Patent ID: 11885934
Assignee: RAYTECH OPTICAL (CHANGZHOU) 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 positive refractive power;
a third lens having a negative refractive power;
a fourth lens having a negative refractive power;
a fifth lens having positive refractive power;
a sixth lens having a negative refractive power;
a seventh lens having positive refractive power;
an eighth lens having positive refractive power; and
a ninth lens having a negative refractive power,
wherein an object side surface of the fifth lens is a concave surface at the paraxial position;
wherein the camera optical lens satisfies following conditions:

1.60≤f1/f≤3.00;

5.00≤R9/R10≤25.00, and

2.00≤d15/d16≤10.00,

where
f denotes a focal length of the camera optical lens,
f1 denotes a focal length of the first lens,
R9 denotes a central curvature radius of an object side surface of the fifth lens,
R10 denotes a central curvature radius of an image side surface of the fifth lens,
d15 denotes an on-axis thickness of the eighth lens, and
d16 denotes an on-axis distance from an image side surface of the eighth lens to an object side surface of the ninth lens.