The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 08, 2009

Filed:

Oct. 27, 2004
Applicants:

George W. Mcclurg, Jensen Beach, FL (US);

Dean J. Fedele, Jupiter, FL (US);

Inventors:

George W. McClurg, Jensen Beach, FL (US);

Dean J. Fedele, Jupiter, FL (US);

Assignee:

Cross Match Technologies, Inc., Palm Beach Gardens, FL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/74 (2006.01);
U.S. Cl.
CPC ...
Abstract

Light wedges that reflect light internally and produce diffuse light for uniformly illuminating a platen in a print scanner are presented. In one example, a light wedge has a first surface that receives light emitted from an illumination source and a second surface that limits specular reflections. The light wedge transmits light from the illumination source toward the platen, whereby uniform illumination is provided to the platen. In another example, a light wedge has an illumination surface that receives light emitted from the illumination source, a first surface that limits specular reflections, and a second surface that acts as a diffuser. The second surface reflects light out of the light wedge toward the platen, whereby uniform illumination is provided to the platen.


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