Laser scanning apparatus using a fan style grating plate

Details Laser scanning apparatus using a fan style grating plate Laser scanning apparatus using a fan style grating plate

1986-12-15

1988-08-02

Broome, Harold

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, 358293, 250237G, 250237R, H04N 718

Patent

active

047616601

ABSTRACT:
A laser scanner apparatus using a laser reference beam that is directed to and scans a grating plate which is used for producing a data clock for the apparatus. The grating plate has a line grating formed by a plurality of lines that are equally spaced along the scan of the grating plate by the laser reference beam. The plurality of lines, if extended, intersect at a single point. The grating plate can have more than one such line grating.

REFERENCES:
patent: 4413270 (1983-11-01), Sprague
patent: 4578577 (1986-03-01), Noguchi
patent: 4600837 (1986-07-01), DiStefano et al.
patent: 4616132 (1986-10-01), Kessler

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