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Color-corrected heat-reflecting composite films and glazing products containing the same

  • US 5,071,206 A
  • Filed: 05/25/1988
  • Issued: 12/10/1991
  • Est. Priority Date: 06/30/1986
  • Status: Expired due to Term
First Claim
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1. A glazing material comprising a visible light transparent structural sheet member having two sides and a surrounding edge, said sheet member having adhered to one of its sides a color-corrected infrared-reflecting Fabry-Perot interference filter composite, said composite itself comprising a seven layer structure made up of the following sequential layers;

  • a discrete continuous visible light transparent dielectric boundary layer;

    a discrete continuous visible light transparent metal layer;

    a discrete continuous visible light transparent dielectric spacer layer;

    a discrete continuous visible light transparent metal layer;

    a discrete continuous visible light transparent dielectric spacer layer;

    a discrete continuous visible light transparent metal layer; and

    a discrete continuous visible light transparent dielectric outer layer;

    wherein the metal layers each comprise silver and each are from 4 to 17 nm in thickness and the dielectric layers each have an index of refraction of from about 1.75 to about 2.25 with the spacer layers having a thickness of from 70 to 100 nm and the boundary and outer layers each having a thickness of from about 30 nm to about 70 nm.

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