CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 13/04 (2013.01); G02B 13/06 (2013.01)] | 10 Claims |
1. 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 positive refractive power;
a fourth lens having a negative refractive power;
a fifth lens having a refractive power;
a sixth lens having a positive refractive power; and
a seventh lens having a negative refractive power,
wherein the camera optical lens satisfies following conditions:
2.90≤v1/v2≤4.50;
4.00≤f3/f≤10.00;
1.50≤d1/d2≤4.00; and
3.00≤R7/R8,
where f denotes a focal length of the camera optical lens, f3 denotes a focal length of the third lens, v1 denotes an abbe number of the first lens, v2 denotes an abbe number of the second lens, R7 denotes a curvature radius of an object side surface of the fourth lens, R8 denotes a curvature radius of an image side surface of the fourth lens, d1 denotes an on-axis thickness of the first lens, and d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens.
|