Patent ID: 11886041
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, wherein the camera optical lens satisfies:

0.54≤f4/f≤2.90;

−0.21≤(R7+R8)/(R7−R8)≤1.55; and

0.04≤d7/TTL≤0.19,

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.