Patent ID: 11966017
Assignee: AAC OPTICS (CHANGZHOU) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The camera optical lens as described in claim 1, wherein the camera optical lens satisfies:

−5.87≤f4/f≤−1.39;

−0.23≤(R7+R8)/(R7−R8)≤2.09; and

0.02≤d7/TTL≤0.06;

where f denotes a focal length of the camera optical lens, 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, 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.