Camera optical lens
AssigneeAAC Optics Solutions Pte. Ltd.
InventorsJia Chen, Wen Sun
Life of this patent
Estimating the term…
Abstract
Provided is a camera optical lens including, sequentially from an object side to an image side: a first lens having a negative refractive power; a second lens having a refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. At least one of the first to seventh lenses comprises a free-form surface. The camera optical lens satisfies following conditions: −3.00≤f4/f3≤−1.00; 2.90≤d9/d10≤8.50; and 2.00≤d11/d12≤15.00. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses.
Claims10
A camera optical lens, comprising, sequentially from an object side to an image side:
- a first lens having a negative refractive power;
- a second lens having a refractive power;
- a third lens having a positive refractive power;
- a fourth lens having a negative refractive power;
- a fifth lens having a refractive power;
- a sixth lens having a positive refractive power;
- and
- a seventh lens having a negative refractive power,
- wherein at least one of the first to seventh lenses comprises a free-form surface, and the camera optical lens satisfies following conditions:
- −3.00≤f4/f3≤−1.00;
- 2.90≤d9/d10≤8.50;
- and
- 2.00≤d11/d12≤15.00,
- −0.20≤(R5+R6)/(R5−R6)≤0.28;
- where
- f3 denotes a focal length of the third lens;
- f4 denotes a focal length of the fourth lens;
- d9 denotes an on-axis thickness of the fifth lens;
- d10 denotes an on-axis distance from an image side surface of the fifth lens to an object side surface of the sixth lens;
- d11 denotes an on-axis thickness of the sixth lens;
- and
- d12 denotes an on-axis distance from an image side surface of the sixth lens to an object side surface of the seventh lens;
- R5 denotes a curvature radius of an object side surface of the third lens;
- R6 denotes a curvature radius of an image side surface of the third lens.
Dependencies are inferred from the claim text.