Patent ID: 11947081
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens as described in claim 1, further satisfying following conditions:

1.06≤f4/f≤4.70;

−2.24≤(R7+R8)/(R7−R8)≤0.91; and

0.03≤d7/TTL≤0.11,

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 the image side surface 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.