Camera optical lens
AssigneeRaytech Optical (Changzhou) Co., Ltd.
InventorsKang Wang, Jia Chen
Life of this patent
Estimating the term…
Abstract
Disclosed is a camera optical lens, comprising, 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: 1.40≤(R3+R4)/(R3−R4)≤5.00; −12.00≤f3/f≤−6.80; 1.30≤(R7+R8)/(R7−R8)≤4.00; 2.10≤d7/d9≤3.50; and 0.80≤d4/d6≤1.60. The camera optical lens provided by the present disclosure has a large aperture, a wide angle and ultra-thinness while having good optical performance.
Claims10
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;
- 2.10≤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;
- 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.
Dependencies are inferred from the claim text.