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Laminated and sealed electrochromic window

  • US 5,124,832 A
  • Filed: 09/29/1989
  • Issued: 06/23/1992
  • Est. Priority Date: 09/29/1989
  • Status: Expired due to Term
First Claim
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1. An article of manufacture having variable transmittance in response to an electric field comprising:

  • a. a first transparent substrate;

    b. an electroconductive electrode member;

    c. a transparent electrochromic film in contact with said electroconductive electrode member;

    d. a preformed, preconditioned ion-conductive polymer sheet in contact with said electrochromic film;

    e. a counter electrode in contact with said ion-conductive polymer sheet;

    f. a second transparent substrate which in combination with said first transparent substrate form the walls of an electrochromic cell; and

    g. a moisture vapor barrier surrounding the perimeter of said cell.

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