Camera optical lens
The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens satisfies following conditions: 62.00<R7/f4<70.00; 0.10<R1/R2<0.40; and −0.50<R3/R4<−0.30, where f4 denotes a focal length of the fourth lens; R1 denotes a curvature radius of an object side surface of the first lens; R2 denotes a curvature radius of an image side surface of the first 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; and R7 denotes a curvature radius of an object side surface of the fourth lens.
1. A camera optical lens, comprising, from an object side to an image side:
an aperture;
a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens having a positive refractive power; and
a fourth lens having a negative refractive power, wherein the camera optical lens satisfies following conditions:
62.00< R 7/ f 4<70.00;
0.10< R 1/ R 2<0.40;
and
−0.50< R 3/ R 4<−0.30,
where
f4 denotes a focal length of the fourth lens;
R1 denotes a curvature radius of an object side surface of the first lens;
R2 denotes a curvature radius of an image side surface of the first 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; and
R7 denotes a curvature radius of an object side surface of the fourth lens.
2. The camera optical lens as described in claim 1 , further satisfying a following condition:
10.00< R 5/ R 6<30.00,
where
R5 denotes a curvature radius of an object side surface of the third lens; and
R6 denotes a curvature radius of an image side surface of the third lens.
3. The camera optical lens as described in claim 1 , further satisfying a following condition:
0.60< d 5/ f 3<0.68,
where
f3 denotes a focal length of the third lens; and
d5 denotes an on-axis thickness of the third lens.