A camera lens includes, lined up from the object side to the 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, and a sixth lens with positive refractive power. The camera lens satisfies specific conditions.
1. A camera lens comprising, lined up from the object side to the 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, and a sixth lens with positive refractive power, wherein
the camera lens satisfies the following conditions (1)-(4):
−2.00 f 2/ f− 1.40 (1)
−10.00< f 3/ f− 4.50 (2)
1.80<( R 3+ R 4)/( R 3− R 4)<4.00 (3)
−15.00<( R 5+ R 6)/( R 5− R 6)<−4.00 (4)
In which:
f: Overall focal distance of the lenses
f 2 : The focal distance of the second lens L 2
f 3 : The focal distance of the third lens L 3
R 3 : The curvature radius of the object side of the second lens L 2
R 4 : The image side curvature radius of the second lens L 2
R 5 : The image side curvature radius of the third lens L 3
R 6 : The image side curvature radius of the third lens L 3 .
2. The camera lens according to claim 1 further satisfying the following conditions (5)-(6):
0.72< f 1/ f< 0.85 (5)
−1.80<( R 1+ R 2)/( R 1− R 2)<−0.90 (6)
In which:
f: Overall focal distance of the lenses
f 1 : The focal distance of the first lens L 1
R 1 : The object side curvature radius of the first lens L 1
R 2 : The image side curvature radius of the first lens L 1 .
3. The camera lens according to claim 1 further satisfying the following condition (7):
2.00≦ f 4/ f≦ 10.00 (7)
In which:
f: Overall focal distance of the lenses
f 4 : The focal distance of the fourth lens L 4 .