Camera optical lens
AssigneeRaytech Optical (Changzhou) Co., Ltd.
InventorXiaofeng Wang
Life of this patent
Estimating the term…
Abstract
A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens having positive refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 1.60≤f1/f≤3.00, and 2.00≤d15/d16≤10.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d15 denotes an on-axis thickness of the eighth lens, and d16 denotes an on-axis distance from an image side surface of the eighth lens to an object side surface of the ninth lens. The camera optical lens according to the present invention has better optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.
Claims10
A camera optical lens, comprising, from an object side to an image side:
- a first lens having positive refractive power;
- a second lens having positive refractive power;
- a third lens having a negative refractive power;
- a fourth lens having a negative refractive power;
- a fifth lens having positive refractive power;
- a sixth lens having a negative refractive power;
- a seventh lens having positive refractive power;
- an eighth lens having positive refractive power;
- and
- a ninth lens having a negative refractive power,
- wherein an object side surface of the fifth lens is a concave surface at the paraxial position;
- wherein the camera optical lens satisfies following conditions:
- 1.60≤f1/f≤3.00;
- 5.00≤R9/R10≤25.00, and
- 2.00≤d15/d16≤10.00,
- where
- f denotes a focal length of the camera optical lens,
- f1 denotes a focal length of the first 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,
- d15 denotes an on-axis thickness of the eighth lens, and
- d16 denotes an on-axis distance from an image side surface of the eighth lens to an object side surface of the ninth lens.
Dependencies are inferred from the claim text.