Laser beam recording system

Details Laser beam recording system Laser beam recording system

1980-07-14

1982-07-20

Hartary, Joseph W.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358302, G01D 1514

Patent

active

043408940

ABSTRACT:
In a laser beam recording system in which a laser beam is modulated by an acousto-optic modulator and the zero-order diffraction light beam is used to scan a recording material two-dimensionally for recording information, the zero-order diffraction light beam is vertically deflected to a light shielding mask located outside the recording area in the non-recording period. Thus, the horizontal scanning line is moved to the light shielding mask during the non-recording period and the recording material is prevented from being exposed to the attenuated zero-order diffraction light beam.

REFERENCES:
patent: 4040737 (1977-08-01), Masaki et al.
patent: 4044363 (1977-08-01), Morgan
patent: 4109256 (1978-08-01), Ohnishi
patent: 4125842 (1978-11-01), Ohnishi et al.

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