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Transparent substrates coated with a stack of thin layers having reflection properties in the infrared and/or in the solar radiation range

  • US 5,965,246 A
  • Filed: 06/03/1996
  • Issued: 10/12/1999
  • Est. Priority Date: 06/01/1995
  • Status: Expired due to Term
First Claim
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1. A transparent substrate provided with a stack of thin layers, having an emissivity of at most 0.044, a light transmission of at least 78% and a color saturation value C* of at most approximately 4 in reflection, comprising at least one layer having reflection properties in the infra-red or solar radiation range or both, interposed between a first and second coating comprising a dielectric material, wherein an interlayer comprising material having a refractive index less than that of the substrate is interposed between the substrate and the stack such that the difference in a refractive indices between the substrate and the interlayer is at least 0.07.

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