Patent ID: 11885933
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

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

1.15≤f4/≤4.38;

0.74≤(R7+R8)(R7−R8)≤3.25; and

0.03≤d7/TTL≤0.15,

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.