CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 27/0025 (2013.01)] | 9 Claims |
1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens;
wherein the camera optical lens satisfies following conditions:
0.95≤f/TTL;
−3.50≤f2/f≤−1.80;
2.00≤f4/f≤7.00; and
2.50≤(R5+R6)/(R5−R6)≤20.00;
where
f denotes a focal length of the camera optical lens;
f2 denotes a focal length of the second lens;
f4 denotes a focal length of the fourth lens;
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;
R5 denotes a central curvature radius of an object-side surface of the third lens; and
R6 denotes a central curvature radius of an image-side surface of the third lens.
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