Compact optical scanning system

A compact scan document system is enabled by adding motion to the scanning and projection components used in a foided optical system. A general and preferred velocity relationship is set for the system optical elements and a mechanical drive arrangement is disclosed which enables the specific ratios...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHOGREN, DAVID KIRK, ZAMBELLI, ROBERT GENE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A compact scan document system is enabled by adding motion to the scanning and projection components used in a foided optical system. A general and preferred velocity relationship is set for the system optical elements and a mechanical drive arrangement is disclosed which enables the specific ratios required.In a preferred embodiment, a pulley/belt system is used to provide four velocities such that a document (10) is scanned by a first mirror (20) moving at a first velocity V, the document image is reflected to a folding mirror arrangement (26) traveling at .75V and projected by a lens (32) moving at .5V to a photoreceptor image plane (42) via another folding mirror arrangement (34) moving at .25V.