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Neutral reflecting coated articles with sputtered multilayer films of metal oxides

  • US 4,902,580 A
  • Filed: 10/21/1988
  • Issued: 02/20/1990
  • Est. Priority Date: 04/01/1988
  • Status: Expired due to Term
First Claim
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1. A visually neutral reflectance, high transmittance, low emissivity article comprising:

  • a. a transparent nonmetallic substrate;

    b. a first transparent antireflective metal oxide film having a refractive index of about 2.0 deposited on a surface of said substrate;

    c. a transparent metal oxide layer having a refractive index greater than 2.0 deposited on said first antireflective metal oxide film;

    d. a transparent infrared reflective metallic film deposited on said metal oxide layer;

    e. a transparent metal layer deposited on said infrared reflective metallic film; and

    f. a second transparent antireflective metal oxide film deposited on said metal layer.

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