Camera optical lens
The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, a first lens, an aperture, a second lens, a third lens, a fourth lens, and a fifth lens. The camera optical lens further satisfies specific conditions.
1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens having a positive refractive power, an aperture, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power; wherein the camera optical lens further satisfies the following conditions:
1<f1/f<1.55;
1<f2/f<1.55;
1<(R3+R4)/(R3−R4)<4;
1.75<n2<2.2;
35<v2<45;
0.05<d3/TTL<0.1;
0.05<d2/TTL<0.1;
0.005<d4/TTL<0.01;
where
f: the focal length of the camera optical lens;
f1: the focal length of the first lens;
f2: the focal length of the second lens;
R3: the curvature radius of object side surface of the second lens;
R4: the curvature radius of image side surface of the second lens;
n2: the refractive index of the second lens;
v2: the abbe number of the second lens L 2 ;
d3: the thickness on-axis of the second lens L 2 ;
d2: the distance on-axis from the image side surface of the first lens L 1 to the object side surface of the second lens L 2 ;
d4: the distance on-axis from the image side surface of the second lens L 2 to the object side surface of the third lens L 3 ;
TTL: the total optical length of the camera optical lens.
2. The camera optical lens as described in claim 1 further satisfying the following conditions:
1<f1/f<1.5;
1<f2/f<1.5;
−3<f3/f<−1;
0.5<f4/f<2;
−2<f5/f<−0.5; where
f3: the focal length of the third lens;
f4: the focal length of the fourth lens;
f5: the focal length of the fifth lens.
3. The camera optical lens as described in claim 1 , further satisfying the following conditions:
1.5<n1<1.65;
1.5<n3<1.7;
1.5<n4<1.7;
1.5<n5<1.7; where
n1: the refractive index of the first lens;
n3: the refractive index of the third lens;
n4: the refractive index of the fourth lens;
n5: the refractive index of the fifth lens.
4. The camera optical lens as described in claim 1 further satisfying the following conditions:
40<v1<65;
15<v3<30;
15<v4<30;
15<v5<30; where
v1: The abbe number of the first lens;
v3: The abbe number of the third lens;
v4: The abbe number of the fourth lens;
v5: The abbe number of the fifth lens.