Patent ID: 11966024
Assignee: RAYTECH OPTICAL (CHANGZHOU) CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A camera optical lens, comprising five lenses, wherein, the five lenses are, from an object side to an image side in sequence:
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; and
a fifth lens having a negative refractive power;
wherein, the camera optical lens satisfies the following conditions:

1.40≤(R3+R4)/(R3−R4)≤5.00;

−12.00≤f3/f≤6.80;

1.30≤(R7+R8)/(R7−R8)≤4.00;

2.35≤(R9+R10)/(R9−R10)≤8.02;

2.10≤d7/d9≤3.50; and

0.80≤d4/d6≤1.60;

wherein,
f denotes a focus length of the camera optical lens;
f3 denotes a focus length of the third lens;
R3 denotes a central curvature radius of an object side surface of the second lens;
R4 denotes a central curvature radius of an image side surface of the second lens;
R7 denotes a central curvature radius of an object side surface of the fourth lens;
R8 denotes a central curvature radius of an image side surface of the fourth 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;
d4 denotes an on-axis distance from the image side surface of the second lens to an object side surface of the third lens;
d6 denotes an on-axis distance from an image side surface of the third lens to the object side surface of the fourth lens;
d7 denotes an on-axis thickness of the fourth lens; and
d9 denotes an on-axis thickness of the fifth lens.