The present invention discloses a camera lens composed of five ultrathin and high-luminous flux wide angle lenses with excellent optical properties. The lenses are lined up in turn from the object side 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. The camera lens meets specific conditions.
1. A camera lens, comprising, lined up in turn from the object 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 satisfying the following specific conditions:
0.80≦ f 1/ f≦ 1.00
−5.00≦ f 3/ f≦ −3.00
−0.80≦( R 1 +R 2)/( R 1 −R 2)≦−0.30
0.05≦( R 3+ R 4)/( R 3 −R 4)≦0.40
0.25≦ d 7/ f≦ 0.35
where, f is the overall focal distance of the camera lens;
f 1 is the focal distance of the first lens;
f 3 is the focal distance of the third lens;
R 1 is the object side curvature radius of the first lens;
R 2 is the image side curvature radius of the first lens;
R 3 is the object side curvature radius of the second lens;
R 4 is the image side curvature radius of the second lens;
d 7 is the center thickness of the fourth lens.
2. The camera lens as described in claim 1 further satisfying the following specific condition:
−3.00≦ f 2/ f≦− 1.50
where, f is the overall focal distance of the camera lens, and f 2 is the focal distance of the second lens.
3. The camera lens as described in claim 1 further satisfying the following specific condition:
0.855≦ f 1/ f≦ 50.95.
4. The camera lens as described in claim 1 further satisfying the following specific condition:
−4.00≦ f 3/ f≦− 3.00.
5. The camera lens as described in claim 1 further satisfying the following specific condition:
−0.65≦( R 1+ R 2)/( R 1− R 2)≦−0.40.
6. The camera lens as described in claim 1 further satisfying the following specific condition:
0.10≦( R 3+ R 4)/( R 3− R 4)≦0.25.