Camera lens
A camera lens is disclosed. The camera lens includes seven piece ultra-thin and high-luminous flux wide angle lenses with excellent optical properties as follows: a first lens with positive refractive power; a second lens with negative refractive power; a third lens with negative refractive power; a fourth lens with positive refractive power; a fifth lens with positive refractive power; a sixth lens with positive or negative refractive power, and a seventh lens with negative refractive power which are arranged in an order from an object side to an image side. The camera lens satisfies specified conditions.
1. A camera lens, comprising in order from an object side to an image side:
a first lens with positive refractive power;
a second lens with negative refractive power;
a third lens with negative refractive power;
a fourth lens with positive refractive power;
a fifth lens with positive refractive power;
a sixth lens with positive or negative refractive power;
a seventh lens with negative refractive power; wherein
the camera lens satisfying the following conditions (1)˜(3):
0.02≤ R 1/ R 2≤1.00 (1);
3.00≤ R 9/ R 10≤15.00 (2);
0.50≤ R 11/ R 12≤1.20 (3);
where,
R 1 : curvature radius of the first lens' object side surface;
R 2 : curvature radius of the first lens' image side surface;
R 9 : curvature radius of the fifth lens' object side surface;
R 10 : curvature radius of the fifth lens' image side surface;
R 11 : curvature radius of the sixth lens' object side surface;
R 12 : curvature radius of the sixth lens' image side surface.
2. The camera lens as described in claim 1 further satisfying the following conditions (4)˜(6):
18.00≤ν2≤32.00 (4);
18.00≤ν3≤32.00 (5);
18.00≤ν6≤32.00 (6);
where,
ν 2 : abbe number of the second lens;
ν 3 : abbe number of the third lens;
ν 6 : abbe number of the sixth lens.