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Method and apparatus for reading optical indicia

  • US 8,701,999 B2
  • Filed: 05/02/2008
  • Issued: 04/22/2014
  • Est. Priority Date: 05/02/2008
  • Status: Active Grant
First Claim
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1. A method of reading optical indicia on a surface of an object comprising:

  • generating a calibration light from an illumination source with an illumination system for determining an optimum exposure level of an imaging system that takes into account a reflectivity of the surface of the object when a measured intensity of ambient light is lower than a predetermined value;

    measuring an intensity of the calibration light reflected into a detector system;

    determining the optimum exposure level of the imaging system based on the measured intensity of the calibration light reflected into the detector system;

    generating an illumination light from the illumination source with the illumination system; and

    capturing an image of the optical indicia with the imaging system subjecting to the optimum exposure level while the optical indicia is illuminated by the illumination light from the illumination source.

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