Patent ID: 11874445
Assignee: CHANGZHOU RAYTECH OPTRONICS 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 following conditions:

0.55≤f4/f≤12.72;

0.64≤(R7+R8)/(R7−R8)≤9.96; and

0.02≤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.