Nippon Kogaku K.k.

Sachio Omori

Hitoshi Imanari

Hideshi Naito

Takeshi Muryoi

A zoom lens assembly comprises an optical system including, in succession from the object side, a stationary lens group, a first movable lens group, a second movable lens group and a third movable lens group, a stationary barrel for holding the stationary lens group, first, second and third movable barrel members disposed in the stationary barrel for sliding movement in the direction of the optical axis and holding the first, second and third movable lens groups, respectively, and lens driving means including means for sliding the first movable barrel member for focusing and means for sliding the second and third movable barrel members for zooming.

Growing community of inventors

Yokosuka, Japan

Sachio Omori