Hand held symbology reader illumination diffuser

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United States of America Patent

PATENT NO 9361495
SERIAL NO

13623367

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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)

Patent OwnerAddress
COGNEX TECHNOLOGY AND INVESTMENT LLCONE VISION DRIVE NATICK MA 01760

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nunnink, Laurens Simpleveld, NL 127 1425

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