CPC G02B 13/0045 (2013.01) [G02B 9/60 (2013.01); G02B 27/0025 (2013.01)] | 10 Claims |
1. A camera optical lens, comprising from an object side to an image side:
a first lens having negative refractive power;
a second lens having positive 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:
−3.00≤f1/f2≤−1.50;
1.80≤d3/d4≤4.00;
2.50≤R7/R8≤6.00; and
f3/f≤−5.00,
where
f denotes a 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;
d3 denotes an on-axis thickness of the second 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;
R7 denotes a central curvature radius of an object side surface of the fourth lens; and
R8 denotes a central curvature radius of an image side surface of the fourth lens.
|