# US 12,000,980 B2 · Camera optical lens

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- Number: US 12,000,980 B2
- Document ID: US12000980B2
- Status: Granted
- Kind: B2
- Application number: 17/134,506
- Filed: 2020-12-28
- Published: 2021-12-09
- Granted: 2024-06-04
- Earliest claimed: 2020-06-08
- Assignees: AAC Optics (Changzhou) Co., Ltd.
- Applicants: AAC Optics (Changzhou) Co., Ltd.
- Inventors: Rongbao Shi
- Web page: https://patentgrep.com/patent/US12000980B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B 9/62: having six components only
- G02B 13/18: with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)}
- G02B 15/146: {having more than five groups}
- G02B 27/0012: {Optical design, e.g. procedures, algorithms, optimisation routines}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A camera optical lens includes a first lens to a sixth lens. The camera optical lens satisfies: 6.50≤f3/f≤10.00; 1.50≤(R3+R4)/(R3−R4)≤3.00; 8.00≤d1/d2≤10.50; 1.50≤d8/d7≤2.00, where f denotes a focal length of the camera optical lens, f3 denotes a focal length of a third lens, R3 and R4 respectively denotes curvature radiuses of an object side surface and an image side surface of a second lens, d1 denotes an on-axis thickness of the first lens, d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens, d7 denotes an on-axis thickness of a fourth lens, and d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of a fifth lens. The camera optical lens has a good optical performance and meets the design requirements for a large aperture, a wide angle and ultra-thinning.

## Claims

### Claim 1

A camera optical lens, comprising from an object side to an image side:
a first lens having positive refractive power;
a second lens having negative refractive power;
a third lens having positive refractive power;
a fourth lens having negative refractive power;
a fifth lens having positive refractive power; and
a sixth lens having negative refractive power,
wherein a total number of lenses in the camera optical lens is 6,
wherein the camera optical lens satisfies:
6.50≤f3/f≤10.00;
1.50≤(R3+R4)/(R3−R4)≤3.00;
−0.45≤(R9+R10)/(R9−R10)≤−0.14;
8.00≤d1/d2≤10.50; and
1.50≤d8/d7≤2.00,
where
f denotes a focal length of the camera optical lens,
f3 denotes a focal length of the third lens,
R3 denotes a curvature radius of an object side surface of the second lens,
R4 denotes a curvature radius of an image side surface of the second lens,
R9 denotes a curvature radius of the object side surface of the fifth lens,
R10 denotes a curvature radius of an image side surface of the fifth lens,
d1 denotes an on-axis thickness of the first lens,
d2 denotes an on-axis distance from an image side surface of the first lens to the object side surface of the second lens,
d7 denotes an on-axis thickness of the fourth lens, and
d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of the fifth lens.

### Claim 2 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
−1.00≤f6/f≤−0.50,
where f6 denotes a focal length of the sixth lens.

### Claim 3 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
0.42≤f1/f≤1.43;
−3.99≤(R1+R2)/(R1−R2)≤−1.22; and
0.05≤d1/TTL≤0.18,
where
f1 denotes a focal length of the first lens,
R1 denotes a curvature radius of an object side surface of the first lens,
R2 denotes a curvature radius of the image side surface of the first lens, and
TTL denotes 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.

### Claim 4 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
−7.06≤f2/f≤−1.88; and
0.03≤d3/TTL≤0.09,
where
f2 denotes a focal length of the second lens,
d3 denotes an on-axis thickness of the second lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 5 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
−0.35≤(R5+R6)/(R5−R6)≤1.12; and
0.03≤d5/TTL≤0.10,
where
R5 denotes a curvature radius of an object side surface of the third lens,
R6 denotes a curvature radius of an image side surface of the third lens,
d5 denotes an on-axis thickness of the third lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 6 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
−1388.38≤f4/f≤−2.21;
0.42≤(R7+R8)/(R7−R8)≤117.34; and
0.03≤d7/TTL≤0.10,
where
f4 denotes a focal length of the fourth lens,
R7 denotes a curvature radius of an object side surface of the fourth lens,
R8 denotes a curvature radius of the image side surface of the fourth lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 7 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
0.56≤f5/f≤1.80;
and
0.06≤d9/TTL≤0.21,
where
f5 denotes a focal length of the fifth lens,
d9 denotes an on-axis thickness of the fifth lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 8 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
−1.76≤(R11+R12)/(R11−R12)≤0.12; and
0.04≤d11/TTL≤0.12,
where
R11 denotes a curvature radius of an object side surface of the sixth lens,
R12 denotes a curvature radius of an image side surface of the sixth lens,
d11 denotes an on-axis thickness of the sixth lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 9 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
TTL/IH≤1.17,
where
IH denotes an image height of the camera optical lens, and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.

### Claim 10 (depends on 1)

The camera optical lens as described in claim 1, further satisfying:
FOV≥86.00°,
where FOV denotes a field of view of the camera optical lens.

### Claim 11 (depends on 1)

The camera optical lens as described in claim 1, wherein an image side surface of the sixth lens is concave at a paraxial position.