Optical imaging lens assembly

Patent metadata

Field	Value
Publication number	US-12055688-B2
Application number	US-202117338721-A
Country	US
Kind code	B2
Filing date	Jun 4, 2021
Priority date	Jun 11, 2020
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

The disclosure discloses an optical imaging lens assembly, which sequentially includes, from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens with refractive power respectively, wherein TTL is a distance from an object-side surface of the first lens to an imaging surface of the optical imaging lens assembly on the optical axis, and ImgH is a half of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens assembly, TTL and ImgH meet TTL/ImgH<1.5; and a sum fp of effective focal lengths of the lenses with positive refractive power in the first lens to the fifth lens and a sum fm of effective focal lengths of the lenses with negative refractive power in the first lens to the fifth lens meet −19.0<fm/fp<−10.0.

First claim

What is claimed is:

1. An optical imaging lens assembly, sequentially comprising, from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens with refractive power respectively, wherein
TTL is a distance from an object-side surface of the first lens to an imaging surface of the optical imaging lens assembly on the optical axis, and ImgH is a half of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens assembly, TTL and ImgH meet TTL/ImgH<1.5; and
a sum fp of effective focal lengths of the lenses with positive refractive power in the first lens to the fifth lens and a sum fm of effective focal lengths of the lenses with negative refractive power in the first lens to the fifth lens meet −19.0<fm/fp<−10.0;
the first lens has positive refractive power, the second lens has negative refractive power, the third lens has negative refractive power, the fourth lens has positive refractive power, the fifth lens has negative refractive power;
ARE 12 is a contour curve length from an intersection point of an image-side surface of the first lens and the optical axis to a point at ½ of an Entrance Pupil Diameter (EPD) of the optical imaging lens assembly on the image-side surface of the first lens, and SAG 12 is a distance from the intersection point of the image-side surface of the first lens and the optical axis to an effective radius vertex of the image-side surface of the first lens on the optical axis, ARE 12 and SAG 12 meet 9.0<ARE 12 /|SAG 12 |<17.0;
an Abbe number V 4 of the fourth lens and a curvature radius R 7 of an object-side surface of the fourth lens meet −8.5 mm −1 <V 4 /R 7 <−6.0 mm −1 .

2. The optical imaging lens assembly according to claim 1 , wherein DT 11 is a maximum effective radius of the object-side surface of the first lens, and DT 51 is a maximum effective radius of an object-side surface of the fifth lens, DT 51 and DT 11 meet 3.0<DT 51 /DT 11 <4.0.

3. The optical imaging lens assembly according to claim 1 , wherein ARE 31 is a contour curve length from an intersection point of an object-side surface of the third lens and the optical axis to a point at ½ of the EPD of the optical imaging lens assembly on the object-side surface of the third lens, and SAG 31 is a distance from the intersection point of the object-side surface of the third lens and the optical axis to an effective radius vertex of the object-side surface of the third lens on the optical axis, ARE 31 and SAG 31 meet 6.5<ARE 31 /|SAG 31 |<14.5.

4. The optical imaging lens assembly according to claim 1 , wherein a spacing distance T 45 of the fourth lens and the fifth lens on the optical axis and a center thickness CT 2 of the second lens on the optical axis meet 1.5<T 45 /CT 2 <2.5.

5. The optical imaging lens assembly according to claim 1 , wherein the object-side surface thereof is a convex surface.

6. The optical imaging lens assembly according to claim 1 , wherein an Abbe number V 2 of the second lens and a curvature radius R 4 of an image-side surface of the second lens meet 3.0 mm −1 <V 2 /R 4 <6.0 mm −1 .

7. The optical imaging lens assembly according to claim 1 , wherein a total effective focal length f of the optical imaging lens assembly and an Entrance Pupil Diameter (EPD) of the optical imaging lens assembly meet 2.0<f/EPD<2.5.

8. The optical imaging lens assembly according to claim 1 , wherein the optical imaging lens assembly further comprises an aperture diaphragm, and a distance SL from the aperture diaphragm to the imaging surface of the optical imaging lens assembly on the optical axis and a sum ΣCT of center thicknesses of the first lens to the fifth lens on the optical axis meet 1.5<SL/ΣCT<2.5.

9. The optical imaging lens assembly according to claim 1 , wherein Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, Semi-FOV and a maximum incident angle CRAmax of incidence of a chief ray in an electronic photosensitive component meet Semi-FOV/CRAmax>1.0.

10. The optical imaging lens assembly according to claim 1 , wherein a curvature radius R 1 of the object-side surface of the first lens and a curvature radius R 4 of an image-side surface of the second lens may meet 2.0<R 4 /R 1 <3.5.

11. The optical imaging lens assembly according to claim 1 , wherein a curvature radius R 5 of an object-side surface of the third lens and a curvature radius R 10 of an image-side surface of the fifth lens may meet 5.0<R 5 /R 10 <7.0.

12. An optical imaging lens assembly, sequentially comprising, from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens with refractive power respectively, wherein
TTL is a distance from an object-side surface of the first lens to an imaging surface of the optical imaging lens assembly on the optical axis, and ImgH is a half of a diagonal length of an effective pixel region on the imaging surface of the optical imaging lens assembly, TTL and ImgH meet TTL/ImgH<1.5; and
ARE 12 is a contour curve length from an intersection point of an image-side surface of the first lens and the optical axis to a point at ½ of an Entrance Pupil Diameter (EPD) of the optical imaging lens assembly on the image-side surface of the first lens, and SAG 12 is a distance from the intersection point of the image-side surface of the first lens and the optical axis to an effective radius vertex of the image-side surface of the first lens on the optical axis, ARE 12 and SAG 12 meet 9.0<ARE 12 /|SAG 12 |<17.0,
an Abbe number V 4 of the fourth lens and a curvature radius R 7 of an object-side surface of the fourth lens meet −8.5 mm −1 <V 4 /R 7 <−6.0 mm −1 ;
the first lens has positive refractive power, the second lens has negative refractive power, the third lens has negative refractive power, the fourth lens has positive refractive power, the fifth lens has negative refractive power.

13. The optical imaging lens assembly according to claim 12 , wherein Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, Semi-FOV and a maximum incident angle CRAmax of incidence of a chief ray in an electronic photosensitive component meet Semi-FOV/CRAmax>1.0.

14. The optical imaging lens assembly according to claim 12 , wherein a sum fp of effective focal lengths of the lenses with positive refractive power in the first lens to the fifth lens and a sum fm of effective focal lengths of the lenses with negative refractive power in the first lens to the fifth lens meet −19.0<fm/fp<−10.0.

15. The optical imaging lens assembly according to claim 12 , wherein DT 11 is a maximum effective radius of the object-side surface of the first lens, and DT 51 is a maximum effective radius of an object-side surface of the fifth lens, DT 51 and DT 11 meet 3.0<DT 51 /DT 11 <4.0.

16. The optical imaging lens assembly according to claim 12 , wherein ARE 31 is a contour curve length from an intersection point of an object-side surface of the third lens and the optical axis to a point at ½ of the EPD of the optical imaging lens assembly on the object-side surface of the third lens, and SAG 31 is a distance from the intersection point of the object-side surface of the third lens and the optical axis to an effective radius vertex of the object-side surface of the third lens on the optical axis, ARE 31 and SAG 31 meet 6.5<ARE 31 /|SAG 31 |<14.5.

17. The optical imaging lens assembly according to claim 12 , wherein a spacing distance T 45 of the fourth lens and t

Assignees

• Zhejiang Sunny Optics Co Ltd

Inventors

• Li Yanping
• He Lingbo
• Li Jianjun
• Dai Fujian
• Zhao Liefeng

Classifications

• G02B9/60

  having five components only · CPC title

• G02B13/18

  with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)} · CPC title

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B13/06

  Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces} · CPC title

• G02B27/0012 Primary

  Optical design, e.g. procedures, algorithms, optimisation routines · CPC title