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Method for manufacturing panes with high transmissivity in the visible range of the spectrum and with high reflectivity for thermal radiation

  • US 5,279,722 A
  • Filed: 02/20/1992
  • Issued: 01/18/1994
  • Est. Priority Date: 10/30/1991
  • Status: Expired due to Fees
First Claim
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1. Method for manufacturing panes of high transmissivity in the visible range of the spectrum and with a high reflectivity for thermal radiation, comprising:

  • coating transparent substrates by cathode sputtering, to forma first layer of a material selected from the oxide group consisting of ZnO, SnO2, In2 O3, TiO2, ZrO2, Ta2 O5, SiO2, Al3 O3 and mixtures thereof and the nitride selected from the group consisting of AlN, Si3 N4 and mixtures thereof and oxynitride selected from the group consisting of aluminum oxynitride, titanium oxynitride, zirconium oxynitride and silicon oxynitride and mixtures thereof, with a thickness of 20 nm to 60 nm,a second layer of a metal selected from the group consisting of Ag, Cu and mixtures thereof, with a thickness of 5 to 30 nm,a third layer of a metal selected from the group consisting of Pd, Pt and mixtures thereof, with a thickness of 0.2 to 5 nm,a fourth layer of a material selected from the group consisting of a metal Ti, Cr and a mixture and suboxides thereof, in a thickness of 0.5 to 5 nm, anda fifth layer of a material that is the same as the first layer.

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