Patent ID: 11966018
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

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

−3.20≤f4/f≤−0.96;

−1.28≤(R7+R8)/(R7−R8)≤0.28; and

0.02≤d7/TTL≤0.06,

where
f4 denotes a focal length of the fourth lens,
R7 denotes a central curvature radius of the 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.