Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Siemens Aktiengesellschaft

Basf Aktiengesellschaft

Volker Wittwer

Wolfgang Graf

Andreas Georg

Hans Krueger

Andreas Gombert

Franz Brucker

Michael Koehl

Wolfgang Eck

Ludwig Thomas

Guenther Baur

Fritz Windscheid

Hans-Joachim Cantow

The present invention relates to a glazing element for facing building facades or window systems, in particular for motor vehicles, trains or aircraft, having at least two panes, which enclose an intermediate space, and on one pane surface facing said intermediate space a coating buildup is provided, having an electrically conductive layer applied to one pane surface, thereupon an electrochromic, and thereupon an ion-conducting and thereupon an electrocatalytic layer. The invention is distinguished by the fact that, in addition to the coating buildup in the intermediate space, which is free of water, solely a reducing or oxidizing gas or gas mixture comprising a reducing or an oxidizing gas or a gas mixture comprising a reducing or an oxidizing gas and an inert gas is provided and that an electric voltage of less than 1.2 volts between the electrically conductive and the electrocatalytic layer is applied.

Glazing element

Disclosed are mixtures of two or more polymers of which at least one is cross-linked. Interpenetrating polymer networks are on hand. The polymers mix below a certain temperature and demix above this temperature (LCST behavior). Below the demixing temperature, such interpenetrating polymer networks are optically clear, above the demixing temperature they are milky, turbid and have reduced light transmission due to the light scattering of the phaseseparated system' if the refractive indices of the components do not coincide. The demixing process is fully reversible below the demixing temperature.

Material having temperature-defendant light transmission

Glazing element, in particular for facing building facades

An indicating device having an electro-optical light valve unit such as in a liquid crystal cell arranged behind a plate containing fluorescent particles characterized by a contrast filter disposed behind the plate and unit in the direction of viewing and a reflector disposed behind the contrast filter. The contrast filter will pass light of the spectrum which excites the fluorescent particles of the fluorescent plate but absorbs the emitted fluorescent light and a majority of the other light so that a background is either dark or of a specific color. The energized light valves cause a bright image on the dark or colored background.

Indicator device having electro-optical light valve unit

Growing community of inventors

Freiburg, Germany

Volker Wittwer