Patent ID: 11947077
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens as described in claim 1, further satisfying following conditions:

−57.47≤f4/f≤27.56;

−35.82≤(R7+R8)/(R7−R8)≤28.73; and

0.01≤d7/TTL≤0.04,

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,
d7 denotes an on-axis thickness of the fourth lens.