Camera optical lens

Patent metadata

Field	Value
Publication number	US-12585086-B2
Application number	US-202318399621-A
Country	US
Kind code	B2
Filing date	Dec 28, 2023
Priority date	Jul 7, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

Provided is a camera optical lens, including first lens having negative refractive power, second lens having positive refractive power, third lens having positive refractive power, and fourth lens having negative refractive power, focal length of the camera optical lens is f, focal length of the first lens is f1, combined focal length of the third and fourth lenses is f34, on-axis thickness of the first lens is d1, on-axis distance between the first and second lenses is d2, total optical length of the camera optical lens is TTL, abbe number of the first lens is v1, following relational expressions are satisfied: −30.00≤f1/d1≤−8.00; 2.00≤TTL/f≤3.00; −2.30≤f34/f<−1.30; 58.00≤v1≤82.00; 0.25≤d2/TTL≤0.45. The camera optical lens has good optical performance, and is particularly suitable for mobile phone camera lens assembly, vehicle-mounted lens and WEB camera lens.

First claim

What is claimed is:

1 . A camera optical lens, comprising from an object-side to an image-side: a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power;
wherein a focal length of the camera optical lens is f, a focal length of the first lens is f1, a combined focal length of the third lens and the fourth lens is f34, an on-axis thickness of the first lens is d1, an on-axis distance from an image-side surface of the first lens to an object-side surface of the second lens is d2, a total optical length from the object-side surface of the first lens to an image plane of the camera optical lens along an optic axis of the camera optical lens is TTL, an abbe number of the first lens is v1, and following relational expressions are satisfied:

-
30.

≤

f
⁢
1
/
d
⁢
1

≤

-
8.

;

⁢

2.
≤

TTL
/
f

≤
3.

;

⁢

-
2.3

≤

f
⁢
34
/
f

<

-
1.3

;

⁢

58.
≤

v
⁢
1

≤
82.

;
and

⁢

0.25
≤

d
⁢
2
/
TTL

≤

0.45
.

2 . The camera optical lens as described in claim 1 , wherein a central curvature radius of an object-side surface of the second lens is R3, a central curvature radius of an image-side surface of the second lens is R4, and a following relational expression is satisfied:

-
6.

≤

R
⁢
3
/
R
⁢
4

≤

-

1.
.

3 . The camera optical lens as described in claim 1 , wherein a focal length of the fourth lens is f4, an on-axis thickness of the fourth lens is d7, and a following relational expression is satisfied:

-
3.

≤

d
⁢
4
/
d
⁢
7

≤

-

1.5
.

4 . The camera optical lens as described in claim 1 , wherein an object-side surface of the first lens is convex in a paraxial region, and an image-side surface of the first lens is concave in the paraxial region;
a central curvature radius of an object-side surface of the first lens is R1, and a central curvature radius of the image-side surface of the first lens is R2, and following relational expressions are satisfied:

-
5.5

≤

f
⁢
1
/
f

≤

-
1.08

;

⁢

1.77
≤

(

R
⁢
1

+

R
⁢
2

)

/

(

R
⁢
1

-

R
⁢
2

)

≤
10.09

;
and

⁢

0.02
≤

d
⁢
1
/
TTL

≤

0.1
.

5 . The camera optical lens as described in claim 1 , wherein an object-side surface of the second lens is convex in a paraxial region, and an image-side surface of the second lens is convex in the paraxial region;
a focal length of the second lens is f2, a central curvature radius of an object-side surface of the second lens is R3, a central curvature radius of an image-side surface of the second lens is R4, an on-axis thickness of the second lens is d3, and following relational expressions are satisfied:

0.29
≤

f
⁢
2
/
f

Assignees

• Aac Optics Suzhou Co Ltd

Inventors

• Wang Hongyu
• Zhou Shunda

Classifications

• G02B9/58

  arranged - + + - · CPC title

• G02B9/34

  having four 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

• G02B13/06

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

• G02B13/004 Primary

  having four lenses · CPC title