Patent ID: 11947075
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The camera optical lens as described in claim 1, wherein the camera optical lens satisfies following conditions:

−4.36≤f2/f≤−1.08;

1.58≤(R3+R4)/(R3−R4)≤7.30; and

0.01≤d3/TTL≤0.04,

where
f2 denotes a focal length of the second lens;
R3 denotes a central curvature radius of an object side surface of the second lens;
R4 denotes a central curvature radius of an image side surface 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.