Patent ID: 11966020
Assignee: RAYTECH OPTICAL (CHANGZHOU) 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;
a second lens having a positive refractive power;
a third lens;
a fourth lens;
a fifth lens;
a sixth lens;
a seventh lens;
an eighth lens; and
a ninth lens,
wherein the camera optical lens satisfies following conditions:

4.00≤f1/f≤7.00;

−256.21≤(R1+R2)/(R1−R2)≤−10.38;

0.05≤d1/TTL≤0.17; and

3.00≤d5/d6≤12.00,

where
f denotes a focal length of the camera optical lens,
f1 denotes a focal length of the first lens,
R1 denotes a central curvature radius of an object side surface of the first lens,
R2 denotes a central curvature radius of an image side surface of the first lens,
d1 denotes an on-axis thickness of the first 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 an object side surface of the fourth, 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.