Optical camera lens

1. An optical camera lens, from an object side to an image side, successively comprising:

an aperture;

a first lens having positive refraction power;

a second lens having negative refraction power;

a third lens having negative refraction power;

a fourth lens having positive refraction power; and

a fifth lens having negative refraction power;

wherein a focal length of the integral optical camera lens is f, a focal length of the first lens is f 1 , a focal length of the second lens is f 2 , a focal length of the third lens is f 3 , a focal length of the fourth lens is f 4 and a focal length of the fifth lens is f 5 , which satisfy following relational expressions:

0.70< f 1/ f< 0.80;

−1.9< f 2 /f<− 1.7;

−18< f 3/ f<− 13;

0.59< f 4 /f< 0.63;

−0.52< f 5/ f<− 0.48;

wherein an abbe number of the third lens is v 3 , a refractive index of the third lens is n 3 , a refractive index of the fifth lens is n 5 , a thickness of the third lens is d 5 , a total track length of the optical camera lens is TTL, which satisfy following relational expressions:

17< v 3/ n 3<20;

1.08< n 3/ n 5<1.20;

0.03< d 5/TTL<0.04;

1.08<( f 3− f 4)/( f 3+ f 4)<1.10.

2. The optical camera lens as described in claim 1 , wherein the focal length f 1 of the first lens, the focal length f 2 of the second lens, the focal length f 3 of the third lens, the focal length f 4 of the fourth lens and the focal length f 5 of the fifth lens satisfy following relational expressions, respectively:

2.7<f1<3.0;

−7.3< f 2<−6.8;

−66< f 3<−53;

2.2<f4<2.4;

−2.1< f 5<−1.9.

3. The optical camera lens as described in claim 1 , wherein the refractive index n 3 of the third lens satisfies following relational expression: n 3 >1.67.

4. The optical camera lens as described in claim 3 , wherein a refractive index n 1 of the first lens, a refractive index n 2 of the second lens, the refractive index n 3 of the third lens, a refractive index n 4 of the fourth lens and the refractive index n 5 of the fifth lens satisfy following relational expressions, respectively:

1.50<n1<1.55;

1.63<n2<1.68;

1.68<n3<1.72;

1.52<n4<1.56;

1.52<n5<1.55.

5. The optical camera lens as described in claim 1 , wherein an abbe number v 1 of the first lens, an abbe number v 2 of the second lens, the abbe number v 3 of the third lens, an abbe number v 4 of the fourth lens and an abbe number v 5 of the fifth lens satisfy following relational expressions, respectively:

52<v1<62;

20<v2<24;

30<v3<32;

48<v4<58;

53<v5<63.

6. The optical camera lens as described in claim 5 , wherein the abbe number v 1 of the first lens, the abbe number v 3 of the third lens satisfy following relational expression:

18< V 1 −V 3<28.

7. The optical camera lens as described in claim 1 , wherein the total track length of the optical camera lens is less than or equal to 4.45 mm.

8. The optical camera lens as described in claim 1 , wherein the optical camera lens satisfies following relational expression: 0.40<|f 1 /f 2 |<0.42.

9. The optical camera lens as described in claim 1 , wherein the third lens is a glass lens, other lenses are plastic lenses.