Optical read-out system including asymetrical beam intensity and

Optical read-write system with electronically variable image siz

Optical reader

Optical Reader

Optical reader

Optical reader

Optical reader and light source used for the same

Optical reader having apparatus for discrimination between dithe

Optical reader having reduced parameter determination delay

Optical reader head with video compensation method and circuit w

Optical reader head with video compensation method and circuit w

Optical reading apparatus

Optical reading apparatus

Optical reading apparatus and image forming apparatus

Optical reading apparatus with scanner light intensity control

Optical reading device comprising a focussing detection device

Optical reading device for reading an information carrier with m

Optical reading device of scanning apparatus

Optical reading document board and optical reader

Optical record playback apparatus employing light frequency at w