CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01)] | 11 Claims |
1. A camera optical lens, comprising from an object side to an image side:
a first lens having positive refractive power;
a second lens having positive refractive power;
a third lens having positive refractive power;
a fourth lens having positive refractive power;
a fifth lens having negative refractive power;
a sixth lens;
a seventh lens having negative refractive power;
an eighth lens having positive refractive power; and
a ninth lens having negative refractive power, wherein the camera optical lens satisfies:
3.50≤f1/f≤5.00; and
2.50≤d3/d4≤10.00,
where
f denotes a focal length of the camera optical lens,
f1 denotes a focal length of the first lens,
d3 denotes an on-axis thickness of the second lens, and
d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens.
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