Patent Number: 7,785,721

Title: Thermally treatable layer assembly that filters sun and heat and method for producing the same

Abstract: A layer system that filters sun and heat can be applied to glass by a vacuum coating process. The system comprises at least one series of metal layers in addition to a respective series of lower dielectric layers and a respective series of upper dielectric layers. At least one series of metal layers and one series of upper and lower dielectric layers are configured as a sandwich system, wherein one metal layer is encapsulated by an upper and a lower intermediate layer consisting of hypostoichiometrically nitrided or oxidized metal of the metal layer and sandwich systems of the series of layers contain individual sandwich layers of a stoichiometric and hypostoichiometric oxide or nitride of a metal or semiconductor. An oxygen or nitrogen deficit of the sandwich layers increases towards a neighboring sandwich system and the oxide and nitride layers are produced in a vacuum coating process.

Inventors: List; Matthias (Dresden, DE), Milde; Falk (Dresden, DE), Koeckert; Christoph (Radebeul, DE), Fiukowski; Joerg (Torgau, DE)

Assignee: Von Ardenne Anlagentechnik GmbH

International Classification: B32B 15/04 (20060101); B05D 1/00 (20060101)

Expiration Date: 8/31/12018