Camera optical lens

Patent metadata

Field	Value
Publication number	US-11668900-B2
Application number	US-202017134500-A
Country	US
Kind code	B2
Filing date	Dec 28, 2020
Priority date	Jun 23, 2020
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

A camera optical lens includes a first lens to a fifth lens. The camera optical lens satisfies 1.80≤f1/f≤3.50; 1.25≤d7/d9≤1.80; 0.40≤f4/f≤0.90; 3.50≤R9/R10≤7.50; and 1.00≤R3/R4≤2.00, where f denotes an total focal length of the camera optical lens, f1 denotes a focal length of the first lens, f4 denotes a focal length of a fourth lens, R3 denotes a curvature radius of an object side surface of a second lens, R4 denotes a curvature radius of an image side surface of the second lens, R9 denotes a curvature radius of an object side surface of the fifth lens, R10 denotes a curvature radius of an image side surface of the fifth lens, d7 denotes an on-axis thickness of the fourth lens, and d9 denotes an on-axis thickness of the fifth lens. The camera optical lens meets design requirements of a large aperture, a wide angle, and ultra-thinness while having good optical performance.

First claim

What is claimed is:

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 positive refractive power;
a third lens;
a fourth lens having positive refractive power; and
a fifth lens having negative refractive power;
wherein the camera optical lens satisfies:
1.80≤ f 1/ f≤ 3.50;

1.25≤ d 7/ d 9≤1.80;

0.40≤ f 4/ f≤ 0.90;

3.50≤ R 9/ R 10≤7.50; and

1.00≤ R 3/ R 4≤2.00,

where
f denotes a total focal length of the camera optical lens,
f1 denotes a focal length of the first lens,
f4 denotes a focal length of the fourth 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 an object side surface of the fifth lens,
R10 denotes a curvature radius of an image side surface of the fifth lens,
d7 denotes an on-axis thickness of the fourth lens, and
d9 denotes an on-axis thickness of the fifth lens.

2. The camera optical lens as described in claim 1 , further satisfying:
1.80≤ d 2/ d 4≤3.00,

where
d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens, and
d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens.

3. The camera optical lens as described in claim 1 , further satisfying:
−3.61≤( R 1+ R 2)/( R 1 −R 2)≤−0.36; and

0.05≤ d 1/ TTL≤ 0.16,

where
R1 denotes a curvature radius of an object side surface of the first lens,
R2 denotes a curvature radius of an image side surface of the first lens,
d1 denotes an on-axis thickness 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.

4. The camera optical lens as described in claim 1 , further satisfying:
0.77≤ f 2/ f≤ 48.42;

1.52≤( R 3+ R 4)/( R 3− R 4)≤33.19; and

0.03≤ d 3/ TTL≤ 0.11,

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.

5. The camera optical lens as described in claim 1 , further satisfying:
−15.19≤ f 3/ f≤ 57.84;

−12.25≤( R 5+ R 6)/( R 5− R 6)≤179.50; and

0.04≤ d 5/ TTL≤ 0.11,

where
f3 denotes a focal length of the third lens,
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.

6. The camera optical lens as described in claim 1 , further satisfying:
1.15≤( R 7+ R 8)/( R 7− R 8)≤6.48; and

0.09≤ d 7/ TTL≤ 0.31,

where
R7 denotes a curvature radius of an object side surface of the fourth lens,
R8 denotes a curvature radius of an image side surface of the fourth lens,
d7 denotes an on-axis thickness 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.

7. The camera optical lens as described in claim 1 , further satisfying:
−2.21≤ f 5/ f≤− 0.32;

0.66≤( R 9+ R 10)/( R 9− R 10)≤2.65; and

0.06≤ d 9/ TTL≤ 0.22,

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.

8. The camera optical lens as described in claim 1 , further satisfying:
TTL/IH≤ 1.45,
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.

9. The camera optical lens as described in claim 1 , further satisfying:
FOV≥104.00°,

where FOV denotes a field of view of the camera optical lens.

10. The camera optical lens as described in claim 1 , further satisfying:
FNO ≤2.46,

where FNO denotes an F number of the camera optical lens.

Assignees

• Aac Optics Changzhou Co Ltd

Inventors

• Zhu Feng

Classifications

• G02B13/06

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

• G02B27/0012

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

• G02B13/0045 Primary

  having five or more lenses · 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

• G02B15/145115 Primary

  arranged ++++- · CPC title