Patent ID: 11892599
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:

−99.91≤f4/f≤5.70;

−37.77≤(R7+R8)/(R7−R8)≤0.72; and

0.02≤d7/TTL≤0.10,

where
f4 denotes a focal length of the 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.