Patent ID: 11892597
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. The camera optical lens as described in claim 1, wherein the camera optical lens satisfies the following conditions:

−1.62≤f9/f≤−0.49;

0.56≤(R17+R18)/(R17−R18)≤1.91; and

0.02≤d17/TTL≤0.07,

where
f9 denotes a focal length of the ninth lens;
R17 denotes a central curvature radius of an object side surface of the ninth lens;
R18 denotes a central curvature radius of an image side surface of the ninth lens;
d17 denotes an on-axis thickness of the ninth 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.