Variable transmission window system

  • US 7,990,603 B2
  • Filed: 06/11/2007
  • Issued: 08/02/2011
  • Est. Priority Date: 06/09/2006
  • Status: Active Grant
First Claim
Patent Images

1. A variable transmittance window comprising:

  • an electrochromic device coupled to control circuitry for varying the transmittance of the electrochromic device, said electrochromic device comprising;

    first and second substrates arranged in a parallel, spaced-apart relation to form a chamber between inner surfaces of said substrates;

    a transparent electrode coating provided on each of said inner surfaces of said substrates;

    first and second layers of silver epoxy respectively deposited on inner surfaces of said first and second transparent electrode coatings of said substrates at a perimeter of said substrates; and

    an electrochromic medium disposed between said transparent electrode coatings.

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