Camera lens
A camera lens is disclosed. The camera lens includes a first lens with positive refractive power; a second lens with negative refractive power; a third lens with positive refractive power; a fourth lens with negative refractive power; and a fifth lens with negative refractive power. The camera lens further satisfies specific conditions.
1. A camera lens comprising, arranged sequentially 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 positive refractive power;
a fourth lens with negative refractive power; and
a fifth lens with negative refractive power; wherein the camera lens satisfies following conditions (1)˜(3):
0.30≦ f 1/ f≦ 0.50 (1)
−4.00≦( R 5+ R 6)/( R 5− R 6)≦−0.10 (2)
−3.50≦( R 9+ R 10)/( R 9− R 10)≦−1.50 (3)
where,
f: overall focal distance of the camera lens;
f1: focal distance of the first lens;
R5: curvature radius of the third lens' object side surface;
R6: curvature radius of the third lens' image side surface;
R9: curvature radius of the fifth lens' object side surface;
R10: curvature radius of the fifth lens' image side surface.
2. The camera lens as described in claim 1 further satisfying following condition (4):
−1.00 f 2/ f≦− 0.50 (4)
where,
f: overall focal distance of the camera lens;
f2: focal distance of the second lens.
3. The camera lens as described in claim 1 further satisfying following condition (5):
1.20≦ f 3/ f≦ 3.50 (5)
where,
f: overall focal distance of the camera lens;
f3: focal distance of the third lens.
4. The camera lens as described in claim 1 further satisfying following condition (6):
−2.50≦ f 4/ f≦− 1.00 (6)
where,
f: overall focal distance of the camera lens;
f4: focal distance of the fourth lens.
5. The camera lens as described in claim 1 further satisfying following condition (7):
−2.50≦ f 5/ f≦− 1.00 (7)
where,
f: overall focal distance of the camera lens;
f5 focal distance of the fifth lens.