Patent ID: 11947078
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The camera optical lens as described in claim 1, further satisfying the following conditions:

−328.93≤f2/f≤1.41;

2.23≤(R3+R4)/(R3−R4)≤85.16; and

0.02≤d3/TTL≤0.06,

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, and
TTL denotes the total optical length from the object side surface of the first lens to the image plane of the camera optical lens along the optic axis.