Unisys Corporation

David J Valice

Johan P Bakker

John D Vala

Clive E Catchpole

Gary B Copenhaver

David J Concannon

Robert Timothy Rourke

Paul Stolis

In a document processing array, an imaging/illumination arrangement for illuminating and imaging the documents at one or several imaging-sites as they are rapidly transported there-past, each site having, as its illumination source, a hollow Lambertian integrating cylinder housing lamps which project essentially all their light onto the inner cylinder walls to be reflected/diffused thereby in Lambertian fashion and sent to the imaging site(s).

Illumination system

In a check processing array, an imaging/illumination arrangement for illuminating and imaging checks at one or several imaging sites as they are rapidly, continuously transported past two or more imaging stations, each station having, as its illumination source, a hollow Lambertian integrating vessel, housing lamps which project a highly uniform, diffuse Lambertian illumination-beam to its respective imaging site.

Document imaging with illumination from lambertian surfaces

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Troy, MI, United States of America

David J Valice