Patent ID: 11947076
Assignee: AAC OPTICS (CHANGZHOU) CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A camera optical lens, consisting of, from an object side to an image side:
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 having a positive refractive power;
a fifth lens having a negative refractive power;
a sixth lens having a positive refractive power; and
a seventh lens having a negative refractive power,
wherein the seventh lens includes an object side surface being concave in a paraxial region,
wherein the camera optical lens satisfies following conditions:

2.80≤v1/v2≤4.30;

5.00≤f4/f≤12.00;

−4.00≤f5/f≤−1.50; and

−20.00≤R13/R14≤−5.00,

where
v1 denotes an abbe number of the first lens;
v2 denotes an abbe number of the second lens;
f denotes a focal length of the camera optical lens;
f4 denotes a focal length of the fourth lens;
f5 denotes a focal length of the fifth lens;
R13 denotes a curvature radius of an object side surface of the seventh lens; and
R14 denotes a curvature radius of an image side surface of the seventh lens.