Patent ID: 11892600
Assignee: AAC OPTICS (SUZHOU) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

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

0.85≤f1/f≤1.10;

−3.00≤f2/f≤−1.50;

−50.00≤(R5+R6)/(R5−R6)≤−5.00;

1.50≤R7/R8≤3.50; and

0.70≤d7/d8≤1.20,

where
f denotes a total 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;
d7 denotes an on-axis thickness of the fourth 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;
R5 denotes a central curvature radius of an object side surface of the third lens;
R6 denotes a central curvature radius of an image side surface of the third lens;
R7 denotes a central curvature radius of an object side surface of the fourth lens; and
R8 denotes a central curvature radius of the image side surface of the fourth lens.