Hand held symbology reader illumination diffuser

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8286878
SERIAL NO

12573402

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Abstract

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A hand held industrial identification symbol reader projects diffuse illumination onto a region of interest to produce high contrast images of symbols. The diffuse illumination is particularly well suited for producing images of symbols that are marked directly on objects. The diffuse illumination is created through the use of an optically translucent diffuser having a generally tapered shape that distributes diffuse illumination throughout the field of view of the reader. The diffuse illumination can be supplemented with dark field illumination using selectively actuated illumination sources.

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Patent Owner(s)

  • COGNEX TECHNOLOGY AND INVESTMENT CORPORATION;COGNEX TECHNOLOGY AND INVESTMENT LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nunnink, Laurens Simpelveld, NL 127 1427

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