Optical path for a scanning system

Details Optical path for a scanning system Optical path for a scanning system

1995-06-29

1998-01-20

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358401, 358474, 358494, 358497, H04N 100, H04N 104

Patent

active

057106436

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 a single mirror by a linear distance equal to the separation between the two object focal planes.

REFERENCES:
patent: 4792858 (1988-12-01), Landsman
patent: 5341225 (1994-08-01), Stein et al.
patent: 5574274 (1996-11-01), Rubley et al.

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