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Coated article with anti-reflective layer(s) system

  • US 6,589,658 B1
  • Filed: 11/29/2001
  • Issued: 07/08/2003
  • Est. Priority Date: 11/29/2001
  • Status: Expired due to Term
First Claim
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1. A coated article including a coating supported by a glass substrate, the coating comprising:

  • a metallic infrared (IR) reflecting layer sandwiched between first and second contact layers;

    a first dielectric layer having an index of refraction n<

    =2.7 provided between the IR reflecting layer and the glass substrate;

    a second dielectric layer comprising titanium oxide provided over the IR reflecting layer;

    a third dielectric layer comprising silicon oxynitride provided over the IR reflecting layer;

    a fourth dielectric layer comprising silicon oxide provided over the IR reflecting layer; and

    wherein the third dielectric layer comprising silicon oxynitride is provided between the second and fourth dielectric layers.

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