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, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material, and the seventh lens is made of plastic material. 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, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a positive refractive power, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power; wherein the camera optical lens further satisfies the following conditions:
1< f 1/ f< 1.5;
1.70< n 1<2.2;
−2< f 3/ f 4<2;
−10<( R 13+ R 14)/( R 13− R 14)<10;
0.01< d 1/ TTL< 0.05;
where
f: the focal length of the camera optical lens;
f1: the focal length of the first lens;
f3: the focal length of the third lens;
f4: the focal length of the fourth lens;
n1: the refractive power of the first lens;
d1: the thickness on-axis of the first lens;
TTL: the total optical length of the camera optical lens;
R13: the curvature radius of object side surface of the seventh lens;
R14: the curvature radius of image side surface of the seventh lens.
2. The camera optical lens as described in claim 1 , wherein the first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material, the seventh lens is made of plastic material.
3. The camera optical lens as described in claim 1 further satisfying the following conditions:
1.5 <f 1<5;
−15 <f 2<−4;
−15 <f 3<−7.5;
2 <f 4<8;
20 <f 5<50;
5 <f 6<10;
−6 <f 7<−1; where
f1: the focal length of the first lens;
f2: the focal length of the second lens;
f3: the focal length of the third lens;
f4: the focal length of the fourth lens;
f5: the focal length of the fifth lens;
f6: the focal length of the sixth lens;
f7: the focal length of the seventh lens.
4. The camera optical lens as described in claim 1 , further satisfying the following conditions:
1.60< n 2<1.70;
1.60< n 3<1.70;
1.50< n 4<1.65;
1.50< n 5<1.65;
1.50< n 6<1.65;
1.50< n 7<1.65; where
n2: the refractive power of the second lens;
n3: the refractive power of the third lens;
n4: the refractive power of the fourth lens;
n5: the refractive power of the fifth lens;
n6: the refractive power of the sixth lens;
n7: the refractive power of the seventh lens.
5. The camera optical lens as described in claim 1 further satisfying the following conditions:
40< v 1<65;
15< v 2<30;
15< v 3<30;
40< v 4<65;
40< v 5<65;
40< v 6<65;
40< v 7<65; where
v1: The abbe number of the first lens;
v2: The abbe number of the second 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;
v6: The abbe number of the sixth lens;
v7: The abbe number of the seventh lens.