CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 27/0025 (2013.01)] | 11 Claims |
1. A camera optical lens comprising eight lenses, 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 negative refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power, a seventh lens, and an eighth lens having a negative refractive power; wherein the camera optical lens satisfies the following conditions:
0.95≤f/TTL;
−4.00≤f2/f≤−1.80; and
−20.00≤(R15+R16/(R15−R16)≤−3.00;
where
TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis;
f denotes a focal length of the camera optical lens;
f2 denotes a focal length of the second lens;
R15 denotes a central curvature radius of an object-side surface of the eighth lens; and
R16 denotes a central curvature radius of an image-side surface of the eighth lens.
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