Camera optical lens
AssigneeAAC Optics (Suzhou) Co., Ltd.
InventorRongbao Shi
Life of this patent
Estimating the term…
Abstract
A camera optical lens is provided, including from an object side to an image side: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power. The camera optical lens satisfies following conditions: −3.50≤f2/f1≤−2.00; 1.00≤(R7+R8)/(R7−R8)≤5.00; f3/f≤−12.00; −2.50≤R10/R9≤−0.80; 2.00≤d7/d8≤3.20; and 0.70≤d4/d6≤1.15. The above camera optical lens may meet design requirements for large aperture, wide angle and ultra-thinness, while maintaining a high imaging quality.
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 negative refractive power;
- a third lens having negative refractive power;
- a fourth lens having positive refractive power;
- and
- a fifth lens having negative refractive power,
- wherein the camera optical lens satisfies following conditions:
- −3.50≤f2/f1≤−2.00;
- 1.00≤(R7+R8)/(R7−R8)≤5.00;
- f3/f≤−12.00;
- −2.50≤R10/R9≤−0.80;
- 2.00≤d7/d8≤3.20;
- and
- 0.70≤d4/d6≤1.15,
- where
- f denotes a total focal length of the camera optical lens,
- f1 denotes a focal length of the first lens;
- f2 denotes a focal length of the second lens;
- f3 denotes a focal length of the third lens;
- d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens;
- d6 denotes an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens;
- d7 denotes an on-axis thickness of the fourth lens;
- d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of the fifth lens;
- R7 denotes a central curvature radius of the object side surface of the fourth lens;
- R8 denotes a central curvature radius of the image side surface of the fourth lens;
- R9 denotes a central curvature radius of the object side surface of the fifth lens;
- and
- R10 denotes a central curvature radius of an image side surface of the fifth lens.
Dependencies are inferred from the claim text.