Patent ID: 11966021
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The camera optical lens according to claim 1, further satisfying the following conditions:

1.05≤f2/f≤5.50; −13.16≤(R3+R4)/(R3−R4)≤−2.56; 0.01≤d3/TTL≤0.04;

where
f2 denotes a focal length of the second lens;
R3 denotes a central curvature radius of an object-side surface of the second lens;
R4 denotes a central curvature radius of an image-side surface of the second lens;
d3 denotes an on-axis thickness of the second lens.