Camera lens assembly

Patent metadata

Field	Value
Publication number	US-11846756-B2
Application number	US-202016864422-A
Country	US
Kind code	B2
Filing date	May 1, 2020
Priority date	May 24, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

The present disclosure discloses a camera lens assembly comprising, sequentially from an object side to an image side along an optical axis, a stop; a first lens having a positive refractive power with an object-side surface thereof being a convex surface; a second lens having a positive refractive power; a third lens; a fourth lens; a fifth lens having a positive refractive power; a sixth lens having a negative refractive power with an object-side surface thereof being a concave surface; and wherein, a distance Ts along the optical axis from the stop to the object-side surface of the first lens satisfies: 0<Ts<0.2 mm.

First claim

What is claimed is:

1. A camera lens assembly comprising, sequentially from an object side to an image side of the camera lens assembly along an optical axis:
a stop;
a first lens having a positive refractive power, and an object-side surface of the first lens being convex;
a second lens having a positive refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power;
a sixth lens having a negative refractive power, and an object-side surface of the sixth lens being concave; and
wherein, a distance Ts along the optical axis from the stop to the object-side surface of the first lens satisfies: 0.04 mm ≤Ts<0.2 mm, wherein an object to image direction is a positive axis direction,
wherein a total effective focal length f ofthe camera lens assembly and a radius of curvature R 11 of the object-side surface of the sixth lens satisfy −1.0<f/R 11 <−0.5.

2. The camera lens assembly according to claim 1 , wherein an abbe number V 4 of the fourth lens and an abbe number V 5 of the fifth lens satisfy |V 4 −V 5 |≤15.

3. The camera lens assembly according to claim 1 , wherein a total effective focal length f of the camera lens assembly and an effective focal length f5 of the fifth lens satisfy 0.5<f/f5≤1.52.

4. The camera lens assembly according to claim 1 , wherein a total effective focal length f of the camera lens assembly and an effective focal length f3 of the third lens satisfy −0.6<f/f3<0.1.

5. The camera lens assembly according to claim 1 , wherein a total effective focal length f of the camera lens assembly, an effective focal length f1 of the first lens and an effective focal length f2 of the second lens satisfy f/f1+f/f2≤1.3.

6. The camera lens assembly according to claim 1 , wherein a total effective focal length f of the camera lens assembly, a radius of curvature R 9 of the object-side surface of the fifth lens and a radius of curvature R 10 of an image-side surface of the fifth lens satisfy f/R 9 −f/R 10 <3.0.

7. The camera lens assembly according to claim 1 , wherein a radius of curvature R 5 of an object-side surface of the third lens and a radius of curvature R 6 of an image-side surface of the third lens satisfy 0<R 5 /R 6 <3.5.

8. The camera lens assembly according to claim 1 , wherein a combined focal length f123 of the first lens, the second lens and the third lens, and a spaced interval T 34 along the optical axis between the third lens and the fourth lens satisfy 9<f123/T 34 <17.

9. The camera lens assembly according to claim 1 , wherein a distance TTL along the optical axis from the object-side surface of the first lens to an image plane of the camera lens assembly and half of a diagonal length ImgH of an effective pixel area on the image plane of the camera lens assembly satisfy TTL/ImgH<1.5.

10. The camera lens assembly according to claim 1 , wherein a total effective focal length f of the camera lens assembly and half of a diagonal length ImgH of an effective pixel area on an image plane of the camera lens assembly satisfy 0.85≤ImgH/f≤1.0.

11. A camera lens assembly comprising, sequentially from an object side to an image side of the camera lens assembly along an optical axis:
a stop;
a first lens having a positive refractive power, and an object-side surface of the first lens being convex;
a second lens having a positive refractive power;
a third lens;
a fourth lens;
a fifth lens having a positive refractive power, and an image-side surface of the fifth lens being convex;
a sixth lens having a negative refractive power, and an object-side surface of the sixth lens being concave; and
wherein a total effective focal length f of the camera lens assembly and an effective focal length f6 of the sixth lens satisfy −1.6≤f/f6≤−1.0;
a radius of curvature R 5 of an object-side surface of the third lens and a radius of curvature R 6 of an image-side surface of the third lens satisfy 0<R 5 /R 6 <3.5; and
a distance Ts along the optical axis from the stop to the object-side surface of the first lens satisfies: 0.04 mm ≤Ts<0.2 mm, wherein an object to image direction is a positive axis direction.

12. The camera lens assembly according to claim 11 , wherein the total effective focal length f of the camera lens assembly and a radius of curvature R 11 of the object-side surface of the sixth lens satisfy −1.0<f/R 11 <−0.5.

13. The camera lens assembly according to claim 11 , wherein the total effective focal length f of the camera lens assembly and an effective focal length f5 of the fifth lens satisfy 0.5<f/f5≤1.52.

14. The camera lens assembly according to claim 11 , wherein the total effective focal length f of the camera lens assembly and an effective focal length f3 of the third lens satisfy −0.6<f/f3<0.1.

15. The camera lens assembly according to claim 11 , wherein the total effective focal length f of the camera lens assembly, an effective focal length f1 of the first lens and an effective focal length f2 of the second lens satisfy f/f1+f/f2≤1.3.

16. The camera lens assembly according to claim 11 , wherein a spaced interval T 56 along the optical axis between the fifth lens and the sixth lens and a center thickness CT 6 along the optical axis of the sixth lens satisfy 0.8≤T 56 /CT 6 ≤2.6.

17. The camera lens assembly according to claim 11 , wherein a spaced interval T 12 along the optical axis between the first lens and the second lens, a spaced interval T 23 along the optical axis between the second lens and the third lens and a sum ΣAT of spaced intervals along the optical axis between any two adjacent lenses among the first lens to the sixth lens satisfy (T 12 +T 23 )/ΣAT<0.1.

18. The camera lens assembly according to claim 11 , wherein a combined focal length f123 of the first lens, the second lens and the third lens and a spaced interval T 34 along the optical axis between the third lens and the fourth lens satisfy 9<f123/T 34 <17.

19. The camera lens assembly according to claim 11 , wherein the total effective focal length f of the camera lens assembly and the half of the diagonal length ImgH of the effective pixel area on the image plane of the camera lens assembly satisfy 0.85≤ImgH/f≤1.0.

Assignees

• Zhejiang Sunny Optical Co Ltd

Inventors

• Guan Lei
• Wang Xinquan
• Dai Fujian
• Zhao Liefeng

Classifications

• G02B13/0045 Primary

  having five or more lenses · CPC title

• G02B9/62

  having six components only · CPC title

• G02B27/0025

  for optical correction, e.g. distorsion, aberration · 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