Patent ID: 11892598
Assignee: CHANGZHOU RAYTECH OPTRONICS 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:
0.33≤f4/f≤34.54;
−98.43≤(R7+R8)/(R7−R8)≤1.19; and
0.04≤d7/TTL≤0.21,
where
f denotes a focal length of the camera optical lens;
f4 denotes a focal length of 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; and
TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.