Patent ID: 11966025
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A camera optical lens, comprising nine lenses, the nine lenses from an object side to an image side being:
a first lens with a negative refractive power;
a second lens with a positive refractive power;
a third lens with a negative refractive power;
a fourth lens with a positive refractive power;
a fifth lens;
a sixth lens with a positive refractive power;
a seventh lens with a negative refractive power;
an eighth lens with a positive refractive power; and
an ninth lens with a negative refractive power;
wherein the camera optical lens satisfies following conditions:

−5.00≤f1/f≤−2.00; 2.50≤d13/d14≤10.00; 2.50≤R11/R12≤6.50;

where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
d13 denotes an on-axis thickness of the seventh lens;
d14 denotes an on-axis distance from an image-side surface of the seventh lens to an object-side surface of the eighth lens;
R11 denotes a central curvature radius of an object-side surface of the sixth lens;
R12 denotes a central curvature radius of an image-side surface of the sixth lens.