Patent ID: 11885932
Assignee: AAC OPTICS (SUZHOU) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
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 negative refractive power;
a fourth lens having positive refractive power; and
a fifth lens having negative refractive power,
wherein the camera optical lens satisfies following conditions:

−5.00≤f2/f≤−2.50;

2.00≤d5/d6≤4.00;

−4.00≤R7/R8≤−1.30;

−2.00≤(R1+R2)/(R1−R2)≤−1.00,

0.59≤(R9+R10)/(R9−R10)≤5.58; and

0.04≤d9/TTL≤0.12,

where
f denotes a total focal length of the camera optical lens;
f2 denotes a focal length of the second lens;
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;
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;
d5 denotes an on-axis thickness of the third lens;
d6 denotes an on-axis distance from an image side surface of the third lens to the object side surface of the fourth 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;
d9 denotes an on-axis thickness of the fifth 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.