Camera optical lens
AssigneeChangzhou AAC Raytech Optronics Co., Ltd.
InventorZiwei Liu
Life of this patent
Estimating the term…
Abstract
A camera optical lens includes from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens and a fifth lens. Focal length of camera optical lens is f, focal length of first lens is f1, on-axis thickness of second lens is d3, on-axis distance from image-side surface of second lens to object-side surface of third lens is d4, curvature radius of object-side surface of second lens is R3, curvature radius of image-side surface of second lens is R4, curvature radius of object-side surface of fourth lens is R7, curvature radius of image-side surface of fourth lens is R8, following relational expressions are satisfied: 1.10≤f1/f≤1.60; 1.50≤d3/d4≤3.50, −8.00≤R7/R8≤−4.00, 1.00≤(R3+R4)/(R3−R4)≤1.80. The camera optical lens has good optical performance such as 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 a negative refractive power;
- a third lens having a refractive power;
- a fourth lens having a positive refractive power;
- and
- a fifth lens having a negative refractive power;
- wherein, a focal length of the camera optical lens is f, a focal length of the first lens is f1, an on-axis thickness of the second lens is d3, an on-axis distance from an image-side surface of the second lens to an object-side surface of the third lens is d4, a curvature radius of an object-side surface of the second lens is R3, a curvature radius of the image-side surface of the second lens is R4, a curvature radius of an object-side surface of the fourth lens is R7, a curvature radius of an image-side surface of the fourth lens is R8, following relational expressions are satisfied:
- 1.1
- ≤
- f
-
- 1
- /
- f
- ≤
- 1.6
- ;
- 1.
- 50
- ≤
- d
-
- 3
- /
- d
-
- 4
- ≤
- 3.5
- ;
- -
- 8.
-
- 0
- ≤
- R
-
- 7
- /
- R
-
- 8
- ≤
- -
- 4
- .00
- ;
- and
- 1.
- 00
- ≤
- (
- R
-
- 3
- +
- R
-
- 4
- )
- /
- (
- R
-
- 3
- -
- R
-
- 4
- )
- ≤
- 1.8
- .
Dependencies are inferred from the claim text.