OPTICAL IMAGE CAPTURING SYSTEM

Abstract

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens has negative refractive force. Both an object-side surface and an image-side surface of the seventh lens are aspheric surfaces. At least one surface of the seventh lens has at least an inflection point thereon. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Claims

1. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising: a first lens having positive refractive power; a second lens having refractive power; a third lens having positive refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power; a seventh lens having refractive power; and an image plane; wherein the optical image capturing system has a total of the seven lenses with refractive power; all lenses among the first to the seventh lenses are made of plastic; at least one lens among the fifth to the seventh lenses has positive refractive power; each lens of the first to the seventh lenses has an object-side surface, which faces the object side, and an image-side surface, which faces the image side; wherein the optical image capturing system satisfies:
2.0≤f/HEP≤2.6;
5 deg≤HAF≤10 deg;
10≤HOS/HOI≤15; and
0.5≤SETP/STP≤2.5; wherein f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HAF is a half of a maximum field angle of the optical image capturing system; HOS is a distance between the object-side surface of the first lens and the image plane on the optical axis; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; ETP1, ETP2, ETP3, ETP4, ETP5, ETP6, and ETP7 are respectively a thickness of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens at a height of half of the entrance pupil diameter away from the optical axis; SETP is a sum of the aforementioned ETP1 to ETP7; TP1, TP2, TP3, TP4, TP5, TP6, and TP7 are respectively a thickness of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens on the optical axis; STP is a sum of the aforementioned TP1 to TP7.

2. The optical image capturing system of claim 1, wherein the fifth lens and the sixth lens are separated by air.

3. The optical image capturing system of claim 1, wherein the object-side surface of the first lens passed through by the optical axis is a convex surface, and the image-side surface of the first lens passed through by the optical axis is a convex surface.

4. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:
TP1>TP6>TP4>TP3>TP2>TP7>TP5.

5. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:
0.4≤TP1/TP2≤5.5.

6. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:
0.25≤TP6/TP7≤30.5.

7. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:
0.15≤f1/f3≤0.25; wherein f1 is a focal length of the first lens; f3 is a focal length of the third lens.

8. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:
MTFE0≥0.2;
MTFE3≥0.01;
MTFE7≥0.01; and
|TDT|<250%; wherein MTFE0, MTFE3, and MTFE7 are respectively a value of modulation transfer function of visible light in a spatial frequency of 55 cycles/mm at the optical axis, 0.3 HOI, and 0.7 HOI on an image plane for visible light; TDT is a TV distortion for image formation in the optical image capturing system.

9. The optical image capturing system of claim 1, further comprising an aperture, wherein the optical image capturing system further satisfies:
0.45≤InS/HOS≤0.71; wherein InS is a distance between the aperture and the image plane on the optical axis.

10. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising: a first lens having positive refractive power; a second lens having refractive power; a third lens having positive refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power; a seventh lens having positive refractive power; and an image plane; wherein the optical image capturing system has a total of seven lens with refractive power; all lenses among the first lens to the seventh lens are made of plastic; at least one lens among the fifth lens to the sixth lens has positive refractive power; each lens among the first to the seventh lenses has an object-side surface, which faces the object side, and an image-side surface, which faces the image side; the image-side surface of the first lens passed through by the optical axis is a convex surface; wherein the optical image capturing system satisfies:
2.0≤f/HEP≤2.6;
5 deg<HAF≤10 deg;
10O≤HOS/HOI≤15; and
0.2≤EIN/ETL<1; wherein 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 the object-side surface of the first lens and the image plane on the optical axis; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; HAF is a half of the maximum field angle of the optical image capturing system; ETL is a distance in parallel with the optical axis between a coordinate point at a height of half of the entrance pupil diameter away from the optical axis on the object-side surface of the first lens and the image plane; EIN is a distance in parallel with the optical axis between the coordinate point at the height of half of the entrance pupil diameter away from the optical axis on the object-side surface of the first lens and a coordinate point at a height of half of the entrance pupil diameter away from the optical axis on the image-side surface of the seventh lens.

11. The optical image capturing system of claim 10, wherein the fifth lens and the sixth lens are separated by air.

12. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:
1≤ARS/EHD≤2.0; wherein, for any surface of any lens, EHD is a maximum effective half diameter thereof, ARS is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to an end point of the maximum effective half diameter thereof.

13. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:
IN34>IN56>IN45>IN23>IN67>IN12; wherein IN12 is a horizontal distance between the first lens and the second lens on the optical axis; IN23 is a horizontal distance between the second lens and the third lens on the optical axis; IN34 is a horizontal distance between the third lens and the fourth lens on the optical axis; IN45 is a horizontal distance between the fourth lens and the fifth lens on the optical axis; IN56 is a horizontal distance between the fifth lens and the sixth lens on the optical axis; IN67 is a horizontal distance between the sixth lens and the seventh lens on the optical axis.

14. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:
1.2≤IN34/IN45≤13; wherein IN34 is a horizontal distance between the third lens and the fourth lens on the optical axis; IN45 is a horizontal distance between the fourth lens and the fifth lens on the optical axis.

15. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:
Nd1>Nd2>Nd7; wherein Nd1 is a refractive index of the first lens; Nd2 is a refractive index of the second lens; Nd7 is a refractive index of the seventh lens.

16. The optical image capturing system of claim 10, further comprising an aperture disposed between the second lens and the third lens.

17. The optical image capturing system of claim 10, further comprising an aperture, wherein the optical image capturing system further satisfies:
0.45≤InS/HOS≤0.71; wherein InS is a distance between the aperture and the image plane on the optical axis.

18. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:
MTFQ0≥0.2;
MTFQ3≥0.01;
MTFQ7≥0.01; and
HOI>1.0 mm; wherein MTFQ0, MTFQ3, and MTFQ7 are respectively values of modulation transfer function of visible light in a spatial frequency of 110 cycles/mm at the optical axis, 0.3 HOI, and 0.7 HOI on the image plane for visible light.

19. The optical image capturing system of claim 10, wherein the object-side surface of the first lens passed through by the optical axis is a convex surface, and the image-side surface of the first lens passed through by the optical axis is a convex surface.

20. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising: a first lens having positive refractive power; a second lens having refractive power; a third lens having positive refractive power; a fourth lens having refractive power; a fifth lens having positive refractive power; a sixth lens having positive refractive power; a seventh lens having refractive power; and an image plane; wherein the optical image capturing system has a total of the seven lenses having refractive power; all lenses among the first lens to the seventh lens are made of plastic; each lens of the first to the seventh lenses has an object-side surface, which faces the object side, and an image-side surface, which faces the image side; the object-side surface of the first lens passed through by the optical axis is a convex surface, and the image-side surface of the first lens passed through by the optical axis is a convex surface; wherein the optical image capturing system satisfies:
2.0≤f/HEP≤2.6;
5 deg<HAF≤10 deg;
10≤HOS/HOI≤15; and
0.2≤EIN/ETL<1; wherein 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 the object-side surface of the first lens and the image plane on the optical axis; HAF is a half of a maximum view angle of the optical image capturing system; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane; ETL is a distance in parallel with the optical axis between a coordinate point at a height of half of the entrance pupil diameter away from the optical axis on the object-side surface of the first lens and the image plane; EIN is a distance in parallel with the optical axis between the coordinate point at the height of half of the entrance pupil diameter away from the optical axis on the object-side surface of the first lens and a coordinate point at a height of half of the entrance pupil diameter away from the optical axis on the image-side surface of the seventh lens.

21. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:
0.4≤TP1/TP2≤5.5; wherein TP1 is a thickness of the first lens on the optical axis; TP2 is a thickness of the second lens on the optical axis.

22. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:
0.15≤f1/f3≤0.25; wherein f1 is a focal length of the first lens; f3 is a focal length of the third lens.

23. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:
1.2≤IN34/IN45≤13; wherein IN34 is a horizontal distance between the third lens and the fourth lens on the optical axis; IN45 is a horizontal distance between the fourth lens and the fifth lens on the optical axis.

24. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:
MTFE0≥0.2;
MTFE3≥0.01;
MTFE7≥0.01; and
|TDT|<250%; wherein MTFE0, MTFE3, and MTFE7 are respectively a value of modulation transfer function of visible light in a spatial frequency of 55 cycles/mm at the optical axis, 0.3 HOI, and 0.7 HOI on an image plane for visible light; TDT is a TV distortion for image formation in the optical image capturing system.

25. The optical image capturing system of claim 20, further comprising an aperture and an image sensor, wherein the image sensor is disposed on the image plane and is provided with at least 100000 pixels, and the optical image capturing system further satisfies:
0.45≤InS/HOS≤0.71; wherein InS is a distance between the aperture and the image plane on the optical axis.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0044] 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

[0045] FIG. 1A is a schematic diagram of a first embodiment of the present invention;

[0046] 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;

[0047] FIG. 1C shows a feature map of modulation transformation of the optical image capturing system of the first embodiment of the present application in visible spectrum;

[0048] FIG. 2A is a schematic diagram of a second embodiment of the present invention;

[0049] 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;

[0050] FIG. 2C shows a feature map of modulation transformation of the optical image capturing system of the second embodiment of the present application in visible spectrum;

[0051] FIG. 3A is a schematic diagram of a third embodiment of the present invention;

[0052] 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;

[0053] FIG. 3C shows a feature map of modulation transformation of the optical image capturing system of the third embodiment of the present application in visible spectrum;

[0054] FIG. 4A is a schematic diagram of a fourth embodiment of the present invention;

[0055] 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;

[0056] FIG. 4C shows a feature map of modulation transformation of the optical image capturing system of the fourth embodiment in visible spectrum;

[0057] FIG. 5A is a schematic diagram of a fifth embodiment of the present invention;

[0058] 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;

[0059] FIG. 5C shows a feature map of modulation transformation of the optical image capturing system of the fifth embodiment of the present application in visible spectrum;

[0060] FIG. 6A is a schematic diagram of a sixth embodiment of the present invention;

[0061] 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

[0062] FIG. 6C shows a feature map of modulation transformation of the optical image capturing system of the sixth embodiment of the present application in visible spectrum.

DETAILED DESCRIPTION OF THE INVENTION

[0063] 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. Image heights in the following embodiments are all almost 3.91 mm.

[0064] 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.

[0065] The optical image capturing system of the present invention satisfies 0.5≤ΣPPR/|ΣNPR|≤15, and a preferable range is 1≤ΣPPR/|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.

[0066] 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.

[0067] The optical image capturing system of the present invention further is provided with an aperture to increase image quality.

[0068] 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.

[0069] 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 ETP 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] The optical image capturing 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF713|≤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.

[0085] 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.

[0086] 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.

[0087] An equation of aspheric surface is

z=ch.sup.2/[1+[1−(k+1)c.sup.2h.sup.2].sup.0.5]+A4h.sup.4+A6h.sup.6+A8h.sup.8+A10h.sup.10+A12h.sup.12+A14h.sup.14+A16h.sup.16+A18h.sup.18+A20h.sup.20+. . .  (1)

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] We provide several embodiments in conjunction with the accompanying drawings for the best understanding, which are:

First Embodiment

[0096] 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 modulation transformation of the optical image capturing system 10 of the first embodiment of the present application in visible spectrum.

[0097] 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 thickness of the first lens 110 on the optical axis is TP1, and a thickness of the first lens 110 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP1.

[0098] The first lens satisfies SGI111=−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.

[0099] The first lens satisfies SGI112=0 mm; SGI122=4.2315 mm; |SGI112|/(|SGI112|+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.

[0100] The first lens 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.

[0101] The first lens 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.

[0102] 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 thickness of the second lens 120 on the optical axis is TP2, and thickness of the second lens 120 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP2.

[0103] For the second lens, 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.

[0104] 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.

[0105] 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 thickness of the third lens 130 on the optical axis is TP3, and a thickness of the third lens 130 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP3.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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 thickness of the fourth lens 140 on the optical axis is TP4, and a thickness of the fourth lens 140 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP4.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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 thickness of the fifth lens 150 on the optical axis is TP5, and a thickness of the fifth lens 150 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP5.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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 aspheric surface, and an image-side surface 164, which faces the image side, is a concave aspheric surface. The object-side surface 162 and the image-side surface 164 both have an inflection point. Whereby, the incident angle of each view field entering the sixth lens 160 can be effectively adjusted to improve aberration. A thickness of the sixth lens 160 on the optical axis is TP6, and a thickness of the sixth lens 160 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP6.

[0121] 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.

[0122] 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.

[0123] 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. The object-side surface 172 and the image-side surface 174 both have an inflection point. A thickness of the seventh lens 170 on the optical axis is TP7, and a thickness of the seventh lens 170 at the height of a half of the entrance pupil diameter (HEP) is denoted by ETP7.

[0124] The seventh lens 170 satisfies SGI711=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.

[0125] 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.

[0126] A distance in parallel with the optical axis between a coordinate point at a height of ½ HEP on the object-side surface of the first lens 110 and the image plane is ETL, and a distance in parallel with the optical axis between the coordinate point at the height of ½ HEP on the object-side surface of the first lens 110 and a coordinate point at a height of ½ HEP on the image-side surface of the seventh lens 140 is EIN, which satisfies: ETL=26.980 mm; EIN=24.999 mm; EIN/ETL=0.927.

[0127] The optical image capturing system of the first embodiment satisfies: ETP1=2.470 mm; ETP2=5.144 mm; ETP3=0.898 mm; ETP4=1.706 mm; ETP5=3.901 mm; ETP6=0.528 mm; ETP7=1.077 mm. The sum of the aforementioned ETP1 to ETP7 is SETP, wherein SETP=15.723 mm. In addition, TP1=2.276 mm; TP2=5.240 mm; TP3=0.837 mm; TP4=2.002 mm; TP5=4.271 mm; TP6=0.300 mm; TP7=1.118 mm. The sum of the aforementioned TP1 to TP7 is STP, wherein STP=16.044 mm. In addition, SETP/STP=0.980, and SETP/EIN=0.629.

[0128] In order to enhance the ability of correcting aberration and to lower the difficulty of manufacturing at the same time, the ratio between the thickness (ETP) at the height of a half of the entrance pupil diameter (HEP) and the thickness (TP) of any lens on the optical axis (i.e., ETP/TP) in the optical image capturing system of the first embodiment is particularly controlled, which satisfies: ETP1/TP1=1.085; ETP2/TP2=0.982; ETP3/TP3=1.073; ETP4/TP4=0.852; ETP5/TP5=0.914; ETP6/TP6=1.759; ETP7/TP7=0.963.

[0129] In order to enhance the ability of correcting aberration, lower the difficulty of manufacturing, and “slightly shortening” the length of the optical image capturing system at the same time, the ratio between the horizontal distance (ED) between two neighboring lenses at the height of a half of the entrance pupil diameter (HEP) and the parallel distance (IN) between these two neighboring lens on the optical axis (i.e., ED/IN) in the optical image capturing system of the first embodiment is particularly controlled, which satisfies: the horizontal distance between the first lens 110 and the second lens 120 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED12, wherein ED12=4.474 mm; the horizontal distance between the second lens 120 and the third lens 130 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED23, wherein ED23=0.349 mm; the horizontal distance between the third lens 130 and the fourth lens 140 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED34, wherein ED34=1.660 mm; the horizontal distance between the fourth lens 140 and the fifth lens 150 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED45, wherein ED45=1.794 mm; the horizontal distance between the fifth lens 150 and the sixth lens 160 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED56, wherein ED56=0.714 mm; the horizontal distance between the sixth lens 160 and the seventh lens 170 at the height of a half of the entrance pupil diameter (HEP) is denoted by ED67, wherein ED67=0.284 mm. The sum of the aforementioned ED12 to ED67 is SED, wherein SED=9.276 mm.

[0130] The horizontal distance between the first lens 110 and the second lens 120 on the optical axis is denoted by IN12, wherein IN12=4.552 mm, and ED12/IN12=0.983. The horizontal distance between the second lens 120 and the third lens 130 on the optical axis is denoted by IN23, wherein IN23=0.162 mm, and ED23/IN23=2.153. The horizontal distance between the third lens 130 and the fourth lens 140 on the optical axis is denoted by IN34, wherein IN34=1.927 mm, and ED34/IN34=0.862. The horizontal distance between the fourth lens 140 and the fifth lens 150 on the optical axis is denoted by IN45, wherein IN45=1.515 mm, and ED45/IN45=1.184. The horizontal distance between the fifth lens 150 and the sixth lens 160 on the optical axis is denoted by IN56, wherein IN56=0.050 mm, and ED56/IN56=14.285. The horizontal distance between the sixth lens 160 and the seventh lens 170 on the optical axis is denoted by IN67, wherein IN67=0.211 mm, and ED67/IN67=1.345. The sum of the aforementioned IN12 to IN67 is denoted by SIN, wherein SIN=8.418, and SED/SIN=1.102.

[0131] The optical image capturing system of the first embodiment satisfies: ED12/ED23=12.816; ED23/ED34=0.210; ED34/ED45=0.925; ED45/ED56=2.512; ED56/ED67=2.512; IN12/IN23=28.080; IN23/IN34=0.084; IN34/IN45=1.272; IN45/IN56=30.305; IN56/IN67=0.236.

[0132] The horizontal distance in parallel with the optical axis between a coordinate point at the height of ½ HEP on the image-side surface of the seventh lens 170 and image surface is denoted by EBL, wherein EBL=1.982 mm. The horizontal distance in parallel with the optical axis between the point on the image-side surface of the seventh lens 170 where the optical axis passes through and the image plane is denoted by BL, wherein BL=2.517 mm. The optical image capturing system of the first embodiment satisfies: EBL/BL=0.7874. The horizontal distance in parallel with the optical axis between the coordinate point at the height of ½ HEP on the image-side surface of the seventh lens 170 and the infrared rays filter 180 is denoted by EIR, wherein EIR=0.865 mm. The horizontal distance in parallel with the optical axis between the point on the image-side surface of the seventh lens 170 where the optical axis passes through and the infrared rays filter 180 is denoted by PIR, wherein PIR=1.400 mm, and it satisfies: EIR/PIR=0.618.

[0133] The description below and the features related to inflection points are obtained based on main reference wavelength of 555 nm.

[0134] The infrared rays filter 180 is made of glass and 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.

[0135] 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 degrees; 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.

[0136] 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.

[0137] 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 f2 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, f6 is a focal length of the sixth lens 160, and f7 is a focal length of the seventh lens 170.

[0138] 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/f3|=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.

[0139] 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.

[0140] The optical image capturing system 10 of the first embodiment further satisfies ETP=16.0446 mm; and ETP/InTL=0.6559, where ETP is a sum of the thicknesses of the lenses 110-150 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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 the other negative lens, which avoid the significant aberration caused by the incident rays.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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; IN45 is a distance on the optical axis between the fourth lens 140 and the fifth lens 150; 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. It may control the sensitivity of manufacture of the system and lower the total height of the system.

[0149] The optical image capturing system 10 of the first embodiment further satisfies InRS61=−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.

[0150] 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 is 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 is 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.

[0151] 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.

[0152] 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 is 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 is 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.

[0153] 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.

[0154] 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.

[0155] 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; NA3 is an Abbe number of the third lens 130; and NA7 is an Abbe number of the seventh lens 170. It may correct the aberration of the optical image capturing system.

[0156] 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.

[0157] For the optical image capturing system of the first embodiment, the values of MTF in the spatial frequency of 55 cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of view of visible light on an image plane are respectively denoted by MTFE0, MTFE3, and MTFE7, wherein MTFE0 is around 0.35, MTFE3 is around 0.14, and MTEF7 is around 0.28; the values of MTF in the spatial frequency of 110 cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of view of visible light on an image plane are respectively denoted by MTFQ0, MTFQ3, and MTFQ7, wherein MTFQ0 is around 0.126, MTFQ3 is around 0.075, and MTFQ7 is around 0.177; the values of modulation transfer function (MTF) in the spatial frequency of 220 cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of view on an image plane are respectively denoted by MTFH0, MTFH3, and MTFH7, wherein MTFH0 is around 0.01, MTFH3 is around 0.01, and MTFH7 is around 0.01.

[0158] For the optical image capturing system of the first embodiment, when the infrared of wavelength of 850 nm focuses on the image plane, the values of MTF in spatial frequency (55 cycles/mm) at the optical axis, 0.3 HOI, and 0.7 HOI on an image plane are respectively denoted by MTFI0, MTFI3, and MTFI7, wherein MTFI0 is around 0.01, MTFI3 is around 0.01, and MTFI7 is around 0.01.

[0159] The parameters of the lenses of the first embodiment are listed in Table 1 and Table 2.

TABLE-US-00001 TABLE 1 f = 4.3019 mm; f/HEP = 1.2; HAF = 59.9968 deg Radius of curvature Thickness Refractive Abbe Focal length Surface (mm) (mm) Material index number (mm) 0 Object plane infinity 1 1.sup.st lens −1079.499964 2.276 plastic 1.565 58.00 −14.53 2 8.304149657 4.552 3 2.sup.nd lens 14.39130913 5.240 plastic 1.650 21.40 24.25 4 130.0869482 0.162 5 3.sup.rd lens 8.167310118 0.837 plastic 1.650 21.40 −97.07 6 6.944477468 1.450 7 Aperture plane 0.477 8 4.sup.th lens 121.5965254 2.002 plastic 1.565 58.00 9.75 9 −5.755749302 1.515 10 5.sup.th lens −86.27705938 4.271 plastic 1.565 58.00 7.16 11 −3.942936258 0.050 12 6.sup.th lens 4.867364751 0.300 plastic 1.650 21.40 −6.52 13 2.220604983 0.211 14 7.sup.th lens 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 plane 0 Reference wavelength (d-line): 555 mm.

TABLE-US-00002 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 −4.509781E+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−05 1.884580E−05 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

[0160] 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

[0161] 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 seventh lens 270, an infrared rays filter 280, an image plane 290, and an image sensor 292. FIG. 2C shows a modulation transformation of the optical image capturing system 20 of the second embodiment of the present application in visible spectrum.

[0162] The first lens 210 has positive refractive power and is made of plastic. An object-side surface 212 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 214 thereof, which faces the image side, is a convex aspheric surface. The image-side surface 214 has an inflection point.

[0163] The second lens 220 has negative refractive power and is made of plastic. An object-side surface 222 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 224 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 222 has an inflection point, and the image-side surface 224 has two inflection points.

[0164] The third lens 230 has positive refractive power and is made of plastic. An object-side surface 232, which faces the object side, is a convex aspheric surface, and an image-side surface 234, which faces the image side, is a concave aspheric surface. The object-side surface 232 has an inflection point.

[0165] The fourth lens 240 has negative refractive power and is made of plastic. An object-side surface 242, which faces the object side, is a convex aspheric surface, and an image-side surface 244, which faces the image side, is a concave aspheric surface. The object-side surface 242 has an inflection point.

[0166] The fifth lens 250 has positive refractive power and is made of plastic. An object-side surface 252, which faces the object side, is a convex aspheric surface, and an image-side surface 254, which faces the image side, is a convex aspheric surface. The object-side surface 252 has two inflection points, and the image-side surface 254 has an inflection point.

[0167] The sixth lens 260 has positive refractive power and is made of plastic. An object-side surface 262, which faces the object side, is a convex aspheric surface, and an image-side surface 264, which faces the image side, is a convex aspheric surface. The image-side surface 264 has two inflection points. Whereby, the incident angle of each view field entering the sixth lens 260 can be effectively adjusted to improve aberration.

[0168] The seventh lens 270 has negative refractive power and is made of plastic. An object-side surface 272, which faces the object side, is a concave surface, and an image-side surface 274, which faces the image side, is a convex surface. It may help to shorten the back focal length to keep small in size. In addition, the image-side surface 274 has three inflection points, 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.

[0169] The infrared rays filter 280 is made of glass and 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.

[0170] The parameters of the lenses of the second embodiment are listed in Table 3 and Table 4.

TABLE-US-00003 TABLE 3 f = 35.9473 mm; f/HEP = 2.4; HAF = 6.2233 deg Focal Thickness Refractive Abbe length Surface Radius of curvature (mm) (mm) Material index number (mm)  0 Object 1E+18 1E+18  1 1.sup.st lens 14.6159079 7.752 plastic 1.544 55.96 22.293  2 −59.0140599 0.626  3 2.sup.nd lens −132.236055 1.500 plastic 1.635 23.96 −30.534  4 23.01782325 2.061  5 Aperture 1E+18 −0.849  6 3.sup.rd lens 13.43477595 2.345 plastic 1.544 55.96 119.003  7 15.89464857 6.879  8 4.sup.th lens 101.6641378 2.856 plastic 1.544 55.96 −99.129  9 34.96056908 2.355 10 5.sup.th lens 124.2144236 0.979 plastic 1.635 23.96 109.219 11 −159.1760879 6.483 12 6.sup.th lens 30.06457162 2.727 plastic 1.635 23.96 27.571 13 −41.1530181 1.112 14 7.sup.th lens −12.08912518 1.022 plastic 1.661 20.36 −18.637 15 −466.5593131 0.051 16 Infrared 1E+18 0.300 BK_7 1.517 64.17 rays filter 17 1E+18 1.800 18 Image 1E+18 0.000 plane Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the second surface is 6.611 mm; the clear aperture of the eighth surface is 4.000 mm; the clear aperture of the twelfth surface is 3.800 mm.

TABLE-US-00004 TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k   8.895134E−02   3.081834E+01   2.456512E+02 −1.713797E+00 −7.601429E+00 −1.008691E+00   4.390903E+02 A4 −1.809506E−05 −1.217802E−04 −9.475490E−05 −2.466739E−04 −2.720897E−04 −3.375681E−04 −3.751101E−05 A6 −8.798145E−07 −3.449278E−05 −4.702290E−05   1.053124E−05   5.226481E−05   4.709090E−05   8.922820E−05 A8   2.689089E−08   4.009154E−06   5.267259E−06 −1.811537E−06 −5.059812E−06 −2.303591E−06 −7.944176E−06 A10 −2.372734E−10 −1.913027E−07 −2.433232E−07   1.617333E−07   2.538018E−07 −3.709292E−08   8.560349E−08 A12 −1.107104E−11   4.661685E−09   5.717380E−09 −6.383177E−09 −6.551490E−09   7.387205E−09   1.777977E−08 A14   2.228603E−13 −5.771966E−11 −6.848178E−11   1.116321E−10   6.864396E−11 −2.651393E−10 −9.114866E−10 A16 −1.007034E−15   2.929955E−13   3.430828E−13 −6.948886E−13   0.000000E+00   3.433839E−12   1.359254E−11 A18   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 Surface 9 10 11 12 13 14 15 k   4.846186E+01   7.399984E+02   7.486971E+02   3.806695E+01 −5.785595E+01   4.668471E+00 −2.500000E+03 A4 −5.442229E−04 −1.164182E−03 −3.962517E−04   1.312916E−03   1.489550E−03   3.005650E−03   3.874167E−03 A6   1.854854E−04   3.323586E−04   2.521682E−04   6.205182E−05   2.124973E−05 −1.110533E−03 −1.283504E−03 A8 −1.682398E−05 −5.055568E−05 −4.416845E−05 −1.926977E−05 −1.105154E−05   2.116296E−04   2.269596E−04 A10 −6.617144E−08   3.782321E−06   3.925381E−06   1.933355E−06 −6.045773E−07 −2.575720E−05 −2.419111E−05 A12   8.615509E−08 −1.681216E−07 −2.283469E−07 −1.103121E−07   1.208799E−07   1.735457E−06   1.509518E−06 A14 −4.719930E−09   8.367862E−09   1.278818E−08   3.587298E−09 −5.891420E−09 −5.863833E−08 −5.025789E−08 A16   8.035198E−11 −4.122174E−10 −5.603858E−10 −5.474600E−11   9.891621E−11   7.827346E−10   6.996508E−10 A18   0.000000E+00   8.390643E−12   1.047003E−11   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00

[0171] 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.

[0172] The exact parameters of the second embodiment based on Table 3 and

[0173] Table 4 are listed in the following table:

TABLE-US-00005 Second embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3 MTFQ7 0.88  0.88  0.88  0.73 0.73  0.7  ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 6.368 2.218 2.426  7.562 3.478  5.942 ETP7 ETL EBL EIN EIR PIR 10.586  38.990  −15.771  54.762 −17.871    0.051 EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 1.404 0.705 −348.086    38.580 19.182  2.011 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.821 1.478 1.035  2.648 3.552  2.179 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 10.354  2.151  7.3319 16.181 18.667  0.867 ED12 ED23 ED34 ED45 ED56 ED67 0.775 1.569 2.559 10.415 −7.491  8.354 ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.237 1.295 0.372  4.423 −1.155  7.513 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.6125  1.1773  0.3021  0.3626 0.3291  1.3038 |f/f7| TP1/TP2 TP6/TP7 IN34/IN45 IN12/f IN67/f  1.9288  5.1677  2.6674  2.9215 0.0174  0.0309 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7301  0.2566 5.5851 0.7826 HOS InTL HOS/HOI InS/HOS ODT % TDT % 40.0000 37.8487 10.0000  0.7015 1.9995  0.7577 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0    0    0    0   0    00    HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS 0    0    0    0   0     0.0096 TP1 TP2 TP3 TP4 TP5 TP6 7.752 1.500 2.345  2.856 0.979  2.727 TP7 IN12 IN23 IN34 IN45 IN56  1.0225  0.6261  1.2123  6.8788 2.3546  6.4835

[0174] The results of the equations of the second embodiment based on Table 3 and Table 4 are listed in the following table:

TABLE-US-00006 Values related to the inflection points of the second embodiment (Reference wavelength: 555 nm) HIF121 6.1121 HIF121/HOI 1.5280 SGI121 −0.5069 |SGI121|/(|SGI121| + TP1) 0.0614 HIF211 5.8313 HIF211/HOI 1.4578 SGI211 −0.2758 |SGI211|/(|SGI211| + TP2) 0.1553 HIF221 4.7481 HIF221/HOI 1.1870 SGI221   0.4013 |SGI221|/(|SGI221| + TP2) 0.2111 HIF222 5.5910 HIF222/HOI 1.3978 SGI222   0.5170 |SGI222|/(|SGI222| + TP2) 0.2563 HIF411 3.5628 HIF411/HOI 0.8907 SGI411   0.1080 |SGI411|/(|SGI411| + TP4) 0.0364 HIF511 2.1542 HIF511/HOI 0.5385 SGI511   0.0113 |SGI511|/(|SGI511| + TP5) 0.0114 HIF512 2.9134 HIF512/HOI 0.7284 SGI512   0.0167 |SGI512|/(|SGI512| + TP5) 0.0168 HIF521 1.4970 HIF521/HOI 0.3742 SGI521 −0.0072 |SGI521|/(|SGI521| + TP5) 0.0073 HIF621 1.1385 HIF621/HOI 0.2846 SGI621 −0.0131 |SGI621|/(|SGI621| + TP6) 0.0048 HIF622 2.3474 HIF622/HOI 0.5869 SGI622 −0.0260 |SGI622|/(|SGI622| + TP6) 0.0095 HIF721 0.2190 HIF721/HOI 0.0547 SGI721 −0.00004 |SGI721|/(|SGI721| + TP7) 0.00004 HIF722 1.7257 HIF722/HOI 0.4314 SGI722   0.0104 |SGI722|/(|SGI722| + TP7) 0.0101 HIF723 3.1155 HIF723/HOI 0.7789 SGI723   0.0210 |SGI723|/(|SGI723| + TP7) 0.0201

Third Embodiment

[0175] 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 shows a modulation transformation of the optical image capturing system 30 of the third embodiment of the present application in visible spectrum.

[0176] The first lens 310 has positive refractive power and is made of plastic. An object-side surface 312 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 314 thereof, which faces the image side, is a convex aspheric surface. The image-side surface 314 has an inflection point.

[0177] The second lens 320 has negative refractive power and is made of plastic. An object-side surface 322 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 324 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 322 has an inflection point, and the image-side surface 324 has two inflection points.

[0178] The third lens 330 has positive refractive power and is made of plastic. An object-side surface 332 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 334 thereof, which faces the image side, is a concave aspheric surface.

[0179] The fourth lens 340 has negative refractive power and is made of plastic. An object-side surface 342, which faces the object side, is a convex aspheric surface, and an image-side surface 344, which faces the image side, is a concave aspheric surface.

[0180] The fifth lens 350 has positive refractive power and is made of plastic. An object-side surface 352, which faces the object side, is a concave aspheric surface, and an image-side surface 354, which faces the image side, is a convex aspheric surface.

[0181] The sixth lens 360 has positive refractive power and is made of plastic. An object-side surface 362, which faces the object side, is a convex aspheric surface, and an image-side surface 364, which faces the image side, is a concave aspheric surface. The image-side surface 364 has two inflection points. Whereby, the incident angle of each view field entering the sixth lens 360 can be effectively adjusted to improve aberration.

[0182] The seventh lens 370 has negative refractive power and is made of plastic. An object-side surface 372, which faces the object side, is a concave aspheric surface, and an image-side surface 374, which faces the image side, is a convex aspheric surface. It may help to shorten the back focal length to keep small in size. The object-side surface 372 has three inflection points, and the image-side surface 374 has three inflection points, which could effectively suppress the incidence angle of light in the off-axis view field, and correct the off-axis view field aberration.

[0183] The infrared rays filter 380 is made of glass and 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.

[0184] The parameters of the lenses of the third embodiment are listed in Table 5 and Table 6.

TABLE-US-00007 TABLE 5 f = 35.7188 mm; f/HEP = 2.4; HAF = 6.2200 deg Focal Thickness Refractive Abbe length Surface Radius of curvature (mm) (mm) Material index number (mm)  0 Object 1E+18 1E+18  1 1.sup.st lens 14.11720984 8.000 plastic 1.544 55.96 22.617  2 −78.5967986 0.347  3 2.sup.nd lens −174.3066327 1.813 plastic 1.635 23.96 −30.470  4 22.03350417 1.702  5 Aperture 1E+18 −0.849  6 3.sup.rd lens 12.82400791 2.427 plastic 1.544 55.96 101.450  7 15.57402236 6.707  8 4.sup.th lens 39.15865819 1.814 plastic 1.544 55.96 −120.873  9 24.17071636 3.805 10 5.sup.th lens −73.83616906 2.591 plastic 1.635 23.96 177.236 11 −45.32676551 5.141 12 6.sup.th lens 19.33035456 2.370 plastic 1.635 23.96 64.621 13 34.57414711 0.907 14 7.sup.th lens −36.27292614 1.023 plastic 1.661 20.36 −59.066 15 −466.5593131 0.100 16 Infrared 1E+18 0.300 BK_7 1.517 64.17 rays filter 17 1E+18 1.800 18 Image 1E+18 0.000 plane Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the second surface is 6.611 mm; the clear aperture of the eighth surface is 4.000 mm; the clear aperture of the twelfth surface is 3.800 mm.

TABLE-US-00008 TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k −7.451641E−18   3.377707E−16 −6.030000E−30 −1.959274E+00 −7.238568E+00 −4.669745E−01   8.570000E−29 A4 −1.119316E−05 −1.452375E−04 −6.082029E−05 −2.984802E−04 −3.323631E−04 −3.009734E−04 −6.288710E−05 A6   2.028971E−07 −3.057865E−05 −5.087227E−05   6.039452E−06   6.350651E−05   6.180457E−05   1.090062E−04 A8 −1.549266E−08   3.799775E−06   5.480919E−06 −9.947611E−07 −5.792259E−06 −4.619694E−06 −1.513513E−05 A10   6.011249E−10 −1.869306E−07 −2.481369E−07   1.311542E−07   2.759265E−07   7.183547E−08   7.188022E−07 A12 −1.672284E−11   4.628376E−09   5.745458E−09 −6.029201E−09 −6.793690E−09   5.748986E−09   1.700767E−09 A14   2.228603E−13 −5.771966E−11 −6.848178E−11   1.116321E−10   6.864396E−11 −2.651393E−10 −9.114866E−10 A16 −1.007034E−15   2.929955E−13   3.430828E−13 −6.948886E−13   0.000000E+00   3.433839E−12   1.359254E−11 A18   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 Surface 9 10 11 12 13 14 15 k −4.043925E−02 −2.113485E−12 −3.252534E−25 −1.325270E−12 −5.848309E+01 −8.074261E−11 −9.000000E+01 A4 −2.038188E−04 −3.963819E−04   4.143431E−05   6.064067E−04   4.005819E−04   8.181456E−03   1.352494E−02 A6   1.382253E−04   1.176983E−04   9.859890E−05   2.655320E−04   2.548852E−04 −2.450047E−03 −3.326356E−03 A8 −1.988194E−05 −2.777445E−05 −2.584442E−05 −4.084766E−05 −3.434651E−05   3.060672E−04   3.954883E−04 A10   6.330161E−07   2.661756E−06   2.800935E−06   2.957223E−06 −1.781725E−07 −2.774042E−05 −3.026509E−05 A12   6.278191E−08 −1.472358E−07 −2.018314E−07 −1.242667E−07   1.611674E−07   1.731485E−06   1.583215E−06 A14 −4.719930E−09   8.367862E−09   1.278818E−08   3.587298E−09 −5.891420E−09 −5.863833E−08 −5.025789E−08 A16   8.035198E−11 −4.122174E−10 −5.603857E−10 −5.474600E−11   9.891621E−11   7.827346E−10   6.996508E−10 A18   0.000000E+00   8.390643E−12   1.047003E−11   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00

[0185] 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.

[0186] The exact parameters of the third embodiment based on Table 5 and Table 6 are listed in the following table:

TABLE-US-00009 Third embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3 MTFQ7 0.87  0.86  0.87  0.73  0.7   0.72  ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 6.674 2.505 2.487 1.484  5.788  21.735  ETP7 ETL EBL EIN EIR PIR 9.240 38.962  −8.804  47.766  −10.903    0.100  EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 1.226 1.045 −109.035    49.913  20.040  2.491  ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.834 1.382 1.025 0.818  2.234  9.169  ETP7/TP7 BL EBL/BL SED SIN SED/SIN 9.028 2.201 4    −2.147  17.760  −0.121  ED12 ED23 ED34 ED45 ED56 ED67 0.459 1.221 5.051 12.204  −4.978  −16.103    ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.325 1.431 0.753 3.207  −0.968  −17.747    |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.5793  1.1722  0.3521 0.2955 0.2015 0.5527 |f/f7| TP1/TP2 TP6/TP7 IN34/IN45 IN12/f IN67/f  0.6047  4.4122  2.3162 1.7624 0.0097 0.0254 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7423  0.3003 4.6033 0.8145 HOS InTL HOS/HOI InS/HOS ODT % TDT % 40.0006 37.8001 10.0002 0.7035 2.7579 0.0629 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0    0    0    0    0    0    HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS 0    0    0    0.2006 0.0502 0.0050 TP1 TP2 TP3 TP4 TP5 TP6  8.0000  1.8132  2.4275 1.8140 2.5914 2.3704 TP7 1N12 IN23 IN34 IN45 IN56  1.0234  0.3465  0.8532 6.7067 3.8053 5.1411

[0187] The results of the equations of the third embodiment based on Table 5 and

[0188] Table 6 are listed in the following table:

TABLE-US-00010 Values related to the inflection points of the third embodiment (Reference wavelength: 555 nm) HIF121 6.0651 HIF121/HOI 1.5163 SGI121 −0.3969 |SGI121|/(|SGI121| + TP1) 0.0473 HIF211 6.0855 HIF211/HOI 1.5214 SGI211 −0.2560 |SGI211|/(|SGI211| + TP2) 0.1237 HIF221 4.7841 HIF221/HOI 1.1960 SGI221   0.4287 |SGI221|/(|SGI221| + TP2) 0.1912 HIF222 5.5544 HIF222/HOI 1.3886 SGI222   0.5480 |SGI222|/(|SGI222| + TP2) 0.2321 HIF621 2.5129 HIF621/HOI 0.6282 SGI621   0.1171 |SGI621|/(|SGI621| + TP6) 0.0471 HIF622 3.0914 HIF622/HOI 0.7729 SGI622   0.1703 |SGI622|/(|SGI622| + TP6) 0.0670 HIF711 0.6164 HIF711/HOI 0.1541 SGI711 −0.0042 |SGI711|/(|SGI711| + TP7) 0.0041 HIF712 1.2373 HIF712/HOI 0.3093 SGI712 −0.0093 |SGI712|/(|SGI712| + TP7) 0.0090 HIF713 3.3337 HIF713/HOI 0.8334 SGI713 −0.3234 |SGI713|/(|SGI713| + TP7) 0.2401 HIF721 0.1155 HIF721/HOI 0.0289 SGI721 −0.00001 |SGI721|/(|SGI721| + TP7) 0.00001 HIF722 1.7721 HIF722/HOI 0.4430 SGI722   0.0576 |SGI722|/(|SGI722| + TP7) 0.0533 HIF723 3.2192 HIF723/HOI 0.8048 SGI723   0.0923 |SGI723|/(|SGI723| + TP7) 0.0828

Fourth Embodiment

[0189] 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 shows a modulation transformation of the optical image capturing system 40 of the fourth embodiment of the present application in visible spectrum.

[0190] The first lens 410 has positive refractive power and is made of plastic. An object-side surface 412 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 414 thereof, which faces the image side, is a convex aspheric surface. The image-side surface 414 has an inflection point.

[0191] The second lens 420 has negative refractive power and is made of plastic. An object-side surface 422 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 424 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 422 has an inflection point, and the image-side surface 424 has two inflection points.

[0192] The third lens 430 has positive refractive power and is made of plastic. An object-side surface 432 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 434 thereof, which faces the image side, is a concave aspheric surface.

[0193] The fourth lens 440 has negative refractive power and is made of plastic. An object-side surface 442, which faces the object side, is a convex aspheric surface, and an image-side surface 444, which faces the image side, is a concave aspheric surface.

[0194] The fifth lens 450 has positive refractive power and is made of plastic. An object-side surface 452, which faces the object side, is a concave aspheric surface, and an image-side surface 454, which faces the image side, is a convex aspheric surface.

[0195] The sixth lens 460 has positive refractive power and is made of plastic. An object-side surface 462, which faces the object side, is a convex aspheric surface, and an image-side surface 464, which faces the image side, is a concave aspheric surface. The image-side surface 464 has two inflection points. Whereby, the incident angle of each view field entering the sixth lens 460 can be effectively adjusted to improve aberration.

[0196] The seventh lens 470 has positive refractive power and is made of plastic. An object-side surface 472, which faces the object side, is a concave aspheric surface, and an image-side surface 474, which faces the image side, is a convex aspheric surface. The object-side surface 472 has two inflection points, and the image-side surface 474 has four inflection points. 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.

[0197] The infrared rays filter 480 is made of glass and 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.

[0198] The parameters of the lenses of the fourth embodiment are listed in Table 7 and Table 8.

TABLE-US-00011 TABLE 7 f = 35.7193 mm; f/HEP = 2.4; HAF = 6.2199 deg Focal Thickness Refractive Abbe length Surface Radius of curvature (mm) (mm) Material index number (mm)  0 Object 1E+18 1E+18  1 1.sup.st lens 14.11694878 8.000 plastic 1.544 55.96 22.754  2 −82.56499512 0.409  3 2.sup.nd lens −164.0882457 1.686 plastic 1.635 23.96 −31.255  4 22.85734466 1.712  5 Aperture 1E+18 −0.849  6 3.sup.rd lens 12.97865172 2.476 plastic 1.544 55.96 99.816  7 15.89006923 6.848  8 4.sup.th lens 38.16487466 1.603 plastic  9 26.50233026 3.492 1.544 55.96 −167.011 10 5.sup.th lens −33.54198852 2.488 plastic 11 −30.41083043 5.715 1.635 23.96 388.788 12 6.sup.th lens 25.64675106 2.699 plastic 13 30.4704834 1.082 1.635 23.96 207.893 14 7.sup.th lens −538.4876628 1.369 plastic 15 −466.5593131 0.170 1.661 20.36 5200.960 16 Infrared 1E+18 0.300 BK_7 rays filter 17 1E+18 0.800 1.517 64.17 18 Image 1E+18 0.000 plane Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the second surface is 6.611 mm; the clear aperture of the eighth surface is 4.000 mm; the clear aperture of the twelfth surface is 3.800 mm.

TABLE-US-00012 TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k   1.860903E−18   1.549694E−16 −1.748000E−29 −1.993597E+00 −7.181148E+00 −6.953794E−01 −1.477000E−28 A4 −1.509333E−05 −1.494332E−04 −6.176678E−05 −2.871929E−04 −3.033961E−04 −2.728064E−04 −2.226267E−04 A6   1.114781E−07 −3.083587E−05 −5.022222E−05   6.656269E−06   5.626268E−05   5.014256E−05   1.463399E−04 A8 −9.599558E−09   3.828199E−06   5.426173E−06 −1.144925E−06 −5.197354E−06 −3.373710E−06 −1.720961E−05 A10   5.113828E−10 −1.876818E−07 −2.468546E−07   1.372470E−07   2.567132E−07   1.908446E−08   6.786283E−07 A12 −1.635966E−11   4.635106E−09   5.738508E−09 −6.103148E−09 −6.587718E−09   6.509128E−09   5.271129E−09 A14   2.228603E−13 −5.771966E−11 −6.848178E−11   1.116321E−10   6.864396E−11 −2.651393E−10 −9.114866E−10 A16 −1.007034E−15   2.929955E−13   3.430828E−13 −6.948886E−13   0.000000E+00   3.433839E−12   1.359254E−11 A18   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 Surface 9 10 11 12 13 14 15 k −3.581024E−01 −9.153106E−12 −3.139887E−13 −3.538601E+01 −5.848309E+01 −2.981653E−11 −9.000000E+01 A4 −4.156041E−04 −5.514939E−04 −7.743132E−05   9.587699E−04   2.447736E−04   2.765030E−03   1.088456E−02 A6   1.985371E−04   1.538627E−04   1.082866E−04   1.633217E−04   3.414851E−04 −1.046074E−03 −2.566748E−03 A8 −2.285800E−05 −2.801029E−05 −2.293335E−05 −3.106269E−05 −5.558243E−05   1.529969E−04   2.991121E−04 A10   4.529309E−07   2.289984E−06   2.368289E−06   2.491693E−06   1.942248E−06 −1.936351E−05 −2.437824E−05 A12   7.368724E−08 −1.302177E−07 −1.868590E−07 −1.157425E−07   8.696429E−08   1.537978E−06   1.444062E−06 A14 −4.719930E−09   8.367862E−09   1.278818E−08   3.587298E−09 −5.891420E−09 −5.863833E−08 −5.025789E−08 A16   8.035198E−11 −4.122174E−10 −5.603857E−10 −5.474600E−11   9.891621E−11   7.827346E−10   6.996508E−10 A18   0.000000E+00   8.390643E−12   1.047003E−11   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00

[0199] 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.

[0200] The exact parameters of the fourth embodiment based on Table 7 and Table 8 are listed in the following table:

TABLE-US-00013 Fourth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3 MTFQ7 0.87  0.87  0.87  0.72  0.7   0.72  ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 6.677 2.364 2.513 2.452  5.144  10.647  ETP7 ETL EBL EIN EIR PIR 16.819  38.960  1.947 37.013  0.847  0.170  EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.950 1.259 4.987 46.616  20.321  2.294  ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.835 1.402 1.015 1.530  2.068  3.945  ETP7/TP7 BL EBL/BL SED SIN SED/SIN 12.284  1.270  1.5331 −9.603  18.409  −0.522  ED12 ED23 ED34 ED45 ED56 ED67 0.508 1.247 5.725 13.257  −7.115  −23.225    ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.242 1.445 0.836 3.796  −1.245  −21.460    |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.5698  1.1429  0.3579 0.2139 0.0919 0.1718 |f/f7| TP1/TP2 TP6/TP7 IN34/IN45 IN12/f IN67/f  0.0069  4.7442  1.9710 1.9608 0.0115 0.0303 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7280  0.3131 4.9869 0.9084 HOS InTL HOS/HOI InS/HOS ODT % TDT % 40.0006 38.7303 10.0002 0.7048 2.8864 0.5634 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0    0    0    0    0    0    HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS 0    0    0    0.2239 0.0560 0.0056 TP1 TP2 TP3 TP4 TP5 TP6  8.0000  1.6863  2.4761 1.6029 2.4876 2.6987 TP7 IN12 IN23 IN34 IN45 IN56  1.3692  0.4093  0.8628 6.8480 3.4924 5.7147

[0201] The results of the equations of the fourth embodiment based on Table 7 and Table 8 are listed in the following table:

TABLE-US-00014 Values related to the inflection points of the fourth embodiment (Reference wavelength: 555nm) HIF121 6.0415 HIF121/HOI 1.5104 SGI121 −0.3824 |SGI121|/(|SGI121| + TP1) 0.0456 HIF211 6.0010 HIF211/HOI 1.5003 SGI211 −0.2527 |SGI211|/(|SGI211| + TP2) 0.1303 HIF221 4.7812 HIF221/HOI 1.1953 SGI221   0.4097 |SGI221|/(|SGI221| + TP2) 0.1955 HIF222 5.5628 HIF222/HOI 1.3907 SGI222   0.5240 |SGI222|/(|SGI222| + TP2) 0.2371 HIF621 2.4990 HIF621/HOI 0.6248 SGI621   0.1240 |SGI621|/(|SGI621| + TP6) 0.0439 HIF622 3.1153 HIF622/HOI 0.7788 SGI622   0.1826 |SGI622|/(|SGI622| + TP6) 0.0634 HIF711 0.2434 HIF711/HOI 0.0609 SGI711 −0.00005 |SGI711|/(|SGI711| + TP7) 0.00003 HIF712 1.2020 HIF712/HOI 0.3005 SGI712   0.0018 |SGI712|/(|SGI712| + TP7) 0.0013 HIF721 0.1286 HIF721/HOI 0.0322 SGI721 −0.00002 |SGI721|/(|SGI721| + TP7) 0.00001 HIF722 1.7933 HIF722/HOI 0.4483 SGI722   0.0488 |SGI722|/(|SGI722| + TP7) 0.0344 HIF723 3.1417 HIF723/HOI 0.7854 SGI723   0.0764 |SGI723|/(|SGI723| + TP7) 0.0529 HIF724 3.5837 HIF724/HOI 0.8959 SGI724   0.0656 |SGI724|/(|SGI724| + TP7) 0.0457

Fifth Embodiment

[0202] 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 shows a modulation transformation of the optical image capturing system 50 of the fifth embodiment of the present application in visible spectrum, and FIG. 5D shows a modulation transformation of the optical image capturing system 50 of the fifth embodiment of the present application in infrared spectrum.

[0203] The first lens 510 has positive refractive power and is made of plastic. An object-side surface 512, which faces the object side, is a convex aspheric surface, and an image-side surface 514, which faces the image side, is a convex aspheric surface. The image-side surface 514 has an inflection point.

[0204] The second lens 520 has negative refractive power and is made of plastic. An object-side surface 522 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 524 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 522 has an inflection point, and the image-side surface 524 has two inflection points.

[0205] The third lens 530 has negative refractive power and is made of plastic. An object-side surface 532, which faces the object side, is a convex aspheric surface, and an image-side surface 534, which faces the image side, is a concave aspheric surface.

[0206] The fourth lens 540 has positive refractive power and is made of plastic. An object-side surface 542, which faces the object side, is a convex aspheric surface, and an image-side surface 544, which faces the image side, is a concave aspheric surface. The object-side surface 542 has an inflection point, and the image-side surface 544 has an inflection point.

[0207] The fifth lens 550 has positive refractive power and is made of plastic. An object-side surface 552, which faces the object side, is a concave aspheric surface, and an image-side surface 554, which faces the image side, is a convex aspheric surface.

[0208] The sixth lens 560 has negative refractive power and is made of plastic. An object-side surface 562, which faces the object side, is a convex aspheric surface, and an image-side surface 564, which faces the image side, is a concave aspheric surface. The image-side surface 564 has two inflection points. Whereby, the incident angle of each view field entering the sixth lens 560 can be effectively adjusted to improve aberration.

[0209] The seventh lens 570 has negative refractive power and is made of plastic. An object-side surface 572, which faces the object side, is a convex surface, and an image-side surface 574, which faces the image side, is a convex surface. The object-side surface 572 has an inflection point, and the image-side surface 574 has two inflection points. 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.

[0210] 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.

[0211] The parameters of the lenses of the fifth embodiment are listed in Table 9 and Table 10.

TABLE-US-00015 TABLE 9 f = 35.7191 mm; f/HEP = 2.4; HAF = 6.2200 deg Focal Thickness Refractive Abbe length Surface Radius of curvature (mm) (mm) Material index number (mm)  0 Object 1E+18 1E+18  1 1.sup.st lens 14.00400149 8.000 plastic 1.544 55.96 22.483  2 −79.13139679 0.371  3 2.sup.nd lens −256.1496951 1.983 plastic 1.635 23.96 −29.895  4 20.7275614 1.732  5 Aperture 1E+18 −0.849  6 3.sup.rd lens 12.78726634 2.767 plastic 1.544 55.96 84.007  7 16.37813476 5.294  8 4.sup.th lens 64.83551032 1.370 plastic 1.544 55.96 −99.336  9 29.30546727 4.347 10 5.sup.th lens −135.2776651 2.620 plastic 1.635 23.96 165.460 11 −59.82903995 5.303 12 6.sup.th lens 40.62288963 3.276 plastic 1.635 23.96 −262.588 13 31.68238653 1.125 14 7.sup.th lens 89.25062439 1.017 plastic 1.661 20.36 112.488 15 −466.5593131 0.125 16 Infrared 1E+18 0.300 BK_7 1.517 64.17 rays filter 17 1E+18 1.001 18 Image 1E+18 0.000 plane Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the second surface is 6.611 mm; the clear aperture of the eighth surface is 4.000 mm; the clear aperture of the twelfth surface is 3.800 mm.

TABLE-US-00016 TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k   6.495441E−19   4.485900E−28 −7.094343E−13 −2.341687E+00 −7.499086E+00 −4.885681E−01 −1.973795E−07 A4 −1.453586E−05 −1.432057E−04 −7.770166E−05 −3.130151E−04 −3.072845E−04 −3.317329E−04 −4.194953E−04 A6   1.576923E−07 −3.102899E−05 −4.791787E−05   7.924908E−06   5.715827E−05   6.869176E−05   2.273061E−04 A8 −1.472733E−08   3.833557E−06   5.318755E−06 −1.062887E−06 −5.352456E−06 −5.228396E−06 −2.498213E−05 A10   6.156107E−10 −1.877603E−07 −2.447860E−07   1.302306E−07   2.630187E−07   9.474890E−08   9.370863E−07 A12 −1.716277E−11   4.635536E−09   5.726525E−09 −5.979255E−09 −6.655143E−09   5.447162E−09   2.151038E−09 A14   2.228603E−13 −5.771966E−11 −6.848178E−11   1.116321E−10   6.864396E−11 −2.651393E−10 −9.114866E−10 A16 −1.007034E−15   2.929955E−13   3.430828E−13 −6.948886E−13   0.000000E+00   3.433839E−12   1.359254E−11 A18   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 Surface 9 10 11 12 13 14 15 k   2.149367E−16 −2.352974E−13   1.963300E−28 −8.752247E−11 −5.814253E+01 −2.466190E−09 −9.000000E+01 A4 −6.726406E−04 −7.344151E−04 −1.742441E−04   8.662455E−04   8.191814E−04   5.449336E−03   1.255921E−02 A6   2.555062E−04   1.416869E−04   1.235689E−04   1.219232E−04   1.299959E−04 −1.647891E−03 −2.914498E−03 A8 −2.627674E−05 −2.121117E−05 −2.177395E−05 −2.356675E−05 −2.623712E−05   1.978671E−04   3.176790E−04 A10   3.707401E−07   1.571272E−06   2.110237E−06   1.998620E−06   3.949334E−07 −2.052819E−05 −2.456240E−05 A12   7.957654E−08 −1.084296E−07 −1.774295E−07 −1.056345E−07   1.041019E−07   1.528948E−06   1.435994E−06 A14 −4.719930E−09   8.367862E−09   1.278818E−08   3.587298E−09 −5.891420E−09 −5.863833E−08 −5.025789E−08 A16   8.035198E−11 −4.122174E−10 −5.603857E−10 −5.474600E−11   9.891621E−11   7.827346E−10   6.996508E−10 A18   0.000000E+00   8.390643E−12   1.047003E−11   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00

[0212] 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.

[0213] The exact parameters of the fifth embodiment based on Table 9 and Table 10 are listed in the following table:

TABLE-US-00017 Fifth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3 MTFQ7 0.88  0.87  0.88  0.73  0.7   0.73  ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 6.707 2.664 2.776  2.523  3.761  5.124  ETP7 ETL EBL EIN EIR PIR 18.412  38.766  4.969  33.797  3.668  0.125  EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 0.872 1.242 29.347  41.966  21.034  1.995  ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.838 1.343 1.003  1.841  1.436  1.564  ETP7/TP7 BL EBL/BL SED SIN SED/SIN 18.099  1.426 3.4846 −8.169  17.324  −0.472  ED12 ED23 ED34 ED45 ED56 ED67 0.504 1.202 3.997  12.692  −4.403  −22.160    ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.357 1.361 0.755  2.920  −0.830  −19.697    |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.5887  1.1948 0.4252 0.3596 0.2159 0.1360 |f/f7| TP1/TP2 TP6/TP7 IN34/IN45 IN12/f IN67/f  0.3175  4.0337 3.2206 1.2181 0.0104 0.0315 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7521  0.3559 4.2208 0.6539 HOS InTL HOS/HOI InS/HOS ODT % TDT % 39.7831 38.3575 9.9458 0.6962 2.8552 0.4237 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    TP1 TP2 TP3 TP4 TP5 TP6  8.0000  1.9833 2.7671 1.3704 2.6196 3.2763 TP7 IN12 IN23 IN34 IN45 IN56  1.0173  0.3711 0.8830 5.2944 4.3466 5.3034

[0214] The results of the equations of the fifth embodiment based on Table 9 and

[0215] Table 10 are listed in the following table:

TABLE-US-00018 Values related to the inflection points of the fifth embodiment (Reference wavelength: 555 nm) HIF121 6.0401 HIF121/HOI 1.5100 SGI121 −0.3875 |SGI121|/(|SGI121| + TP1) 0.0462 HIF211 5.9143 HIF211/HOI 1.4786 SGI211 −0.1996 |SGI211|/(|SGI211| + TP2) 0.0914 HIF221 4.7790 HIF221/HOI 1.1947 SGI221   0.4544 |SGI221|/(|SGI221| + TP2) 0.1864 HIF222 5.4255 HIF222/HOI 1.3564 SGI222   0.5617 |SGI222|/(|SGI222| + TP2) 0.2207 HIF411 3.0024 HIF411/HOI 0.7506 SGI411   0.0901 |SGI411|/(|SGI411| + TP4) 0.0617 HIF421 2.8608 HIF421/HOI 0.7152 SGI421   0.1446 |SGI421|/(|SGI421| + TP4) 0.0955 HIF621 2.5388 HIF621/HOI 0.6347 SGI621   0.1268 |SGI621|/(|SGI621| + TP6) 0.0373 HIF622 3.5948 HIF622/HOI 0.8987 SGI622   0.2112 |SGI622|/(|SGI622| + TP6) 0.0605 HIF711 1.4814 HIF711/HOI 0.3703 SGI711   0.0248 |SGI711|/(|SGI711| + TP7) 0.0238 HIF721 0.1199 HIF721/HOI 0.0300 SGI721 −0.00001 |SGI721|/(|SGI721| + TP7) 0.00001 HIF722 1.7494 HIF722/HOI 0.4373 SGI722   0.0531 |SGI722|/(|SGI722| + TP7) 0.0496

Sixth Embodiment

[0216] 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 sixth lens 660, a seventh lens 670, an infrared rays filter 680, an image plane 690, and an image sensor 692. FIG. 6C shows a modulation transformation of the optical image capturing system 60 of the sixth embodiment of the present application in visible spectrum.

[0217] The first lens 610 has positive refractive power and is made of plastic. An object-side surface 612, which faces the object side, is a convex aspheric surface, and an image-side surface 614, which faces the image side, is a convex aspheric surface. The image-side surface 614 has an inflection point.

[0218] The second lens 620 has negative refractive power and is made of plastic. An object-side surface 622 thereof, which faces the object side, is a concave aspheric surface, and an image-side surface 624 thereof, which faces the image side, is a concave aspheric surface. The image-side surface 624 has an inflection point.

[0219] The third lens 630 has positive refractive power and is made of plastic. An object-side surface 632, which faces the object side, is a convex aspheric surface, and an image-side surface 634, which faces the image side, is a concave aspheric surface. The object-side surface 632 has an inflection point.

[0220] The fourth lens 640 has negative refractive power and is made of plastic. An object-side surface 642, which faces the object side, is a convex aspheric surface, and an image-side surface 644, which faces the image side, is a concave aspheric surface. The image-side surface 644 has an inflection point.

[0221] The fifth lens 650 has positive refractive power and is made of plastic. An object-side surface 652, which faces the object side, is a convex aspheric surface, and an image-side surface 654, which faces the image side, is a concave aspheric surface. The object-side surface 652 has an inflection point, and the image-side surface 654 has an inflection point.

[0222] The sixth lens 660 has negative refractive power and is made of plastic. An object-side surface 662, which faces the object side, is a convex surface, and an image-side surface 664, which faces the image side, is a concave surface. The image-side surface 664 has two inflection points. Whereby, the incident angle of each view field entering the sixth lens 660 can be effectively adjusted to improve aberration.

[0223] The seventh lens 670 has positive refractive power and is made of plastic. An object-side surface 672, which faces the object side, is a concave surface, and an image-side surface 674, which faces the image side, is a convex surface. The object-side surface 672 has an inflection point, and the image-side surface 674 has two inflection points. 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.

[0224] 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.

[0225] The parameters of the lenses of the sixth embodiment are listed in Table 11 and Table 12.

TABLE-US-00019 TABLE 11 f = 35.7188 mm; f/HEP = 2.4; HAF = 6.2200 deg Focal Thickness Refractive Abbe length Surface Radius of curvature (mm) (mm) Material index number (mm)  0 Object 1E+18 1E+18  1 1.sup.st lens 14.40533454 8.000 plastic 1.544 55.96 21.652  2 −52.88069175 0.603  3 2.sup.nd lens −100.4556914 1.703 plastic 1.635 23.96 −28.654  4 22.56740171 1.922  5 Aperture 1E+18 0.090  6 3.sup.rd lens 12.49604602 2.994 plastic 1.544 55.96 92.665  7 15.19273665 6.639  8 4.sup.th lens 46.7153716 4.216 plastic 1.544 55.96 −57.126  9 18.10262284 0.530 10 5.sup.th lens 30.67150661 2.301 plastic 1.635 23.96 70.685 11 92.56876311 4.230 12 6.sup.th lens 856.5146998 2.705 plastic 1.635 23.96 −78.908 13 47.60697478 0.991 14 7.sup.th lens −15.10370028 0.975 plastic 1.661 20.36 68.888 15 −11.65854527 0.050 16 Infrared 1E+18 0.300 BK_7 1.517 64.17 rays filter 17 1E+18 1.000 18 Image 1E+18 0.000 plane Reference wavelength (d-line): 555 nm. The position of blocking light: the clear aperture of the second surface is 6.644 mm; the clear aperture of the eighth surface is 4.260 mm; the clear aperture of the twelfth surface is 3.850 mm.

TABLE-US-00020 TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k −3.596113E−19 −8.717325E−17 −5.274000E−29 −1.780572E+00 −7.798260E+00 −1.651663E+00   7.830000E−29 A4 −2.833236E−05 −9.323965E−05   7.041513E−05 −6.454517E−05 −8.895464E−05 −2.791981E−04   2.817179E−04 A6   2.567575E−07 −3.373958E−05 −7.789632E−05 −5.637234E−05 −7.554237E−06   2.244260E−05   1.434451E−05 A8 −1.237503E−08   3.528009E−06   7.778934E−06   6.039956E−06   1.076438E−06 −1.381777E−06 −3.188645E−07 A10   4.256592E−10 −1.553874E−07 −3.570220E−07 −2.883966E−07 −3.640551E−08   9.431975E−08 −1.441665E−07 A12 −7.992778E−12   3.538140E−09   8.661642E−09   7.333091E−09   3.343183E−10 −4.921558E−09   1.170990E−08 A14   5.062517E−14 −4.123685E−11 −1.085873E−10 −9.777653E−11   0.000000E+00   1.217516E−10 −4.212588E−10 A16   5.142215E−17   1.970749E−13   5.593324E−13   5.360063E−13   0.000000E+00 −1.093323E−12   6.958116E−12 A18   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 Surface 9 10 11 12 13 14 15 k −1.798642E−16   1.029040E−15 −8.272329E−09 −4.408151E−15 −9.000000E+01 −3.002219E+00 −8.999889E+01 A4   9.900692E−04   1.125612E−03   1.177189E−03   1.580454E−03   4.597426E−03   1.968174E−02   2.131901E−02 A6 −1.879508E−04 −3.424621E−04 −2.567590E−04 −2.965371E−04 −1.831776E−03 −9.208128E−03 −1.000082E−02 A8   2.835451E−05   4.385513E−05   3.015943E−05   3.717415E−05   3.231418E−04   1.820264E−03   1.943866E−03 A10 −2.018936E−06 −3.086546E−06 −2.372815E−06 −3.148731E−06 −3.035843E−05 −1.917145E−04 −2.025590E−04 A12   5.341913E−08   1.286665E−07   1.407617E−07   1.666998E−07   1.510943E−06   1.108013E−05   1.176984E−05 A14 −4.066323E−10 −3.969201E−09 −5.835520E−09 −4.805497E−09 −3.747012E−08 −3.313342E−07 −3.602685E−07 A16   7.948187E−12   7.024325E−11   1.183857E−10   5.770269E−11   3.946588E−10   4.019262E−09   4.535541E−09 A18   0.000000E+00 −3.344619E−14 −5.081564E−13   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00 A20   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00   0.000000E+00

[0226] 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.

[0227] The exact parameters of the sixth embodiment based on Table 11 and Table 12 are listed in the following table:

TABLE-US-00021 Sixth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0 MTFQ3 MTFQ7 0.88  0.88  0.87  0.73 0.71  0.71  ETP1 ETP2 ETP3 ETP4 ETP5 ETP6 6.678 2.419 2.943   6.453 1.730  11.891  ETP7 ETL EBL EIN EIR PIR 9.167 38.282  −20.916    59.198 −22.216    0.050 EIN/ETL SETP/EIN EIR/PIR SETP STP SETP/STP 1.546 0.697 −444.329   41.281 22.895  1.803 ETP1/TP1 ETP2/TP2 ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.835 1.420 0.983   1.530 0.752  4.396 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 9.403 1.351 15.4819  17.917 15.005  1.194 ED12 ED23 ED34 ED45 ED56 ED67 0.725 2.377 6.524  −0.586 3.590  5.287 ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 1.203 1.182 0.983  −1.105 0.849  5.333 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.6496  1.2466 0.3855  0.6253 0.5053  0.4527 |f/f7| TP1/TP2 TP6/TP7 IN34/IN45 IN12/f IN67/f  0.5185  4.6972 2.7742  12.5340 0.0169  0.0278 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.7557  0.3092 5.0510 0.7269 HOS InTL HOS/HOI InS/HOS ODT % TDT % 39.2502 37.8997 9.8126  0.6885 2.7689  0.6270 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0    0    0    0   00     00    HVT61 HVT62 HVT71 HVT72 HVT72/HOI HVT72/HOS 0    0    0    0   0    0    TP1 TP2 TP3 TP4 TP5 TP6  8.0000  1.7032 2.9943  4.2164 2.3012  2.7048 TP7 IN12 IN23 IN34 IN45 IN56  0.9750  0.6027 2.0118  6.6393 0.5297  4.2302

[0228] The results of the equations of the sixth embodiment based on Table 11 and

[0229] Table 12 are listed in the following table:

TABLE-US-00022 Values related to the inflection points of the sixth embodiment (Reference wavelength: 555 nm) HIF121 6.3861 HIF121/HOI 1.5965 SGI121 −0.5522 |SGI121|/(|SGI121| + TP1) 0.0646 HIF221 5.0819 HIF221/HOI 1.2705 SGI221   0.4588 |SGI221|/(|SGI221| + TP2) 0.2122 HIF311 4.6709 HIF311/HOI 1.1677 SGI311   0.7078 |SGI311|/(|SGI311| + TP3) 0.1912 HIF421 3.3225 HIF421/HOI 0.8306 SGI421   0.3557 |SGI421|/(|SGI421| + TP4) 0.0778 HIF511 2.9002 HIF511/HOI 0.7250 SGI511   0.1383 |SGI511|/(|SGI511| + TP5) 0.0567 HIF521 3.1583 HIF521/HOI 0.7896 SGI521   0.0729 |SGI521|/(|SGI521| + TP5) 0.0307 HIF621 1.7234 HIF621/HOI 0.4308 SGI621   0.0420 |SGI621|/(|SGI621| + TP6) 0.0153 HIF622 3.4271 HIF622/HOI 0.8568 SGI622   0.0960 |SGI622|/(|SGI622| + TP6) 0.0343 HIF711 3.6167 HIF711/HOI 0.9042 SGI711 −0.5520 |SGI711|/(|SGI711| + TP7) 0.3615 HIF721 0.6302 HIF721/HOI 0.1575 SGI721 −0.0133 |SGI721|/(|SGI721| + TP7) 0.0134 HIF722 1.0550 HIF722/HOI 0.2638 SGI722 −0.0260 |SGI722|/(|SGI722| + TP7) 0.0259

[0230] 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.