Camera optical lens
AssigneeAAC Optics (Changzhou) Co., Ltd.
InventorsKe Yang, Shunda Zhou
Life of this patent
Estimating the term…
Abstract
The present disclosure discloses a camera optical lens including seven lenes. From an object-side to an-image side, the camera optical lens includes: a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; a sixth lens having a negative refractive power; a seventh lens having a positive refractive power; wherein the camera lens satisfies the following conditions: −1.30≤f1/f≤1.00; 0.02≤d4/TTL≤0.06; n2≥1.70; 0.10≤BFL/TTL≤0.30. The camera optical lens can meet design requirements of large aperture and wide angle.
Claims12
A camera optical lens, comprising seven lenses, from an object side to an image side, the seven lenses in sequence being:
- a first lens having a negative refractive power;
- a second lens having a negative refractive power;
- a third lens having a positive refractive power;
- a fourth lens having a positive refractive power;
- a fifth lens having a positive refractive power;
- a sixth lens having a negative refractive power;
- a seventh lens having a positive refractive power;
- wherein the camera lens satisfies the following conditions:
- -
- 1
- .
- 3
-
- 0
- ≤
- f
-
- 1
- /
- f
- ≤
- -
- 1.
- ;
- 0.02
- ≤
- d
-
- 4
- /
- TTL
- ≤
- 0
- .06
- ;
- n
-
- 2
- ≥
- 1.7
- ;
- 0.1
- ≤
- BFL
- /
- TTL
- ≤
- 0
- .30
- ;
- where,
- f represents a focal length of the camera optical lens;
- f1 represents a focal length of the first lens;
- d4 represents a distance on axis between an image side surface of the second lens and an object side surface of the third lens;
- TTL represents a total track length of the camera optical lens;
- nd2 represents a refractive index of the second lens;
- BFL represents a distance on axis between an image side surface of the seventh lens and an image surface.
Dependencies are inferred from the claim text.