Patent · US Expired

Glass substrate provided with a thin-film stack having reflective properties in the infrared and/or in the region of solar radiation

US6159621A · kind A · utility

33Cited by

3References

16Claims

0Family size

Assignee

Saint-Gobain Vitrage · FR

Inventors

Heinz Schicht · Bethau, DE
Uwe Schmidt · Falkenberg, DE
Wilfried Kaiser · Torgau, DE
Bodo Hryniw · Torgau, DE

Key dates

Filing date	Jul 31, 1998
Grant date	Dec 12, 2000
Priority date	—
Expiry date	Jul 31, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention concerns a transparent substrate provided with a thin-film stack comprising at least one metallic film with reflective properties in the infrared, under which is disposed a first antireflection coating consisting essentially of one or more metal oxides, and an upper protective metallic film characterized in that the protective metallic film consists of an alloy of Ti, Zr or Hf with Al, Pt or Pd or an AlSi alloy. According to the invention, the second upper antireflection coating includes at least two metal oxide films, one of which is ZnO based and contains 0.1 to 10% by weight of at least one of the elements B, Si, Ga, Sm, Al, Co, Mg, Mn, Fe, Ni and/or Cr and the other is SnO.sub.2 or Bi.sub.2 O.sub.3 based, and a final, hard oxide based film.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.