Patent ID: 11867883
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens according to claim 1 further satisfying following conditions:

−65.26≤f4/f≤40.69;

−252.61≤(R7+R8)/(R7−R8)≤40.41; and

0.03≤d7/TTL≤0.08;

where
f4 denotes a focal length of the fourth lens;
R7 denotes a curvature radius of an object-side surface of the fourth lens;
R8 denotes a curvature radius of the image-side surface of the fourth lens;
d7 denotes an on-axis thickness of the fourth lens; and
TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis.