Electrochromic windows and method of making the same

  • US 6,842,276 B2
  • Filed: 11/14/2003
  • Issued: 01/11/2005
  • Est. Priority Date: 07/25/2000
  • Status: Expired due to Term
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First Claim
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1. An electrochromic device comprising an electrochromic medium having a color stability Δ

  • E less than 10, measured in its low transmission state after being subject to continuous cycling outdoors at an angle of 5°

    from a horizontal condition for two years outdoors, each cycle consisting of application of sufficient potential for a sufficient time such that the window reaches its low transmission state.

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