Measuring and compensating for light intensity in an optical scanner
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United States of America Patent
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Apr 1, 2014
Grant Date -
Feb 17, 2011
app pub date -
Feb 6, 2009
filing date -
Feb 6, 2008
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Abstract
Disclosed is a device for optical scanning, comprising: a plurality of photo sensors, where the photo sensors are arranged to detect light incident on the photo sensors, emitted from a light source and reflected from an object subject to optical scanning; wherein the amount of light received at least one of the photo sensors is to a larger extent light transmitted from the light source; and to a smaller extent light reflected from the object.
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