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Anti-reflective films

  • US 5,935,716 A
  • Filed: 02/17/1998
  • Issued: 08/10/1999
  • Est. Priority Date: 07/07/1997
  • Status: Expired due to Term
First Claim
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1. An anti-reflective glass article, comprising:

  • (a) a glass substrate,(b) a first pyrolytic coating of a metal oxide applied over said substrate, said first coating of metal oxide having a refractive index of 1.8 to 2.6 and a thickness of greater than l/(4*n) wherein l equals a design wavelength in the visible spectrum and n equals the refractive index of said first coating of metal oxide; and

    (c) a second pyrolytic coating of a metal oxide applied over said first coating, said second coating of metal oxide having a refractive index of about 1.45 to about 1.6 and a thickness of less than l/(4*n).

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