Abstract: The sensor system comprises an implantable sensor and a user device associated with it. A sensitive liquid is enclosed in the sensor, into which glucose can penetrate. The viscosity of the mixture of sensitive liquid and glucose is measured. The user device, which controls the measurement and its evaluation, is a portable device worn externally on the skin. The viscosity is measured based on the rotation of a measuring element driven by a driving magnet, both disposed in the sensor. The rotation of the measuring element is analyzed based on its decay behavior following switch-off of the driving magnet. In a second embodiment, the viscosity is measured based on the oscillatory behavior of an oscillating element excited to oscillate by a magnet, both disposed in the sensor. The oscillatory behavior is analyzed based on the decay behavior of the oscillating element following switch-off of the magnet.

Abstract: The proposed sensor system comprises an implantable sensor (1?) and a user device associated with the latter. A sensitive liquid is enclosed in the sensor (1?), into which glucose can penetrate. The viscosity of the mixture consisting of the sensitive liquid and the glucose is measured. The user device, which controls the measurement and its evaluation, consists of a portable device worn externally on the skin. The viscosity is measured on the basis of the rotation of a measuring element (35) which is disposed in the sensor (1?) and which can be driven by a driving magnet (24) likewise disposed in the sensor (1?). The rotation of the measuring element (35) is analysed on the basis of its decay behaviour following switch-off of the driving magnet (24). In the case of a second exemplary embodiment, the viscosity is measured on the basis of the oscillatory behaviour of an oscillating element which is disposed in the sensor and which can be excited to oscillate by a magnet likewise disposed in the sensor.

Abstract: A composite material having an aluminum substrate, an intermediate layer located on one side of the substrate, and an optically active multilayer system applied to the intermediate layer. The multilayer system includes three layers. The two upper layers are dielectric and/or oxide layers and the bottom layer is a metallic layer applied to the intermediate layer. In order to controllably and selectively set the absorptivity and reflectivity in various wavelength regions, the intention also being to ensure good processability, in particular deformability, a high thermal conductivity and high long-term thermal and chemical stability of the material, the top layer is a dielectric layer, preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFr, MeNs, with a refractive index n<1.8. The middle layer is a chromium oxide layer of chemical composition CrOx. The bottom layer of gold, silver, copper, chromium, aluminum and/or molybdenum.

Abstract: The present invention relates to a composite material, in particular for reflectors, having a metallic support (1) in strip form, an intermediate layer and having a multilayer optical system (3) which is applied to the intermediate layer (2). A non-metallic protective layer (4), which consists of a low-absorption material and has a thickness (D4) of from 5 to 20 nm, preferably from 5 to 10 nm, is applied to the multilayer optical system (3).

Abstract: The invention relates to a solar collector element having an absorber part and a tube for a heat transfer liquid connected thereto on a first side. The absorber part consisting of a composite material having a metallic substrate and an optically active coating on a second side of the substrate. The coating is a multilayer system having three layers. The top layer is a dielectric layer, preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFr, MeNs, having a refractive index n<1.8. The middle layer is a chromium oxide layer of chemical composition CrOx. The bottom layer is gold, silver, copper, chromium, aluminium and/or molybdenum. The indices x, z, r and s indicate a stoichiometric or non-stoichiometric ratio in the oxides, fluorides or nitrides.

Abstract: A composite material having an aluminum substrate, an intermediate layer located on one side of the substrate, and an optically active multilayer system applied to the intermediate layer. The multilayer system includes three layers. The two upper layers are dielectric and/or oxide layers and the bottom layer is a metallic layer applied to the intermediate layer. In order to controllably and selectively set the absorptivity and reflectivity in various wavelength regions, the intention also being to ensure good processability, in particular deformability, a high thermal conductivity and high long-term thermal and chemical stability of the material, the top layer is a dielectric layer, preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFr, MeNs, with a refractive index n<1.8. The middle layer is a chromium oxide layer of chemical composition CrOx. The bottom layer of gold, silver, copper, chromium, aluminum and/or molybdenum.

Abstract: The invention relates to a cover part for a light source, in particular for a headlight lamp in a motor vehicle headlight. The cover part has a wall with a first side facing the light source and having light-absorbing action. The wall also has a second side away from the light source, that has a reflective action. In order to achieve high light absorption, improved use characteristics under operating conditions which involved high thermal loads, and longer service life, combined with a production method involving a minimum possible capital outlay, the wall of a composite material having a metallic substrate, to which an optically active multilayer system is applied. The multilayer system is composed of a top layer, being a dielectric layer and preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFf, MeNs with a refractive index n<1.