Patent ID: 11885935
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The camera optical lens according to claim 1, wherein the camera optical lens further satisfies the conditions of:

−508.35≤f4/f≤22.66;

−12.16≤(R7+R8)/(R7−R8)≤40.93; and

0.03≤d7/TTL≤0.11;

where
f4 denotes a focal length of the fourth lens,
R7 denotes a central curvature radius of an object-side surface of the fourth lens;
R8 denotes a central curvature radius of an image-side surface of the fourth lens; and
d7 denotes an on-axis thickness of the fourth lens.