Illumination system for a flat-bed scanning system

Details Illumination system for a flat-bed scanning system Illumination system for a flat-bed scanning system

1995-06-29

1997-12-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358474, 358487, 358494, 358497, H04N 104

Patent

active

056966091

ABSTRACT:
A scanning apparatus providing separate fixed object focal planes for transmissive and reflective original documents to be scanned, wherein a scan carriage containing illumination, sensor, and optical elements is moved together to scan an original document and to obtain a digitized representation thereof. The movable scan carriage has an illumination source disposed between the reflective and transmissive object focal planes, with the object focal plane to be used selected by changing the position of one or more optical elements within the scan carriage. The illumination source comprises a removable lamp cartridge with one or more lamps disposed for correct illumination of the selected object focal plane.

REFERENCES:
patent: 4882631 (1989-11-01), Mine et al.
patent: 5038028 (1991-08-01), Boyd et al.
patent: 5140443 (1992-08-01), Iwahara et al.
patent: 5455486 (1995-10-01), Tobler
patent: 5574274 (1996-11-01), Rubley et al.

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