Kyocera Corporation

Nobuaki Murai

Takayoshi Morooka

Mamoru Akiyama

Toshikatsu Atsuta

Hirotaka Shiroshita

Masao Tsujimura

Seiji Yoshikawa

Kazuo Ishikawa

Masaki Noda

Masamichi Hirooka

A constant speed driving apparatus comprises a starting means for starting a control unit, the first pulse-generating means for generating the first pulse signal with a predetermined frequency, a driving mechanism for driving a load, the second pulse-generating means for generating the second pulse signal corresponding to driving speed of the driving mechanism, and the control unit for controlling the driving mechanism on the basis of the first and second pulse signals.

Apparatus for controlling the adjustment rate of a lens assembly

An autofocus camera has a photographing lens, a shutter normally urged in a shutter opening direction and arranged to be opened and closed after it has once been closed prior to a photographing operation, a mirror movable between a view position which allows light passing through the lens and the shutter to be transmitted to a viewfinder optical system and an exposure position which allows light passing through the photographing lens and the shutter to be transmitted to the surface of a film, and an automatic focus adjustment apparatus for automatically adjusting the position of the lens. The autofocus camera has a motor-drive control circuit arranged to close the shutter prior to a photographing operation, move the mirror from the view position to the exposure position, cause the shutter to be opened and closed for exposure of the film, cause the film to be wound immediately after completion of the operation of the shutter, move the mirror from the exposure position to the view position, cause the shutter to be opened after the winding of the film has temporarily been stopped, and restart the winding of the film.

Autofocus camera having automatic focus adjustment apparatus

Growing community of inventors

Nagano, Japan

Nobuaki Murai