OPTICAL IMAGE CAPTURING SYSTEM

BACKGROUND OF THE INVENTION
Technical Field

The present invention relates generally to an optical system, and more particularly to a compact optical image capturing system for an electronic device.

Description of 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 the 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 the pixel size of the image sensing device, the development of the optical image capturing system towards the field of high pixels. Therefore, the requirement for high imaging quality is rapidly raised.

The conventional optical system of the portable electronic device usually has five or six lenses. However, the optical system is asked to take pictures in a dark environment, in other words, the optical system is asked to have a large aperture. The conventional optical system provides high optical performance as required.

It is an important issue to increase the quantity of light entering the lens. In addition, the modem lens is also asked to have several characters, including high image quality.

BRIEF 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 seven-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 on an optical axis) to increase the quantity of incoming light of 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 parameter in the embodiment of the present are shown as below for further reference.

The lens parameter related to a length or a height in the lens:

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 to the image-side surface of the seventh lens is denoted by InTL. A distance from the first lens to the second lens is denoted by IN12 (instance). A central thickness of the first lens of the optical image capturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens in the optical image capturing system is denoted by NA1 (instance). A refractive index of the first lens is denoted by Nd1 (instance).

The lens parameter related to a view angle in the lens.

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 parameter related to exit/entrance pupil in the lens:

An entrance pupil diameter of the optical image capturing system is denoted by HEP. For any surface of any lens, a maximum effective half diameter (EHD) is a perpendicular distance between an optical axis and a crossing point on the surface where the incident light with a maximum viewing angle of the system passing the very edge of the entrance pupil. For example, the maximum effective half diameter of the object-side surface of the first lens is denoted by EHD11, the maximum effective half diameter of the image-side surface of the first lens is denoted by EHD12, the maximum effective half diameter of the object-side surface of the second lens is denoted by EHD21, the maximum effective half diameter of the image-side surface of the second lens is denoted by EHD22, and so on.

The lens parameter related to an arc length of the shape of a surface and a surface profile:

For any surface of any lens, a profile curve length of the maximum effective half diameter is, by definition, measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to an end point of the maximum effective half diameter thereof. In other words, the curve length between the aforementioned start and end points is the profile curve length of the maximum effective half diameter, which is denoted by ARS. For example, the profile curve length of the maximum effective half diameter of the object-side surface of the first lens is denoted by ARS11, the profile curve length of the maximum effective half diameter of the image-side surface of the first lens is denoted by ARS12, the profile curve length of the maximum effective half diameter of the object-side surface of the second lens is denoted by ARS21, the profile curve length of the maximum effective half diameter of the image-side surface of the second lens is denoted by ARS22, and so on.

For any surface of any lens, a profile curve length of a half of the entrance pupil diameter (HEP) is, by definition, measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis. In other words, the curve length between the aforementioned stat point and the coordinate point is the profile curve length of a half of the entrance pupil diameter (HEP), and is denoted by ARE. For example, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the first lens is denoted by ARE11, the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens is denoted by ARE12, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the second lens is denoted by ARE21, the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens is denoted by ARE22, and so on.

The lens parameter related to a depth of the lens shape:

A displacement from a point on the object-side surface of the seventh lens, which is passed through by the optical axis, to a point on the optical axis, where a projection of the maximum effective semi diameter of the object-side surface of the seventh lens ends, is denoted by InRS71 (the depth of the maximum effective semi diameter). A displacement from a point on the image-side surface of the seventh lens, which is passed through by the optical axis, to a point on the optical axis, where a projection of the maximum effective semi diameter of the image-side surface of the seventh lens ends, is denoted by InRS72 (the depth of the maximum effective semi diameter). The depth of the maximum effective semi diameter (sinkage) on the object-side surface or the image-side surface of any other lens is denoted in the same manner.

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens, and the tangent point is tangent to a plane perpendicular to the optical axis and the tangent point cannot be a crossover point on the optical axis. Following the above description, a distance perpendicular to the optical axis between a critical point C51 on the object-side surface of the fifth lens and the optical axis is HVT51 (instance), and a distance perpendicular to the optical axis between a critical point C52 on the image-side surface of the fifth lens and the optical axis is HVT52 (instance). A distance perpendicular to the optical axis between a critical point C61 on the object-side surface of the sixth lens and the optical axis is HVT61 (instance), and a distance perpendicular to the optical axis between a critical point C62 on the image-side surface of the sixth lens and the optical axis is HVT62 (instance). A distance perpendicular to the optical axis between a critical point on the object-side or image-side surface of other lenses, such as the seventh lens, and the optical axis is denoted in the same manner.

The object-side surface of the seventh lens has one inflection point IF711 which is nearest to the optical axis, and the sinkage value of the inflection point 1F711 is denoted by SGI711 (instance). A distance perpendicular to the optical axis between the inflection point IF711 and the optical axis is HIF711 (instance). The image-side surface of the seventh lens has one inflection point IF721 which is nearest to the optical axis, and the sinkage value of the inflection point IF721 is denoted by SGI721 (instance). A distance perpendicular to the optical axis between the inflection point IF721 and the optical axis is HIF721 (instance).

The object-side surface of the seventh lens has one inflection point IF712 which is the second nearest to the optical axis, and the sinkage value of the inflection point IF712 is denoted by SGI712 (instance). A distance perpendicular to the optical axis between the inflection point IF712 and the optical axis is HIF712 (instance). The image-side surface of the seventh lens has one inflection point IF722 which is the second nearest to the optical axis, and the sinkage value of the inflection point IF722 is denoted by SGI722 (instance). A distance perpendicular to the optical axis between the inflection point IF722 and the optical axis is HIF722 (instance).

The object-side surface of the seventh lens has one inflection point IF713 which is the third nearest to the optical axis, and the sinkage value of the inflection point IF713 is denoted by SGI713 (instance). A distance perpendicular to the optical axis between the inflection point IF713 and the optical axis is HIF713 (instance). The image-side surface of the seventh lens has one inflection point IF723 which is the third nearest to the optical axis, and the sinkage value of the inflection point IF723 is denoted by SGI723 (instance). A distance perpendicular to the optical axis between the inflection point IF723 and the optical axis is HIF723 (instance).

The object-side surface of the seventh lens has one inflection point IF714 which is the fourth nearest to the optical axis, and the sinkage value of the inflection point IF714 is denoted by SGI714 (instance). A distance perpendicular to the optical axis between the inflection point IF714 and the optical axis is HIF714 (instance). The image-side surface of the seventh lens has one inflection point IF724 which is the fourth nearest to the optical axis, and the sinkage value of the inflection point IF724 is denoted by SGI724 (instance). A distance perpendicular to the optical axis between the inflection point IF724 and the optical axis is HIF724 (instance).

An inflection point, a distance perpendicular to the optical axis between the inflection point and the optical axis, and a sinkage value thereof on the object-side surface or image-side surface of other lenses is denoted in the same manner.

The lens parameter related to an 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% field. An offset of the spherical aberration is denoted by DFS. An offset of the coma aberration is denoted by DFC.

Transverse aberration on an edge of an aperture is denoted by STA, which stands for STOP transverse aberration, and is used to evaluate the performance of one specific optical image capturing system. The transverse aberration of light in any field of view can be calculated with a tangential fan or a sagittal fan. More specifically, the transverse aberration caused when the longest operation wavelength (e.g., 650 nm) and the shortest operation wavelength (e.g., 470 nm) pass through the edge of the aperture can be used as the reference for evaluating performance. The coordinate directions of the aforementioned tangential fan can be further divided into a positive direction (upper light) and a negative direction (lower light). The longest operation wavelength which passes through the edge of the aperture has an imaging position on the image plane in a particular field of view, and the reference wavelength of the mail light (e.g., 555 nm) has another imaging position on the image plane in the same field of view. The transverse aberration caused when the longest operation wavelength passes through the edge of the aperture is defined as a distance between these two imaging positions. Similarly, the shortest operation wavelength which passes through the edge of the aperture has an imaging position on the image plane in a particular field of view, and the transverse aberration caused when the shortest operation wavelength passes through the edge of the aperture is defined as a distance between the imaging position of the shortest operation wavelength and the imaging position of the reference wavelength. The performance of the optical image capturing system can be considered excellent if the transverse aberrations of the shortest and the longest operation wavelength which pass through the edge of the aperture and image on the image plane in 0.7 field of view (i.e., 0.7 times the height for image formation HOI) are both less than 100 μm. Furthermore, for a stricter evaluation, the performance cannot be considered excellent unless the transverse aberrations of the shortest and the longest operation wavelength which pass through the edge of the aperture and image on the image plane in 0.7 field of view are both less than 80 m.

The optical image capturing system has a maximum image height HOI on the image plane vertical to the optical axis. A transverse aberration at 0.7 HOI in the positive direction of the tangential fan after the longest operation wavelength of visible light passing through the edge of the aperture is denoted by PLTA; a transverse aberration at 0.7 HOI in the positive direction of the tangential fan after the shortest operation wavelength of visible light passing through the edge of the aperture is denoted by PSTA; a transverse aberration at 0.7 HOI in the negative direction of the tangential fan after the longest operation wavelength of visible light passing through the edge of the aperture is denoted by NLTA; a transverse aberration at 0.7 HOI in the negative direction of the tangential fan after the shortest operation wavelength of visible light passing through the edge of the aperture is denoted by NSTA; a transverse aberration at 0.7 HOI of the sagittal fan after the longest operation wavelength of visible light passing through the edge of the aperture is denoted by SLTA; a transverse aberration at 0.7 HOI of the sagittal fan after the shortest operation wavelength of visible light passing through the edge of the aperture is denoted by SSTA.

The present invention provides an optical image capturing system capable of focusing for both visible light and infrared light (i.e., dual mode) with certain performance, in which the seventh lens is provided with an inflection point at the object-side surface or at the image-side surface to adjust the incident angle of each view field and modify the ODT and the TDT. In addition, the surfaces of the seventh lens are capable of modifying the optical path to improve the imagining quality.

The optical image capturing system of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an image plane in order along an optical axis from an object side to an image side. The first lens has refractive power. The optical image capturing system satisfies.

1.4≤f/HEP≤1.8; and 0.9≤2(ARE/HEP)≤2.0;

where f1, f2, f3, f4, f5, f6, and f7 are respectively the focal lengths of the first lens to the seventh lens; f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance between an object-side surface, which face the object side, of the first lens and the image plane on the optical axis; InTL is a distance between the object-side surface of the first lens and the image-side surface of the seventh lens on the optical axis; HAF is a half of the maximum field angle; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturing system, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an image plane in order along an optical axis from an object side to an image side. The first lens has refractive power. The second lens has refractive power. The third lens has refractive power. The fourth lens has refractive power. The fifth lens has refractive power. The sixth lens has refractive power. The seventh lens has refractive power, wherein the object-side surface and the image-side surface thereof are both aspheric surfaces. The optical image capturing system satisfies:

1.4≤f/HEP≤1.8; 3≤HOS/HOI≤8; and 0.9≤2(ARE/HEP)≤2.0;

where f1, 12, f3, f4, f5, f6, and f7 are respectively the focal lengths of the first lens to the seventh lens; f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance between an object-side surface, which face the object side, of the first lens and the image plane on the optical axis; InTL is a distance between the object-side surface of the first lens and the image-side surface of the seventh lens on the optical axis; HAF is a half of the maximum field angle; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturing system, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an image plane, in order along an optical axis from an object side to an image side. The number of the lenses having refractive power in the optical image capturing system is seven. The first lens has refractive power, and the second lens has refractive power. The third lens has refractive power. The fourth lens has refractive power. The fifth lens has refractive power. The sixth lens has refractive power. The seventh lens has refractive power. The fifth lens and the sixth lens are adhered together to form a doublet lens. The optical image capturing system satisfies:

1.4≤f/HEP≤1.8; 3≤HOS/HOI≤8; and 0.9≤2(ARE/HEP)≤2.0;

where f1, f2, f3, f4, f5, f6, and f7 are respectively the focal lengths of the first lens to the seventh lens; f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance in parallel with the optical axis between an object-side surface, which face the object side, of the first lens and the image plane; InTL is a distance between the object-side surface of the first lens and the image-side surface of the seventh lens on the optical axis; HAF is a half of the maximum field angle; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

For any surface of any lens, the profile curve length within the effective half diameter affects the ability of the surface to correct aberration and differences between optical paths of light in different fields of view. With longer profile curve length, the ability to correct aberration is better. However, the difficulty of manufacturing increases as well. Therefore, the profile curve length within the effective half diameter of any surface of any lens has to be controlled. The ratio between the profile curve length (ARS) within the effective half diameter of one surface and the thickness (TP) of the lens, which the surface belonged to, on the optical axis (i.e., ARS/fP) has to be particularly controlled. For example, the profile curve length of the maximum effective half diameter of the object-side surface of the first lens is denoted by ARS11, the thickness of the first lens on the optical axis is TP1, and the ratio between these two parameters is ARS11/TP1; the profile curve length of the maximum effective half diameter of the image-side surface of the first lens is denoted by ARS12, and the ratio between ARS12 and TP1 is ARS12/TP1. The profile curve length of the maximum effective half diameter of the object-side surface of the second lens is denoted by ARS21, the thickness of the second lens on the optical axis is TP2, and the ratio between these two parameters is ARS21/TP2; the profile curve length of the maximum effective half diameter of the image-side surface of the second lens is denoted by ARS22, and the ratio between ARS22 and TP2 is ARS22/TP2. For any surface of other lenses in the optical image capturing system, the ratio between the profile curve length of the maximum effective half diameter thereof and the thickness of the lens which the surface belonged to is denoted in the same manner.

For any surface of any lens, the profile curve length within a half of the entrance pupil diameter (HEP) affects the ability of the surface to correct aberration and differences between optical paths of light in different fields of view. With longer profile curve length, the ability to correct aberration is better. However, the difficulty of manufacturing increases as well. Therefore, the profile curve length within a half of the entrance pupil diameter (HEP) of any surface of any lens has to be controlled. The ratio between the profile curve length (ARE) within a half of the entrance pupil diameter (HEP) of one surface and the thickness (TP) of the lens, which the surface belonged to, on the optical axis (i.e., ARE/TP) has to be particularly controlled. For example, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the first lens is denoted by ARE11, the thickness of the first lens on the optical axis is TP1, and the ratio between these two parameters is ARE11/TP1; the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens is denoted by ARE12, and the ratio between ARE12 and TP1 is ARE12/TP1. The profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the second lens is denoted by ARE21, the thickness of the second lens on the optical axis is TP2, and the ratio between these two parameters is ARE21/TP2; the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens is denoted by ARE22, and the ratio between ARE22 and TP2 is ARE22/TP2. For any surface of other lenses in the optical image capturing system, the ratio between the profile curve length of a half of the entrance pupil diameter (HEP) thereof and the thickness of the lens which the surface belonged to is denoted in the same manner.

In an embodiment, a height of the optical image capturing system (HOS) can be reduced if |f1|>|f7|.

In an embodiment, when |f2|+|f3|+|f4|+51 f5|+|f6| and |f1|+|f7| of the lenses satisfy the aforementioned conditions, at least one lens among the second to the sixth lenses could have weak positive refractive power or weak negative refractive power. Herein the weak refractive power means the absolute value of the focal length of one specific lens is greater than 10. When at least one lens among the second to the sixth lenses has weak positive refractive power, it may share the positive refractive power of the first lens, and on the contrary, when at least one lens among the second to the sixth lenses has weak negative refractive power, it may fine turn and correct the aberration of the system.

In an embodiment, the seventh lens could have negative refractive power, and an image-side surface thereof is concave, it may reduce back focal length and size. Besides, the seventh lens can have at least an inflection point on at least a surface thereof, which may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to the following detailed description of some illustrative embodiments in conjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the present invention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the first embodiment of the present application:

FIG. 1C shows a tangential fan and a sagittal fan of the optical image capturing system of the first embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 2A is a schematic diagram of a second embodiment of the present invention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the second embodiment of the present application;

FIG. 2C shows a tangential fan and a sagittal fan of the optical image capturing system of the second embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture:

FIG. 3A is a schematic diagram of a third embodiment of the present invention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the third embodiment of the present application;

FIG. 3C shows a tangential fan and a sagittal fan of the optical image capturing system of the third embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 4A is a schematic diagram of a fourth embodiment of the present invention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the fourth embodiment of the present application;

FIG. 4C shows a tangential fan and a sagittal fan of the optical image capturing system of the fourth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture:

FIG. 5A is a schematic diagram of a fifth embodiment of the present invention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the fifth embodiment of the present application;

FIG. 5C shows a tangential fan and a sagittal fan of the optical image capturing system of the fifth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture:

FIG. 6A is a schematic diagram of a sixth embodiment of the present invention:

FIG. 6B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the sixth embodiment of the present application; and

FIG. 6C shows a tangential fan and a sagittal fan of the optical image capturing system of the sixth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an image plane from an object side to an image side. The optical image capturing system further is provided with an image sensor at an image plane, wherein the image heights of the following embodiments are all around 3.91 mm.

The optical image capturing system can work in three wavelengths, including 486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the main reference wavelength and is the reference wavelength for obtaining the technical characters. The optical image capturing system can also work in five wavelengths, including 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm wherein 555 nm is the main reference wavelength, and is the reference wavelength for obtaining the technical characters.

The optical image capturing system of the present invention satisfies 0.5≤ΣPPR/|ΣNPR|≤15, and a preferable range is 1ΣPPR/|ΣNPR|≤3.0, where PPR is a ratio of the focal length f of the optical image capturing system to a focal length fp of each of lenses with positive refractive power; NPR is a ratio of the focal length f of the optical image capturing system to a focal length fn of each of lenses with negative refractive power; ΣPPR is a sum of the PPRs of each positive lens; and ΣNPR is a sum of the NPRs of each negative lens. It is helpful for control of an entire refractive power and an entire length of the optical image capturing system.

The image sensor is provided on the image plane. The optical image capturing system of the present invention satisfies HOS/HOI≤10; and 0.5≤HOS/f≤10, and a preferable range is 1≤HOS/HOI≤5; and 1≤HOS/f≤7, where HOI is a half of a diagonal of an effective sensing area of the image sensor, i.e., the maximum image height, and HOS is a height of the optical image capturing system, i.e. a distance on the optical axis between the object-side surface of the first lens and the image plane. It is helpful for reduction of the size of the system for used in compact cameras.

The optical image capturing system of the present invention further is provided with an aperture to increase image quality.

In the optical image capturing system of the present invention, the aperture could be a front aperture or a middle aperture, wherein the front aperture is provided between the object and the first lens, and the middle is provided between the first lens and the image plane. The front aperture provides a long distance between an exit pupil of the system and the image plane, which allows more elements to be installed. The middle could enlarge a view angle of view of the system and increase the efficiency of the image sensor. The optical image capturing system satisfies 0.2≤InS/HOS≤1.1, where InS is a distance between the aperture and the image-side surface of the sixth lens. It is helpful for size reduction and wide angle.

The optical image capturing system of the present invention satisfies 0.1≤ΣTP/InTL≤0.9, where InTL is a distance between the object-side surface of the first lens and the image-side surface of the seventh lens, and ΣTP is a sum of central thicknesses of the lenses on the optical axis. It is helpful for the contrast of image and yield rate of manufacture and provides a suitable back focal length for installation of other elements.

The optical image capturing system of the present invention satisfies 0.001≤|R1/R2|≤20, and a preferable range is 0.01≤|R1/R2|<10, where R1 is a radius of curvature of the object-side surface of the first lens, and R2 is a radius of curvature of the image-side surface of the first lens. It provides the first lens with a suitable positive refractive power to reduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies −7<(R13−R14)/(R13+R14)<50, where R13 is a radius of curvature of the object-side surface of the seventh lens, and R14 is a radius of curvature of the image-side surface of the seventh lens. It may modify the astigmatic field curvature.

The optical image capturing system of the present invention satisfies IN12/f≤3.0, where IN12 is a distance on the optical axis between the first lens and the second lens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies IN67/f≤0.8, where IN67 is a distance on the optical axis between the sixth lens and the seventh lens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤(TP1+IN12)/TP2≤10, where TP1 is a central thickness of the first lens on the optical axis, and TP2 is a central thickness of the second lens on the optical axis. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤(TP7+IN67)/TP6≤10, where TP6 is a central thickness of the sixth lens on the optical axis, TP7 is a central thickness of the seventh lens on the optical axis, and IN67 is a distance between the sixth lens and the seventh lens. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤TP4/(IN34+TP4+IN45)<1, where TP3 is a central thickness of the third lens on the optical axis, TP4 is a central thickness of the fourth lens on the optical axis, TP5 is a central thickness of the fifth lens on the optical axis, IN34 is a distance on the optical axis between the third lens and the fourth lens, IN45 is a distance on the optical axis between the fourth lens and the fifth lens, and InTL is a distance between the object-side surface of the first lens and the image-side surface of the seventh lens. It may fine tune and correct the aberration of the incident rays layer by layer, and reduce the height of the system.

The optical image capturing system satisfies 0 mm≤HVT71≤3 mm; 0 mm <HVT72≤6 mm; 0≤HVT71/HVT72; 0 mm≤|SGC71|≤0.5 mm; 0 mm<|SGC72|≤2 mm; and 0<|SGC72|/(|SGC72|+TP7)≤0.9, where HVT71 a distance perpendicular to the optical axis between the critical point C71 on the object-side surface of the seventh lens and the optical axis; HVT72 a distance perpendicular to the optical axis between the critical point C72 on the image-side surface of the seventh lens and the optical axis; SGC71 is a distance on the optical axis between a point on the object-side surface of the seventh lens where the optical axis passes through and a point where the critical point C71 projects on the optical axis; SGC72 is a distance on the optical axis between a point on the image-side surface of the seventh lens where the optical axis passes through and a point where the critical point C72 projects on the optical axis. It is helpful to correct the off-axis view field aberration.

The optical image captunng system satisfies 0.2≤HVT72/HOI≤0.9, and preferably satisfies 0.3≤HVT72/HOI≤0.8. It may help to correct the peripheral aberration.

The optical image capturing system satisfies 0≤HVT72/HOS≤0.5, and preferably satisfies 0.2≤HVT72/HOS≤0.45. It may help to correct the peripheral aberration.

The optical image capturing system of the present invention satisfies 0<SGI711/(SGI711+TP7)≤0.9; 0<SGI721/(SGI721+TP7)≤0.9, and it is preferable to satisfy 0.1≤SGI711/(SGI711+TP7)≤0.6; 0.1≤SGI721/(SGI721+TP7)≤0.6, where SGI711 is a displacement on the optical axis from a point on the object-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI721 is a displacement on the optical axis from a point on the image-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies 0<SGI712/(SGI712+TP7)≤0.9; 0<SGI722/(SGI722+TP7)≤0.9, and it is preferable to satisfy 0.1≤SGI712/(SGI712+TP7)≤0.6; 0.1≤SGI722/(SGI722+TP7)≤0.6, where SGI712 is a displacement on the optical axis from a point on the object-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI722 is a displacement on the optical axis from a point on the image-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF711|≤5 mm; 0.001 mm≤|HIF721|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF711|≤3.5 mm; 1.5 mm≤|HIF721|≤3.5 mm, where HIF711 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the seventh lens, which is the closest to the optical axis, and the optical axis; HIF721 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the seventh lens, which is the closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF712|≤5 mm; 0.001 mm≤|HIF722|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF722|≤3.5 mm; 0.1 mm≤|HIF712|≤3.5 mm, where HIF712 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the seventh lens, which is the second closest to the optical axis, and the optical axis; HIF722 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the seventh lens, which is the second closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF713|21 5 mm; 0.001 mm≤|HIF723|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF723|≤3.5 mm; 0.1 mm≤|HIF713|≤3.5 mm, where HIF713 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the seventh lens, which is the third closest to the optical axis, and the optical axis; HIF723 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the seventh lens, which is the third closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF714|≤5 mm; 0.001 mm≤|HIF724≤|5 mm, and it is preferable to satisfy 0.1 mm≤|HIF724|≤3.5 mm; 0.1 mm≤|HIF714|≤3.5 mm, where HIF714 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the seventh lens, which is the fourth closest to the optical axis, and the optical axis; HIF724 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the seventh lens, which is the fourth closest to the optical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of low Abbe number are arranged in an interlaced arrangement that could be helpful for correction of aberration of the system.

An equation of aspheric surface is

z=ch
²/[1+[1−(k+1)c²h²]^0.5]+A4h⁴+A6h⁶+A8h⁸+A10h¹⁰+A12h¹²+A14h¹⁴+A 16h¹⁶+A18h¹⁸+A20h²⁰+ . . . (1)

where z is a depression of the aspheric surface; k is conic constant; c is reciprocal of the radius of curvature; and A4, A6, A8, A10, A12. A14. A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made of plastic or glass. The plastic lenses may reduce the weight and lower the cost of the system, and the glass lenses may control the thermal effect and enlarge the space for arrangement of the refractive power of the system. In addition, the opposite surfaces (object-side surface and image-side surface) of the first to the seventh lenses could be aspheric that can obtain more control parameters to reduce aberration. The number of aspheric glass lenses could be less than the conventional spherical glass lenses, which is helpful for reduction of the height of the system.

When the lens has a convex surface, which means that the surface is convex around a position, through which the optical axis passes, and when the lens has a concave surface, which means that the surface is concave around a position, through which the optical axis passes.

The optical image capturing system of the present invention could be applied in a dynamic focusing optical system. It is superior in the correction of aberration and high imaging quality so that it could be allied in lots of fields.

The optical image capturing system of the present invention could further include a driving module to meet different demands, wherein the driving module can be coupled with the lenses to move the lenses. The driving module can be a voice coil motor (VCM), which is used to move the lens for focusing, or can be an optical image stabilization (OIS) component, which is used to lower the possibility of having the problem of image blurring which is caused by subtle movements of the lens while shooting.

To meet different requirements, at least one lens among the first lens to the seventh lens of the optical image capturing system of the present invention can be a light filter, which filters out light of wavelength shorter than 500 nm. Such effect can be achieved by coating on at least one surface of the lens, or by using materials capable of filtering out short waves to make the lens.

To meet different requirements, the image plane of the optical image capturing system in the present invention can be either flat or curved. If the image plane is curved (e.g., a sphere with a radius of curvature), the incidence angle required for focusing light on the image plane can be decreased, which is not only helpful to shorten the length of the system (TTL), but also helpful to increase the relative illuminance.

We provide several embodiments in conjunction with the accompanying drawings for the best understanding, which are:

FIRST EMBODIMENT

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 of the first embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 110, a second lens 120, a third lens 130, an aperture 100, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, an infrared rays filter 180, an image plane 190, and an image sensor 192. FIG. 1C shows a tangential fan and a sagittal fan of the optical image capturing system 10 of the first embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of the aperture 100.

The first lens 110 has negative refractive power and is made of plastic. An object-side surface 112 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 114 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 112 has an inflection point, and the image-side surface 114 has two inflection points. A profile curve length of the maximum effective half diameter of an object-side surface of the first lens 110 is denoted by ARS 11, and a profile curve length of the maximum effective half diameter of the image-side surface of the first lens 110 is denoted by ARS12. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the first lens 110 is denoted by ARE11, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens 110 is denoted by ARE12. A thickness of the first lens 110 on the optical axis is TP1.

The first lens 110 satisfies SGI11=−0.1110 mm; SGI121=2.7120 mm; TP1=2.2761 mm; |SGI111|/(|SGI111+TP1)=0.0465; |SGI121|/(|SGI121|+TP1)=0.5437, where a displacement on the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis, is denoted by SGI111, and a displacement on the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis is denoted by SGI121.

The first lens 110 satisfies SGI112=0 mm; SGI122=4.2315 mm; |SGI121|/(|SGI121|+TP1)=0; |SGI122|/(|SGI122|+TP1)=0.6502, where a displacement on the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the second closest to the optical axis, projects on the optical axis, is denoted by SGI112, and a displacement on the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the second closest to the optical axis, projects on the optical axis is denoted by SGI122.

The first lens 110 satisfies HIF111=12.8432 mm; HIF111/HOI=1.7127; HIF121=7.1744 mm; HIF121/HOI=0.9567, where a displacement perpendicular to the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF111, and a displacement perpendicular to the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF121.

The first lens 110 satisfies HIF112=0 mm; HIF112/HOI=0; HIF122=9.8592 mm; HIF122/HOI=1.3147, where a displacement perpendicular to the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the second closest to the optical axis is denoted by HIF112, and a displacement perpendicular to the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the second closest to the optical axis is denoted by HIF122.

The second lens 120 has positive refractive power and is made of plastic. An object-side surface 122 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 124 thereof, which faces the image side, is a concave aspheric surface. A profile curve length of the maximum effective half diameter of an object-side surface of the second lens 120 is denoted by ARS21, and a profile curve length of the maximum effective half diameter of the image-side surface of the second lens 120 is denoted by ARS22. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the second lens 120 is denoted by ARE21, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens 120 is denoted by ARE22. A thickness of the second lens 120 on the optical axis is TP2.

For the second lens 120, a displacement on the optical axis from a point on the object-side surface of the second lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis, is denoted by SGI211, and a displacement on the optical axis from a point on the image-side surface of the second lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis is denoted by SGI221.

For the second lens, a displacement perpendicular to the optical axis from a point on the object-side surface of the second lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF211, and a displacement perpendicular to the optical axis from a point on the image-side surface of the second lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF221.

The third lens 130 has negative refractive power and is made of plastic. An object-side surface 132, which faces the object side, is a convex aspheric surface, and an image-side surface 134, which faces the image side, is a concave aspheric surface. A profile curve length of the maximum effective half diameter of an object-side surface of the third lens 130 is denoted by ARS31, and a profile curve length of the maximum effective half diameter of the image-side surface of the third lens 130 is denoted by ARS32. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the third lens 130 is denoted by ARE31, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the third lens 130 is denoted by ARE32. A thickness of the third lens 130 on the optical axis is TP3.

For the third lens 130, SGI311 is a displacement on the optical axis from a point on the object-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI321 is a displacement on the optical axis from a point on the image-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the third lens 130, SGI312 is a displacement on the optical axis from a point on the object-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI322 is a displacement on the optical axis from a point on the image-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

For the third lens 130, HIF311 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the third lens, which is the closest to the optical axis, and the optical axis; HIF321 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the third lens, which is the closest to the optical axis, and the optical axis.

For the third lens 130, HIF312 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the third lens, which is the second closest to the optical axis, and the optical axis; HIF322 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the third lens, which is the second closest to the optical axis, and the optical axis.

The fourth lens 140 has positive refractive power and is made of plastic. An object-side surface 142, which faces the object side, is a convex aspheric surface, and an image-side surface 144, which faces the image side, is a convex aspheric surface. The object-side surface 142 has an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the fourth lens 140 is denoted by ARS41, and a profile curve length of the maximum effective half diameter of the image-side surface of the fourth lens 140 is denoted by ARS42. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the fourth lens 140 is denoted by ARE41, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the fourth lens 140 is denoted by ARE42. A thickness of the fourth lens 140 on the optical axis is TP4.

The fourth lens 140 satisfies SGI411=0.0018 mm; |SGI411|/(|SGI411|+TP4)=0.0009, where SGI411 is a displacement on the optical axis from a point on the object-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI421 is a displacement on the optical axis from a point on the image-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the fourth lens 140, SGI412 is a displacement on the optical axis from a point on the object-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI422 is a displacement on the optical axis from a point on the image-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The fourth lens 140 further satisfies HIF411=0.7191 mm; HIF411/HOI=0.0959, where HIF411 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens, which is the closest to the optical axis, and the optical axis; HIF421 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens, which is the closest to the optical axis, and the optical axis.

For the fourth lens 140, HIF412 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens, which is the second closest to the optical axis, and the optical axis; HIF422 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens, which is the second closest to the optical axis, and the optical axis.

The fifth lens 150 has positive refractive power and is made of plastic. An object-side surface 152, which faces the object side, is a concave aspheric surface, and an image-side surface 154, which faces the image side, is a convex aspheric surface. The object-side surface 152 and the image-side surface 154 both have an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the fifth lens 150 is denoted by ARS51, and a profile curve length of the maximum effective half diameter of the image-side surface of the fifth lens 150 is denoted by ARS52. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the fifth lens 150 is denoted by ARE51, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the fifth lens 150 is denoted by ARE52. A thickness of the fifth lens 150 on the optical axis is TP5.

The fifth lens 150 satisfies SGI511=−0.1246 mm; SGI521=−2.1477 mm; |SGI511|/(|SGI511|+TP5)=0.0284; |SGI521|/(|SGI521|+TP5)=0.3346, where SGI511 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI521 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the fifth lens 150, SGI512 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI522 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The fifth lens 150 further satisfies HIF511=3.8179 mm; HIF521=4.5480 mm; HIF511/HOI=0.5091; HIF521/HOI=0.6065, where HIF511 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis; HIF521 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis.

For the fifth lens 150, HIF512 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis; HIF522 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis.

The sixth lens 160 has negative refractive power and is made of plastic. An object-side surface 162, which faces the object side, is a convex surface, and an image-side surface 164, which faces the image side, is a concave surface. The object-side surface 162 and the image-side surface 164 both have an inflection point. Whereby, incident angle of each field of view for the sixth lens can be effectively adjusted to improve aberration. A profile curve length of the maximum effective half diameter of an object-side surface of the sixth lens 160 is denoted by ARS61, and a profile curve length of the maximum effective half diameter of the image-side surface of the sixth lens 160 is denoted by ARS62. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the sixth lens 160 is denoted by ARE61, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the sixth lens 160 is denoted by ARE62. A thickness of the sixth lens 160 on the optical axis is TP6.

The sixth lens 160 satisfies SGI611=0.3208 mm; SGI621=0.5937 mm; |SGI611|/(|SGI611|+TP6)=0.5167; |SGI621|/(|SGI621|+TP6)=0.6643, where SGI611 is a displacement on the optical axis from a point on the object-side surface of the sixth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI621 is a displacement on the optical axis from a point on the image-side surface of the sixth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

The sixth lens 160 further satisfies HIF611=1.9655 mm; HIF621=2.0041 mm; HIF611/HOI=0.2621; HIF621/HOI=0.2672, where HIF611 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the sixth lens, which is the closest to the optical axis, and the optical axis; HIF621 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the sixth lens, which is the closest to the optical axis, and the optical axis.

The seventh lens 170 has positive refractive power and is made of plastic. An object-side surface 172, which faces the object side, is a convex surface, and an image-side surface 174, which faces the image side, is a concave surface. Whereby, it is helpful to shorten the focal length behind the seventh lens for miniaturization. The object-side surface 172 and the image-side surface 174 both have an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the seventh lens 170 is denoted by ARS71, and a profile curve length of the maximum effective half diameter of the image-side surface of the seventh lens 170 is denoted by ARS72. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the seventh lens 170 is denoted by ARE71, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the seventh lens 170 is denoted by ARE72. A thickness of the seventh lens 170 on the optical axis is TP7.

The seventh lens 170 satisfies SGI71 1=0.5212 mm; SGI721=0.5668 mm; |SGI711|/(|SGI711|+TP7)=0.3179; |SGI721|/(|SGI721|+TP7)=0.3364, where SGI711 is a displacement on the optical axis from a point on the object-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI721 is a displacement on the optical axis from a point on the image-side surface of the seventh lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

The seventh lens 170 further satisfies HIF711=1.6707 mm; HIF721=1.8616 mm; HIF711/HOI=0.2228; HIF721/HOI=0.2482, where HIF711 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the seventh lens, which is the closest to the optical axis, and the optical axis; HIF721 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the seventh lens, which is the closest to the optical axis, and the optical axis.

The features related to the inflection points in the present embodiment described below are obtained with the main reference wavelength 555 nm.

The infrared rays filter 180 is made of glass and is disposed between the seventh lens 170 and the image plane 190. The infrared rays filter 180 gives no contribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has the following parameters, which are f=4.3019 mm; f/HEP=1.2; HAF=59.9968; and tan(HAF)=1.7318, where f is a focal length of the system; HAF is a half of the maximum field angle; and HEP is an entrance pupil diameter.

The parameters of the lenses of the first embodiment are f1=−14.5286 mm; |f/f1|=0.2961; f7=8.2933; |f1|>f7; and |f1/f7|=1.7519, where f1 is a focal length of the first lens 110; and f7 is a focal length of the seventh lens 170.

The first embodiment further satisfies |f2|+|f3|+|f4|+|f5|+|f6|=144.7494; |f1|+|f7|=22.8219 and |f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where 12 is a focal length of the second lens 120, f3 is a focal length of the third lens 130, f4 is a focal length of the fourth lens 140, f5 is a focal length of the fifth lens 150, 6 is a focal length of the sixth lens 160, and f7 is a focal length of the seventh lens 170.

The optical image capturing system 10 of the first embodiment further satisfies ΣPPR=f/f2+f/f4+f/f5+f/f7=1.7384; ΣNPR=f/f1+f/f3+f/f6=−0.9999; ΣPPR/|ΣNPR|=1.7386; |f/f2|=0.1774; |f/3|=0.0443; |f/f4|=0.4411; |f/f5|=0.6012; |f/f6|=0.6595; |f/f7|=0.5187, where PPR is a ratio of a focal length f of the optical image capturing system to a focal length fp of each of the lenses with positive refractive power; and NPR is a ratio of a focal length f of the optical image capturing system to a focal length fn of each of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment further satisfies InTL+BFL=HOS; HOS=26.9789 mm; HOI=7.5 mm; HOS/HOI=3.5977; HOS/f=6.2715; InS=12.4615 mm; and InS/HOS=0.4619, where InTL is a distance between the object-side surface 112 of the first lens 110 and the image-side surface 174 of the seventh lens 170; HOS is a height of the image capturing system, i.e. a distance between the object-side surface 112 of the first lens 110 and the image plane 190; InS is a distance between the aperture 100 and the image plane 190; HOI is a half of a diagonal of an effective sensing area of the image sensor 192, i.e., the maximum image height; and BFL is a distance between the image-side surface 174 of the seventh lens 170 and the image plane 190.

The optical image capturing system 10 of the first embodiment further satisfies ITP=16.0446 mm; and ITP/InTL=0.6559, where ITP is a sum of the thicknesses of the lenses 110-170 with refractive power. It is helpful for the contrast of image and yield rate of manufacture and provides a suitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment further satisfies |R1/R2|=129.9952, where R1 is a radius of curvature of the object-side surface 112 of the first lens 110, and R2 is a radius of curvature of the image-side surface 114 of the first lens 110. It provides the first lens with a suitable positive refractive power to reduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment further satisfies (R13−R14)/(R13+R14)=−0.0806, where R13 is a radius of curvature of the object-side surface 172 of the seventh lens 170, and R14 is a radius of curvature of the image-side surface 174 of the seventh lens 170. It may modify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment further satisfies ΣPP=f2+f4+f5+f7=49.4535 mm; and f4/(f2+f4+f5+f7)=0.1972, where ΣPP is a sum of the focal lengths fp of each lens with positive refractive power. It is helpful to share the positive refractive power of the fourth lens 140 to other positive lenses to avoid the significant aberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment further satisfies ΣNP=f1+f3+f6=−118.1178 mm; and f1/(f1+f3+f6)=0.1677, where ΣNP is a sum of the focal lengths fn of each lens with negative refractive power. It is helpful to share the negative refractive power of the first lens 110 to other negative lenses, which avoids the significant aberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment further satisfies IN12=4.5524 mm; IN12/f=1.0582, where IN12 is a distance on the optical axis between the first lens 110 and the second lens 120. It may correct chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment further satisfies TP1=2.2761 mm; TP2=0.2398 mm; and (TP1+IN12)/TP2=1.3032, where TP1 is a central thickness of the first lens 110 on the optical axis, and TP2 is a central thickness of the second lens 120 on the optical axis. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system 10 of the first embodiment further satisfies TP6=0.3000 mm; TP7=1.1182 mm; and (TP7+IN67)/TP6=4.4322, where TP6 is a central thickness of the sixth lens 160 on the optical axis, TP7 is a central thickness of the seventh lens 170 on the optical axis, and IN67 is a distance on the optical axis between the sixth lens 160 and the seventh lens 170. It may control the sensitivity of manufacture of the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment further satisfies TP3=0.8369 mm; TP4=2.0022 mm; TP5=4.2706 mm; IN34=1.9268 mm; IN45=1.5153 mm; and TP4/(IN34+TP4+IN45)=0.3678, where TP3 is a central thickness of the third lens 130 on the optical axis, TP4 is a central thickness of the fourth lens 140 on the optical axis, TP5 is a central thickness of the fifth lens 150 on the optical axis, IN34 is a distance on the optical axis between the third lens 130 and the fourth lens 140, and IN45 is a distance on the optical axis between the fourth lens 140 and the fifth lens 150. It may control the sensitivity of manufacture of the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment further satisfies InRaS61=−0.7823 mm; InRS62=−0.2166 mm; and |InRS62|/TP6=0.722, where InRS61 is a displacement from a point on the object-side surface 162 of the sixth lens 160 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the object-side surface 162 of the sixth lens 160 ends; InRS62 is a displacement from a point on the image-side surface 164 of the sixth lens 160 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the image-side surface 164 of the sixth lens 160 ends; and TP6 is a central thickness of the sixth lens 160 on the optical axis. It is helpful for manufacturing and shaping of the lenses and is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment further satisfies HVT61=3.3498 mm; HVT62=3.9860 mm; and HVT61/HVT62=0.8404, where HVT61 a distance perpendicular to the optical axis between the critical point on the object-side surface 162 of the sixth lens 160 and the optical axis; and HVT62 a distance perpendicular to the optical axis between the critical point on the image-side surface 164 of the sixth lens 160 and the optical axis.

The optical image capturing system 10 of the first embodiment further satisfies InRS71=−0.2756 mm; InRS72=−0.0938 mm; and |InRS72|/TP7=0.0839, where InRS71 is a displacement from a point on the object-side surface 172 of the seventh lens 170 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the object-side surface 172 of the seventh lens 170 ends; InRS72 is a displacement from a point on the image-side surface 174 of the seventh lens 170 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the image-side surface 174 of the seventh lens 170 ends; and TP7 is a central thickness of the seventh lens 170 on the optical axis. It is helpful for manufacturing and shaping of the lenses and is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment satisfies HVT71=3.6822 mm; HVT72=4.0606 mm; and HVT71/HVT72=0.9068, where HVT71 a distance perpendicular to the optical axis between the critical point on the object-side surface 172 of the seventh lens 170 and the optical axis; and HVT72 a distance perpendicular to the optical axis between the critical point on the image-side surface 174 of the seventh lens 170 and the optical axis.

The optical image capturing system 10 of the first embodiment satisfies HVT72/HOI=0.5414. It is helpful for correction of the aberration of the peripheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfies HVT72/HOS=0.1505. It is helpful for correction of the aberration of the peripheral view field of the optical image capturing system.

The second lens 120, the third lens 130, and the seventh lens 170 have negative refractive power. The optical image capturing system 10 of the first embodiment further satisfies 1≤NA7/NA2, where NA2 is an Abbe number of the second lens 120; and NA7 is an Abbe number of the seventh lens 170. It may correct the aberration of the optical image capturing system.

The optical image capturing system 10 of the first embodiment further satisfies |TDT|=2.5678%; |ODT|=2.1302%, where TDT is TV distortion; and ODT is optical distortion.

For the fifth lens 150 of the optical image capturing system 10 in the first embodiment, a transverse aberration at 0.7 field of view in the positive direction of the tangential fan after the shortest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by PSTA, and is 0.00040 mm; a transverse aberration at 0.7 field of view in the positive direction of the tangential fan after the longest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by PLTA, and is −0.009 mm; a transverse aberration at 0.7 field of view in the negative direction of the tangential fan after the shortest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by NSTA, and is −0.002 mm; a transverse aberration at 0.7 field of view in the negative direction of the tangential fan after the longest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by NLTA, and is −0.016 mm; a transverse aberration at 0.7 field of view of the sagittal fan after the shortest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by SSTA, and is 0.018 mm; a transverse aberration at 0.7 field of view of the sagittal fan after the longest operation wavelength of visible light passing through the edge of the aperture 100 is denoted by SLTA, and is 0.016 mm.

The parameters of the lenses of the first embodiment are listed in Table 1 and Table 2.

TABLE 1

f = 4.3019 mm; /HEP = 12; HAF = 59.9968 deg

Thickness

Focal

Radius of curvature
(mm)

Refractive
Abbe
length

Surface
(mm)
infinity
Material
index
number
(mm)

0
Object
plane

1
1^stlens
−1079.499964
2.276
plastic
1.565
58.00
−14.53

2

8.304149657
4.552

3
2^ndlens
14.39130913
5.240
plastic
1.650
21.40
24.25

4

130.0869482
0. t 62

5
3^rdJens
8.167310118
0.837
plastic
1.650
21.40
−97.07

6

6.944477468
1.450

7
Aperture
plane
0.477

8
4^thlens
121.5965254
2.002
plastic
1.565
58.00
9.75

9

−5.755749302
1.515

10
5^thlens
−86.27705938
4.271
plastic
1.565
58.00
7.16

11

−3.942936258
0.050

12
6^thlens
4.867364751
0.300
plastic
1.650
21.40
−6.52

13

2.220604983
0.211

14
7^thlens
1.892510651
1.118
plastic
1.650
21.40
8.29

15

2.224128115
1.400

16
Infrared
plane
0.200
BK_7
1.517
64.2

rays

filter

17

plane
0.917

18
image
plane
0

plane

Reference wavelength (d-line): 555 nn.

TABLE 2

Coefficients of the aspheric surfaces

Surface
1
2
3
4
5
6
8

k
2.500000E+01
−4.711931E−01
1.531617E+00
−1.153034E+01
−2.915013E+00
4.886991E+00
−3.459463E+01

A4
5.236918E−06
−2.117558E−04
7.146736E−05
4.353586E−04
5.793768E−04
−3.756697E−04
−1.292614E−03

A6
−3.014384E−08
−1.838670E−06
2.334364E−06
1.400287E−05
2.112652E−04
3.901218E−04
−1.602381E−05

A8
−2.487400E−10
9.605910E−09
−7.479362E−08
−1.688929E−07
−1.344586E−05
−4.925422E−05
−8.452359E−06

A10
1.170000E−12
−8.256000E−11
1.701570E−09
3.829807E−08
1.000482E−06
4.139741E−06
7.243999E−07

A12
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A14
0.000000E+00
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
15

k
−7.549291E+00
−5.000000E+01
−1.740728E+00
−4.709650E+00
−4.50978SE+00
−3.427137E+00
−3.215123E+00

A4
−5.583548E−03
1.240671E−04
6.467538E−04
−1.872317E−03
−8.967310E−04
−3.189453E−03
−2.815022E−03

A6
1.947110E−04
−4.949077E−05
−4.981838E−05
−1.523141E−05
−2.688331E−05
−1.058126E−0.5
1.884580E−0.5

A8
−1.486947E−05
2.088854E−06
9.129031E−07
−2.169414E−06
−8.324958E−07
1.760103E−06
−1.017223E−08

A10
−6.501246E−08
−1.438383E−08
7.108550E−09
−2.308304E−08
−6.184250E−09
−4.730294E−08
3.660000E−12

A12
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A14
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

The figures related to the profile curve lengths obtained based on Table 1 and Table 2 are listed in the following table:

First embodiment (Reference wavelength: 555 nm)

ARE
ARE-1/2
2(ARE/

ARE/TP

ARE
1/2(HEP)
value
(HEP)
HEP) %
TP
(%)

11
1.792
1.792
−0.00044
99.98%
2.276
78.73%

12
1.792
1.806
0.01319
100.74%
2.276
79.33%

21
1.792
1.797
0.00437
100.24%
5.240
34.29%

22
1.792
1.792
−0.00032
99.98%
5.240
34.20%

31
1.792
1.808
0.01525
100.85%
0.837
216.01%

32
1.792
1.819
0.02705
101.51%
0.837
217.42%

41
1.792
1.792
−0.00041
99.98%
2.002
89.50%

42
1.792
1.825
0.03287
101.83%
2.002
91.16%

51
1.792
1.792
−0.00031
99.98%
4.271
41.96%

52
1.792
1.845
0.05305
102.96%
4.271
43.21%

61
1.792
1.818
0.02587
101.44%
0.300
606.10%

62
1.792
1.874
0.08157
104.55%
0.300
624.67%

71
1.792
1.898
0.10523
105.87%
1.118
169.71%

72
1.792
1.885
0.09273
105.17%
1.118
168.59%

ARS

(ARS/

ARS/TP

ARS
EHD
value
ARS-EHD
EHD)%
TP
(%)

11
15.095
15.096
0.001
100.01%
2.276
663.24%

12
10.315
11.377
1.062
110.29%
2.276
499.86%

21
7.531
8.696
1.166
115.48%
5.240
165.96%

22
4.759
4.881
0.122
102.56%
5.240
93.15%

31
3.632
4.013
0.382
110.51%
0.837
479.55%

32
2.815
3.159
0.344
112.23%
0.837
377.47%

41
2.967
2.971
0.004
100.13%
2.002
148.38%

42
3.402
3.828
0.426
112.53%
2.002
191.20%

51
4.519
4.523
0.004
100.10%
4.271
105.91%

52
5.016
5.722
0.706
114.08%
4.271
133.99%

61
5.019
5.823
0.805
116.04%
0.300
1941.14%

62
5.629
6.605
0.976
117.34%
0.300
2201.71%

71
5.634
6.503
0.869
115.43%
1.118
581.54%

72
6.488
7.152
0.664
110.24%
1.118
639.59%

The detail parameters of the first embodiment are listed in Table 1, in which the unit of the radius of curvature, thickness, and focal length are millimeter, and surface 0-10 indicates the surfaces of all elements in the system in sequence from the object side to the image side. Table 2 is the list of coefficients of the aspheric surfaces, in which A1-A20 indicate the coefficients of aspheric surfaces from the first order to the twentieth order of each aspheric surface. The following embodiments have the similar diagrams and tables, which are the same as those of the first embodiment, so we do not describe it again.

SECOND EMBODIMENT

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 of the second embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 210, a second lens 220, an aperture 200, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, a seven lens 270, an infrared rays filter 280, an image plane 290, and an image sensor 292. FIG. 2C is a transverse aberration diagram at 0.7 field of view of the second embodiment of the present application.

The first lens 210 has negative refractive power and is made of glass. An object-side surface 212 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 214 thereof, which faces the image side, is a concave spherical surface.

The second lens 220 has positive refractive power and is made of glass. An object-side surface 222 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 224 thereof, which faces the image side, is a concave spherical surface.

The third lens 230 has positive refractive power and is made of glass. An object-side surface 232, which faces the object side, is a concave spherical surface, and an image-side surface 234, which faces the image side, is a convex spherical surface. The object-side surface 232 has an inflection point.

The fourth lens 240 has positive refractive power and is made of glass. An object-side surface 242, which faces the object side, is a convex spherical surface, and an image-side surface 244, which faces the image side, is a convex spherical surface.

The fifth lens 250 has negative refractive power and is made of glass. An object-side surface 252, which faces the object side, is a convex spherical surface, and an image-side surface 254, which faces the image side, is a concave spherical surface.

The sixth lens 260 has positive refractive power and is made of glass. An object-side surface 262, which faces the object side, is a convex spherical surface, and an image-side surface 264, which faces the image side, is a concave spherical surface. Whereby, incident angle of each field of view for the sixth lens 260 can be effectively adjusted to improve aberration.

The seventh lens 270 has positive refractive power and is made of glass. An object-side surface 272, which faces the object side, is a convex spherical surface, and an image-side surface 274, which faces the image side, is a concave spherical surface. It may help to shorten the back focal length to keep small in size, which may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

The infrared rays filter 280 is made of glass and is disposed between the seventh lens 270 and the image plane 290. The infrared rays filter 280 gives no contribution to the focal length of the system.

The parameters of the lenses of the second embodiment are listed in Table 3 and Table 4.

TABLE 3

f = 3.6034 mm; f/HEP = 1.64; HAF = 56.0000 deg

Focal

Thickness

Refractive
Abbe
length

Surface
Radius of curvature (nun)
(mm)
Material
index
number
(mm)

0
Object
1E+18
5000

1
1^stlens
14.8104063.3
1.000
glass
1.755
52.32
−5.154

2

3
2.252

3
2^ndlens
8.978686838
2.730
glass
1.946
17.94
168.542

4

8.096516763
0.398

5
Aperture
1E+18
0.071

6
3^rdlens
−38.72485981
4.800
glass
1.593
68.34
11.485

7

−6.071564614
0.060

8
4^thlens
14.07018481
2.001
glass
1.835
42.73
10.361

9

−21.22724916
1.166

10
5^thlens
11.6685689
1.300
glass
1.946
17.94
−9.624

11

4.862523901
0.005

12
6^thlens
4.862523901
3.046
glass
1.593
68.34
8.840

13

50
0.050

14
7^thlens
10.67676552
1.491
glass
1.835
42.73
26.932

15

18.96500748
0.635

16
Infrared
1E+18
0.550
BK_7
1.517
64.17

rays

filter

17

1E+18
2.450

18
image
1E+18
0.000

plane

Reference wavelength (d-line): 555 nm.

The position of blocking light: the clear aperture of the third surface is 2.404 mm; the clear aperture of the seventh surface is 3.267 mm.

TABLE 4

Coefficients of the aspheric surfaces

Surface
1
2
3
4
6
7
8

k
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A4
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A6
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A8
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A10
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A12
0.000000E+00
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
15

k
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A4
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A6
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A8
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A10
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

A12
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00
0.000000E+00

An equation of the aspheric surfaces of the second embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the second embodiment based on Table 3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm)

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

0.6992
0.0214
0.3138
0.3478
0.3744
0.4076

|f/f7|
TP3/TP1
TP5/TP6
IN12/IN23
IN12/f
IN67/f

0.1338
4.7997
0.4268
4.7993
0.6250
0.0139

|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP7 + IN67)/IP6

0.0306
14.6752
1.1915
0.5059

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

24.0010
20.3657
7.3218
0.7342
−42.0000
20.2264

HVT11
HVT12
HVT21
HVT22
HVT31
HVT32

0
0
0
0
0
0

HVT61
HVT62
HVT71
HVT72
HVT72/HOI
HVT72/HOS

0
0
0
0
0
0

PSTA
PLTA
NSTA
NLTA
SSTA
SLTA

−0.006 mm
0.002 mm
−0.014 mm
−0.014 mm
0.017 mm
0.019 mm

The figures related to the profile curve lengths obtained based on Table 3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 555)

ARE
ARE-1/2
2(ARE/

ARE/TP

ARE
1/2(HEP)
value
(HEP)
HEP) %
TP
(%)

11
4.348
4.412
0.06444
101.48%
1.000
441.20%

12
2.689
3.334
0.64495
123.98%
1.000
333.43%

21
2.404
2.434
0.02944
101.22%
2.730
89.16%

22
1.803
1.818
0.01482
100.82%
2.730
66.61%

31
1.779
1.779
−0.00020
99.99%
4.800
37.06%

32
3.267
3.448
0.18180
105.57%
4.800
71.85%

41
3.735
3.779
0.04443
101.19%
2.001
188.85%

42
3.847
3.868
0.02097
100.54%
2.001
193.30%

51
3.906
3.983
0.07648
101.96%
1.300
306.38%

52
2.908
3.116
0.20797
107.15%
1.300
239.69%

61
3.563
3.999
0.43563
112.23%
3.046
131.29%

62
3.624
3.627
0.00285
100.08%
3.046
119.09%

71
3.684
3.761
0.07717
102.09%
1.491
252.31%

72
3.554
3 575
0.02075
100.58%
1.491
239.82%

ARS

(ARS/

ARS/TP

ARS
EHD
value
ARS-EHD
EHD) %
TP
(%)

11
1.099
1.099
0.00021
100.02%
1.000
109.90%

12
1.099
1.124
0.02533
102.30%
1.000
112.41%

21
1.099
1.101
0.00196
100.18%
2.730
40.33%

22
1.099
1.101
0.00260
100.24%
2.730
40.35%

31
1.099
1.098
−0.00065
99.94%
4.800
22.88%

32
1.099
1.104
0.00528
100.48%
4.800
23.00%

41
1.099
1099
0.00032
100.03%
2.001
54.92%

42
1.099
1.098
−0.00030
99.97%
2.001
54.89%

51
1.099
1.100
0.00083
100.08%
1.300
84.59%

52
1.099
1.108
0.00876
100.80%
1.300
85.20%

61
1.099
1.108
0.00876
100.80%
3.046
36.36%

62
1.099
1.098
−0.00071
99.94%
3.046
36.05%

71
1.099
1.100
0.00115
100.10%
1.491
73.78%

72
1.099
1.099
−0.00018
99.98%
1.491
73.69%

The results of the equations of the second embodiment based on Table 3 and Table 4 are listed in the following table:

Values related to the inflection points of the second

embodiment (Reference wavelength: 555 nm)

HIF311
0
HIF311/HOI
0
SGI311
0
|SGI311|/(|SGI311| +
0

TP3)

THIRD EMBODIMENT

As shown in FIG. 3A and FIG. 3B, an optical image capturing system 30 of the third embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 310, a second lens 320, an aperture 300, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, a seventh lens 370, an infrared rays filter 380, an image plane 390, and an image sensor 392. FIG. 3C is a transverse aberration diagram at 0.7 field of view of the third embodiment of the present application.

The first lens 310 has negative refractive power and is made of glass. An object-side surface 312 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 314 thereof, which faces the image side, is a concave spherical surface.

The second lens 320 has negative refractive power and is made of glass. An object-side surface 322 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 324 thereof, which faces the image side, is a concave spherical surface.

The third lens 330 has positive refractive power and is made of glass. An object-side surface 332 thereof, which faces the object side, is a concave spherical surface, and an image-side surface 334 thereof, which faces the image side, is a convex spherical surface.

The fourth lens 340 has positive refractive power and is made of glass. An object-side surface 342, which faces the object side, is a convex spherical surface, and an image-side surface 344, which faces the image side, is a convex spherical surface.

The fifth lens 350 has negative refractive power and is made of glass. An object-side surface 352, which faces the object side, is a convex spherical surface, and an image-side surface 354, which faces the image side, is a concave spherical surface.

The sixth lens 360 has positive refractive power and is made of glass. An object-side surface 362, which faces the object side, is a convex spherical surface, and an image-side surface 364, which faces the image side, is a concave spherical surface. Whereby, incident angle of each field of view for the sixth lens can be effectively adjusted to improve aberration.

The seventh lens 370 has positive refractive power and is made of glass. An object-side surface 372, which faces the object side, is a convex spherical surface, and an image-side surface 374, which faces the image side, is a concave spherical surface. It may help to shorten the back focal length to keep small in size.

The infrared rays filter 380 is made of glass and is disposed between the seventh lens 370 and the image plane 390. The infrared rays filter 380 gives no contribution to the focal length of the system.

The parameters of the lenses of the third embodiment are listed in Table 5 and Table 6.

TABLE 5

f = 3.1546 mm; f/HEP = 1.64; HAF = 56.0000 deg

Thickness

Refractive
Abbe
Focal length

Surface
Radius of curvature (mm)
(mm)
Material
index
number
(mm)

0
Object
1E+18
5000

1
1^stlens
8.524008484
1.013
glass
1.755
52.32
−5.244

1

2.571020153
2.362

3
2^ndlens
8.978686838
1.000
glass
1.946
17.94
−24.636

4

6.145629393
0.219

5
Aperture
1E+18
0.104

6
3^rdlens
−19.61687006
4.964
glass
1.593
68.34
10.873

7

−5.319766826
0.120

8
4^thlens
16.21585425
3.876
glass
1.835
42.73
9.723

9

−14.60378116
1.594

10
5^thlens
11.36053902
1.000
glass
1.946
17.94
−7.997

11

4.371465224
0.001

12
6^thlens
4.371465224
2.846
glass
1.593
68.34
7.876

13

50
0.050

14
7^thlens
9.627529247
1.610
glass
1.835
42.73
15.206

15

36.33531784
0.242

16
Infrared
1E+18
0.550
BK_7
1.517
64.17

rays

filter

17

1E+18
2.453

18
Image
1E+18
−0.003

plane

Reference wavelength (d-line): 555 nm.

The position of blocking light: the clear aperture of the third surface is 2.404 mm; the clear aperture of the seventh surface is 3.199 mm.

TABLE 6

Coefficients of the aspheric surfaces

Surface
1
2
3
4
6
7
8

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

Surface
9
10
11
12
13
14
15

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

An equation of the aspheric surfaces of the third embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the third embodiment based on Table 5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm)

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

0.6016
0.1280
0.2901
0.3244
0.3945
0.4005

|f/f7|
TP3/TP1
TP5/TP6
IN12/IN23
IN12/f
IN67/f

0.2075
4.8987
0.3514
7.3014
0.7489
0.0158

|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP7 + IN67)/TP6

0.2129
2.2658
3.3756
0.5832

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

24.0010
20.7588
7.3218
0.8086
−42.0000
23.5022

HVT11
HVT12
HVT21
HVT22
HVT31
HVT32

0
0
0
0
0
0

HVT61
HVT62
HVT71
HVT72
HVT72/HOI
HVT72/HOS

0
0
0
0
0
0

PSTA
PLTA
NSTA
NLTA
SSTA
SLTA

−0.013 mm
−0.003 mm
−0.008 mm
0.006 mm
0.024 mm
0.017 mm

The figures related to the profile curve lengths obtained based on Table 5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm)

ARE
1/2(HEP)
ARE value
ARE-1/2(HEP)
2(ARE/HEP) %
TP
ARE/TP (%)

11
4.000
4.164
0.16360
104.09%
1.013
410.92%

12
2.356
2.977
0.62121
126.37%
1.013
293.82%

21
2.404
2.434
0.02944
101.22%
1.000
243.37%

22
1.432
1.444
0.01251
100.87%
1.000
144.43%

31
1.461
1.461
0.00041
100.03%
4.964
29.44%

32
3.199
3.431
0.23235
107.26%
4.964
69.12%

41
3.878
3.916
0.03761
100.97%
3.876
101.04%

42
4.208
4.269
0.06023
101.43%
3.876
110.14%

51
4.112
4.206
0.09477
102.30%
1.000
420.65%

52
2.999
3.304
0.30477
110.16%
1.000
330.36%

61
3.663
4.341
0.67837
118.52%
2.846
152.55%

62
3.733
3.736
0.00327
100.09%
2.846
131.30%

71
3.847
3.956
0.10990
102.86%
1.610
245.80%

72
3.732
3.739
0.00623
100.17%
1.610
232.27%

ARS
EHD
ARS value
ARS-EHD
(ARS/EHD) %
TP
ARS/TP (%)

11
0.962
0.963
0.00131
100.14%
1.013
95.05%

12
0.962
0.985
0.02318
102.41%
1.013
97.20%

21
0.962
0.963
0.00111
100.12%
1.000
96.28%

22
0.962
0.965
0.00323
100.34%
1.000
96.50%

31
0.962
0.961
−0.00035
99.96%
4.964
19.37%

32
0.962
0.966
0.00457
100.48%
4.964
19.47%

41
0.962
0.962
−0.00017
99.98%
3.876
24.81%

42
0.962
0.962
−0.00004
100.00%
3.876
24.81%

51
0.962
0.962
0.00042
100.04%
1.000
96.21%

52
0.962
0.969
0.00718
100.75%
1.000
96.89%

61
0.962
0.969
0.00718
100.75%
2.846
34.05%

62
0.962
0.961
−0.00068
99.93%
2.846
33.77%

71
0.962
0.963
0.00087
100.09%
1.610
59.80%

72
0.962
0.961
−0.00062
99.94%
1.610
59.71%

The results of the equations of the third embodiment based on Table 5 and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment

(Reference wavelength: 555 nm)

HIF311
0
HIF311/HOI
0
SGI311
0
|SGI311|/(|SGI311| + TP3)
0

FOURTH EMBODIMENT

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 of the fourth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 410, a second lens 420, an aperture 400, a third lens 430, a fourth lens 440, a fifth lens 450, a sixth lens 460, a seventh lens 470, an infrared rays filter 480, an image plane 490, and an image sensor 492. FIG. 4C is a transverse aberration diagram at 0.7 field of view of the fourth embodiment of the present application.

The first lens 410 has negative refractive power and is made of glass. An object-side surface 412 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 414 thereof, which faces the image side, is a concave spherical surface.

The second lens 420 has negative refractive power and is made of glass. An object-side surface 422 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 424 thereof, which faces the image side, is a concave spherical surface.

The third lens 430 has positive refractive power and is made of glass. An object-side surface 432 thereof, which faces the object side, is a concave spherical surface, and an image-side surface 434 thereof, which faces the image side, is a convex spherical surface.

The fourth lens 440 has positive refractive power and is made of glass. An object-side surface 442, which faces the object side, is a convex spherical surface, and an image-side surface 444, which faces the image side, is a convex spherical surface.

The fifth lens 450 has negative refractive power and is made of glass. An object-side surface 452, which faces the object side, is a convex spherical surface, and an image-side surface 454, which faces the image side, is a concave spherical surface.

The sixth lens 460 has positive refractive power and is made of glass. An object-side surface 462, which faces the object side, is a convex spherical surface, and an image-side surface 464, which faces the image side, is a concave spherical surface. Whereby, incident angle of each field of view for the sixth lens 460 can be effectively adjusted to improve aberration.

The seventh lens 470 has positive refractive power and is made of glass. An object-side surface 472, which faces the object side, is a convex spherical surface, and an image-side surface 474, which faces the image side, is a concave spherical surface. It may help to shorten the back focal length to keep small in size. In addition, it may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

The infrared rays filter 480 is made of glass and is disposed between the seventh lens 470 and the image plane 490. The infrared rays filter 480 gives no contribution to the focal length of the system.

The parameters of the lenses of the fourth embodiment are listed in Table 7 and Table 8.

TABLE 7

f = 3.3687 mm; f/HEP = 1.64; HAF = 56.0000 deg

Focal

Radius of
Thickness

Refractive
Abbe
length

Surface
curvature (mm)
(mm)
Material
index
number
(mm)

0
Object
1E+18
5000

1
1^stlens
14.13726392
1.000
glass
1.755
52.32
−4.744

2

2.778329129
1.769

3
2^ndlens
10.83042628
2.730
glass
1.946
17.94
−648.381

4

9.333586527
0.185

5
Aperture
1E+18
0.130

6
3^rdlens
−81.24010171
5.000
glass
1.593
68.34
9.787

7

−5.553178922
0.060

8
4^thlens
14.38931727
2.077
glass
1.835
42.73
10.669

9

−22.0791214
1.049

10
5^thlens
11.24981742
1.144
glass
1.946
17.94
−9.546

11

4.786488409
0.001

12
6^thlens
4.786488409
2.624
glass
1.593
68.34
8.717

13

50
0.050

14
7^thlens
11.24043879
2.033
glass
1.835
42.73
26.433

15

20.92902617
0.348

16
Infrared rays
1E+18
0.550
BK_7
1.517
64.17

filter

17

1E+18
2.450

18
Image plane
1E+18
0.000

Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the third

surface is 2.404 mm: the clear aperture of the seventh surface is 3.251 mm.

TABLE 8

Coefficients of the aspheric surfaces

Surface
1
2
3
4
6
7
8

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

Surface
9
10
11
12
13
14
15

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

An equation of the aspheric surfaces of the fourth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the fourth embodiment based on Table 7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm)

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

0.7101
0.0052
0.3442
0.3158
0.3529
0.3865

|f/f7|
TP3/TP1
TP5/TP6
IN12/IN23
IN12/f
IN67/f

0.1274
5.0000
0.4359
5.6118
0.5251
0.0148

|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP7 + IN67)/IP6

0.0073
66.2486
1.0144
0.7939

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

23.2003
19.8519
7.0776
0.7550
−42.0000
24.0154

HVT11
HVT12
HVT21
HVT22
HVT31
HVT32

0
0
0
0
0
0

HVT61
HVT62
HVT71
HVT72
HVT72/HOI
HVT72/HOS

0
0
0
0
0
0

PSTA
PLTA
NSTA
NLTA
SSTA
SLTA

−0.002 mm
−0.0002 mm
−0.007 mm
−0.001 mm
0.017 mm
0.012 mm

The figures related to the profile curve lengths obtained based on Table 7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm)

ARE
1/2(HEP)
ARE value
ARE-1/2(HEP)
2(ARE/HEP) %
TP
ARE/TP (%)

11
4.000
4.054
0.05435
101.36%
1.000
405.43%

12
2.427
2.950
0.52285
121.54%
1.000
294.98%

21
2.404
2.424
0.01994
100.83%
2.730
88.81%

22
1.583
1.591
0.00745
100.47%
2.730
58.28%

31
1.686
1.686
0.00007
100.00%
5.000
33.72%

32
3.251
3.472
0.22119
106.80%
5.000
69.44%

41
3.833
3.879
0.04605
101.20%
2.077
186.76%

42
3.942
3.963
0.02088
100.53%
2.077
190.82%

51
3.977
4.064
0.08707
102.19%
1.144
355.28%

52
3.958
4.660
0.70164
117.73%
1.144
407.41%

61
3.618
4.100
0.48266
113.34%
2.624
156.26%

62
3.653
3.655
0.00253
100.07%
2.624
139.29%

71
3.704
3.775
0.07034
101.90%
2.033
185.62%

72
3.521
3.538
0.01666
100.47%
2.033
173.98%

ARS
EHD
ARS value
ARS-EHD
(ARS/EHD) %
TP
ARS/TP (%)

11
1.027
1.028
0.00080
100.08%
1.000
102.79%

12
1.027
1.052
0.02485
102.42%
1.000
105.20%

21
1.027
1.029
0.00144
100.14%
2.730
37.68%

22
1.027
1.029
0.00198
100.19%
2.730
37.70%

31
1.027
1.027
−0.00008
99.99%
5.000
20.54%

32
1.027
1.033
0.00584
100.57%
5.000
20.66%

41
1.027
1.028
0.00077
100.07%
2.077
49.49%

42
1.027
1.027
0.00026
100.03%
2.077
49.47%

51
1.027
1.028
0.00133
100.13%
1.144
89.91%

52
1.027
1.035
0.00794
100.77%
1.144
90.49%

61
1.027
1.035
0.00794
100.77%
2.624
39.44%

62
1.027
1.027
−0.00003
100.00%
2.624
39.14%

71
1.027
1.028
0.00133
100.13%
2.033
50.57%

72
1.027
1.027
0.00031
100.03%
2.033
50.52%

The results of the equations of the fourth embodiment based on Table 7 and Table 8 are listed in the following table

Values related to the inflection points of the fourth embodiment

(Reference wavelength: 555 nm)

HIF411
0
HIF411/HOI
0
SGI411
0
|SGI411|/(|SGI411| + TP4)
0

FIFTH EMBODIMENT

As shown in FIG. 5A and FIG. 5B, an optical image capturing system 50 of the fifth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 510, a second lens 520, an aperture 500, a third lens 530, a fourth lens 540, a fifth lens 550, a sixth lens 560, a seventh lens 570, an infrared rays filter 580, an image plane 590, and an image sensor 592. FIG. 5C is a transverse aberration diagram at 0.7 field of view of the fifth embodiment of the present application.

The first lens 510 has negative refractive power and is made of glass. An object-side surface 512, which faces the object side, is a convex spherical surface, and an image-side surface 514, which faces the image side, is a concave spherical surface.

The second lens 520 has negative refractive power and is made of glass. An object-side surface 522 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 524 thereof, which faces the image side, is a concave spherical surface.

The third lens 530 has positive refractive power and is made of glass. An object-side surface 532, which faces the object side, is a concave spherical surface, and an image-side surface 534, which faces the image side, is a convex spherical surface.

The fourth lens 540 has positive refractive power and is made of glass. An object-side surface 542, which faces the object side, is a convex spherical surface, and an image-side surface 544, which faces the image side, is a convex spherical surface.

The fifth lens 550 has negative refractive power and is made of glass. An object-side surface 552, which faces the object side, is a convex spherical surface, and an image-side surface 554, which faces the image side, is a concave spherical surface.

The sixth lens 560 has positive refractive power and is made of glass. An object-side surface 562, which faces the object side, is a convex spherical surface, and an image-side surface 564, which faces the image side, is a concave spherical surface. Whereby, incident angle of each field of view for the sixth lens 560 can be effectively adjusted to improve aberration.

The seventh lens 570 has positive refractive power and is made of glass. An object-side surface 572, which faces the object side, is a convex spherical surface, and an image-side surface 574, which faces the image side, is a concave spherical surface. It may help to shorten the back focal length to keep small in size. In addition, it may help to shorten the back focal length to keep small in size. In addition, it could effectively suppress the incidence angle of light in the off-axis view field, and correct the off-axis view field aberration.

The infrared rays filter 580 is made of glass and between the seventh lens 570 and the image plane 590. The infrared rays filter 580 gives no contribution to the focal length of the system.

The parameters of the lenses of the fifth embodiment are listed in Table 9 and Table 10.

TABLE 9

f = 3.3717 mm; f/HEP = 1.64; HAF = 56.0000 deg

Focal

Radius of
Thickness

Refractive
Abbe
length

Surface
curvature (mm)
(mm)
Material
index
number
(mm)

0
Object
1E+18
5000

1
1^stlens
14.27766441
1.000
glass
1.755
52.32
−4.735

2

2.780513503
1.765

3
2^ndlens
10.75533883
2.730
glass
1.946
17.94
−988.180

4

9.31556236
0.186

5
Aperture
1E+18
0.126

6
3^rdlens
−83.60961683
5.000
glass
1.593
68.34
9.787

7

−5.559945453
0.060

8
4^thlens
14.44205201
2.054
glass
1.835
42.73
10.649

9

−21.86548937
1.042

10
5^thlens
11.3032067
1.162
glass
1.946
17.94
−9.545

11

4.793413705
0.001

12
6^thlens
4.793413705
2.649
glass
1.593
68.34
8.729

13

50
0.050

14
7^thlens
11.12341076
1.998
glass
1.835
42.73
26.320

15

20.59448122
0.353

16
Infrared rays
1E+18
0.550
BK_7
1.517
64.17

filter

17

1E+18
2.450

18
Image
1E+18
0.000

plane

Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the third

surface is 2.404 mm; the clear aperture of the seventh surface is 3.250 mm.

TABLE 10

Coefficients of the aspheric surfaces

Surface
1
2
3
4
6
7
8

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

Surface
9
10
11
12
13
14
15

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

An equation of the aspheric surfaces of the fifth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the fifth embodiment based on Table 9 and Table 10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm)

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

0.7121
0.0034
0.3445
0.3166
0.3533
0.3863

|f/f7|
TP3/TP1
TP5/TP6
IN12/IN23
IN12/f
IN67/f

0.1281
5.0000
0.4388
5.6653
0.5236
0.0148

|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP7 + IN67)/TP6

0.0048
100.9722
1.0131
0.7730

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

23.1758
19.8225
7.0701
0.7549
−42.0000
23.9518

HVT11
HVT12
HVT21
HVT22
HVT31
HVT32

0
0
0
0
0
0

HVT61
HVT62
HVT71
HVT72
HVT72/HOI
HVT72/HOS

0
0
0
0
0
0

PSTA
PLTA
NSTA
NLTA
SSTA
SLTA

−0.002 mm
−0.0002 mm
−0.007 mm
−0.001 mm
0.017 mm
0.012 mm

The figures related to the profile curve lengths obtained based on Table 9 and Table 10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm)

ARE
1/2(HEP)
ARE value
ARE-1/2(HEP)
2(ARE/HEP) %
TP
ARE/TP (%)

11
3.701
3.744
0.04272
101.15%
1.000
374.38%

12
2.368
2.834
0.46556
119.66%
1.000
283.36%

21
2.404
2.424
0.02023
100.84%
2.730
88.82%

22
1.585
1.592
0.00701
100.44%
2.730
58.31%

31
1.685
1.685
−0.00034
99.98%
5.000
33.70%

32
3.250
3.470
0.22004
106.77%
5.000
69.40%

41
3.773
3.817
0.04429
101.17%
2.054
185.80%

42
3.862
3.881
0.01984
100.51%
2.054
188.92%

51
3.830
3.906
0.07635
101.99%
1.162
336.05%

52
3.129
3.408
0.27919
108.92%
1.162
293.18%

61
3.130
3.409
0.27933
108.92%
2.649
128.71%

62
3.009
3.011
0.00139
100.05%
2.649
113.67%

71
2.978
3.014
0.03574
101.20%
1.998
150.87%

72
2.761
2.768
0.00757
100.27%
1.998
138.59%

ARS
EHD
ARS value
ARS-EHD
(ARS/EHD) %
TP
ARS/TP (%)

11
1.028
1.029
0.00085
100.08%
1.000
102.89%

12
1.028
1.053
0.02495
102.43%
1.000
105.30%

21
1.028
1.030
0.00153
100.15%
2.730
37.72%

22
1.028
1.030
0.00206
100.20%
2.730
37.74%

31
1.028
1.028
−0.00002
100.00%
5.000
20.56%

32
1.028
1.034
0.00591
100.57%
5.000
20.68%

41
1.028
1.029
0.00083
100.08%
2.054
50.08%

42
1.028
1.028
0.00034
100.03%
2.054
50.06%

51
1.028
1.029
0.00138
100.13%
1.162
88.56%

52
1.028
1.036
0.00801
100.78%
1.162
89.13%

61
1.028
1.036
0.00801
100.78%
2.649
39.11%

62
1.028
1.028
0.00003
100.00%
2.649
38.81%

71
1.028
1.029
0.00143
100.14%
1.998
51.54%

72
1.028
1.028
0.00039
100.04%
1.998
51.49%

The results of the equations of the fifth embodiment based on Table 9 and Table 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment

(Reference wavelength: 555 nm)

HIF211
0
HIF211/HOI
0
SGI211
0
|SGI211|/(|SGI211| + TP2)
0

As shown in FIG. 6A and FIG. 6B, an optical image capturing system 60 of the sixth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 610, a second lens 620, an aperture 600, a third lens 630, a fourth lens 640, a fifth lens 650, a seventh lens 660, a seventh lens 670, an infrared rays filter 680, an image plane 690, and an image sensor 692. FIG. 6C is a transverse aberration diagram at 0.7 field of view of the sixth embodiment of the present application.

The first lens 610 has negative refractive power and is made of glass. An object-side surface 612, which faces the object side, is a convex spherical surface, and an image-side surface 614, which faces the image side, is a concave spherical surface.

The second lens 620 has negative refractive power and is made of glass. An object-side surface 622 thereof, which faces the object side, is a convex spherical surface, and an image-side surface 624 thereof, which faces the image side, is a concave spherical surface.

The third lens 630 has positive refractive power and is made of glass. An object-side surface 632, which faces the object side, is a concave spherical surface, and an image-side surface 634, which faces the image side, is a convex spherical surface.

The fourth lens 640 has positive refractive power and is made of glass. An object-side surface 642, which faces the object side, is a convex spherical surface, and an image-side surface 644, which faces the image side, is a convex spherical surface.

The fifth lens 650 has negative refractive power and is made of glass. An object-side surface 652, which faces the object side, is a convex spherical surface, and an image-side surface 654, which faces the image side, is a concave spherical surface.

The sixth lens 660 has positive refractive power and is made of glass. An object-side surface 662, which faces the object side, is a convex spherical surface, and an image-side surface 664, which faces the image side, is a concave spherical surface. Whereby, incident angle of each field of view for the sixth lens 660 can be effectively adjusted to improve aberration.

The seventh lens 670 has positive refractive power and is made of glass. An object-side surface 672, which faces the object side, is a convex spherical surface, and an image-side surface 674, which faces the image side, is a concave spherical surface. The object-side surface 672 and the image-side surface 674 both have an inflection point. It may help to shorten the back focal length to keep small in size. In addition, it may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

The infrared rays filter 680 is made of glass and between the seventh lens 670 and the image plane 690. The infrared rays filter 680 gives no contribution to the focal length of the system.

The parameters of the lenses of the sixth embodiment are listed in Table 11 and Table 12.

TABLE 11

f = 3.2667 mm; f/HEP = 1.64; HAF = 56.0000 deg

Focal

Radius of
Thickness

Refractive
Abbe
length

Surface
curvature (mm)
(mm)
Material
index
number
(mm)

0
Object
1E+18
5000

1
1^stlens
9.381908264
1.000
glass
1.755
52.32
−5.243

2

2.662464749
1.865

3
2^ndlens
14.49338316
2.730
glass
1.946
17.94
−57.798

4

10.42373821
0.160

5
Aperture
1E+18
0.120

6
3^rdlens
−17.19380106
5.000
glass
1.593
68.34
10.834

7

−5.192790123
0.060

8
4^thlens
11.30761047
1.875
glass
1.835
42.73
11.189

9

−50.8865342
1.744

10
5^thlens
10.93106985
1.000
glass
1.946
17.94
−9.006

11

4.599181732
0.001

12
6^thlens
4.599181732
2.713
glass
1.593
68.34
8.336

13

50
0.050

14
7^thlens
10.35581591
2.014
glass
1.835
42.73
16.499

15

37.55066215
0.232

16
Infrared rays
1E+18
0.550
BK_7
1.517
64.17

filter

17

1E+18
2.450

18
Image
1E+18
0.000

plane

Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the

third surface is 2.404 mm; the clear aperture of the seventh surface is 3.255 mm.

TABLE 12

Coefficients of the aspheric surfaces

Surface
1
2
4
5
6
7
8

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

Surface
9
10
11
12
13
14
15

k
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A4
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A6
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A8
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A10
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

A12
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

E+00
E+00
E+00
E+00
E+00
E+00
E+00

An equation of the aspheric surfaces of the sixth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the sixth embodiment based on Table 11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm)

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

0.6231
0.0565
0.3015
0.2919
0.3627
0.3919

|f/f7|
TP3/TP1
TP5/TP6
IN12/IN23
IN12/f
IN67/f

0.1980
5.0000
0.3686
6.6588
0.5708
0.0153

|f1/f2|
|f2/f3|
(TP1 + IN12)/TP2
(TP7 + IN67)/TP6

0.0907
5.3350
1.0495
0.7609

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

23.5641
20.3322
7.1886
0.7558
−42.0000
28.7630

HVT11
HVT12
HVT21
HVT22
HVT31
HVT32

0
0
0
0
0
0

HVT61
HVT62
HVT71
HVT72
HVT72/HOI
HVT72/HOS

0
0
0
0
0
0

PSTA
PLTA
NSTA
NLTA
SSTA
SLTA

0.002 mm
−0.002 mm
−0.008 mm
−0.005 mm
0.017 mm
0.009 mm

The figures related to the profile curve lengths obtained based on Table 11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm)

ARE
1/2(HEP)
ARE value
ARE-1/2(HEP)
2(ARE/HEP) %
TP
ARE/TP (%)

11
4.176
4.327
0.15084
103.61%
1.000
432.68%

12
2.479
3.188
0.70894
128.60%
1.000
318.80%

21
2.404
2.415
0.01091
100.45%
2.730
88.48%

22
1.542
1.548
0.00526
100.34%
2.730
56.70%

31
1.557
1.559
0.00199
100.13%
5.000
31.18%

32
3.255
3.517
0.26218
108.06%
5.000
70.33%

41
3.804
3.880
0.07556
101.99%
1.875
206.91%

42
3.858
3.862
0.00365
100.09%
1.875
205.95%

51
3.934
4.024
0.09011
102.29%
1.000
402.43%

52
3.704
4.306
0.60210
116.26%
1.000
430.61%

61
3.593
4.124
0.53025
114.76%
2.713
151.99%

62
3.658
3.660
0.00259
100.07%
2.713
134.91%

71
3.742
3.828
0.08572
102.29%
2.014
190.01%

72
3.588
3.592
0.00448
100.12%
2.014
178.34%

ARS
EHD
ARS value
ARS-EHD
(ARS/EHD) %
TP
ARS/TP (%)

11
0.996
0.997
0.00090
100.09%
1.000
99.69%

12
0.996
1.020
0.02378
102.39%
1.000
101.98%

21
0.996
0.996
−0.00019
99.98%
2.730
36.48%

22
0.996
0.997
0.00055
100.05%
2.730
36.51%

31
0.996
0.996
−0.00041
99.96%
5.000
19.91%

32
0.996
1.001
0.00522
100.52%
5.000
20.02%

41
0.996
0.996
0.00032
100.03%
1.875
53.13%

42
0.996
0.995
−0.00091
99.91%
1.875
53.07%

51
0.996
0.996
0.00041
100.04%
1.000
99.64%

52
0.996
1.003
0.00696
100.70%
1.000
100.29%

61
0.996
1.003
0.00696
100.70%
2.713
36.97%

62
0.996
0.995
−0.00091
99.91%
2.713
36.68%

71
0.996
0.997
0.00057
100.06%
2.014
49.47%

72
0.996
0.995
−0.00085
99.91%
2.014
49.40%

The results of the equations of the sixth embodiment based on Table 11 and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment

(Reference wavelength: 555 nm)

HIF211
0
HIF211/HOI
0
SGI211
0
|SGI211|/(|SGI211| + TP2)
0

It must be pointed out that the embodiments described above are only some embodiments of the present invention. All equivalent structures which employ the concepts disclosed in this specification and the appended claims should fall within the scope of the present invention.

OPTICAL IMAGE CAPTURING SYSTEM

Information

Publication Number

Date Filed

Date Published

Inventors

Original Assignees

CPC

International Classifications

Abstract

Description

Claims

Priority Claims (1)