| CPC G02B 13/0045 (2013.01) [G02B 9/62 (2013.01); G02B 13/06 (2013.01); H04N 23/55 (2023.01)] | 8 Claims |
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1. A camera optical lens, comprising, from an object side to an image side:
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 positive refractive power; and
a sixth lens having a negative refractive power,
wherein at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, or the sixth lens comprises a free-form surface, and
wherein the camera optical lens satisfies following conditions:
3.00≤v1/v2≤4.00;
−12.00≤f4/f≤−1.80;
−1.26≤(R3+R4)/(R3−R4)≤−0.6298;
2.23≤(R7+R8)/(R7−R8)≤22.34;
R9/R10≤−1.50; and
0.02≤d7/TTL≤0.08,
where
f denotes a focal length of the camera optical lens,
f4 denotes a focal length of the fourth lens,
R3 denotes a curvature radius of an object-side surface of the second lens,
R4 denotes a curvature radius of an image-side surface of the second 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,
R9 denotes a curvature radius of an object-side surface of the fifth lens,
R10 denotes a curvature radius of an image-side surface of the fifth lens,
d7 denotes an on-axis thickness of the fourth lens,
TTL denotes a total optical length from an object-side surface of the first lens to an image plane of the camera optical lens along an optic axis,
v1 denotes an abbe number of the first lens, and
v2 denotes an abbe number of the second lens.
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