Camera optical lens
AssigneeAAC Optics (Suzhou) Co., Ltd.
InventorsWenjing Niu, Jia Chen
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to the technical field of optical lens and discloses a camera optical lens satisfying following conditions: 0.50≤f12/f≤1.20; 1.50≤f4/f≤5.00; −10.00≤R2/R1≤−1.20; where f12 denotes a combined focal length of the first lens and the second lens, f denotes a focal length of the camera optical lens, f4 denotes a focal length of the fourth lens, R2 denotes a central curvature radius of an image-side surface of the first lens, and R1 denotes a central curvature radius of an object-side surface of the first lens. The camera optical lens in the present disclosure satisfies a design requirement of long focal length and ultra-thinness while having good optical functions.
Claims9
A camera optical lens consisting of four lenses with refractive power, 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;
- and
- a fourth lens having a positive refractive power;
- wherein the camera optical lens satisfies following conditions:
- 0.50≤f12/f≤1.20;
- 1.50≤f4/f≤5.00;
- and
- −10.00≤R2/R1≤−1.20;
- where
- f12 denotes a combined focal length of the first lens and the second lens,
- f denotes a focal length of the camera optical lens,
- f4 denotes a focal length of the fourth lens,
- R2 denotes a central curvature radius of an image-side surface of the first lens, and
- R1 denotes a central curvature radius of an object-side surface of the first lens.
Dependencies are inferred from the claim text.