Abstract: The invention relates to a continuously electrically switchable transmissive electrooptical element (10) for a glass pane arrangement (11) for windows, doors, partitions, fabade displays and the like, provided with a liquid crystal layer (30) upon whose both sides a transparent electrode (27, 33) is respectively arranged; also provided with a respective carrier substrate (26, 34). In order to ensure that the light polarizators are protected against external influences and to enable the transmissive electrooptical element (10) to be produced in an economical manner, a respective light polarisation layer (25, 35) is provided inside the element (10) of the liquid crystal layer (30) in an directly or indirectly adjacent position.

Abstract: An umbrella device which has a shank, an umbrella-like cap formed as a membrane and a driver. The membrane is connected to the shank and is caused by the driver to move from a position of rest where it droops limply around the shank to an open position where it is essentially horizontal due to the centrifugal forces of the membrane produced by the rotation of the membrane by the driver.

Abstract: A light-transmitting building component, as wall roof or ceiling component etc. is formed with a technical membrane, in the form of a textile tissue on the outward-facing side and, furthermore, by a sound-insulation layer arranged at a distance to the outer layer of the technical membrane, and by and infrared-impeding, light-transmitting layer on the inward-facing side. In this manner, a building component is created which features low surface weight and still meets stringent requirements not only in terms of resistance to climatic influences but also with regard to heat and sound insulation.