Saint-gobain Glass France

Robert Drese

Stefan Droste

Mitja Rateiczak

Andreas Schlarb

Walter Schreiber

Patrick Weber

Dang Cuong Phan

Klaus Fischer

Christoph Degen

Gunther Vortmeier

Sebastian Janzyk

Ulrich Billert

Stephane Laurent

Olaf Eckelt

Giordano Soma

A panel heater with at least one flat substrate and an electrically conductive coating is described. The electrically conductive coating extends at least over part of a substrate area and is electrically connected to at least two connecting electrodes provided for electrical connection to the two terminals of a voltage source, such that by applying a feed voltage, a heating current flows in a heating field, which is provided with one or a plurality of heating current paths formed into the conductive coating. The panel heater has one or more measurement current paths formed into the electrically conductive coating, which differ at least in sections from the heating current paths. The heating and measurement current paths are formed into the electrically conductive coating by coating-free separating regions. A method for operation and use of the panel heater is also described.

Panel heater with temperature monitoring

The invention relates to a substrate (), especially a transparent glass substrate, equipped with a thin-film multilayer comprising, in alternation, 'n' metallic functional films (), in particular functional films based on silver or a metal alloy containing silver, and '(n+1)' antireflection coatings (), where n is an integer&#x2267;3, each antireflection coating comprising at least one antireflection film, so that each functional film () is located between two antireflection coatings (), characterized in that said multilayer comprises at least two high-refractive-index antireflection films (), each having a refractive index&#x2267;2.15 such that the antireflection coating () located under the first, starting from the substrate, functional film () and the antireflection coating located on the last, starting from the substrate, functional film each comprise at least one high-refractive-index antireflection film () and each antireflection coating () located between two functional films does not comprise a high-refractive-index film.

Substrate provided with a multilayer coating having thermal properties, in particular for production of a heated glazing unit

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Aachen, Germany

Robert Drese