Patent ID: 11947083
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. The camera optical lens according to claim 1, further satisfying following conditions:

−1.88≤f9/f≤−0.55; 0.07≤(R17+R18)/(R17−R18)≤0.75; 0.03≤d17/TTL≤0.14;

where
f9 denotes a focal length of the ninth lens;
R17 denotes a central curvature radius of an object-side surface of the ninth lens;
R18 denotes a central curvature radius of an image-side surface of the ninth lens;
d17 denotes an on-axis thickness of the ninth lens;
TTL denotes a total track length of the camera optical lens.