Patent ID: 11892603
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens according to claim 1, wherein the camera optical lens further satisfies the following conditions:
−2.98≤f4/f≤−0.52;
−2.18 (R7+R8)/(R7−R8)≤−0.31; and
0.01≤d7/TTL≤0.15;
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 an image-side surface of the fourth lens; and
d7 denotes an on-axis thickness of the fourth lens.