Patent ID: 11966027
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens according to claim 1, further satisfying following conditions:
2.05≤f4/f≤14.09; −5.47≤(R7+R8)/(R7−R8)≤−0.31; 0.01≤d7/TTL≤0.05;
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.