Patent ID: 7746562

Claim:
A zoom lens comprising, in order from an object side, a first lens component with positive refracting power, a second lens component with negative refracting power, a third lens component with positive refracting power, a fourth lens component with positive refracting power, and a fifth lens component with positive refracting power, wherein a magnification is changed by properly changing distances between the lens components, and the first lens component comprises a reflecting member reflecting an optical path to satisfy the following conditions: 1.6<β 2 ( t )/β 2 ( w )<10.0 3.3<β 4 ( t )/β 4 ( w )<10.0 where β 2 (t) is a lateral magnification of the second lens component in a telephoto position in infinite focusing, β 2 (w) is a lateral magnification of the second lens component in a wide-angle position in infinite focusing, β 4 (t) is a lateral magnification of the fourth lens component in a telephoto position in infinite focusing, and β 4 (w) is a lateral magnification of the fourth lens component in a wide-angle position in infinite focusing.