Optical camera lens

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

a first lens having negative refraction power;

a second lens having positive refraction power;

an aperture;

a third lens having positive refraction power;

a fourth lens having negative refraction power;

a fifth lens having positive refraction power; and

a sixth 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 f1, a focal length of the second lens is f2, a focal length of the third lens is f3, a focal length of the fourth lens is f4, a focal length of the fifth lens is f5 and a focal length of the sixth lens is f6, which satisfy following relational expressions:

−2.5< f 1/ f<− 1.0;

2.7< f 2/ f< 2.2;

1< f 3/ f< 2;

−3.1< f 4/ f<− 1.2;

0.98< f 5/ f< 1.1;

−2.4< f 6/ f<− 1.9.

2. The optical camera lens as described in claim 1 , wherein the focal length f1 of the first lens, the focal length f2 of the second lens, the focal length f3 of the third lens, the focal length f4 of the fourth lens, the focal length f5 of the fifth lens and the focal length f6 of the sixth lens satisfy following relational expressions, respectively:

−3.5< f 1<−2.2;

3.1< f 2<4.1;

1.5< f 3<2.3;

−3.1< f 4<−1.8;

1.1< f 5<2.3;

−3.5< f 6<−2.1.

3. The optical camera lens as described in claim 1 , wherein a refractive index n1 of the first lens, a refractive index n2 of the second lens, a refractive index n3 of the third lens, a refractive index n4 of the fourth lens, a refractive index n5 of the fifth lens and a refractive index n6 of the sixth lens satisfy following relational expressions, respectively:

1.50< n 1<1.55;

1.50< n 2<1.55;

1.50< n 3<1.55;

1.60< n 4<1.70;

1.50< n 5<1.55;

1.50< n 6<1.55.

4. The optical camera lens as described in claim 1 , wherein an abbe number v1 of the first lens, an abbe number v2 of the second lens, an abbe number v3 of the third lens, an abbe number v4 of the fourth lens, an abbe number v5 of the fifth lens and an abbe number v6 of the sixth lens satisfy following relational expressions, respectively:

40< v 1<60;

40< v 2<60;

40< v 3<60;

15< v 4<30;

40< v 5<60;

40< v 6<60.

5. The optical camera lens as described in claim 1 , wherein an aperture value F of the optical camera lens is less than 2.5.