High speed scanning device for scanning the same area plural tim

Details High speed scanning device for scanning the same area plural tim High speed scanning device for scanning the same area plural tim

1978-05-04

1980-08-05

Henry, Jon W.

350 691, G02B 2717

Patent

active

042159121

ABSTRACT:
A scanning optical system with an improved scanning efficiency wherein a deflection space swept by a beam deflected by a deflecting surface of a deflecting device is divided into plural spatial zones, each of said divided spatial zones is provided with a transmission optical system for guiding the beam passing through each spatial zone to a scanned surface, and the beam scans said surface after passing through said transmission optical system is adapted to scan a same scan area whereby said same scan area is scanned plural times by the beam deflected by a single deflecting surface.

REFERENCES:
patent: 3728677 (1973-04-01), Munson
patent: 3972583 (1976-08-01), Lobb

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