Abstract: The invention relates to an illumination device, in particular for vehicles. The illumination device comprises at least two semiconductor light sources which emit light with different colours, as well as at least one light guide into which the light from the semiconductor light sources is injected, and a light mixer device that is arranged on the entry side of the light guide and has a transparent light-refracting element, by which the spatial distribution of the light from the light sources is mixed so as to generate light that constitutes a colour superposition of the light from the semiconductor light sources. The transparent light-refracting element comprises an end face which forms a light entry face for the light emitted by the semiconductor light sources, the semiconductor light sources being arranged next to one another and in front of the light entry face.

Abstract: The invention relates to a transparent arrangement for a display device, in particular for an analog and/or digital display, having a fiber-optic arrangement which transmits light from an entry face into an exit face, wherein regions, in particular pixels, of an image field lying in front of the entry face are visible on the exit face of the fiber-optic arrangement, and regions visible on the exit face, in particular pixels are spatially offset relative to the image field at least by an offset V.

Abstract: The invention relates to a display device having a fiber-optic plate and a display with an image plane on which the image information of the display is generated, the fiber-optic plate comprising a fiber bundle with a multiplicity of fiber cores extending beside one another, which are enclosed by a cladding material and which transmit light from an entry face of the fiber-optic plate, facing the display, to an exit face of the fiber-optic plate, wherein the entry face of the fiber-optic plate lies further away from the image plane than the lateral dimension of the smallest image information representable by the display.

Abstract: The invention relates to an illumination device, in particular for vehicles. The illumination device comprises at least two semiconductor light sources which emit light with different colours, as well as at least one light guide into which the light from the semiconductor light sources is injected, and a light mixer device that is arranged on the entry side of the light guide and has a transparent light-refracting element, by which the spatial distribution of the light from the light sources is mixed so as to generate light that constitutes a colour superposition of the light from the semiconductor light sources. The transparent light-refracting element comprises an end face which forms a light entry face for the light emitted by the semiconductor light sources, the semiconductor light sources being arranged next to one another and in front of the light entry face.

Abstract: In order to achieve an increased reliability in respect of failure in optical networks, the invention provides a passive star coupler comprising a multiplicity of at least three optical waveguides as arms of the star coupler, which are combined at one end, and comprising, adjacent to the combined end, a reflective light mixer in the form of a common individual optical waveguide section with a light reflector, which reflects light which is guided through one of the optical waveguides and passes through the adjacent common individual optical waveguide section back into the common individual optical waveguide section, such that the light is split between the individual optical waveguides and is forwarded through the latter.

Abstract: The invention relates to a display device having a fiber-optic plate and a display with an image plane on which the image information of the display is generated, the fiber-optic plate comprising a fiber bundle with a multiplicity of fiber cores extending beside one another, which are enclosed by a cladding material and which transmit light from an entry face of the fiber-optic plate, facing the display, to an exit face of the fiber-optic plate, wherein the entry face of the fiber-optic plate lies further away from the image plane than the lateral dimension of the smallest image information representable by the display.

Abstract: There are now provided thin-film solar cells and method of making. The devices comprise a low-cost, low thermal stability substrate with a semiconductor body deposited thereon by a deposition gas. The deposited body is treated with a conversion gas to provide a microcrystalline silicon body. The deposition gas and the conversion gas are subjected to a pulsed electromagnetic radiation to effectuate deposition and conversion.

Abstract: The device for simultaneous multi-sided coating of a substrate, especially a lens, by microwave plasma chemical vapor deposition has a reaction chamber with microwave windows and microwave guides with microwave launch sites for guiding microwaves into the reaction chamber through the windows; dielectric tuning elements at the microwave launch sites to influence the microwave field distribution and at least one substrate holder arranged so that surfaces to be coated are oriented perpendicularly to plasma propagation directions. The respective shapes of the dielectric tuning elements are adapted to corresponding shapes of the surfaces, so that inhomogeneities in plasma distributions in the plasmas formed in the reaction chamber are corrected and coatings formed on the surfaces have a uniform thickness. Coated surfaces on opposite sides of a lens have a uniformity of ±1%.

Abstract: The method for coating plural surfaces on multiple sides of a substrate, especially a lens, includes launching microwave outputs into a microwave reactor at respective microwave launch sites; selecting respective microwave outputs to be greater than or equal to thresholds at which corresponding plasmas having a reduced permeability to microwave radiation arise in the microwave reactor; setting distances between the plural surfaces and microwave launch sites greater than microwave penetrations depths in the plasmas; placing respective dielectric tuning elements in microwave fields formed from the microwave outputs at the launch sites; and adapting the shapes of the dielectric tuning elements to the plural surfaces to be coated, so that plasma inhomogeneities are corrected and coatings with a uniformity of ±1% are formed on the plural surfaces.

Abstract: There are now provided thin-film solar cells and method of making. The devices comprise a low-cost, low thermal stability substrate with a semiconductor body deposited thereon by a deposition gas. The deposited body is treated with a conversion gas to provide a microcrystalline silicon body. The deposition gas and the conversion gas are subjected to a pulsed electromagnetic radiation to effectuate deposition and conversion.

Abstract: To enable the time required to produce an optical substrate on which one or more layers which influence the propagation of light are to be arranged to be reduced, and preferably to provide this optical substrate with significantly lower surface stresses, the invention describes the use of an application method and an optical substrate produced using this method, in which at least one of the layers comprises halogen atoms or a halogen compound as a result of the production.

Abstract: There are now provided thin-film solar cells and method of making. The devices comprise a low-cost, low thermal stability substrate with a semiconductor body deposited thereon by a deposition gas. The deposited body is treated with a conversion gas to provide a microcrystalline silicon body. The deposition gas and the conversion gas are subjected to a pulsed electromagnetic radiation to effectuate deposition and conversion.

Abstract: The invention provides that for each surface of a substrate (2) to be coated, a plasma is injected into a coating reactor (1) used for carrying out microwave PCVD methods, and the surface to be coated is perpendicularly orientated with regard to the direction of spreading of the corresponding plasma Dielectric compensating elements (4a, b) are introduced into the vicinity of the microwave injection points (3) and correct for non-homogeneities resulting in the distribution of plasma thicknesses by altering the microwave field distribution.

Abstract: An optical filter arrangement that is especially useful for optical signal transmission, multiplexing and demultiplexing purposes has an optical filter, a reflecting arrangement, and a holder for holding the optical filter and the reflecting arrangement.

Abstract: There are now provided thin-film solar cells and method of making. The devices comprise a low-cost, low thermal stability substrate with a semiconductor body deposited thereon by a deposition gas. The deposited body is treated with a conversion gas to provide a microcrystalline silicon body. The deposition gas and the conversion gas are subjected to a pulsed electromagnetic radiation to effectuate deposition and conversion.

Abstract: An integrated-optical luminescence sensor having an excitation light beam with a first optical axis (kein), a planar waveguide (1), a sample interacting with the evanescent field thereof, and a detection beam path, with a second optical axis, that comes from the waveguide, and/or a coupling-out grating (7) for coupling out the portion of luminescence light guided in the waveguide, wherein the luminescence light to be detected is physically separate from the excitation light.

Abstract: The invention concerns a plasma CVD system (in particular a plasma pulse CVD system) with an array of microwave antennas. According to the invention, in order to improve the homogeneity of the layer, interference is prevented by controlling adjacent antennas in a chronologically offset manner. To that end, microcapsules are provided within the macrocapsules of the plasma pulse CVD process. Additionally, the uniformity of the layer deposition at the interfaces between adjacent modules can be optimized by radio-frequency excitation by means of suitable electrodes, magnetic fields or the configuration of the gas inlets. The surface coated in an operating cycle can thus be scaled as required.

Abstract: In order to guarantee that individual elastomeric components used for medicinal or pharmaceutical purposes have improved inertness and static and sliding friction properties, a suitable layer is provided on the elastomeric components for this purpose by the method of the invention. This method includes providing an extended flat mat made of elastomeric material including connected protruding elastomeric components; coating at least one side of the mat including the connected elastomeric components by means of a PECVD or PICVD method to provide a silicon dioxide layer containing carbon, hydrogen and/or nitrogen on the at least one side of the mat; and punching the connected elastomeric components out of the mat to form individual unconnected elastomeric components, each at least partially coated with a portion of the layer.

Abstract: The invention relates to a process for determing lumnescence with a planar dielectric optical sensor platform which consists of a transparent substrate to which a thin transparent waveguiding layer is applied, which sensor platform is provided with a coupling grating for the input-coupling of the excitation light and the refractive index of the substrate is lower than the refractive index of the waveguiding layer, by briging a liquid sample as superstrate into contact with the layer, and measuring the luminescence produced by substances having luminescence properties in the sample, or by substances having luminescence properties immobilized on the layer, optoelectronically. The invention also relates to the use of the process in quantitative affinity sensing and to the use thereof for the quantitative determination of luminescent constituents in optically turbid solutions, and to sensor platform for carrying out the process.

Abstract: Arrangement for analysis of substances at or near the surface of an optical sensor with at least one wave-guiding film and at least one multidiffraction grating coupler for in-coupling and out-coupling of light beams, in which at least two light beams enclosing an angle .alpha. relative to one another are coupled in and by which at least two light beams enclosing an angle .phi. relative to one another are coupled out, and with a detection system for detecting the out-coupled light beams, wherein in-coupling and out-coupling are effected on one and the same side of the sensor and the in-couple beams and out-couple beams lie in different quadrants of the plane of incident light, and the angle .alpha. between the in-couple beams is greater than the angle .phi. between the out-couple beams. The arrangement has multiple uses for determining physical or chemical measured quantities based on the interaction of the guided light waves with the medium at or near the sensor surface.