Scanner for scanning items marked with near-infrared tags
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United States of America Patent
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Apr 20, 2010
Grant Date -
Feb 5, 2009
app pub date -
Oct 7, 2008
filing date -
Apr 7, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A scanner for scanning items marked with near-infrared tags includes a laser configured to produce a narrowband near-infrared beam matched to a peak wavelength of near-infrared ink used to print the tags. A mirror assembly re-directs the beam. A deflecting arrangement receives the re-directed beam. A steering mirror steers the deflected beam. A scanning mirror directs the beam onto the tag to be scanned and a light collection system collects light reflected by the tags.
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