Light beam scanning apparatus

Details Light beam scanning apparatus Light beam scanning apparatus

1985-03-29

1990-12-04

Arnold, Bruce Y.

350353, G02F 133

Patent

active

049749439

ABSTRACT:
A light beam scanning apparatus comprises an ultrasonic light deflector for diffracting a light beam of a predetermined wavelength, and a reflecting mirror positioned approximately normal to light deflected by the ultrasonic light deflector for reflecting the deflected light and making it again impinge upon the ultrasonic light deflector.

REFERENCES:
patent: 3492063 (1970-01-01), Lee
patent: 3634749 (1972-01-01), Montgomery
patent: 3799652 (1974-03-01), Torguet
patent: 4164717 (1979-08-01), Blazey
patent: 4243293 (1981-01-01), Kramer
patent: 4400063 (1983-08-01), Hayashida
patent: 4443066 (1984-04-01), Freyre

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