Galvanometric optical scanning system having synchronization pho

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

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Details

350 66, 350 691, 358293, H01J 314

Patent

active

048002712

ABSTRACT:
A galvanometric optical scanning system is disclosed. In order to compensate errors in phase, zero drift etc., at least two synchronization photodetector means are provided in an optical path of scanning beam of light. The pulses produced by the photodetector means are processed to generate correction signals for various commpensations.

REFERENCES:
patent: 4214154 (1980-07-01), Sato
patent: 4350988 (1982-09-01), Masegi
patent: 4686363 (1987-08-01), Schoon
patent: 4700066 (1987-10-01), Horikawa

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