Patent ID: 11867883
Assignee: CHANGZHOU RAYTECH OPTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A camera optical lens comprising six-piece lenses, from an object side to an image side, the six-piece lenses are:
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens having a negative refractive power;
a fourth lens;
a fifth lens having a positive refractive power; and
a sixth lens having a negative refractive power;
wherein the camera optical lens satisfies following conditions:

0.65≤f1/f≤0.85;

3.00≤f3/f2≤8.00;

0.80≤d3/d4≤1.20;

0.85≤d8/d9≤1.35; and

−4.00≤R9/R10≤−2.00;

where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
f2 denotes a focal length of the second lens;
f3 denotes a focal length of the third lens;
d3 denotes an on-axis thickness of the second lens;
d4 denotes an on-axis distance from an image-side surface of the second lens to an object-side surface of the third lens;
d8 denotes an on-axis distance from an image-side surface of the fourth lens to an object-side surface of the fifth lens;
d9 denotes an on-axis thickness of the fifth lens;
R9 denotes a curvature radius of the object-side surface of the fifth lens; and
R10 denotes a curvature radius of an image-side surface of the fifth lens.