Hand held symbology reader illumination diffuser

Details Hand held symbology reader illumination diffuser Hand held symbology reader illumination diffuser

2004-12-16

2009-11-17

Franklin, Jamara A (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

Reexamination Certificate

active

07617984

ABSTRACT:
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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Vision-Supplies.Com, Siemens LytePipe 1.5″×30, 1999.

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