Camera optical lens
AssigneeAAC Optics (Suzhou) Co., Ltd.
InventorZhanli Guo
Life of this patent
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Abstract
The present invention discloses a camera optical lens including, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, and a fifth lens having a refractive power. The camera optical lens satisfies the following conditions: 8.00≤f, 0.90≤f/TTL, 0.40≤f1/f≤0.85, −1.10≤f3/f4≤−0.40, and 0.30≤d2/d4≤2.00. The camera optical lens has large aperture, long focal length and small distortion.
Claims9
A camera optical lens, comprising, from an object side to an image side in sequence:
- a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, and a fifth lens having a refractive power;
- wherein the camera optical lens satisfies the following conditions:
- 8.00≤f;
- 0.90≤f/TTL;
- 0.40≤f1/f≤0.85;
- −1.10≤f3/f4≤−0.40;
- 0.30≤d2/d4≤2.00;
- and
- 9.00≤R6/R5≤30.00;
- where,
- f:
- a focal length of the camera optical lens;
- f1:
- a focal length of the first lens;
- f3:
- a focal length of the third lens;
- f4:
- a focal length of the fourth lens;
- TTL:
- a total optical length from the object side surface of the first lens of the camera optical lens to an image surface of the camera optical lens along an optical axis;
- d2:
- an on-axis distance from an image side surface of the first lens to an object side surface of the second lens;
- d4:
- an on-axis distance from an image side surface of the second lens to an object side surface of the third lens;
- R5:
- a central curvature radius of the object side surface of the third lens;
- and
- R6:
- a central curvature radius of an image side surface of the third lens.
Dependencies are inferred from the claim text.