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Temperable three layer antireflective coating, coated article including temperable three layer antireflective coating, and/or method of making the same

  • US 10,214,446 B2
  • Filed: 10/24/2017
  • Issued: 02/26/2019
  • Est. Priority Date: 09/03/2010
  • Status: Active Grant
First Claim
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1. A coated article comprising an antireflective coating supported by a first major surface of a substrate, wherein the antireflective coating comprises, in order moving away from the substrate:

  • a silicon-inclusive medium index layer disposed, directly or indirectly, on the first major surface of the substrate;

    a high index layer disposed over and contacting the medium index layer, the high index layer having a thickness of at least 85 nm;

    a low index layer disposed over and contacting the high index layer;

    wherein the medium index layer comprises silicon oxynitride and has an index of refraction of from about 1.65 to 2.0 at 380 nm, 550 nm, and 780 nm wavelengths, the high index layer has an index of refraction of at least about 2.0 at 380 nm, 550 nm, and 780 nm wavelengths, and the low index layer has an index of refraction of from about 1.4 to 1.6 at 380 nm, 550 nm, and 780 nm wavelengths.

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