Patent ID: 6519095
Filing Date: 2003-02-11
Classification: G02B

Abstract:
A zoom lens comprising, in order from an object side of the system, a positive first lens group, a positive second lens group and a negative third lens group, structured and arranged such that while each lens group moves from an image side of the system to the object side for zooming from a wide-angle end to a telephoto end of the system, the following conditions (1 and 6) are satisfied:LT/fT<0.65â€ƒâ€ƒ(1) 0.086W<0.15â€ƒâ€ƒ(6) where LT is a distance at the telephoto end from a front surface of the zoom lens system to an image formation position and fT is a focal length of the zoom lens system at the telephoto end, d is the distance between a second and a third lens, from the object side, in the second lens group and fW is the focal length of the zoom lens system at the wide-angle end.