Scanner illuminator systems and methods

Details Scanner illuminator systems and methods Scanner illuminator systems and methods

2004-12-09

2009-06-09

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S471000, C358S474000, C358S497000

Reexamination Certificate

active

07545543

ABSTRACT:
A scanner includes an illuminator and a platen adapted to support a document to be scanned. A light source directs light into the platen and the light is reflected internally within the platen. A movable light sensor is positioned adjacent the platen. Liquid crystal sections between the document and the light sensor cause a zone of light to pass from the platen to the document, thereby illuminating only a portion of the document.

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