Thin-film coatings, electro-optic elements and assemblies incorporating these elements

  • US 7,688,495 B2
  • Filed: 03/05/2007
  • Issued: 03/30/2010
  • Est. Priority Date: 03/03/2006
  • Status: Active Grant
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First Claim
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1. An electro-optic element configured for use in a rearview automotive mirror, the electro-optic element comprising:

  • a first substrate including first and second surfaces, the first substrate containing at least a first layer of electrically conductive material deposited on the second surface; and

    a second substrate including third and forth surfaces, the first and second substrates disposed in a parallel and spaced-apart relationship to define a gap between the second and third surfaces, the gap containing an electro-optic medium, the second substrate containing a thin-film coating that includes at least a second layer of electrically conductive material deposited on the third surface,wherein at least one of the first and second layers is characterized by a mean peak-to-valley surface roughness less than or equal to approximately 150 Å

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