Compact optical scanning system

Photocopying – Including fiber optics

Patent

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Details

355 11, 355 66, G03G 1528

Patent

active

044075812

ABSTRACT:
A compact scan document system is enabled by adding motion to the scanning and projection components used in a folded optical system. A general and preferred velocity relationship is set for the system optical elements and a mechanical drive arrangement is disclosed which enable the specific ratios required.
In a preferred embodiment, a pulley/belt system is used to provide four velocities such that a document is scanned at a first velocity V, the document image is reflected to a folding mirror arrangement traveling at 0.75 V and projected by a lens moving at a 0.5 V velocity to a photoreceptor image plane via another folding mirror arrangement moving at a 0.25 V ratio.

REFERENCES:
patent: 3832057 (1974-08-01), Shogren
patent: 4095880 (1978-06-01), Shogren et al.
patent: 4113373 (1978-09-01), Eppe et al.
patent: 4118118 (1978-10-01), Barto
patent: 4299475 (1981-11-01), Nagahara

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