Camera lens
A camera lens is disclosed. The camera lens includes five piece ultra-thin and wide angle lenses with excellent optical properties and with chromatic aberration sufficiently corrected 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 negative refractive power which are arranged sequentially from an object side to an image side. The camera lens is characterized in that it meets specified conditions.
1. A camera lens comprising, in an 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 negative refractive power; wherein
the camera lens satisfies the following conditions (1)˜(6):
0.70≦ f 1/ f ≦0.80 (1);
−2.00≦ f 2/ f≦− 1.15 (2);
0.63≦ f 4/ f≦ 0.80 (3);
−2.00≦( R 1+ R 2)/( R 1− R 2)≦−1.25 (4);
1.30≦( R 3+ R 4)/( R 3− R 4)≦2.50 (5);
0.10≦ d 7/ f≦ 0.19 (6);
where,
f: overall focal distance of the camera lens;
f1: focal distance of the first lens;
f2: focal distance of the second lens;
f4: focal distance of the fourth lens;
R1: curvature radius of the first lens' object side surface;
R2: curvature radius of the first lens' image side surface;
R3: curvature radius of the second lens' object side surface
R4: curvature radius of the second lens' image side surface
d7: center thickness of the fourth lens.
2. The camera lens as described in claim 1 further satisfying the following condition (7):
10.00≦| f 3 |/f (7);
where,
f: overall focal distance of the camera lens;
f3: focal distance of the third lens.