Patent ID: 11947077
Assignee: CHANGZHOU RAYTECH OPTRONICS 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 a positive refractive power;
a second lens having a negative 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:

2.00≤f1/f≤5.00;

−22.67≤(R1+R2)/(R1−R2)≤−3.33;

0.03≤d1/TTL≤0.09; and

2.00≤d3/d4≤10.00,

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,
d3 denotes an on-axis thickness of the second lens,
d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third 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.