Thermally insulating glazing with a low emissivity

摘要

A heat insulating glass pane has low emissivity and high transmission in the visible spectral range and has a SnO2-ZnO-Ag- sacrificial metal-SnO2 multilayer which acts neutrally in transmission and reflection. The novelty is that the multilayer has, starting at the glass surface, the following structure with the following layer thicknesses: SnO2 18-22 (pref. 20) nm.; ZnO 16-22 (pref. 17) nm.; Ag 10-13 (pref. 11) nm.; NiCr 2-5 (pref. 4) nm.; and SnO2 38-42 (pref. 40) nm.