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Integrated illumination assembly for symbology reader

  • US 9,536,124 B1
  • Filed: 04/10/2015
  • Issued: 01/03/2017
  • Est. Priority Date: 10/24/2003
  • Status: Active Grant
First Claim
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1. An illumination assembly for a mark reader disposed along an optical viewing axis comprising:

  • a light pipe defined by at least four adjacent sides including a first opposing pair of sides and a second opposing pair of sides, the light pipe including a chamfered edge at a distal end that directs light from a ring light source at the proximal end onto a surface as dark field; and

    wherein a first spacing between the first opposing pair of the sides has a length different than a length of a second spacing between the second opposing pair of the sides.

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