OPTICAL IMAGE CAPTURING SYSTEM

• US 20160349487A1
• Filed: 03/15/2016
• Published: 12/01/2016
• Est. Priority Date: 05/29/2015
• Status: Active Grant

• Current Assignee: Ability Opto-Electronics Technology Co., Ltd.
• Original Assignee: Ability Opto-Electronics Technology Co., Ltd.
• Inventors: LIU, YAO-WEI, TANG, NAI-YUAN, CHANG, YEONG-MING
• Granted Patent: US 9,835,826 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 13/0045 having five or more lenses
• CPC Class Codes: G02B 9/60 having five components only

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, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imagining 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 refractive power;

a second lens having refractive power;

a third lens having refractive power;

a fourth lens having refractive power;

a fifth lens having refractive power; and

an image plane;

wherein the optical image capturing system consists of the five lenses with refractive power;

at least one lens among the first to the fifth lenses has positive refractive power;

the fifth lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side, and both the object-side surface and the image-side surface of the fifth lens are aspheric surfaces;

wherein the optical image capturing system satisfies;

1.2≦

f/HEP≦

6.0;

0.5≦

HOS/f≦

3.0;

0<

InTL/HOS<

0.9; and

1≦

2(ARE/HEP)≦

1.5;

where f1, f2, f3, f4, and f5 are focal lengths of the first lens to the fifth lens, respectively;

f is a focal length of the optical image capturing system;

HEP is an entrance pupil diameter of the optical image capturing system;

HOS is a distance in parallel with the optical axis from an object-side surface of the first lens to the image plane;

InTL is a distance in parallel with the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens;

for any surface of any lens, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

2. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

PLTA≦

30 μ

m;

PSTA≦

30 μ

m;

NLTA≦

30 μ

m;

NSTA≦

30 μ

m;

SLTA≦

30 μ

m;

SSTA≦

30 μ

m; and

|TDT|<

100%;

where TDT is a TV distortion;

HOI is a height for image formation perpendicular to the optical axis on the image plane;

PLTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of a tangential fan of the optical image capturing system after a longest operation wavelength passing through an edge of the aperture;

PSTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of the tangential fan after a shortest operation wavelength passing through the edge of the aperture;

NLTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture;

NSTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture;

SLTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan of the optical image capturing system after the longest operation wavelength passing through the edge of the aperture;

SSTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan after the shortest operation wavelength passing through the edge of the aperture.

3. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

1≦

ARS/EHD≦

1.5;

where, 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.

4. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

0 mm<

HOS≦

10 mm.

5. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

0 deg<

HAF≦

70 deg;

where HAF is a half of a view angle of the optical image capturing system.

6. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

0.5≦

ARE51/TP5≦

15; and

0.5≦

ARE52/TP5≦

15;

where ARE51 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fifth lens, along a surface profile of the object-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

ARE52 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fifth lens, along a surface profile of the image-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

TP5 is a thickness of the fifth lens on the optical axis.

7. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies:

0.5≦

ARE41/TP4≦

15; and

0.5≦

ARE42/TP4≦

15;

where ARE41 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fourth lens, along a surface profile of the object-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

ARE42 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fourth lens, along a surface profile of the image-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

TP4 is a thickness of the fourth lens on the optical axis.

8. The optical image capturing system of claim 1, wherein the second lens has negative refractive power, and the fourth lens has positive refractive power.

9. The optical image capturing system of claim 1, further comprising an aperture, wherein the optical image capturing system further satisfies:

0.5≦

InS/HOS≦

1.1;

where InS is a distance in parallel with the optical axis between the aperture and the image plane.

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 refractive power;

a fourth lens having refractive power;

a fifth lens having refractive power; and

an image plane;

wherein the optical image capturing system consists of the five lenses with refractive power;

at least a surface of each of at least two lenses among the first to the five lenses has at least an inflection point;

at least one lens between the second and the five lenses has positive refractive power;

the five lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side, and both the object-side surface and the image-side surface of the five lens are aspheric surfaces;

wherein the optical image capturing system satisfies;

1.2≦

f/HEP≦

6.0;

0.5≦

HOS/f≦

3.0;

0<

InTL/HOS<

0.9; and

1≦

2(ARE/HEP)≦

1.5;

where f1, f2, f3, f4, and f5 are focal lengths of the first lens to the fifth lens, respectively;

f is a focal length of the optical image capturing system;

HEP is an entrance pupil diameter of the optical image capturing system;

HOS is a distance in parallel with the optical axis between an object-side surface, which face the object side, of the first lens and the image plane;

InTL is a distance in parallel with the optical axis from the object-side surface of the first lens to the image-side surface of the third lens;

for any surface of any lens, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

11. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

1≦

ARS/EHD≦

1.5;

where, 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.

12. The optical image capturing system of claim 10, wherein the fifth lens has negative refractive power, and at least a surface among the object-side surface and the image-side surface thereof has at least an inflection point.

13. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

PLTA≦

30 μ

m;

PSTA≦

30 μ

m;

NLTA≦

30 μ

m;

NSTA≦

30 μ

m;

SLTA≦

30 μ

m; and

SSTA≦

30 μ

m;

where HOI is a height for image formation perpendicular to the optical axis on the image plane;

PLTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of a tangential fan of the optical image capturing system after a longest operation wavelength passing through an edge of the aperture;

PSTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of the tangential fan after a shortest operation wavelength passing through the edge of the aperture;

NLTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture;

NSTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture;

SLTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan of the optical image capturing system after the longest operation wavelength passing through the edge of the aperture;

SSTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan after the shortest operation wavelength passing through the edge of the aperture.

14. The optical image capturing system of claim 10, wherein the second lens has negative refractive power, and the fourth lens has positive refractive power.

15. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

0<

IN12/f≦

0.8;

where IN12 is a distance on the optical axis between the first lens and the second lens.

16. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

0<

IN45/f≦

0.8;

where IN45 is a distance on the optical axis between the fourth lens and the fifth lens.

17. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

0.1≦

(TP5+IN45)/TP4≦

10;

where IN45 is a distance on the optical axis between the fourth lens and the fifth lens;

TP5 is a thickness of the fifth lens on the optical axis;

TP5 is a thickness of the fifth lens on the optical axis.

18. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

0.1≦

(TP1+IN12)/TP2≦

10;

where IN12 is a distance on the optical axis between the first lens and the second lens;

TP1 is a thickness of the first lens on the optical axis;

TP2 is a thickness of the second lens on the optical axis.

19. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies:

0<

TP3/(IN23+TP3+IN34)<

1;

where TP3 is a thickness of the third lens on the optical axis;

IN23 is a distance on the optical axis between the second lens and the three lens;

IN34 is a distance on the optical axis between the third lens and the fourth lens.

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 refractive power;

a fourth lens having positive refractive power, wherein at least one surface among an object-side surface, which faces the object side, and an image-side surface, which faces the image side, thereof has at least an inflection point;

a fifth lens having refractive power, wherein the fifth lens has at least an inflection point on at least one surface among an object-side surface, which faces the object side, and an image-side surface, which faces the image side, thereof; and

an image plane;

wherein the optical image capturing system consists of the five lenses having refractive power;

at least a surface of each of at least two lenses among the first lens to the fourth lens has at least an inflection point thereon;

both an object-side surface, which faces the object side, and an image-side surface, which faces the image side, of the fourth lens are aspheric surfaces;

both the object-side surface and the image-side surface of the fifth lens are aspheric surfaces;

wherein the optical image capturing system satisfies;

1.2≦

f/HEP≦

3.5;

0.4≦

|tan(HAF)|≦

1.5;

0.5≦

HOS/f≦

2.5;

0<

InTL/HOS<

0.9; and

1≦

2(ARE/HEP)≦

1.5;

where f1, f2, f3, f4, and f5 are focal lengths of the first lens to the fifth lens, respectively;

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 view angle of the optical image capturing system;

HOS is a distance in parallel with the optical axis between an object-side surface, which face the object side, of the first lens and the image plane;

InTL is a distance in parallel with the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens;

for any surface of any lens, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

21. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:

1≦

ARS/EHD≦

1.5;

where, 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.

22. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:

0 mm<

HOS≦

10 mm.

23. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:

0.5≦

ARE51/TP5≦

15; and

0.5≦

ARE52/TP5≦

15;

where ARE51 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fifth lens, along a surface profile of the object-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

ARE52 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fifth lens, along a surface profile of the image-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

TP5 is a thickness of the fifth lens on the optical axis.

24. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies:

0.5≦

ARE41/TP4≦

15; and

0.5≦

ARE42/TP4≦

15;

where ARE41 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fourth lens, along a surface profile of the object-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

ARE42 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fourth lens, along a surface profile of the image-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis;

TP4 is a thickness of the fourth lens on the optical axis.

25. The optical image capturing system of claim 20, further comprising an aperture an image sensor, and a driving module, wherein the image sensor is disposed on the image plane;

the driving module is coupled with the lenses to move the lenses;

the optical image capturing system further satisfies;

0.5≦

InS/HOS≦

1.1;

where InS is a distance in parallel with the optical axis between the aperture and the image plane.