the image-side surface thereof. The sixth bearing surface of object side 866 and the fifth bearing surface of image side 858 come into contact with each other. The bearing surface of object side and the bearing surface of image side of each lens element may be respectively and mutually inserted to the adjacent front lens element and the adjacent rear lens element via the contact surfaces thereof, so as to form a stacked structure.
According to the above embodiments, the specific embodiments with figures are presented in detail as below.
The First Embodiment (Embodiment 1)
Please refer to FIG. 1A and FIG. 1B. FIG. 1A is a schematic view of the optical image capturing system according to the first embodiment of the present application, FIG. 1B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the first embodiment of the present application, and FIG. 1C is a characteristic diagram of modulation transfer of a visible light according to the first embodiment of the present application. As shown in FIG. 1A, in order from an object side to an image side, the optical image capturing system includes a first lens element 110, an aperture stop 100, a second lens element 120, a third lens element 130, a fourth lens element 140, a fifth lens element 150, a sixth lens element 160, an IR-bandstop filter 180, an image plane 190, and an image sensing device 192.
The first lens element 110 has negative refractive power and it is made of plastic material. The first lens element 110 has a concave object-side surface 112 and a concave image-side surface 114, and both of the object-side surface 112 and the image-side surface 114 are aspheric. The object-side surface 112 has two inflection points. The thickness of the first lens element on the optical axis is TP1. The thickness of the first lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP1.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the first lens element which is nearest to the optical axis to an axial point on the object-side surface of the first lens element is denoted by SGI111. A distance in parallel with an optical axis from an inflection point on the image-side surface of the first lens element which is nearest to the optical axis to an axial point on the image-side surface of the first lens element is denoted by SGI121. The following conditions are satisfied: SGI111=−0.0031 mm and |SGI111|/(|SGI111|+TP1)=0.0016.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the first lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the first lens element is denoted by SGI112. A distance in parallel with an optical axis from an inflection point on the image-side surface of the first lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the first lens element is denoted by SGI122. The following conditions are satisfied: SGI112=1.3178 mm and |SGI112|/(|SGI112|+TP1)=0.4052.
A distance perpendicular to the optical axis from the inflection point on the object-side surface of the first lens element which is nearest to the optical axis to an axial point on the object-side surface of the first lens element is denoted by HIF111. A distance perpendicular to the optical axis from the inflection point on the image-side surface of the first lens element which is nearest to the optical axis to an axial point on the image-side surface of the first lens element is denoted by HIF121. The following conditions are satisfied: HIF111=0.5557 mm and HIF111/HOI=0.1111.
A distance perpendicular to the optical axis from the inflection point on the object-side surface of the first lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the first lens element is denoted by HIF112. A distance perpendicular to the optical axis from the inflection point on the image-side surface of the first lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the first lens element is denoted by HIF122. The following conditions are satisfied: HIF112=5.3732 mm and HIF112/HOI=1.0746.
The second lens element 120 has positive refractive power and it is made of plastic material. The second lens element 120 has a convex object-side surface 122 and a convex image-side surface 124, and both of the object-side surface 122 and the image-side surface 124 are aspheric. The object-side surface 122 has an inflection point. The thickness of the second lens element on the optical axis is TP2. The thickness of the second lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP2.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the second lens element which is nearest to the optical axis to an axial point on the object-side surface of the second lens element is denoted by SGI211. A distance in parallel with an optical axis from an inflection point on the image-side surface of the second lens element which is nearest to the optical axis to an axial point on the image-side surface of the second lens element is denoted by SGI221. The following conditions are satisfied: SGI211=0.1069 mm, |SGI211|/(|SGI211|+TP2)=0.0412, SGI221=0 mm and |SGI221|/(|SGI221|+TP2)=0.
A distance perpendicular to the optical axis from the inflection point on the object-side surface of the second lens element which is nearest to the optical axis to an axial point on the object-side surface of the second lens element is denoted by HIF211. A distance perpendicular to the optical axis from the inflection point on the image-side surface of the second lens element which is nearest to the optical axis to an axial point on the image-side surface of the second lens element is denoted by HIF221. The following conditions are satisfied: HIF211=1.1264 mm, HIF211/HOI=0.2253, HIF221=0 mm and HIF221/HOI=0.
The third lens element 130 has negative refractive power and it is made of plastic material. The third lens element 130 has a concave object-side surface 132 and a convex image-side surface 134, and both of the object-side surface 132 and the image-side surface 134 are aspheric. The object-side surface 132 and the image-side surface 134 both have an inflection point. The thickness of the third lens element on the optical axis is TP3. The thickness of the third lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP3.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the third lens element which is nearest to the optical axis to an axial point on the object-side surface of the third lens element is denoted by SGI311. A distance in parallel with an optical axis from an inflection point on the image-side surface of the third lens element which is nearest to the optical axis to an axial point on the image-side surface of the third lens element is denoted by SGI321. The following conditions are satisfied: SGI311=−0.3041 mm, |SGI311|/(|SGI311|+TP3)=0.4445, SGI321=−0.1172 mm and SGI321|/(|SGI321|+TP3)=0.2357.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the third lens element which is nearest to the optical axis and the optical axis is denoted by HIF311. A distance perpendicular to the optical axis from the inflection point on the image-side surface of the third lens element which is nearest to the optical axis to an axial point on the image-side surface of the third lens element is denoted by HIF321. The following conditions are satisfied: HIF311=1.5907 mm, HIF311/HOI=0.3181, HIF321=1.3380 mm and HIF321/HOI=0.2676.
The fourth lens element 140 has positive refractive power and it is made of plastic material. The fourth lens element 140 has a convex object-side surface 142 and a concave image-side surface 144, and both of the object-side surface 142 and the image-side surface 144 are aspheric. The object-side surface 142 has two inflection points and the image-side surface 144 has an inflection point. The thickness of the fourth lens element on the optical axis is TP4. The thickness of the fourth lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP4.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fourth lens element which is nearest to the optical axis to an axial point on the object-side surface of the fourth lens element is denoted by SGI411. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fourth lens element which is nearest to the optical axis to an axial point on the image-side surface of the fourth lens element is denoted by SGI421. The following conditions are satisfied: SGI411=0.0070 mm, |SGI411|/(|SGI411|+TP4)=0.0056, SGI421=0.0006 mm and |SGI421|/(|SGI421|+TP4)=0.0005.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fourth lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the fourth lens element is denoted by SGI412. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fourth lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the fourth lens element is denoted by SGI422. The following conditions are satisfied: SGI412=−0.2078 mm and SGI412/(|SGI412|+TP4)=0.1439.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens element which is nearest to the optical axis and the optical axis is denoted by HIF411. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens element which is nearest to the optical axis and the optical axis is denoted by HIF421. The following conditions are satisfied: HIF411=0.4706 mm, HIF411/HOI=0.0941, HIF421=0.1721 mm and HIF421/HOI=0.0344.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF412. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF422. The following conditions are satisfied: HIF412=2.0421 mm and HIF412/HOI=0.4084.
The fifth lens element 150 has positive refractive power and it is made of plastic material. The fifth lens element 150 has a convex object-side surface 152 and a convex image-side surface 154, and both of the object-side surface 152 and the image-side surface 154 are aspheric. The object-side surface 152 has two inflection points and the image-side surface 154 has an inflection point. The thickness of the fifth lens element on the optical axis is TP5. The thickness of the fifth lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP5.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fifth lens element which is nearest to the optical axis to an axial point on the object-side surface of the fifth lens element is denoted by SGI511. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fifth lens element which is nearest to the optical axis to an axial point on the image-side surface of the fifth lens element is denoted by SGI521. The following conditions are satisfied: SGI511=0.00364 mm, |SGI511|/(|SGI511|+TP5)=0.00338, SGI521=−0.63365 mm and |SGI521|/(|SGI521|+TP5)=0.37154.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fifth lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the fifth lens element is denoted by SGI512. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fifth lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the fifth lens element is denoted by SGI522. The following conditions are satisfied: SGI512=−0.32032 mm and |SGI512|/(|SGI512|+TP5)=0.23009.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fifth lens element which is the third nearest to the optical axis to an axial point on the object-side surface of the fifth lens element is denoted by SGI513. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fifth lens element which is the third nearest to the optical axis to an axial point on the image-side surface of the fifth lens element is denoted by SGI523. The following conditions are satisfied: SGI513=0 mm, |SGI513|/(|SGI513|+TP5)=0, SGI523=0 mm and |SGI523/(|SGI523|+TP5)=0.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the fifth lens element which is the fourth nearest to the optical axis to an axial point on the object-side surface of the fifth lens element is denoted by SGI514. A distance in parallel with an optical axis from an inflection point on the image-side surface of the fifth lens element which is the fourth nearest to the optical axis to an axial point on the image-side surface of the fifth lens element is denoted by SGI524. The following conditions are satisfied: SGI514=0 mm, |SGI514|/(|SGI514|+TP5)=0, SGI524=0 mm and |SGI524/(|SGI524|+TP5)=0.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens element which is nearest to the optical axis and the optical axis is denoted by HIF511. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens element which is nearest to the optical axis and the optical axis is denoted by HIF521. The following conditions are satisfied: HIF511=0.28212 mm, HIF511/HOI=0.05642, HIF521=2.13850 mm and HIF521/HOI=0.42770.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF512. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF522. The following conditions are satisfied: HIF512=2.51384 mm and HIF512/HOI=0.50277.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens element which is the third nearest to the optical axis and the optical axis is denoted by HIF513. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens element which is the third nearest to the optical axis and the optical axis is denoted by HIF523. The following conditions are satisfied: HIF513=0 mm, HIF513/HOI=0, HIF523=0 mm and HIF523/HOI=0.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens element which is the fourth nearest to the optical axis and the optical axis is denoted by HIF514. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens element which is the fourth nearest to the optical axis and the optical axis is denoted by HIF524. The following conditions are satisfied: HIF514=0 mm, HIF514/HOI=0, HIF524=0 mm and HIF524/HOI=0.
The sixth lens element 160 has negative refractive power and it is made of plastic material. The sixth lens element 160 has a concave object-side surface 162 and a concave image-side surface 164, and the object-side surface 162 has two inflection points and the image-side surface 164 has an inflection point. Hereby, the angle of incident of each view field on the sixth lens element can be effectively adjusted and the spherical aberration can thus be improved. The thickness of the sixth lens element on the optical axis is TP6. The thickness of the sixth lens element at height of 1⁄2 entrance pupil diameter (HEP) is denoted by ETP6.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the sixth lens element which is nearest to the optical axis to an axial point on the object-side surface of the sixth lens element is denoted by SGI611. A distance in parallel with an optical axis from an inflection point on the image-side surface of the sixth lens element which is nearest to the optical axis to an axial point on the image-side surface of the sixth lens element is denoted by SGI621. The following conditions are satisfied: SGI611=−0.38558 mm, |SGI611|/(|SGI611|+TP6)=0.27212, SGI621=0.12386 mm and |SGI621|/(|SGI621|+TP6)=0.10722.
A distance in parallel with an optical axis from an inflection point on the object-side surface of the sixth lens element which is the second nearest to the optical axis to an axial point on the object-side surface of the sixth lens element is denoted by SGI612. A distance in parallel with an optical axis from an inflection point on the image-side surface of the sixth lens element which is the second nearest to the optical axis to an axial point on the image-side surface of the sixth lens element is denoted by SGI621. The following conditions are satisfied: SGI612=−0.47400 mm, |SGI612|/(|SGI612|+TP6)=0.31488, SGI622=0 mm and |SGI622|/(|SGI622|+TP6)=0.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is nearest to the optical axis and the optical axis is denoted by HIF611. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the sixth lens element which is nearest to the optical axis and the optical axis is denoted by HIF621. The following conditions are satisfied: HIF611=2.24283 mm, HIF611/HOI=0.44857, HIF621=1.07376 mm and HIF621/HOI=0.21475.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF612. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the sixth lens element which is the second nearest to the optical axis and the optical axis is denoted by HIF622. The following conditions are satisfied: HIF612=2.48895 mm and HIF612/HOI=0.49779.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the third nearest to the optical axis and the optical axis is denoted by HIF613. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the sixth lens element which is the third nearest to the optical axis and the optical axis is denoted by HIF623. The following conditions are satisfied: HIF613=0 mm, HIF613/HOI=0, HIF623=0 mm and HIF623/HOI=0.
A distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens element which is the fourth nearest to the optical axis and the optical axis is denoted by HIF614. A distance perpendicular to the optical axis between the inflection point on the image-side surface of the sixth lens element which is the fourth nearest to the optical axis and the optical axis is denoted by HIF624. The following conditions are satisfied: HIF614=0 mm, HIF614/HOI=0, HIF624=0 mm and HIF624/HOI=0.
In the first embodiment, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to the image plane is ETL. A horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP is EIN. The following conditions are satisfied: ETL=19.304 mm, EIN=15.733 mm and EIN/ETL=0.815.
The first embodiment satisfies the following conditions: ETP1=2.371 mm, ETP2=2.134 mm, ETP3=0.497 mm, ETP4=1.111 mm, ETP5=1.783 mm and ETP6=1.404 mm. A sum of ETP1 to ETP6 described above SETP=9.300 mm. TP1=2.064 mm, TP2=2.500 mm, TP3=0.380 mm, TP4=1.186 mm, TP5=2.184 mm and TP6=1.105 mm. A sum of TP1 to TP6 described above STP=9.419 mm. SETP/STP=0.987. SETP/EIN=0.5911.
The present embodiment particularly controls the ratio relation (ETP/TP) of the thickness (ETP) of each lens element at height of 1⁄2 entrance pupil diameter (HEP) to the thickness (TP) of the lens element to which the surface belongs on the optical axis in order to achieve a balance between manufacturability and capability of aberration correction. The following conditions are satisfied: ETP1/TP1=1.149, ETP2/TP2=0.854, ETP3/TP3=1.308, ETP4/TP4=0.936, ETP5/TP5=0.817 and ETP6/TP6=1.271.
The present embodiment controls a horizontal distance between each two adjacent lens elements at height of 1⁄2 entrance pupil diameter (HEP) to achieve a balance between the degree of miniaturization for the length of the optical image capturing system HOS, the manufacturability and the capability of aberration correction. The ratio relation (ED/IN) of the horizontal distance (ED) between the two adjacent lens elements at height of 1⁄2 entrance pupil diameter (HEP) to the horizontal distance (IN) between the two adjacent lens elements on the optical axis is particularly controlled. The following conditions are satisfied: a horizontal distance in parallel with the optical axis between the first lens element and the second lens element at height of 1⁄2 entrance pupil diameter (HEP) ED12=5.285 mm; a horizontal distance in parallel with the optical axis between the second lens element and the third lens element at height of 1⁄2 entrance pupil diameter (HEP) ED23=0.283 mm; a horizontal distance in parallel with the optical axis between the third lens element and the fourth lens element at height of 1⁄2 entrance pupil diameter (HEP) ED34=0.330 mm; a horizontal distance in parallel with the optical axis between the fourth lens element and the fifth lens element at height of 1⁄2 entrance pupil diameter (HEP) ED45=0.348 mm; a horizontal distance in parallel with the optical axis between the fifth lens element and the sixth lens element at height of 1⁄2 entrance pupil diameter (HEP) ED56=0.187 mm. A sum of ED12 to ED56 described above is denoted as SED and SED=6.433 mm.
The horizontal distance between the first lens element and the second lens element on the optical axis IN12=5.470 mm and ED12/IN12=0.966. The horizontal distance between the second lens element and the third lens element on the optical axis IN23=0.178 mm and ED23/IN23=1.590. The horizontal distance between the third lens element and the fourth lens element on the optical axis IN34=0.259 mm and ED34/IN34=1.273. The horizontal distance between the fourth lens element and the fifth lens element on the optical axis IN45=0.209 mm and ED45/IN45=1.664. The horizontal distance between the fifth lens element and the sixth lens element on the optical axis IN56=0.034 mm and ED56/IN56=5.557. A sum of IN12 to IN56 described above is denoted as SIN. SIN=6.150 mm. SED/SIN=1.046.
The first embodiment also satisfies the following conditions: ED12/ED23=18.685, ED23/ED34=0.857, ED34/ED45=0.947, ED45/ED56=1.859, IN12/IN23=30.746, IN23/IN34=0.686, IN34/IN45=1.239 and IN45/IN56=6.207.
A horizontal distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the image plane EBL=3.570 mm. A horizontal distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the image plane BL=4.032 mm. The embodiment of the present invention may satisfy the following condition: EBL/BL=0.8854. In the present invention, a distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the IR-bandstop filter EIR=1.950 mm. A distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the IR-bandstop filter PIR=2.121 mm. The following condition is satisfied: EIR/PIR=0.920.
The IR-bandstop filter 180 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 160 and the image plane 190.
In the optical image capturing system of the first embodiment, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, and half of a maximal view angle of the optical image capturing system is HAF. The detailed parameters are shown as below: f=4.075 mm, f/HEP=1.4, HAF=50.001° and tan(HAF)=1.1918.
In the optical image capturing system of the first embodiment, a focal length of the first lens element 110 is f1 and a focal length of the sixth lens element 160 is f6. The following conditions are satisfied: f1=−7.828 mm, |f/f1|=0.52060, f6=−4.886 and |f1|>|f6|.
In the optical image capturing system of the first embodiment, focal lengths of the second lens element 120 to the fifth lens element 150 are f2, f3, f4 and f5, respectively. The following conditions are satisfied: |f2|+|f3|+|f4|+|f5|=95.50815 mm, |f1|+|f6|=12.71352 mm and ⊕f2|+|f3|+|f4|+|f5|>|f1|+|f6|.
A ratio of the focal length f of the optical image capturing system to a focal length fp of each of lens elements with positive refractive power is PPR. A ratio of the focal length f of the optical image capturing system to a focal length fn of each of lens elements with negative refractive power is NPR. In the optical image capturing system of the first embodiment, a sum of the PPR of all lens elements with positive refractive power is ΣPPR=f/f1+f/f3+f/f5=1.63290. A sum of the NPR of all lens elements with negative refractive powers is ΣNPR=|f/f1|+|f/f3|+|f/f6|=1.51305, ΣPPR/ΣNPR|=1.07921. The following conditions are also satisfied: f/f21=0.69101, |f/f3|=0.15834, |f/f4|=0.06883, |f/f5|=0.87305 and |f/f6|=0.83412.
In the optical image capturing system of the first embodiment, a distance from the object-side surface 112 of the first lens element to the image-side surface 164 of the sixth lens element is InTL. A distance from the object-side surface 112 of the first lens element to the image plane 190 is HOS. A distance from an aperture 100 to an image plane 190 is InS. Half of a diagonal length of an effective detection field of the image sensing device 192 is HOI. A distance from the image-side surface 164 of the sixth lens element to the image plane 190 is BFL. The following conditions are satisfied: InTL+BFL=HOS, HOS=19.54120 mm, HOI=5.0 mm, HOS/HOI=3.90824, HOS/f=4.7952, InS=11.685 mm and InS/HOS=0.59794.
In the optical image capturing system of the first embodiment, a total central thickness of all lens elements with refractive power on the optical axis is ΣTP. The following conditions are satisfied: ΣTP=8.13899 mm and ΣTP/InTL=0.52477. Hereby, contrast ratio for the image formation in the optical image capturing system and defect-free rate for manufacturing the lens element can be given consideration simultaneously, and a proper back focal length is provided to dispose other optical components in the optical image capturing system.
In the optical image capturing system of the first embodiment, a curvature radius of the object-side surface 112 of the first lens element is R1. A curvature radius of the image-side surface 114 of the first lens element is R2. The following condition is satisfied: |R1/R2|=8.99987. Hereby, the first lens element may have proper strength of the positive refractive power, so as to avoid the longitudinal spherical aberration to increase too fast.
In the optical image capturing system of the first embodiment, a curvature radius of the object-side surface 162 of the sixth lens element is R11. A curvature radius of the image-side surface 164 of the sixth lens element is R12. The following condition is satisfied: (R11−R12)/(R11+R12)=1.27780. Hereby, the astigmatism generated by the optical image capturing system can be corrected beneficially.
In the optical image capturing system of the first embodiment, a sum of focal lengths of all lens elements with positive refractive power is ΣPP. The following conditions are satisfied: ΣPP=f1+f3+f5=69.770 mm and f5/(f2+f4+f5)=0.067. Hereby, it is favorable for allocating the positive refractive power of a single lens element to other positive lens elements and the significant aberrations generated in the process of moving the incident light can be suppressed.
In the optical image capturing system of the first embodiment, a sum of focal lengths of all lens elements with negative refractive power is ΣNP. The following conditions are satisfied: ΣNP=f1+f3+f6=−38.451 mm and f6/(f1+f3+f6)=0.127. Hereby, it is favorable for allocating the positive refractive power of the sixth lens element 160 to other negative lens elements and the significant aberrations generated in the process of moving the incident light can be suppressed.
In the optical image capturing system of the first embodiment, a distance between the first lens element 110 and the second lens element 120 on the optical axis is IN12. The following conditions are satisfied: IN12=6.418 mm and IN12/f=1.57491. Hereby, the chromatic aberration of the lens elements can be improved, such that the performance can be increased.
In the optical image capturing system of the first embodiment, a distance between the fifth lens element 150 and the sixth lens element 160 on the optical axis is IN56. The following conditions are satisfied: IN56=0.025 mm and IN56/f=0.00613. Hereby, the chromatic aberration of the lens elements can be improved, such that the performance can be increased.
In the optical image capturing system of the first embodiment, central thicknesses of the first lens element 110 and the second lens element 120 on the optical axis are TP1 and TP2, respectively. The following conditions are satisfied: TP1=1.934 mm, TP2=2.486 mm and (TP1+IN12)/TP2=3.36005. Hereby, the sensitivity produced by the optical image capturing system can be controlled, and the performance can be increased.
In the optical image capturing system of the first embodiment, central thicknesses of the fifth lens element 150 and the sixth lens element 160 on the optical axis are TP5 and TP6, respectively, and a distance between the aforementioned two lens elements on the optical axis is IN56. The following conditions are satisfied: TP5=1.072 mm, TP6=1.031 mm and (TP6+IN56)/TP5=0.98555. Hereby, the sensitivity produced by the optical image capturing system can be controlled and the total height of the optical image capturing system can be reduced.
In the optical image capturing system of the first embodiment, a distance between the third lens element 130 and the fourth lens element 140 on the optical axis is IN34. A distance between the fourth lens element 140 and the fifth lens element 150 on the optical axis is IN45. The following conditions are satisfied: IN34=0.401 mm, IN45=0.025 mm and TP4/(IN34+TP4+IN45)=0.74376. Hereby, the aberration generated by the process of moving the incident light can be adjusted slightly layer upon layer, and the total height of the optical image capturing system can be reduced.
In the optical image capturing system of the first embodiment, a distance in parallel with an optical axis from a maximum effective half diameter position to an axial point on the object-side surface 152 of the fifth lens element is InRS51. A distance in parallel with an optical axis from a maximum effective half diameter position to an axial point on the image-side surface 154 of the fifth lens element is InRS52. A central thickness of the fifth lens element 150 is TP5. The following conditions are satisfied: InRS51=−0.34789 mm, InRS52=−0.88185 mm, |InRS51|/TP5=0.32458 and |InRS52|/TP5=0.82276. Hereby, it is favorable for manufacturing and forming the lens element and for maintaining the minimization for the optical image capturing system.
In the optical image capturing system of the first embodiment, a distance perpendicular to the optical axis between a critical point C51 on the object-side surface 152 of the fifth lens element and the optical axis is HVT51. A distance perpendicular to the optical axis between a critical point C52 on the image-side surface 154 of the fifth lens element and the optical axis is HVT52. The following conditions are satisfied: HVT51=0.515349 mm and HVT52=0 mm.
In the optical image capturing system of the first embodiment, a distance in parallel with an optical axis from a maximum effective half diameter position to an axial point on the object-side surface 162 of the sixth lens element is InRS61. A distance in parallel with an optical axis from a maximum effective half diameter position to an axial point on the image-side surface 164 of the sixth lens element is InRS62. A central thickness of the sixth lens element 160 is TP6. The following conditions are satisfied: InRS61=−0.58390 mm, InRS62=0.41976 mm, |InRS61|/TP6=0.56616 and |InRS62|/TP6=0.40700. Hereby, it is favorable for manufacturing and forming the lens element and for maintaining the minimization for the optical image capturing system.
In the optical image capturing system of the first embodiment, a distance perpendicular to the optical axis between a critical point C61 on the object-side surface 162 of the sixth lens element and the optical axis is HVT61. A distance perpendicular to the optical axis between a critical point C62 on the image-side surface 164 of the sixth lens element and the optical axis is HVT62. The following conditions are satisfied: HVT61=0 mm and HVT62=0 mm.
In the optical image capturing system of the first embodiment, the following condition is satisfied: HVT51/HOI=0.1031. Hereby, the aberration of surrounding view field can be corrected.
In the optical image capturing system of the first embodiment, the following condition is satisfied: HVT51/HOS=0.02634. Hereby, the aberration of surrounding view field can be corrected.
In the optical image capturing system of the first embodiment, the second lens element 120, the third lens element 130 and the sixth lens element 160 have negative refractive power. An Abbe number of the second lens element is NA2. An Abbe number of the third lens element is NA3. An Abbe number of the sixth lens element is NA6. The following condition is satisfied: NA6/NA2≦1. Hereby, the chromatic aberration of the optical image capturing system can be corrected.
In the optical image capturing system of the first embodiment, TV distortion and optical distortion for image formation in the optical image capturing system are TDT and ODT, respectively. The following conditions are satisfied: |TDT|=2.124% and |ODT|=5.076%.
In the optical image capturing system of the present embodiment, contrast transfer rates of modulation transfer for spatial frequency of 55 cycles/mm of a visible light at positions of the optical axis, 0.3 HOI and 0.7 HOI on the image plane are respectively denoted by MTFE0, MTFE3 and MTFE7. The following conditions are satisfied: MTFE0 is about 0.84, MTFE3 is about 0.84 and MTFE7 is about 0.75. The contrast transfer rates of modulation transfer for spatial frequency of 110 cycles/mm of a visible light at positions of the optical axis, 0.3 HOI and 0.7 HOI on the image plane are respectively denoted by MTFQ0, MTFQ3 and MTFQ7. The following conditions are satisfied: MTFQ0 is about 0.66, MTFQ3 is about 0.65 and MTFQ7 is about 0.51. The contrast transfer rates of modulation transfer for spatial frequency of 220 cycles/mm (values of MTF) at positions of the optical axis, 0.3 HOI and 0.7 HOI on the image plane are respectively denoted by MTFH0, MTFH3 and MTFH7. The following conditions are satisfied: MTFH0 is about 0.17, MTFH3 is about 0.07 and MTFH7 is about 0.14.
In the optical image capturing system of the present embodiment, when the infrared wavelength 850 nm is applied to focus on the image plane, contrast transfer rates of modulation transfer (values of MTF) for a spatial frequency (55 cycles/mm) of the image at the positions of the optical axis, 0.3 HOI and 0.7 HOI on the image plane are respectively denoted by MTFI0, MTFI3 and MTFI7. The following conditions are satisfied: MTFI0 is about 0.81, MTFI3 is about 0.8 and MTFI7 is about 0.15.
In the present embodiment of the optical image capturing system, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the image plane and intersect with the optical axis to form angles, wherein the angles IAG1 to IAG2 and OAG2 to OAG3 are the same, and are set to 90 deg. The lens elements form a stacked structure via the contact surfaces thereof that mutually insert one lens element to another, the lengths of the outlines of all of the aforementioned contact surfaces in the radial direction of the lens are denoted by BSL, which satisfy the following conditions: BSL=0.1 mm.
Please refer to the following Table 1 and Table 2.
The detailed data of the optical image capturing system of the first embodiment is as shown in Table 1.







TABLE 1







Lens Parameters of the First Embodiment


f = 5.709 mm, f/HEP = 1.9, HAF = 52.5 deg














Surface


Thickness

Refractive

Focal













#
Curvature Radius
(mm)
Material
Index
Abbe #
length

















 0
Object
Plane
Plano






 1
Lens 1
−40.99625704
1.934
Plastic
1.515
56.55
−7.828


 2

4.555209289
5.923






 3
Ape. stop
Plane
0.495






 4
Lens 2
5.333427366
2.486
Plastic
1.544
55.96
5.897


 5

−6.781659971
0.502






 6
Lens 3
−5.697794287
0.380
Plastic
1.642
22.46
−25.738


 7

−8.883957518
0.401






 8
Lens 4
13.19225664
1.236
Plastic
1.544
55.96
59.205


 9

21.55681832
0.025






10
Lens 5
8.987806345
1.072
Plastic
1.515
56.55
4.668


11

−3.158875374
0.025






12
Lens 6
−29.46491425
1.031
Plastic
1.642
22.46
−4.886


13

3.593484273
2.412






14
IR-bandstop
Plane
0.200

1.517
64.13




filter








15

Plane
1.420






16
Image
Plane








Plane











Reference wavelength (d-line) = 555 nm, shield position: the first surface with clear aperture (CA) of 5.800 mm; the third surface with clear aperture (CA) of 1.570 mm; the fifth surface with clear aperture (CA) of 1.950 mm






As for the parameters of the aspheric surfaces of the first embodiment, reference is made to Table 2.








TABLE 2





Aspheric Coefficients





















Surface








#
1
2
4
5
6
7





k
 4.310876E+01
−4.707622E+00
 2.616025E+00
 2.445397E+00
 5.645686E+00
−2.117147E+01


A4
 7.054243E−03
 1.714312E−02
−8.377541E−03
−1.789549E−02
−3.379055E−03
−1.370959E−02


A6
−5.233264E−04
−1.502232E−04
−1.838068E−03
−3.657520E−03
−1.225453E−03
 6.250200E−03


A8
 3.077890E−05
−1.359611E−04
 1.233332E−03
−1.131622E−03
−5.979572E−03
−5.854426E−03


A10
−1.260650E−06
 2.680747E−05
−2.390895E−03
 1.390351E−03
 4.556449E−03
 4.049451E−03


A12
 3.319093E−08
−2.017491E−06
 1.998555E−03
−4.152857E−04
−1.177175E−03
−1.314592E−03


A14
−5.051600E−10
 6.604615E−08
−9.734019E−04
 5.487286E−05
 1.370522E−04
 2.143097E−04


A16
 3.380000E−12
−1.301630E−09
 2.478373E−04
−2.919339E−06
−5.974015E−06
−1.399894E−05





Surface 








#
8
9
10
11
12
13





k
−5.287220E+00
 6.200000E+01
−2.114008E+01
−7.699904E+00
−6.155476E+01
−3.120467E−01


A4
−2.937377E−02
−1.359965E−01
−1.263831E−01
−1.927804E−02
−2.492467E−02
−3.521844E−02


A6
 2.743532E−03
 6.628518E−02
 6.965399E−02
 2.478376E−03
−1.835360E−03
 5.629654E−03


A8
−2.457574E−03
−2.129167E−02
−2.116027E−02
 1.438785E−03
 3.201343E−03
−5.466925E−04


A10
 1.874319E−03
 4.396344E−03
 3.819371E−03
−7.013749E−04
−8.990757E−04
 2.231154E−05


A12
−6.013661E−04
−5.542899E−04
−4.040283E−04
 1.253214E−04
 1.245343E−04
 5.548990E−07


A14
 8.792480E−05
 3.768879E−05
 2.280473E−05
−9.943196E−06
−8.788363E−06
−9.396920E−08


A16
−4.770527E−06
−1.052467E−06
−5.165452E−07
 2.898397E−07
 2.494302E−07
 2.728360E−09









Table 1 is the detailed structure data to the first embodiment in FIG. 1A, wherein the unit of the curvature radius, the thickness, the distance, and the focal length is millimeters (mm). Surfaces 0-16 illustrate the surfaces from the object side to the image plane in the optical image capturing system. Table 2 is the aspheric coefficients of the first embodiment, wherein k is the conic coefficient in the aspheric surface formula, and A1-A20 are the first to the twentieth order aspheric surface coefficient. Besides, the tables in the following embodiments are referenced to the schematic view and the aberration graphs, respectively, and definitions of parameters in the tables are equal to those in the Table 1 and the Table 2, so the repetitious details will not be given here.
The Second Embodiment (Embodiment 2)
Please refer to FIG. 2A, FIG. 2B and FIG. 2C. FIG. 2A is a schematic view of the optical image capturing system according to the second embodiment of the present application, FIG. 2B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the second embodiment of the present application, and FIG. 2C is a characteristic diagram of modulation transfer of a visible light according to the second embodiment of the present application. As shown in FIG. 2A, in order from an object side to an image side, the optical image capturing system includes a first lens element 210, a second lens element 220, a third lens element 230, an aperture stop 200, a fourth lens element 240, a fifth lens element 250, a sixth lens element 260, an IR-bandstop filter 280, an image plane 290, and an image sensing device 292. In the present embodiment, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the object side and intersect with the optical axis to form angles (not shown).
The first lens element 210 has negative refractive power and it is made of glass material. The first lens element 210 has a convex object-side surface 212 and a concave image-side surface 214.
The second lens element 220 has negative refractive power and it is made of glass material. The second lens element 220 has a convex object-side surface 222 and a concave image-side surface 224.
The third lens element 230 has positive refractive power and it is made of plastic material. The third lens element 230 has a concave object-side surface 232 and a convex image-side surface 234, and both of the object-side surface 232 and the image-side surface 234 are aspheric.
The fourth lens element 240 has positive refractive power and it is made of glass material. The fourth lens element 240 has a convex object-side surface 242 and a convex image-side surface 244.
The fifth lens element 250 has negative refractive power and it is made of plastic material. The fifth lens element 250 has a concave object-side surface 252 and a concave image-side surface 254, and both of the object-side surface 252 and the image-side surface 254 are aspheric.
The sixth lens element 260 has positive refractive power and it is made of glass material. The sixth lens element 260 has a convex object-side surface 262 and a convex image-side surface 264. The object-side surface 262 and the image-side surface 264 both have one inflection point. Hereby, the back focal length is reduced to miniaturize the lens element effectively. In addition, the angle of incident with incoming light from an off-axis view field can be suppressed effectively and the aberration in the off-axis view field can be corrected further.
The IR-bandstop filter 280 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 260 and the image plane 290.
Please refer to the following Table 3 and Table 4.
The detailed data of the optical image capturing system of the second embodiment is as shown in Table 3.







TABLE 3







Lens Parameters of the Second Embodiment


f = 3.142 mm, f/HEP = 1.2; HAF = 100 deg














Surface






Focal













#
Curvature Radius
Thickness
Material
Index
Abbe #
length

















 0
Object
1E+18
1E+18






 1
Lens 1
80.79571753
7.977
Glass
1.497
81.61
−43.428


 2

16.5032441
5.738






 3

81.81332063
4.731

1.723
37.99
−14.155


 4
Lens 2
8.917013206
6.526
Glass





 5

−16.31990429
29.055

1.565
54.50
28.908


 6
Lens 3
−13.44374771
1.601
Plastic





 7
Ape. stop
1E+18
0.217






 8
Lens 4
9.514743494
11.856
Glass
1.497
81.61
14.497


 9

−17.54741064
0.050






10
Lens 5
−64.29834269
1.201
Plastic
1.661
20.40
−10.193


11

7.656746036
0.050






12
Lens 6
7.480703945
7.137
Glass
1.497
81.61
11.787


13

−18.63421507
0.600






14
IR-bandstop
1E+18
0.850
BK_7
1.517
64.13




filter








15

1E+18
1.574






16
Image 
1E+18
0.001







plane











Reference wavelength (d-line) = 555 nm






As for the parameters of the aspheric surfaces of the second embodiment, reference is made to Table 4.








TABLE 4





Aspheric Coefficients





















Surface








#
1
2
3
4
5
6





k
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
−1.840407E+00
−3.203636E+00


A4
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
−1.849545E−04
−9.850446E−05


A6
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
−1.719081E−06
 5.343760E−07


A8
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
−3.738848E−09
−2.246461E−09


A10
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
−5.820017E−11
 4.831461E−12





Surface








#
8
9
10
11
12
13





k
0.000000E+00
0.000000E+00
 5.000000E+01
 2.479092E−01
 0.000000E+00
 0.000000E+00


A4
0.000000E+00
0.000000E+00
−3.302623E−04
−8.171152E−05
 0.000000E+00
 0.000000E+00


A6
0.000000E+00
0.000000E+00
−1.454056E−05
−1.433917E−05
 0.000000E+00
 0.000000E+00


A8
0.000000E+00
0.000000E+00
 3.043141E−07
 1.947260E−07
 0.000000E+00
 0.000000E+00


A10
0.000000E+00
0.000000E+00
−2.198225E−09
 4.551927E−09
 0.000000E+00
 0.000000E+00









In the second embodiment, the presentation of the aspheric surface formula is similar to that in the first embodiment. Besides, the definitions of parameters in following tables are equal to those in the first embodiment, so the repetitious details will not be given here.
The following contents may be deduced from Table 3 and Table 4.










Second embodiment (Primary reference wavelength = 587.5 nm)




















ETP1
ETP2
ETP3
ETP4
ETP5
ETP6


8.019
4.818
29.044  
11.716 
1.328
6.976


ETP1/TP1
ETP2/TP2
ETP3/TP3
ETP4/TP4
ETP5/TP5
ETP6/TP6


1.005
1.018
1.000 
0.988
1.106
0.977


ETL
EBL
EIN
EIR
PIR
EIN/ETL


79.155 
3.072
76.084  
0.646
0.600
0.961


SETP/EIN
EIR/PIR
SETP
STP
SETP/STP
BL


0.814
1.077
61.901  
61.958 
0.999
3.026


ED12
ED23
ED34
ED45
ED56
EBL/BL


5.697
6.377
1.972 
0.084
0.053
 1.0152


SED
SIN
SED/SIN
ED12/ED23
ED23/ED34
ED34/ED45


14.183 
14.183 
1.000 
0.893
3.233
23.352 


ED12/IN12
ED23/IN23
ED34/IN34
ED45/IN45
ED56/IN56
ED45/ED56


0.993
0.977
1.085 
1.689
1.056
1.600


|f/f1|
|f/f2|
|f/f3|
|f/f4|
|f/f5|
|f/f6|


 0.07234
 0.22195
0.10868
 0.21671
 0.30823
 0.26654


ΣPPR
ΣNPR
ΣPPR/|ΣNPR|
IN12/f
IN56/f
TP4/(IN34 + TP4 + IN45)


 0.59193
 0.60252
0.98242
 1.82650
 0.01591
 0.86388










|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP6 + IN56)/TP5


 3.06797
 0.48966
2.89882
 5.98484












HOS
InTL
HOS/HOI
InS/HOS
ODT %
TDT %


 79.16600
 76.14030
19.79150 
 0.29730
−122.45700 
 95.97950


HVT51
HVT52
HVT61
HVT62
HVT62/HOI
HVT62/HOS


0   
0   
0.00000
 0.00000
 0.00000
 0.00000


TP2/TP3
TP3/TP4
InRS61
InRS62
|InRS61|/TP6
|InRS62|/TP6


 0.16285
 2.45069
2.05404
 −0.63915
 0.28780
 0.08955


MTFE0
MTFE3
MTFE7
MTFQ0
MTFQ3
MTFQ7


0.87 
0.84 
0.76  
0.63 
0.48 
0.36 


IAG1-IAG4
OAG1-OAG4
BSL





19 deg
19 deg
 0.08 mm









The following contents may be deduced from Table 3 and Table 4.










Related inflection point values of second embodiment


(Primary reference wavelength: 555 nm)






















HIF321
0
HIF321/
0
SGI321
0
|SGI321|/(|SGI321| +
0




HOI



TP3)









The Third Embodiment (Embodiment 3)
Please refer to FIG. 3A, FIG. 3B, and FIG. 3C. FIG. 3A is a schematic view of the optical image capturing system according to the third embodiment of the present application, FIG. 3B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the third embodiment of the present application, and FIG. 3C is a characteristic diagram of modulation transfer of a visible light according to the third embodiment of the present application. As shown in FIG. 3A, in order from an object side to an image side, the optical image capturing system includes an aperture stop 300, a first lens element 310, a second lens element 320, a third lens element 330, a fourth lens element 340, a fifth lens element 350, a sixth lens element 360, an IR-bandstop filter 380, an image plane 390, and an image sensing device 392. In the present embodiment, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the object side and intersect with the optical axis to form angles (not shown).
The first lens element 310 has negative refractive power and it is made of plastic material. The first lens element 310 has a convex object-side surface 312 and a concave image-side surface 314, and both of the object-side surface 312 and the image-side surface 314 are aspheric and have one inflection point.
The second lens element 320 has negative refractive power and it is made of plastic material. The second lens element 320 has a concave object-side surface 322 and a concave image-side surface 324, and both of the object-side surface 322 and the image-side surface 324 are aspheric and have one inflection point.
The third lens element 330 has negative refractive power and it is made of plastic material. The third lens element 330 has a convex object-side surface 332 and a convex image-side surface 334, and both of the object-side surface 332 and the image-side surface 334 are aspheric and have two inflection points.
The fourth lens element 340 has positive refractive power and it is made of plastic material. The fourth lens element 340 has a convex object-side surface 342 and a concave image-side surface 344, and both of the object-side surface 342 and the image-side surface 344 are aspheric and have two inflection points.
The fifth lens element 350 has positive refractive power and it is made of plastic material. The fifth lens element 350 has a concave object-side surface 352 and a convex image-side surface 354, and both of the object-side surface 352 and the image-side surface 354 are aspheric and have one inflection point.
The sixth lens element 360 has negative refractive power and it is made of plastic material. The sixth lens element 360 has a convex object-side surface 362 and a concave image-side surface 364 and both have one inflection point. Hereby, the back focal length is reduced to miniaturize the lens element effectively. In addition, the angle of incident with incoming light from an off-axis view field can be suppressed effectively and the aberration in the off-axis view field can be corrected further.
The IR-bandstop filter 380 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 360 and the image plane 390.
Please refer to the following Table 5 and Table 6.
The detailed data of the optical image capturing system of the third embodiment is as shown in Table 5.







TABLE 5







Lens Parameters of the Third Embodiment


f(focal length) = 6.243 mm; f/HEP = 1.6; HAF(half angle of view) = 50 deg















Thickness

Refractive

Focal


Surface No.
Curvature Radius
(mm)
Material
Index
Abbe No.
Length

















0
Object
1E+18
1E+18






1
Aperture Stop
1E+18
−0.010






2
Lens 1
7.271057662
1.035
Plastic
1.545
55.96
16.789


3

33.32928602
0.000






4

1E+18
0.616






5
Lens 2
14.08987335
0.375
Plastic
1.642
22.46
−23.103


6

7.18049011
0.157






7
Lens 3
18.47477706
0.780
Plastic
1.545
55.96
−55.105


8

11.27777829
0.178






9
Lens 4
4.951165365
0.927
Plastic
1.545
55.96
11.812


10

19.87269999
0.794






11
Lens 5
−5.46880598
1.600
Plastic
1.545
55.96
3.927


12

−1.700151029
0.100






13
Lens 6
3.414823576
1.007
Plastic
1.642
22.46
−4.849


14

1.446290142
1.549






15
IR-bandstop
1E+18
0.500
BK_7
1.517
64.13




Filter








16

1E+18
1.120






17
Image Plane
1E+18
0.000





Reference wavelength = 555 nm; Shield Position: The fourth surface with clear aperture of 1.970 mm






As for the parameters of the aspheric surfaces of the third embodiment, reference is made to Table 6.








TABLE 6





Aspheric Coefficients





















Surface #
2
3
5
6
7
8





k
−1.460957E+01 
0.000000E+00
 0.000000E+00
−1.565098E+01
0.000000E+00
0.000000E+00


A4
9.644842E−03
−6.110283E−03 
−1.550167E−02
−1.769357E−03
1.254246E−03
−1.809760E−02 


A6
−1.058531E−02 
−4.933595E−04 
−1.368995E−04
−2.820005E−03
5.041540E−04
1.059257E−03


A8
7.827041E−03
1.388126E−04
−2.051631E−03
 4.824916E−04
−1.038601E−03 
5.045390E−04


A10
−3.516323E−03 
−2.220587E−04 
 1.637192E−03
 9.935436E−05
3.702266E−04
−2.486326E−04 


A12
8.877810E−04
8.657235E−05
−5.904673E−04
−5.114667E−05
−7.333307E−05 
3.879171E−05


A14
−1.167598E−04 
−1.673947E−05 
 1.013616E−04
 6.810588E−06
7.035409E−06
−2.866746E−06 


A16
5.999381E−06
1.144677E−06
−7.179409E−06
−3.204984E−07
−2.446854E−07 
9.608257E−08


A18
1.181645E−09
0.000000E+00
 0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00


A20
0.000000E+00
0.000000E+00
 0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00





Surface #
9
10
11
12
13
14





k
−3.409466E−01
0.000000E+00
8.280738E−01
−1.338062E+00 
−1.991639E+01 
−4.463550E+00 


A4
−1.661466E−02
−5.475098E−03 
−8.025133E−03 
2.002636E−02
8.708716E−03
1.172766E−06


A6
−1.228381E−03
−1.473030E−03 
−6.341900E−04 
−8.252725E−03 
−2.091124E−03 
−1.920364E−04 


A8
 1.032988E−03
3.253684E−04
4.964465E−04
1.944194E−03
2.499413E−04
9.486614E−06


A10
−2.894210E−04
−5.268586E−05 
−1.749933E−04 
−3.377086E−04 
−2.070370E−05 
−1.975383E−07 


A12
 3.643262E−05
2.927109E−06
3.122181E−05
3.718866E−05
1.050923E−06
1.004622E−09


A14
−2.012345E−06
1.218964E−07
−2.389000E−06 
−2.099656E−06 
−2.875814E−08 
1.261128E−11


A16
 3.907432E−08
−1.046565E−08 
6.516900E−08
4.600067E−08
3.224861E−10
−7.226270E−14 


A18
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00


A20
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00









The presentation of the aspheric surface formula in the third embodiment is similar to that in the first embodiment. Besides, the definitions of parameters in following tables are equal to those in the first embodiment so the repetitious details will not be given here.

The following contents may be deduced from Table 5 and Table 6.










Third embodiment (Primary reference wavelength: 555 nm)




















ETP1
ETP2
ETP3
ETP4
ETP5
ETP6


0.729
0.658
0.668
0.737
1.135
1.356


ETP1/TP1
ETP2/TP2
ETP3/TP3
ETP4/TP4
ETP5/TP5
ETP6/TP6


0.704
1.756
0.856
0.795
0.709
1.347


ETL
EBL
EIN
EIR
PIR
EIN/ETL


10.519 
2.466
8.052
0.846
1.549
0.766


SETP/EIN
EIR/PIR
SETP
STP
SETP/STP
BL


0.656
0.547
5.283
5.724
0.923
3.168


ED12
ED23
ED34
ED45
ED56
EBL/BL


0.546
0.106
0.377
0.335
1.405
 0.7784


SED
SIN
SED/SIN
ED12/ED23
ED23/ED34
ED34/ED45


2.769
1.846
1.500
5.149
0.281
1.124


ED12/IN12
ED23/IN23
ED34/IN34
ED45/IN45
ED56/IN56
ED45/ED56


0.885
0.675
2.114
0.422
14.052 
0.239


|f/f1|
|f/f2|
|f/f3|
|f/f4|
|f/f5|
|f/f6|


 0.37188
 0.27024
 0.11330
 0.52856
 1.58974
 1.28761


ΣPPR
ΣNPR
ΣPPR/|ΣNPR|
IN12/f
IN56/f
TP4/(IN34 + TP4 + IN45)


 2.60348
 1.55785
 1.67120
 0.09874
 0.01602
 0.48784










|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP6 + IN56)/TP5


 0.72670
 0.41924
 4.40478
 0.69179












HOS
InTL
HOS/HOI
InS/HOS
ODT %
TDT %


 10.73830
 7.56981
 1.43177
 0.99907
 1.61720
 1.37111


HVT51
HVT52
HVT61
HVT62
HVT62/HOI
HVT62/HOS


0   
0   
 3.18650
 4.43391
 0.59119
 0.41291


HVT21
HVT22
HVT31
HVT32
HVT41
HVT42


1.017
1.877
1.883
1.217
1.831
1.269


TP2/TP3
TP3/TP4
InRS61
InRS62
|InRS61|/TP6
|InRS62|/TP6


 0.48077
 0.84187
 −0.23331
 0.65096
 0.23172
 0.64653


MTFE0
MTFE3
MTFE7
MTFQ0
MTFQ3
MTFQ7


0.87 
0.77 
0.65 
0.67 
0.38 
0.13 


IAG1-IAG4
OAG1-OAG4
BSL





19 deg
19 deg
   0.08 mm









The following contents may be deduced from Table 5 and Table 6.










Related inflection point values of third embodiment (Primary reference wavelength: 555 nm)






















HIF111
1.5631
HIF111/HOI
0.2084
SGI111
0.1594
|SGI111|/(|SGI111| + TP1)
0.1334


HIF121
0.6175
HIF121/HOI
0.0823
SGI121
0.0048
|SGI121|/(|SGI121| + TP1)
0.0046


HIF211
0.6014
HIF211/HOI
0.0802
SGI211
0.0108
|SGI211|/(|SGI211| + TP2)
0.0279


HIF221
1.0747
HIF221/HOI
0.1433
SGI221
0.0690
|SGI221|/(|SGI221| + TP2)
0.1554


HIF311
1.3349
HIF311/HOI
0.1780
SGI311
0.0493
|SGI311|/(|SGI311| + TP3)
0.0595


HIF312
2.5843
HIF312/HOI
0.3446
SGI312
−0.0657
|SGI312|/(|SGI312| + TP3)
0.0777


HIF321
0.6691
HIF321/HOI
0.0892
SGI321
0.0163
|SGI321|/(|SGI321| + TP3)
0.0205


HIF322
2.6722
HIF322/HOI
0.3563
SGI322
−0.4418
|SGI322|/(|SGI322| + TP3)
0.3616


HIF411
1.0300
HIF411/HOI
0.1373
SGI411
0.0887
|SGI411|/(|SGI411| + TP4)
0.0874


HIF412
2.6951
HIF412/HOI
0.3593
SGI412
−0.0437
|SGI412|/(|SGI412| + TP4)
0.0450


HIF421
0.7648
HIF421/HOI
0.1020
SGI421
0.0126
|SGI421|/(|SGI421| + TP4)
0.0134


HIF422
2.8734
HIF422/HOI
0.3831
SGI422
−0.4829
|SGI422|/(|SGI422| + TP4)
0.3426


HIF511
2.4077
HIF511/HOI
0.3210
SGI511
−0.8235
|SGI511|/(|SGI511| + TP5)
0.3398


HIF521
2.5316
HIF521/HOI
0.3375
SGI521
−1.5688
|SGI521|/(|SGI521| + TP5)
0.4951


HIF611
1.8639
HIF611/HOI
0.2485
SGI611
0.3295
|SGI611|/(|SGI611| + TP6)
0.2466


HIF621
1.7917
HIF621/HOI
0.2389
SGI621
0.6264
|SGI621|/(|SGI621| + TP6)
0.3835









The Fourth Embodiment (Embodiment 4)
Please refer to FIG. 4A, FIG. 4B, and FIG. 4C. FIG. 4A is a schematic view of the optical image capturing system according to the fourth embodiment of the present application, FIG. 4B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the fourth embodiment of the present application, and FIG. 4C is a characteristic diagram of modulation transfer of a visible light according to the fourth embodiment of the present application. As shown in FIG. 4A, in order from an object side to an image side, the optical image capturing system includes an aperture stop 400, a first lens element 410, a second lens element 420, a third lens element 430, a fourth lens element 440, a fifth lens element 450, a sixth lens element 460, an IR-bandstop filter 480, an image plane 490, and an image sensing device 492. In the present embodiment, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the object side and intersect with the optical axis to form angles (not shown).
The first lens element 410 has positive refractive power and it is made of plastic material. The first lens element 410 has a convex object-side surface 412 and a concave image-side surface 414 and both have one inflection point.
The second lens element 420 has negative refractive power and it is made of plastic material. The second lens element 420 has a convex object-side surface 422 and a concave image-side surface 424, and both of the object-side surface 422 and the image-side surface 424 are aspheric and have one inflection point.
The third lens element 430 has negative refractive power and it is made of plastic material. The third lens element 430 has a convex object-side surface 432 and a concave image-side surface 434, and both of the object-side surface 432 and the image-side surface 434 are aspheric and have two inflection points.
The fourth lens element 440 has positive refractive power and it is made of plastic material. The fourth lens element 440 has a convex object-side surface 442 and a concave image-side surface 444, and both of the object-side surface 442 and the image-side surface 444 are aspheric and have two inflection points.
The fifth lens element 450 has positive refractive power and it is made of plastic material. The fifth lens element 450 has a concave object-side surface 452 and a convex image-side surface 454, and both of the object-side surface 452 and the image-side surface 454 are aspheric and have one inflection point.
The sixth lens element 460 has negative refractive power and it is made of plastic material. The sixth lens element 460 has a convex object-side surface 462 and a concave image-side surface 464 and have one inflection point. Hereby, the back focal length is reduced to miniaturize the lens element effectively. In addition, the angle of incident with incoming light from an off-axis view field can be suppressed effectively and the aberration in the off-axis view field can be corrected further.
The IR-bandstop filter 480 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 460 and the image plane 490.
Please refer to the following Table 7 and Table 8.
The detailed data of the optical image capturing system of the fourth embodiment is as shown in Table 7.







TABLE 7







Lens Parameters of the Fourth Embodiment


f = 6.243 mm; f/HEP = 1.7; HAF = 50.000 deg



















Focal


Surface #
Curvature Radius
Thickness
Material
Index
Abbe #
length

















0
Object
1E+18
1E+18






1
Ape. Stop
1E+18
−0.010






2
Lens 1
8.057802026
1.109
Plastic
1.545
55.96
16.125


3

89.95557525
0.000






4

1E+18
0.596






5
Lens 2
14.03878719
0.375
Plastic
1.642
22.46
−27.295


6

7.742481371
0.172






7
Lens 3
24.46403815
0.780
Plastic
1.545
55.96
−29.781


8

9.660902729
0.178






9
Lens 4
4.862669783
0.939
Plastic
1.545
55.96
10.905


10

24.66159883
0.778






11
Lens 5
−5.406092341
1.600
Plastic
1.545
55.96
3.847


12

−1.671423627
0.100






13
Lens 6
3.393740844
0.995
Plastic
1.642
22.46
−4.650


14

1.411726001
1.547






15
IR-bandstop
1E+18
0.500
BK_7
1.517
64.13




filter








16

1E+18
1.120






17
Image plane
1E+18
0.000





Reference wavelength (d-line) = 555 nm; shield position: the fourth surface with clear aperture (CA) of 1.970 mm






As for the parameters of the aspheric surfaces of the fourth embodiment, reference is made to Table 8.







TABLE 8





Aspheric Coefficients





















Surface #
2
3
5
6
7
8





k
−1.212279E+01 
0.000000E+00
0.000000E+00
−1.446121E+01 
0.000000E+00
 0.000000E+00


A4
8.889870E−03
−6.388825E−03 
−1.117168E−02 
5.558050E−03
4.307259E−03
−2.009111E−02


A6
−1.429395E−02 
−2.128624E−03 
−5.143083E−03 
−9.574147E−03 
−1.580444E−03 
 2.229712E−03


A8
1.237155E−02
1.437273E−03
5.532378E−04
3.818339E−03
−1.297741E−04 
−1.714790E−04


A10
−6.330313E−03 
−8.215944E−04 
8.513703E−04
−9.071892E−04 
1.482849E−04
−1.322103E−05


A12
1.830506E−03
2.508048E−04
−4.751372E−04 
1.290354E−04
−4.706618E−05 
−3.386546E−06


A14
−2.786497E−04 
−4.108904E−05 
9.904292E−05
−1.068103E−05 
5.962959E−06
 7.879694E−07


A16
1.707379E−05
2.625075E−06
−8.037240E−06 
3.878597E−07
−2.532473E−07 
−2.736893E−08


A18
1.181645E−09
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00


A20
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00





Surface #
9
10
11
12
13
14





k
−3.304797E−01
 0.000000E+00
7.412582E−01
−1.356689E+00 
−1.991639E+01 
−4.381017E+00


A4
−1.672097E−02
−4.679401E−03
−8.516700E−03 
2.101072E−02
8.590919E−03
−1.061157E−04


A6
 3.388259E−04
−3.425368E−04
−3.112180E−04 
−9.028322E−03 
−2.104724E−03 
−1.899345E−04


A8
 2.289282E−05
−1.679399E−04
6.840615E−04
2.206748E−03
2.548177E−04
 9.138860E−06


A10
−3.420685E−06
 3.457439E−05
−2.492236E−04 
−3.777988E−04 
−2.168604E−05 
−1.641025E−07


A12
−3.073654E−06
−4.219821E−06
4.073403E−05
4.023812E−05
1.136011E−06
−2.162088E−10


A14
 5.661977E−07
 3.346933E−07
−2.926407E−06 
−2.214484E−06 
−3.201766E−08 
 3.188460E−11


A16
−2.457669E−08
−9.918082E−09
7.668857E−08
4.774192E−08
3.683801E−10
−1.851126E−13


A18
 0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00


A20
 0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00









The presentation of the aspheric surface formula in the fourth embodiment is similar to that in the first embodiment. Besides the definitions of parameters in following tables are equal to those in the first embodiment so the repetitious details will not be given here.
The following contents may be deduced from Table 7 and Table 8.










Fourth embodiment (Primary reference wavelength: 555 nm)




















ETP1
ETP2
ETP3
ETP4
ETP5
ETP6


0.837
0.603
0.722
0.752
1.155
1.331


ETP1/TP1
ETP2/TP2
ETP3/TP3
ETP4/TP4
ETP5/TP5
ETP6/TP6


0.754
1.607
0.926
0.801
0.722
1.338


ETL
EBL
EIN
EIR
PIR
EIN/ETL


10.616 
2.510
8.107
0.890
1.547
0.764


SETP/EIN
EIR/PIR
SETP
STP
SETP/STP
BL


0.666
0.575
5.400
5.798
0.948
3.167


ED12
ED23
ED34
ED45
ED56
EBL/BL


0.593
0.108
0.352
0.376
1.278
 0.7925


SED
SIN
SED/SIN
ED12/ED23
ED23/ED34
ED34/ED45


2.707
1.825
1.483
5.469
0.308
0.937


ED12/IN12
ED23/IN23
ED34/IN34
ED45/IN45
ED56/IN56
ED45/ED56


0.994
0.631
1.976
0.483
12.777 
0.294


|f/f1|
|f/f2|
|f/f3|
|f/f4|
|f/f5|
|f/f6|


 0.38720
 0.22874
 0.20964
 0.57252
 1.62301
 1.34275


ΣPPR
ΣNPR
ΣPPR/|ΣNPR|
IN12/f
IN56/f
TP4/(IN34 + TP4 + IN45)


 2.79237
 1.57148
 1.77690
 0.09554
 0.01602
 0.49529










|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP6 + IN56)/TP5


 0.59075
 0.91652
 4.54867
 0.68420












HOS
InTL
HOS/HOI
InS/HOS
ODT %
TDT %


 10.78940
 7.62242
 1.43859
 0.99907
 1.63645
 1.41452


HVT51
HVT52
HVT61
HVT62
HVT62/HOI
HVT62/HOS


0   
0   
 3.12999
 4.39748
 0.58633
 0.40757


HVT21
HVT22
HVT31
HVT32
HVT41
HVT42


1.027
1.856
1.834
1.291
1.884
1.286


TP2/TP3
TP3/TP4
InRS61
InRS62
|InRS61|/TP6
|InRS62|/TP6


 0.48077
 0.83095
 −0.27212
 0.63171
 0.27357
 0.63507


MTFE0
MTFE3
MTFE7
MTFQ0
MTFQ3
MTFQ7


0.87 
0.78 
0.68 
0.68 
0.43 
0.21 


IAG1-IAG4
OAG1-OAG4
BSL





19 deg
19 deg
   0.08 mm









The following contents may be deduced from Table 7 and Table 8.










Related inflection point values of fourth embodiment (Primary reference wavelength: 555 nm)






















HIF111
1.4607
HIF111/HOI
0.1948
SGI111
0.1242
|SGI111|/(|SGI111| + TP1)
0.1007


HIF121
0.3640
HIF121/HOI
0.0485
SGI121
0.0006
|SGI121|/(|SGI121| + TP1)
0.0006


HIF211
0.6203
HIF211/HOI
0.0827
SGI211
0.0118
|SGI211|/(|SGI211| + TP2)
0.0305


HIF221
1.0750
HIF221/HOI
0.1433
SGI221
0.0682
|SGI221|/(|SGI221| + TP2)
0.1539


HIF311
1.3173
HIF311/HOI
0.1756
SGI311
0.0403
|SGI311|/(|SGI311| + TP3)
0.0492


HIF312
2.5200
HIF312/HOI
0.3360
SGI312
−0.0536
|SGI312|/(|SGI312| + TP3)
0.0643


HIF321
0.7040
HIF321/HOI
0.0939
SGI321
0.0210
|SGI321|/(|SGI321| + TP3)
0.0262


HIF322
2.7033
HIF322/HOI
0.3604
SGI322
−0.4428
|SGI322|/(|SGI322| + TP3)
0.3621


HIF411
1.0713
HIF411/HOI
0.1428
SGI411
0.0975
|SGI411|/(|SGI411| + TP4)
0.0941


HIF412
2.8052
HIF412/HOI
0.3740
SGI412
−0.0589
|SGI412|/(|SGI412| + TP4)
0.0591


HIF421
0.7875
HIF421/HOI
0.1050
SGI421
0.0107
|SGI421|/(|SGI421| + TP4)
0.0112


HIF422
2.9333
HIF422/HOI
0.3911
SGI422
−0.5212
|SGI422|/(|SGI422| + TP4)
0.3570


HIF511
2.4453
HIF511/HOI
0.3260
SGI511
−0.8279
|SGI511|/(|SGI511| + TP5)
0.3410


HIF521
2.5304
HIF521/HOI
0.3374
SGI521
−1.5662
|SGI521|/(|SGI521| + TP5)
0.4947


HIF611
1.8333
HIF611/HOI
0.2444
SGI611
0.3205
|SGI611|/(|SGI611| + TP6)
0.2437


HIF621
1.7635
HIF621/HOI
0.2351
SGI621
0.6226
|SGI621|/(|SGI621| + TP6)
0.3849









The Fifth Embodiment (Embodiment 5)
Please refer to FIG. 5A, FIG. 5B, and FIG. 5C. FIG. 5A is a schematic view of the optical image capturing system according to the fifths embodiment of the present application, FIG. 5B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the fifth embodiment of the present application, and FIG. 5C is a characteristic diagram of modulation transfer of a visible light according to the fifth embodiment of the present application. As shown in FIG. 5A, in order from an object side to an image side, the optical image capturing system includes an aperture stop 500, a first lens element 510, a second lens element 520, a third lens element 530, a fourth lens element 540, a fifth lens element 550, a sixth lens element 560, an IR-bandstop filter 580, an image plane 590, and an Image sensing device 592. In the present embodiment, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the object side and intersect with the optical axis to form angles (not shown).
The first lens element 510 has positive refractive power and it is made of plastic material. The first lens element 510 has a convex object-side surface 512 and a concave image-side surface 514, and both of the object-side surface 512 and the image-side surface 514 are aspheric. The object-side surface 512 one inflection point.
The second lens element 520 has negative refractive power and it is made of plastic material. The second lens element 520 has a convex object-side surface 522 and a concave image-side surface 524, and both of the object-side surface 522 and the image-side surface 524 are aspheric and have one inflection point.
The third lens element 530 has negative refractive power and it is made of plastic material. The third lens element 530 has a convex object-side surface 532 and a concave image-side surface 534, and both of the object-side surface 532 and the image-side surface 534 are aspheric. The object-side surface 532 has two inflection points and the image-side surface 534 has one inflection point.
The fourth lens element 540 has positive refractive power and it is made of plastic material. The fourth lens element 540 has a convex object-side surface 542 and a convex image-side surface 544, and both of the object-side surface 542 and the image-side surface 544 are aspheric. The object-side surface 542 has two inflection points and the image-side surface 544 has three inflection points.
The fifth lens element 550 has positive refractive power and it is made of plastic material. The fifth lens element 550 has a concave object-side surface 552 and a concave image-side surface 554, and both of the object-side surface 552 and the image-side surface 554 are aspheric. The object-side surface 552 has two inflection points and the image-side surface 554 has one inflection points.
The sixth lens element 560 has negative refractive power and it is made of plastic material. The sixth lens element 560 has a convex object-side surface 562 and a concave image-side surface 564 and both have one inflection points. Hereby, the back focal length is reduced to miniaturize the lens element effectively. In addition, the angle of incident with incoming light from an off-axis view field can be suppressed effectively and the aberration in the off-axis view field can be corrected further.
The IR-bandstop filter 580 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 560 and the image plane 590.
Please refer to the following Table 9 and Table 10.
The detailed data of the optical image capturing system of the fifth embodiment is as shown in Table 9.







TABLE 9







Lens Parameters of the Fifth Embodiment


f = 6.818 mm; f/HEP = 1.8; HAF = 40.001 deg















Thickness

Refrative

Focal


Surface#
Curvature Radius
(mm)
Material
Index
Abbe #
Length

















0
Object
1E+18
1E+18






1
Ape. Stop
1E+18
−0.010






2
Lens 1
12.61363216
1.468
Plastic
1.545
55.96
16.924


3

−33.19428616
0.000






4

1E+18
0.394






5
Lens 2
4.994073177
0.420
Plastic
1.642
22.46
−31.850


6

3.88771629
0.443






7
Lens 3
25.05729556
1.324
Plastic
1.545
55.96
−36.812


8

10.94794859
0.302






9
Lens 4
5.77490198
1.092
Plastic
1.545
55.96
9.159


10

−34.95858179
0.543






11
Lens 5
−5.010271189
1.600
Plastic
1.545
55.96
5.482


12

−2.085758115
0.100






13
Lens 6
3.658544308
1.181
Plastic
1.642
22.46
−5.937


14

1.636828358
1.533






15
IR-bandstop
1E+18
0.500
BK_7
1.517
64.13




filter








16

1E+18
1.100






17
Image plane
1E+18
0.000





Reference wavelength (d-line) = 555 nm; shield position: the fourth surface with clear aperture (CA) of 0.400 mm, and the twelfth surface with clear aperture (CA) of 0.350 mm






As for the parameters of the aspheric surfaces of the fifth embodiment, reference is made to Table 10.








TABLE 10





Aspheric Coefficients





















Surface #
2
3
5
6
7
8





k
−2.154002E+01
0.000000E+00
0.000000E+00
−4.877941E+00
0.000000E+00
0.000000E+00


A4
 4.958444E−04
−9.901071E−03 
−2.294751E−02 
−9.256067E−03
−8.129537E−03 
−1.828150E−02 


A6
−8.716566E−04
2.443343E−03
2.116273E−03
 1.687624E−03
2.272044E−03
1.992326E−03


A8
 3.438924E−04
−1.176230E−03 
−8.755789E−04 
−6.707035E−04
−2.817394E−04 
−5.181004E−04 


A10
−1.067811E−04
3.430926E−04
1.776432E−04
 1.492238E−04
6.078560E−06
1.145120E−04


A12
 1.427377E−05
−6.163727E−05 
−1.963764E−05 
−1.882012E−05
−2.387619E−06 
−1.524611E−05 


A14
−2.319405E−07
5.906200E−06
1.294723E−06
 1.149004E−06
5.106288E−07
1.020588E−06


A16
−1.050969E−07
−2.442890E−07 
−1.039606E−07 
−2.507641E−08
−2.373370E−08 
−2.614053E−08 


A18
 1.181645E−09
0.000000E+00
0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00


A20
 0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00





Surface #
9
10
11
12
13
14





k
1.542058E−01
0.000000E+00
3.395539E−01
−1.467261E+00 
−1.317909E+01 
−3.753660E+00


A4
−7.586452E−03 
−2.252289E−03 
−5.942015E−03 
9.537452E−03
5.447313E−03
−5.851852E−04


A6
9.152177E−04
3.631823E−03
3.936144E−03
−2.147519E−03 
−1.757850E−03 
−3.292009E−04


A8
−4.082013E−04 
−1.058610E−03 
−7.608715E−04 
3.200007E−04
1.736378E−04
 2.983171E−05


A10
5.370310E−05
1.349943E−04
8.169447E−05
−4.142294E−05 
−1.083374E−05 
−1.302089E−06


A12
−3.156241E−06 
−9.431293E−06 
−4.717340E−06 
3.915725E−06
4.276187E−07
 3.053732E−08


A14
9.194652E−08
3.528420E−07
1.420139E−07
−1.836973E−07 
−9.549953E−09 
−3.640074E−10


A16
−1.127932E−09 
−5.472551E−09 
−1.789984E−09 
3.184595E−09
9.172003E−11
 1.689614E−12


A18
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00


A20
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00









The presentation of the aspheric surface formula in the fifth embodiment is similar to that in the first embodiment. Besides the definitions of parameters in following tables are equal to those in the first embodiment so the repetitious details will not be given here.
The following contents may be deduced from Table 9 and Table 10.










Fifth embodiment (Primary reference wavelength: 555 nm)




















ETP1
ETP2
ETP3
ETP4
ETP5
ETP6


1.118
0.697
1.228
0.818
1.146
1.580


ETP1/TP1
ETP2/TP2
ETP3/TP3
ETP4/TP4
ETP5/TP5
ETP6/TP6


0.762
1.659
0.927
0.749
0.716
1.338


ETL
EBL
EIN
EIR
PIR
EIN/ETL


11.874 
2.353
9.521
0.753
1.533
0.802


SETP/EIN
EIR/PIR
SETP
STP
SETP/STP
BL


0.692
0.491
6.586
7.085
0.930
3.133


ED12
ED23
ED34
ED45
ED56
EBL/BL


0.659
0.149
0.619
0.138
1.369
 0.7510


SED
SIN
SED/SIN
ED12/ED23
ED23/ED34
ED34/ED45


2.935
1.782
1.647
4.412
0.241
4.468


ED12/IN12
ED23/IN23
ED34/IN34
ED45/IN45
ED56/IN56
ED45/ED56


1.672
0.337
2.052
0.255
13.693 
0.101


|f/f1|
|f/f2|
|f/f3|
|f/f4|
|f/f5|
|f/f6|


 0.39967
 0.21237
 0.18374
 0.73847
 1.23392
 1.13936


ΣPPR
ΣNPR
ΣPPR/|ΣNPR|
IN12/f
IN56/f
TP4/(IN34 + TP4 + IN45)


 2.37206
 1.53547
 1.54485
 0.05823
 0.01478
 0.56389










|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP6 + IN56)/TP5


 0.53136
 0.86520
 4.43269
 0.80056












HOS
InTL
HOS/HOI
InS/HOS
ODT %
TDT %


 12.00000
 8.86651
 1.60000
 0.99917
 1.60860
 0.80934


HVT51
HVT52
HVT61
HVT62
HVT62/HOI
HVT62/HOS


 3.34833
 3.54262
 2.81428
 4.49754
 0.59967
 0.37480


HVT21
HVT22
HVT31
HVT32
HVT41
HVT42


1.586
2.299
1.896
1.223
2.255
0.000


TP2/TP3
TP3/TP4
InRS61
InRS62
|InRS61|/TP6
|InRS62|/TP6


 0.31718
 1.21263
 −0.47223
 0.78739
 0.39989
 0.66678


MTFE0
MTFE3
MTFE7
MTFQ0
MTFQ3
MTFQ7


0.88 
0.83 
0.65 
0.69 
0.54 
0.2 


IAG1-IAG4
OAG1-OAG4
BSL





19 deg
19 deg
   0.08 mm









The following contents may be deduced from Table 9 and Table 10.










Related inflection point values of fifth embodiment (Primary reference wavelength: 555 nm)






















HIF111
1.5224
HIF111/HOI
0.2030
SGI111
0.0825
|SGI111|/(|SGI111| + TP1)
0.0532


HIF211
0.9218
HIF211/HOI
0.1229
SGI211
0.0702
|SGI211|/(|SGI211| + TP2)
0.1431


HIF221
1.3161
HIF221/HOI
0.1755
SGI221
0.1792
|SGI221|/(|SGI221| + TP2)
0.2991


HIF311
0.8311
HIF311/HOI
0.1108
SGI311
0.0106
|SGI311|/(|SGI311| + TP3)
0.0079


HIF312
2.8758
HIF312/HOI
0.3834
SGI312
−0.1202
|SGI312|/(|SGI312| + TP3)
0.0832


HIF321
0.6832
HIF321/HOI
0.0911
SGI321
0.0175
|SGI321|/(|SGI321| + TP3)
0.0131


HIF411
1.4222
HIF411/HOI
0.1896
SGI411
0.1496
|SGI411|/(|SGI411| + TP4)
0.1205


HIF412
3.1615
HIF412/HOI
0.4215
SGI412
0.0530
|SGI412|/(|SGI412| + TP4)
0.0463


HIF421
0.9548
HIF421/HOI
0.1273
SGI421
−0.0128
|SGI421|/(|SGI421| + TP4)
0.0116


HIF422
1.7158
HIF422/HOI
0.2288
SGI422
−0.0241
|SGI422|/(|SGI422| + TP4)
0.0216


HIF423
3.5691
HIF423/HOI
0.4759
SGI423
−0.5229
|SGI423|/(|SGI423| + TP4)
0.3238


HIF511
2.3490
HIF511/HOI
0.3132
SGI511
−0.5182
|SGI511|/(|SGI511| + TP5)
0.2446


HIF512
3.8501
HIF512/HOI
0.5134
SGI512
−0.6690
|SGI512|/(|SGI512| + TP5)
0.2948


HIF521
2.6311
HIF521/HOI
0.3508
SGI521
−1.3016
|SGI521|/(|SGI521| + TP5)
0.4486


HIF611
1.5772
HIF611/HOI
0.2103
SGI611
0.2546
|SGI611|/(|SGI611| + TP6)
0.1774


HIF621
1.7352
HIF621/HOI
0.2314
SGI621
0.5962
|SGI621|/(|SGI621| + TP6)
0.3355









The Sixth Embodiment (Embodiment 6)
Please refer to FIG. 6A, FIG. 6B, and FIG. 6C. FIG. 6A is a schematic view of the optical image capturing system according to the sixth Embodiment of the present application, FIG. 6B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the sixth Embodiment of the present application, and FIG. 6C is a characteristic diagram of modulation transfer of a visible light according to the sixth embodiment of the present application. As shown in FIG. 6A, in the order from an object side to an image side, the optical image capturing system includes an aperture stop 600, a first lens element 610, a second lens element 620, a third lens element 630, a fourth lens element 640, a fifth lens element 650, a sixth lens element 660, an IR-bandstop filter 680, an image plane 690, and an image sensing device 692. In the present embodiment, all of the bearing surfaces of image side and all of the bearing surfaces of object side of the lens elements are configured to extend toward the object side and intersect with the optical axis to form angles (not shown).
The first lens element 610 has positive refractive power and it is made of plastic material. The first lens element 610 has a convex object-side surface 612 and a concave image-side surface 614, and both of the object-side surface 612 and the image-side surface 614 are aspheric and have one inflection.
The second lens element 620 has negative refractive power and it is made of plastic material. The second lens element 620 has a convex object-side surface 622 and a concave image-side surface 624, and both of the object-side surface 622 and the image-side surface 624 are aspheric and both have one inflection point.
The third lens element 630 has negative refractive power and it is made of plastic material. The third lens element 630 has a concave object-side surface 632 and a concave image-side surface 634, and both of the object-side surface 632 and the image-side surface 634 are aspheric. The object-side surface 632 has three inflection points and the image-side surface 634 has two inflection points.
The fourth lens element 640 has positive refractive power and it is made of plastic material. The fourth lens element 640 has a convex object-side surface 642 and a convex image-side surface 644, and both of the object-side surface 642 and the image-side surface 644 are aspheric. The object-side surface 642 has three inflection points and the image-side surface 644 has three inflection points.
The fifth lens element 650 has positive refractive power and it is made of plastic material. The fifth lens element 650 has a concave object-side surface 652 and a convex image-side surface 654, and both of the object-side surface 652 and the image-side surface 654 are aspheric and have one inflection point.
The sixth lens element 660 has negative refractive power and it is made of plastic material. The sixth lens element 660 has a convex object-side surface 662 and a concave image-side surface 664. The object-side surface 662 and the image-side surface 664 both have one inflection point. Hereby, the back focal length is reduced to miniaturize the lens element effectively. In addition, the angle of incident with incoming light from an off-axis view field can be suppressed effectively and the aberration in the off-axis view field can be corrected further.
The IR-bandstop filter 680 is made of glass material without affecting the focal length of the optical image capturing system and it is disposed between the sixth lens element 660 and the image plane 690.
Please refer to the following Table 11 and Table 12.
The detailed data of the optical image capturing system of the sixth Embodiment is as shown in Table 11.







TABLE 11







Lens Parameters of the Sixth Embodiment


f = 6.818 mm; f/HEP = 1.7; HAF = 47.500 deg















Thickness

Refractive

Focal


Surface#
Curvature Radius
(mm)
Material
Index
Abbe #
length

















0
Object
1E+18
1E+18






1
Ape. Stop
1E+18
−0.208






2
Lens 1
6.264577482
1.030
Plastic
1.545
55.96
18.199


3

15.95420025
0.000






4

1E+18
0.539






5
Lens 2
6.539818499
0.420
Plastic
1.642
22.46
−28.382


6

4.701842187
0.316






7
Lens 3
−55.08955165
0.804
Plastic
1.545
55.96
−40.879


8

37.74867922
0.100






9
Lens 4
5.151705426
1.084
Plastic
1.545
55.96
8.081


10

−28.56269891
1.071






11
Lens 5
−3.798094812
1.600
Plastic
1.545
55.96
5.451


12

−1.917611538
0.100






13
Lens 6
4.340492538
1.237
Plastic
1.642
22.46
−5.891


14

1.802984477
1.422






15
IR-bandstop
1E+18
0.500
BK_7
1.517
64.13




filter








16

1E+18
1.100






17
Image plane
1E+18
0.000





Reference wavelength (d-line) = 555 nm; shield position: the fourth surface with clear aperture (CA) of 2.250 mm, and the fourteenth surface with clear aperture (CA) of 6.350 mm






As for the parameters of the aspheric surfaces of the sixth Embodiment, reference is made to Table 12.








TABLE 12





Aspheric Coefficients





















Surface #
2
3
5
6
7
8





k
−3.955429E+00
0.000000E+00
0.000000E+00
−1.342063E+01
0.000000E+00
0.000000E+00


A4
 1.662411E−03
−8.130280E−03 
−2.571481E−02 
−1.128980E−03
1.060999E−02
−1.232767E−02 


A6
−3.313249E−04
2.373055E−03
−1.385310E−03 
−6.085644E−03
−5.528894E−03 
−2.417219E−03 


A8
−1.155642E−04
−1.795080E−03 
1.016030E−03
 2.663015E−03
2.608940E−03
4.934894E−04


A10
 1.758470E−04
7.469418E−04
−4.111754E−04 
−7.190347E−04
−7.611866E−04 
1.762668E−04


A12
−8.432801E−05
−1.897586E−04 
1.161136E−04
 1.191082E−04
1.184948E−04
−6.598018E−05 


A14
 1.743503E−05
2.525790E−05
−1.802905E−05 
−1.118093E−05
−9.827191E−06 
7.306262E−06


A16
−1.411008E−06
−1.464132E−06 
9.482279E−07
 4.408408E−07
3.455075E−07
−2.698999E−07 


A18
 1.181645E−09
0.000000E+00
0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00


A20
 0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00
0.000000E+00
0.000000E+00





Surface #
9
10
11
12
13
14





k
−5.515447E−01
0.000000E+00
5.446828E−02
−1.204464E+00 
−1.991995E+01 
−4.215265E+00


A4
−1.616212E−02
−5.362487E−03 
−1.121884E−02 
1.198927E−02
8.763047E−03
−4.425719E−04


A6
 2.320539E−03
4.117621E−03
3.703769E−03
−3.250735E−03 
−2.476974E−03 
−2.630633E−04


A8
−1.579033E−03
−2.031325E−03 
−6.058662E−04 
5.896183E−04
3.091503E−04
 2.287113E−05


A10
 4.839010E−04
4.086486E−04
−2.024576E−05 
−9.039620E−05 
−2.569637E−05 
−1.089153E−06


A12
−7.342250E−05
−4.384614E−05 
1.549633E−05
8.911511E−06
1.313381E−06
 3.060474E−08


A14
 5.415816E−06
2.478512E−06
−1.379098E−06 
−4.488463E−07 
−3.671390E−08 
−4.734783E−10


A16
−1.534863E−07
−5.720281E−08 
3.830907E−08
8.920949E−09
4.263517E−10
 3.083431E−12


A18
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00


A20
 0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
 0.000000E+00









In the sixth Embodiment, the presentation of the aspheric surface formula is similar to that in the first embodiment. Besides, the definitions of parameters in following tables are equal to those in the first embodiment, so the repetitious details will not be given here.
The following contents may be deduced from Table 11 and Table 12.










Sixth embodiment (Primary reference wavelength: 555 nm)




















ETP1
ETP2
ETP3
ETP4
ETP5
ETP6


0.719
0.703
0.627
0.792
1.328
1.583


ETP1/TP1
ETP2/TP2
ETP3/TP3
ETP4/TP4
ETP5/TP5
ETP6/TP6


0.698
1.674
0.780
0.731
0.830
1.280


ETL
EBL
EIN
EIR
PIR
EIN/ETL


11.020 
2.351
8.669
0.751
1.422
0.787


SETP/EIN
EIR/PIR
SETP
STP
SETP/STP
BL


0.664
0.528
5.752
6.175
0.931
3.022


ED12
ED23
ED34
ED45
ED56
EBL/BL


0.438
0.156
0.416
0.559
1.348
 0.7780


SED
SIN
SED/SIN
ED12/ED23
ED23/ED34
ED34/ED45


2.917
2.126
1.372
2.809
0.375
0.744


ED12/IN12
ED23/IN23
ED34/IN34
ED45/IN45
ED56/IN56
ED45/ED56


0.813
0.494
4.158
0.521
13.482 
0.414


|f/f1|
|f/f2|
|f/f3|
|f/f4|
|f/f5|
|f/f6|


 0.37463
 0.24021
 0.16678
 0.84363
 1.25064
 1.15739


ΣPPR
ΣNPR
ΣPPR/|ΣNPR|
IN12/f
IN56/f
TP4/(IN34 + TP4 + IN45)


 2.46890
 1.56438
 1.57820
 0.07905
 0.01467
 0.48068










|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP6 + IN56)/TP5


 0.64121
 0.69428
 3.73517
 0.83548












HOS
InTL
HOS/HOI
InS/HOS
ODT %
TDT %


 11.32350
 8.30152
 1.50980
 0.98160
 1.60072
 1.04747


HVT51
HVT52
HVT61
HVT62
HVT62/HOI
HVT62/HOS


0   
0   
 2.94083
 4.33781
 0.57837
 0.38308


HVT21
HVT22
HVT31
HVT32
HVT41
HVT42


1.214
1.887
0.000
0.693
1.820
0.000


TP2/TP3
TP3/TP4
InRS61
InRS62
|InRS61|/TP6
|InRS62|/TP6


 0.52215
 0.74186
 −0.45017
 0.64189
 0.36399
 0.51901


MTFE0
MTFE3
MTFE7
MTFQ0
MTFQ3
MTFQ7


0.86 
0.8 
0.7 
0.64 
0.47 
0.22 


IAG1-IAG4
OAG1-OAG4
BSL





19 deg
19 deg
   0.08 mm









The following contents may be deduced from Table 11 and Table 12.










Related inflection point values of sixth embodiment (primary reference wavelength: 555 nm)






















HIF111
1.8428
HIF111/HOI
0.2457
SGI111
0.2625
|SGI111|/(|SGI111| + TP1)
0.2031


HIF121
0.8909
HIF121/HOI
0.1188
SGI121
0.0204
|SGI121|/(|SGI121| + TP1)
0.0195


HIF211
0.6985
HIF211/HOI
0.0931
SGI211
0.0312
|SGI211|/(|SGI211| + TP2)
0.0691


HIF221
1.0303
HIF221/HOI
0.1374
SGI221
0.0938
|SGI221|/(|SGI221| + TP2)
0.1825


HIF311
0.4218
HIF311/HOI
0.0562
SGI311
−0.0013
|SGI311|/(|SGI311| + TP3)
0.0016


HIF312
1.6162
HIF312/HOI
0.2155
SGI312
0.0093
|SGI312|/(|SGI312| + TP3)
0.0114


HIF313
2.7371
HIF313/HOI
0.3650
SGI313
−0.1806
|SGI313|/(|SGI313| + TP3)
0.1834


HIF321
0.4079
HIF321/HOI
0.0544
SGI321
0.0019
|SGI321|/(|SGI321| + TP3)
0.0023


HIF322
2.7006
HIF322/HOI
0.3601
SGI322
−0.5342
|SGI322|/(|SGI322| + TP3)
0.3991


HIF411
1.0557
HIF411/HOI
0.1408
SGI411
0.0901
|SGI411|/(|SGI411| + TP4)
0.0767


HIF412
2.8647
HIF412/HOI
0.3820
SGI412
−0.1390
|SGI412|/(|SGI412| + TP4)
0.1136


HIF413
3.1910
HIF413/HOI
0.4255
SGI413
−0.3048
|SGI413|/(|SGI413| + TP4)
0.2194


HIF421
2.9806
HIF421/HOI
0.3974
SGI421
−0.6816
|SGI421|/(|SGI421| + TP4)
0.3860


HIF422
3.3860
HIF422/HOI
0.4515
SGI422
−0.9684
|SGI422|/(|SGI422| + TP4)
0.4718


HIF511
2.5984
HIF511/HOI
0.3464
SGI511
−1.2017
|SGI511|/(|SGI511| + TP5)
0.4289


HIF521
2.9497
HIF521/HOI
0.3933
SGI521
−1.9425
|SGI521|/(|SGI521| + TP5)
0.5483


HIF611
1.7038
HIF611/HOI
0.2272
SGI611
0.2552
|SGI611|/(|SGI611| + TP6)
0.1710


HIF621
1.7911
HIF621/HOI
0.2388
SGI621
0.5736
|SGI621|/(|SGI621| + TP6)
0.3168









The above-mentioned descriptions represent merely the exemplary embodiment of the present disclosure, without any intention to limit the scope of the present disclosure thereto. Various equivalent changes, alternations or modifications based on the claims of present disclosure are all consequently viewed as being embraced by the scope of the present disclosure.

## Claims

1. An optical image capturing system, from an object side to an image side, comprising:
a first lens element with refractive power and having a first bearing surface of image side on an image-side surface thereof;
a second lens element with refractive power and having a second bearing surface of object side on an object-side surface thereof and a second bearing surface of image side on an image-side surface thereof; and the second bearing surface of object side contacting with the first bearing surface of image side;
a third lens element with refractive power;
a fourth lens element with refractive power;
a fifth lens element with refractive power;
a sixth lens element with refractive power; and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, at least one lens element among the first through sixth lens elements has positive refractive power, focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6 respectively, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, a distance on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a distance on an optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL, a half of a maximum view angle of the optical image capturing system is HAF, thicknesses in parallel with an optical axis of the first through sixth lens elements at height 1⁄2 HEP respectively are ETP1, ETP2, ETP3, ETP4, ETP5 and ETP6, a sum of ETP1 to ETP6 described above is SETP, thicknesses of the first through sixth lens elements on the optical axis respectively are TP1, TP2, TP3, TP4, TP5 and TP6, a sum of TP1 to TP6 described above is STP, and the following conditions are satisfied: 1.0≦f/HEP≦10.0, 0 deg<HAF≦150 deg and 0.5≦SETP/STP<1.

2. The optical image capturing system of claim 1, wherein the third lens element has a third bearing surface of object side on an object-side surface thereof and a third bearing surface of image side on an image-side surface thereof; and the third bearing surface of object side contacts with the second bearing surface of image side.

3. The optical image capturing system of claim 2, wherein the fourth lens element has a fourth bearing surface of object side on an object-side surface thereof and a fourth bearing surface of image side on an image-side surface thereof; and the fourth bearing surface of object side contacts with the third bearing surface of image side.

4. The optical image capturing system of claim 2, wherein extension lines of the first bearing surface of image side to the third bearing surface of image side intersect with the optical axis to form angles IAG, which are denoted as IAG1, IAG2, IAG3 respectively, and the following conditions are satisfied: 0 deg<IAG≦90 deg.

5. The optical image capturing system of claim 4, wherein IAG1, IAG2, IAG3 satisfy with the following condition: IAG1=IAG2=IAG3.

6. The optical image capturing system of claim 2, wherein extension lines of the second bearing surface of object side to the third bearing surface of object side intersect with the optical axis to form angles OAG, which are denoted as OAG2 and OAG3 respectively, and the following conditions are satisfied: 0 deg<OAG≦90 deg.

7. The optical image capturing system of claim 6, wherein OAG2 and OAG3 satisfy with the following condition: OAG2=OAG3.

8. The optical image capturing system of claim 1, wherein modulation transfer rates at spatial frequency of 55 cycles/mm (values of MTF) of a visible light at the optical axis on the image plane, 0.3 HOI and 0.7 HOI are respectively denoted by MTFE0, MTFE3 and MTFE7, and the following conditions are satisfied: MTFE0≧0.2, MTFE3≧0.01 and MTFE7≧0.01.

9. The optical image capturing system of claim 1, further comprising an aperture stop, a distance from the aperture stop to the image plane on the optical axis is InS, and the following condition is satisfied: 0.2≦InS/HOS≦1.1.

10. An optical image capturing system, from an object side to an image side, comprising:
a first lens element with refractive power and having a first bearing surface of image side on an image-side surface thereof;
a second lens element with refractive power and having a second bearing surface of object side on an object-side surface thereof and a second bearing surface of image side on an image-side surface thereof; and the second bearing surface of object side contacting with the first bearing surface of image side;
a third lens element with refractive power and having a third bearing surface of object side on an object-side surface thereof and a third bearing surface of image side on an image-side surface thereof; and the third bearing surface of object side contacting with the second bearing surface of image side;
a fourth lens element with refractive power;
a fifth lens element with refractive power;
a sixth lens element with refractive power; and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, at least one lens element among the first through third lens elements has positive refractive power, at least one lens element among the fourth through sixth lens elements has positive refractive power; extension lines of the first bearing surface of image side to the second bearing surface of image side intersect with the optical axis to form angles IAG, which are denoted as IAG1 and IAG2, extension lines of the second bearing surface of object side to the third bearing surface of object side intersect with the optical axis to form angles OAG, which are denoted as OAG2 and OAG3, focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6 respectively, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, a distance on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a distance on an optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL, a half of a maximum view angle of the optical image capturing system is HAF, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to the image plane is ETL, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP is EIN, and the following conditions are satisfied: 0 deg<IAG≦90 deg, 0 deg<OAG≦90 deg, 1.0≦f/HEP≦10.0, 0 deg<HAF≦150 deg and 0.2≦EIN/ETL<1.

11. The optical image capturing system of claim 10, wherein IAG1 and IAG2 satisfy with the following condition: IAG1=IAG2.

12. The optical image capturing system of claim 10, wherein OAG2 and OAG3 satisfy with the following condition: OAG2=OAG3.

13. The optical image capturing system of claim 10, wherein the following conditions are satisfied: 0 deg<IAG≦45 deg; 0 deg<OAG≦45 deg.

14. The optical image capturing system of claim 10, wherein a horizontal distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the image plane is EBL, a horizontal distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the image plane is BL, and the following condition is satisfied: 0.2≦EBL/BL<2.

15. The optical image capturing system of claim 10, wherein the optical image capturing system comprises a light filter which is disposed between the sixth lens element and the image plane, a distance in parallel with the optical axis from a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP to the light filtration element is EIR, and a distance in parallel with the optical axis from an axial point on the image-side surface of the sixth lens element to the light filtration element is PIR; the embodiments of the present invention may satisfy the following condition: 0.2≦EIR/PIR≦2.

16. The optical image capturing system of claim 10, wherein thicknesses in parallel with the optical axis of the first, second, third fourth, fifth and sixth lens elements at height 1⁄2 HEP respectively are ETP1, ETP2, ETP3, ETP4 ETP 5 and ETP6; a sum of ETP1 to ETP6 described above is SETP; the following conditions are satisfied: 0.2≦SETP/EIN≦1.

17. The optical image capturing system of claim 10, wherein a thickness in parallel with the optical axis of the sixth lens element at height 1⁄2 HEP is ETP4, a thickness of the sixth lens element on the optical axis is TP6, and the following condition is satisfied: 0<ETP6/TP6≦5.

18. The optical image capturing system of claim 10, wherein a visible light spectrum has a maximum height of image capturing HOI perpendicular to the optical axis on the image plane, modulation transfer rates at spatial frequency of 110 cycles/mm at the optical axis on the image plane, 0.3 HOI and 0.7 HOI are respectively denoted by MTFQ0, MTFQ3 and MTFQ7, and the following conditions are satisfied: MTFQ0≧0.2, MTFQ3≧0.01 and MTFQ7≧0.01.

19. The optical image capturing system of claim 10, wherein at least one of the first, the second, the third, the fourth, the fifth and the sixth lens elements is a light filtration element for light with wavelength of less than 500 nm.

20. An optical image capturing system, from an object side to an image side, comprising:
a first lens element with refractive power and having a first bearing surface of image side on an image-side surface thereof;
a second lens element with refractive power and having a second bearing surface of object side on an object-side surface thereof and a second bearing surface of image side on an image-side surface thereof; and the second bearing surface of object side contacting with the first bearing surface of image side;
a third lens element with refractive power and having a third bearing surface of object side on an object-side surface thereof and a third bearing surface of image side on an image-side surface thereof; and the third bearing surface of object side contacting with the second bearing surface of image side;
a fourth lens element with positive refractive power and having a fourth bearing surface of object side on an object-side surface thereof and a fourth bearing surface of image side on an image-side surface thereof; and the fourth bearing surface of object side contacting with the third bearing surface of image side;
a fifth lens element with refractive power;
a sixth lens element with refractive power, and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, extension lines of the first bearing surface of image side to the third bearing surface of image side intersect with the optical axis to form angles IAG, which are denoted as IAG1, IAG2 and IAG3, extension lines of the second bearing surface of object side to the fourth bearing surface of object side intersect with the optical axis to form angles OAG, which are denoted as OAG2, OAG 3 and OAG4, at least one lens element among the first through third lens elements has positive refractive power, at least one lens element among the fourth through sixth lens elements has positive refractive power, focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5 and f6 respectively, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, a distance on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a distance on an optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element is InTL, a half of maximum view angle of the optical image capturing system is HAF, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to the image plane is ETL, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height 1⁄2 HEP to a coordinate point on the image-side surface of the sixth lens element at height 1⁄2 HEP is EIN, and the following conditions are satisfied: 0 deg<IAG≦45 deg, 0 deg<OAG≦45 deg, 1.0≦f/HEP≦10, 0 deg<HAF≦150 deg and 0.2≦EIN/ETL<1.

21. The optical image capturing system of claim 20, wherein extension lines of the first bearing surface of image side to the third bearing surface of image side, and extension lines of the second bearing surface of object side to the fourth bearing surface of object side extend toward the object side and intersect with the optical axis.

22. The optical image capturing system of claim 20, wherein extension lines of the first bearing surface of image side to the third bearing surface of image side, and extension lines of the second bearing surface of object side to the fourth bearing surface of object side extend toward the image plane and intersect the optical axis.

23. The optical image capturing system of claim 20, wherein the bearing surface of image sides and the bearing surface of object sides have a radial length of BSL, and the following condition is satisfied: 0.01 mm≦BSL≦1 mm.

24. The optical image capturing system of claim 20, wherein the image plane is a plane or a curved surface.

25. The optical image capturing system of claim 20, further comprising an aperture stop, an image sensing device and a driving module, the image sensing device is disposed on the image plane, a distance from the aperture stop to the image plane on the optical axis is InS, the driving module is capable of coupling with the six lens elements and driving movements of the six lens elements, and the following condition is satisfied: 0.2≦InS/HOS≦1.1.