Facet tracking in laser scanning

Details Facet tracking in laser scanning Facet tracking in laser scanning

1977-04-06

1979-10-02

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

250236, 350 67, 358293, H04N 308, H04N 310

Patent

active

041700287

ABSTRACT:
Method and apparatus for improving the efficiency of laser scanning systems using a multi-faceted rotating polygon as the scanner device. In particular, an acousto-optic Bragg cell is utilized as an active optical element to both modulate and deflect an incident laser beam so that the modulated beam is caused to follow one facet of the scanner during a complete scan and to shift to the adjacent facet for the following scan.

REFERENCES:
patent: 3055258 (1962-09-01), Hurvitz
patent: 3597536 (1971-08-01), Fowler
patent: 3646568 (1972-02-01), Woywood
patent: 3751587 (1973-08-01), Insler
patent: 3910675 (1975-10-01), MacGovern
patent: 3997722 (1976-12-01), Bardos
patent: 4002830 (1977-01-01), Brown et al.
patent: 4037231 (1977-07-01), Broyles et al.
patent: 4103156 (1978-07-01), Masaki et al.

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