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Glazing panel provided with a conductive and/or low emissivity film

  • US 6,174,599 B1
  • Filed: 04/04/1997
  • Issued: 01/16/2001
  • Est. Priority Date: 07/12/1995
  • Status: Expired due to Fees
First Claim
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1. In a glazing panel comprising a transparent substrate (1) provided with at least one functional, conductive and/or low-emissivity, transparent thin film (3), the improvement comprising at least one intermediate film (2) disposed between the substrate (1) and the functional film (3), said at least one intermediate film having a decreasing refractive index gradient where the refractive index decreases through its thickness from the substrate to the functional film.

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