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Heatable lens for luminaires, and/or methods of making the same

  • US 9,725,356 B2
  • Filed: 01/08/2015
  • Issued: 08/08/2017
  • Est. Priority Date: 02/26/2010
  • Status: Active Grant
First Claim
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1. A lens for a lighting system, comprising:

  • a glass substrate supporting an antireflective coating and a transparent conductive coating on first and second major surfaces thereof, respectively; and

    at least one bus bar in electrical communication with the transparent conductive coating, the at least one bus bar being configured to convey voltage to the transparent conductive coating to cause the transparent conductive coating to heat,wherein the substrate is to be heat treated together with the antireflective and transparent conductive coatings thereon; and

    wherein the transparent conductive coating comprises a layer comprising a transparent conductive oxide (TCO) sandwiched between first and second layers comprising silicon oxynitride.

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