Camera optical lens
AssigneeRaytech Optical (Changzhou) Co., Ltd.
InventorShuang Wu
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 a 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: 3.50≤f1/f≤6.00, and 1.50≤d15/d16≤9.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens is defined as f1, 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 has a good optical performance, and meets design requirements of a large aperture, wide-angle and ultra-thinness.
Claims10
A camera optical lens, comprising, from an object side to an image side:
- a first lens having a positive refractive power;
- a second lens having positive refractive power;
- a third lenses having negative refractive power;
- a fourth lens having positive refractive power;
- a fifth lens;
- a sixth lens;
- a seventh lens having positive refractive power;
- an eighth lens;
- and
- a ninth lens having negative retractive power,
- wherein the camera optical lens satisfies following conditions:
- 3.50≤f1/f≤6.00;
- −13.67≤(R13+R14)/(R13−R14)≤−2.42;
- 0.02≤d13/TTL≤0.08;
- and
- 1.50≤d15/d16≤9.00,
- where
- f denotes a focal length of the camera optical lens,
- f1 denotes a focal length of the first lens,
- R13 denotes a central curvature radius of an object side surface of the seventh lens,
- R14 denotes a central curvature radius of an image side surface of thy seventh lens,
- d13 denotes an on-axis thickness of the seventh lens,
- d15 denotes an on-axis thickness of the eighth lens,
- d16 denotes an on-axis distance from an image side surface of the eighth lens to an object side surface of the ninth lens, and
- TTL denotes a total optical length from an object side surface of the first lens to an image plane of the camera optical lens along an optic axis.
Dependencies are inferred from the claim text.