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Reversible window unit for alternately reflecting and absorbing solar energy

  • US 4,235,048 A
  • Filed: 01/03/1978
  • Issued: 11/25/1980
  • Est. Priority Date: 01/03/1978
  • Status: Expired due to Term
First Claim
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1. A coated article for alternately reflecting and absorbing incident solar energy comprising:

  • a. a transparent substrate;

    b. a reflective coating layer of metal, deposited on a surface of said transparent substrate;

    c. an absorptive coating layer, deposited on said metal; and

    d. an antireflective material selected from the group consisting of silicon oxides, aluminum oxides and magnesium fluoride deposited on said absorptive coating layer.

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