CPC G02B 9/60 (2013.01) [G02B 13/0045 (2013.01); G02B 27/0025 (2013.01)] | 10 Claims |
1. A camera optical lens comprising five-piece lenses, from an object side to an image side, the five-piece lenses are:
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 negative refractive power;
wherein the camera optical lens satisfies following conditions:
0.65≤f1/f≤0.85;
1.20≤(R7+R8)/(R7−R8)≤1.75;
−40.00≤f3/f≤−20.00;
0.50≤d5/d6≤0.80; and
1.00≤d8/d9≤1.30;
where
f denotes a focal length of the camera optical lens;
f1 denotes a focal length of the first lens;
f3 denotes a focal length of the third 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;
d5 denotes an on-axis thickness of the third lens;
d6 denotes an on-axis distance from an image-side surface of the third lens to the object-side surface of the fourth lens;
d8 denotes an on-axis distance from the image-side surface of the fourth lens to an object-side surface of the fifth lens; and
d9 denotes an on-axis thickness of the fifth lens.
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