Abstract: A luminaire system has a support rail comprising an elongated support profile and a current conducting profile arranged therein, as well as a component (electrical or electronic) with a coupling element for electrically and mechanically coupling the component to the support rail via an opening in the support profile. The luminaire system has a component with a coupling member that electrically couples and mechanically couples various components, said coupling member also having a blocking element.

Abstract: The invention relates to a method for forming a luminaire (1), which has a trough-shaped luminaire housing (10, 110) having a region (25, 125) for accommodating illuminants, which is surrounded by a seal (40), a cover (70, 80) which spans the region (25, 125) and abuts the seal (40) in a peripherally closed manner, a frame-like holding element (50, 150), which presses the cover (70, 80) into abutment with the seal (40). For the luminaire housing (10 110), the cover (70, 80) and the holding element (50, 150), are each available in at least two different variants, which can be combined in any way, wherein in order to form the luminaire (1) according to desired output properties and/or properties with regard to heat dissipation or moisture resistance, a suitable luminaire housing (10, 110), a cover (70, 80) and a holding element (50, 150) are in each case selected and the selected components are assembled to form the luminaire (1).

Abstract: A trough-shaped lamp housing (10) which is integrally produced in a deep-drawing process and has a housing bottom (11) and a housing wall (12) which laterally surrounds the housing bottom (11) and which, together with the housing bottom (11), delimits a lamp chamber, wherein the housing bottom (11) has a planar region (20, 25) for receiving at least one lamp component (120, 130) in a planar manner, wherein the planar region (20, 25) is circumferentially surrounded by a raised and/or recessed annular structure (35) which is integrally formed in a deep-drawing process, and wherein the housing wall (12) discontinues at the circumferential edge thereof that faces away from the housing bottom (11) in a circumferentially closed edge portion (16), which lies in a plane.

Abstract: A shared memory system for providing unidirectional communication across a security threshold defined by producer and consumer of a message at different security levels. A unidirectional shared memory element is accessible for read and write access by the message producer (sender), and the consumer (receiver) has only read access. Transmission logic ensures atomic receipt of the message if it is received, as the receiver cannot issue an acknowledgement to the sender as in conventional electronic interfaces. An arrangement of indices and counters allows asynchronous operation by the sender and receiver, as messages may queue up in the shared memory if the producer exceeds the consumer. In the event of a failure, anomaly, or resource overrun, it is known that messages that were received were received in entirety; in other words, atomicity is preserved.

Abstract: The invention relates to a method for forming a luminaire (1), which has a trough-shaped luminaire housing (10, 110) having a region (25, 125) for accommodating illuminants, which is surrounded by a seal (40), a cover (70, 80) which spans the region (25, 125) and abuts the seal (40) in a peripherally closed manner, a frame-like holding element (50, 150), which presses the cover (70, 80) into abutment with the seal (40). For the luminaire housing (10 110), the cover (70, 80) and the holding element (50, 150), are each available in at least two different variants, which can be combined in any way, wherein in order to form the luminaire (1) according to desired output properties and/or properties with regard to heat dissipation or moisture resistance, a suitable luminaire housing (10, 110), a cover (70, 80) and a holding element (50, 150) are in each case selected and the selected components are assembled to form the luminaire (1).

Abstract: A trough-shaped lamp housing (10) which is integrally produced in a deep-drawing process and has a housing bottom (11) and a housing wall (12) which laterally surrounds the housing bottom (11) and which, together with the housing bottom (11), delimits a lamp chamber, wherein the housing bottom (11) has a planar region (20, 25) for receiving at least one lamp component (120, 130) in a planar manner, wherein the planar region (20, 25) is circumferentially surrounded by a raised and/or recessed annular structure (35) which is integrally formed in a deep-drawing process, and wherein the housing wall (12) discontinues at the circumferential edge thereof that faces away from the housing bottom (11) in a circumferentially closed edge portion (16), which lies in a plane.

Abstract: An austenitic steel alloy is provided having excellent corrosion resistance under high-temperature loading of more than 600° C. and up to 800° C., with the alloy having the following proposed chemical composition (in wt. %), consisting essentially of: C: 0.01 to 0.10; Si: max. 0.75; Mn: max. 2.00; P: max. 0.03; S: max. 0.03; Cr: 23 to 27; Ni: 17 to 23; Nb: 0.2 to 0.6; N: 0.15 to 0.35; the remainder being Fe and melting-related impurities. In a particular configuration a tubular body is made from this steel alloy, where an absorber pipe of a solar receiver of a solar power installation may be made from the tubular body. Still further, a solar receiver comprising this absorber pipe is provided, as well as a method for producing a tubular body from the steel alloy.

Abstract: A device for producing dental ceramic, with a CAD/CAM device for preparing a compression molding cavity for producing the dental ceramic, wherein a CAD device thereof, on the basis of scan data, determines the shape of the dental ceramic to be produced, and wherein a CAM device thereof produces a positive model, on the basis of which the mold cavity is produced via a sacrificial mold (muffle). The CAM device also determines the distribution and the transfer between different ceramic types, i.e. types of ceramics that differ at least in respect of one parameter in terms of material, appearance, strength or the like, wherein the CAM device for adjusting the distribution and the transfer determines the position and the dimensions of a feed channel between a muffle rod and the compression molding cavity for producing the dental ceramic according to at least one of these parameters.

Abstract: A luminaire for generating direct lighting and indirect lighting including an LED light source for generating light and a light guide plate having a first main surface and a second main surface, which is connected to the first main surface marginally via a narrow side face, wherein the LED light source is arranged in such a way that the light is radiated into the light guide plate via the narrow side face and subsequently one part of the light is emitted for generating the direct lighting via the first large main surface. Furthermore, a reflector is provided, which is arranged adjacent to the second main surface, wherein the reflector has at least one light-transmissive region configured in such a way that a further part of the light is emitted for generating the indirect lighting via the second main surface through the light-transmissive region.

Abstract: A flat reflector element for planar arrangement on an LED circuit board has light-passage openings that correspond to the positions of the LEDs, wherein projecting contact protection elements are provided at the periphery of each of said light-passage openings.

Abstract: Centrifugation systems are provided that have a non-contact seal assemblies including an upper guard and a skirted pivot, as well as a pressure source that provides a gas flow between the upper guard and a surface of the skirted pivot. In some embodiments, the non-contact seal assembly further includes a lower guard having one or more capillary channels defined on an upper surface.

Abstract: A frame-like cover element for a luminaire including a box-shaped luminaire housing, which has a light exit opening on one side, is designed to be arranged on the housing in the region of the light exit opening thereof and in the process to enclose, in frame-like fashion, a light output region of the luminaire, wherein the cover element is connected integrally to at least one optical element, which extend into the inner region of the luminaire housing and is intended to influence the light output by the luminaire.

Abstract: A light fitting has an LED light source for generating light, and a light-guiding panel, the LED light source being arranged in such a way that the light is coupled into the light-guiding panel. In addition, a support element for supporting the light-guiding panel and an LED light source carrier element are provided, the LED light source carrier element being mounted such that it is displaceable relative to the support element.

Abstract: An arrangement for light emission has at least one LED light-emitting means (110) in an elongate arrangement, a support element (120), which supports the LED light-emitting means (110) and a light emission element (130) which can be connected to the support element (120). The light emission element (130) is designed to modify the light emission characteristic of the LED light-emitting means (110) to give the light emission characteristic of at least one fluorescent tube.

Abstract: A device for producing dental ceramic, with a CAD/CAM device for preparing a compression molding cavity for producing the dental ceramic, wherein a CAD device thereof, on the basis of scan data, determines the shape of the dental ceramic to be produced, and wherein a CAM device thereof produces a positive model, on the basis of which the mold cavity is produced via a sacrificial mold (muffle). The CAM device also determines the distribution and the transfer between different ceramic types, i.e. types of ceramics that differ at least in respect of one parameter in terms of material, appearance, strength or the like, wherein the CAM device for adjusting the distribution and the transfer determines the position and the dimensions of a feed channel between a muffle rod and the compression molding cavity for producing the dental ceramic according to at least one of these parameters.

Abstract: A flat reflector element for planar arrangement on an LED circuit board has light-passage openings that correspond to the positions of the LEDs, wherein projecting contact protection elements are provided at the periphery of each of said light-passage openings.

Abstract: An LED module has an LED printed circuit board having a flat surface region, an LED for generating a light, wherein the LED is arranged on the surface region of the LED printed circuit board, and a shock-hazard protection element for providing protection from touching contact being made with the surface region of the LED printed circuit board or the LED, wherein the shock-hazard protection element has a flat surface region, which is arranged so as to be oriented parallel to the flat surface region of the LED printed circuit board, wherein the shock-hazard protection element furthermore has at least one light-influencing region for optically influencing the light, which light-influencing region is configured so as to protrude from the flat surface region of the shock-hazard protection element.

Abstract: A frame-like cover element for a luminaire including a box-shaped luminaire housing, which has a light exit opening on one side, is designed to be arranged on the housing in the region of the light exit opening thereof and in the process to enclose, in frame-like fashion, a light output region of the luminaire, wherein the cover element is connected integrally to at least one optical element, which extend into the inner region of the luminaire housing and is intended to influence the light output by the luminaire.

Abstract: A light fitting has an LED light source for generating light, and a light-guiding panel, the LED light source being arranged in such a way that the light is coupled into the light-guiding panel. In addition, a support element for supporting the light-guiding panel and an LED light source carrier element are provided, the LED light source carrier element being mounted such that it is displaceable relative to the support element.

Abstract: A luminaire for generating direct lighting and indirect lighting including an LED light source for generating light and a light guide plate having a first main surface and a second main surface, which is connected to the first main surface marginally via a narrow side face, wherein the LED light source is arranged in such a way that the light is radiated into the light guide plate via the narrow side face and subsequently one part of the light is emitted for generating the direct lighting via the first large main surface. Furthermore, a reflector is provided, which is arranged adjacent to the second main surface, wherein the reflector has at least one light-transmissive region configured in such a way that a further part of the light is emitted for generating the indirect lighting via the second main surface through the light-transmissive region.