Optical camera lens
AssigneeAAC Optics (Suzhou) Co., Ltd.
InventorsRenlong Yu, Shunda Zhou
Life of this patent
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Abstract
The present application relates to the field of optical lenses and discloses an optical camera lens including, in order from an objective side to an image side: a first lens having a negative refractive force, a second lens having a negative refractive force, a third lens having a positive refractive force, a fourth lens having a positive refractive force, a fifth lens having a negative refractive force, and a sixth lens having a positive refractive force. The following relationship expressions are satisfied: 1.70≤n1≤2.20; −2.30≤f2/f≤−1.60; −1.80≤R11/R12≤−0.50; 0.10≤f3/f4≤0.50; 8.00≤d5/d6≤30.00. The optical camera lens provided by the present application has excellent optical performance while satisfying the design requirements of large aperture and ultra-wide angle.
Claims12
An optical camera lens, comprising, in order from an objective side to an image side:
- a first lens having a negative refractive force;
- a second lens having a negative refractive force;
- a third lens having a positive refractive force;
- a fourth lens having a positive refractive force;
- a fifth lens having a negative refractive force;
- and
- a sixth lens having a positive refractive force;
- wherein a refractive index of the first lens is n1;
- a focal length of the optical camera lens is f;
- a focal length of the second lens is f2;
- a focal length of the third lens is f3;
- a focal length of the fourth lens is f4;
- a central radius of curvature of an objective surface of the sixth lens is R11;
- a central radius of curvature of an image surface of the sixth lens is R12;
- an on-axis thickness of the third lens is d5;
- an on-axis distance from an image surface of the third lens to an objective surface of the fourth lens is d6, and the following relationship expressions are satisfied:
- 1.7
- ≤
- n
-
- 1
- ≤
- 2.2
- ;
-
- -
- 2.3
- ≤
- f
-
- 2
- /
- f
- ≤
- -
- 1.6
- ;
-
- -
- 1.8
- ≤
- R
-
- 11
- /
- R
-
- 12
- ≤
- -
- 0
- .50
- ;
-
- 0.1
- ≤
- f
-
- 3
- /
- f
-
- 4
- ≤
- 0.5
- ;
-
- 8.
- 00
- ≤
- d
-
- 5
- /
- d
-
- 6
- ≤
- 3
-
- 0
- .
- 0
-
- 0
- .
Dependencies are inferred from the claim text.