Minolta Camera Kabushiki Kaisha

Hiroaki Nakauchi

Akiyoshi Hamada

Toshihiko Ueda

Nobuo Kanai

Hiromu Nakamura

Haruhiro Hyodo

Muneo Kuroda

Kazuyuki Yoshida

Shinichi Mori

Keijiro Sakamoto

A lens barrel having a movable barrel with a first cam channel, a fixed barrel with a second cam channel, a lens holding frame and a cam follower fitted in each of the first and second cam channels and fixed onto the lens holding member. The cam follower is made of elastic material and has a contact portion formed on the peripheral surface thereof so as to be in elastically pressing contact with one of the movable barrel, the fixed barrel and the lens holding member.

Lens position correction device

A focusing device for use in micro film readers or the like for projecting micro images to give in-focus conditon exactly and readily. The present device includes a memory for storing a distance data representing the distance between an original and a projective lens at in-focus position thereof, and a sensor for measuring the distance between an original and the projective lens wherein the projective lens is moved to the in-focus position by a focusing motor in response to the distance data stored in the memory and a signal representing the measured distance generated from the sensor.

Focusing device for use in optical apparatuses

A slit exposure type copying machine capable of copying with anamorphic magnification. The degree of the refractive action of at least one triangular prism is so set as to compensate for the difference between the magnification of projection means and the magnification corresponding to the speed of scanning means.

Slit exposure type copying machine capable of copying with anamorphic

Growing community of inventors

Toyokawa, Japan

Hiroaki Nakauchi