Abstract: Various embodiments may relate to a method for irradiating an imaging optical system of a projector. The imaging optical system is irradiated with light of different colors from different semiconductor light sources sequentially, both with individual colors and superimposed as mixed light.

Abstract: Various embodiments may relate to a device for providing electromagnetic radiation, including a radiation assembly for generating excitation radiation, and at least one conversion element for generating conversion radiation, which has at least one first phosphor and which is arranged at a distance to the radiation assembly in a beam path of the excitation radiation. As the first phosphor, a nitridosilicate of the type M2Si5N8:D is used, wherein D= activator and wherein M is selected from the group barium, strontium, calcium alone or in combination, wherein the mean grain size d50 of the phosphor is at least 10 ?m.

Abstract: A lighting device includes an elongated profiled body including at least one light permeable material, e.g. a polymeric material, having a mouth portion where an e.g. white light radiation source assembly is arranged which includes one or more electrically powered light radiation sources facing the profiled body. The light radiation emitted by the light radiation source assembly propagates through the light permeable material of the profiled body. The material of the profiled body includes pigments and is at least in part light diffusive, whereby, by propagating through profiled body, the light radiation becomes a colored light radiation of a color determined by the pigments and with a homogeneous near field distribution.

Abstract: A lighting device includes at least one excitation radiation source designed to emit excitation radiation; a wavelength conversion arrangement, which is arranged in such a way that excitation radiation can be radiated onto a wavelength conversion element. The wavelength conversion element is designed to convert excitation radiation into conversion light. An unavoidable non-converted part of the excitation radiation is reflected by the wavelength conversion element. The device further includes a unit for collimating the excitation radiation to form at least one collimated excitation beam; a unit for directing the at least one collimated excitation beam onto the at least one wavelength conversion element; a unit, which is arranged between collimation optical unit and converging optical unit and has at least one region for reflecting that part of the at least one excitation beam which is not converted, but rather is reflected by the at least one wavelength conversion element.

Abstract: A method for generating a light emission pattern by illuminating at least one phosphor surface by at least one primary light beam is provided. The method includes: directing the primary light beam only onto a partial surface of the entire illuminatable phosphor surface; and illuminating at least one partial region of said partial surface more intensely than in the case of uniform illumination of the illuminatable phosphor surface.

Abstract: A method for producing a lighting module is provided. The method includes providing a light source substrate populated with at least one semiconductor light source, laterally surrounding the at least one semiconductor light source by a wall, applying at least one prefabricated diffuser element to at least one semiconductor light source, introducing potting compound into the space surrounded by the wall up to a height at which both the at least one semiconductor light source, and potting at least part of the at least one diffuser element.

Abstract: A headlight device is disclosed. In an embodiment a headlight device includes a laser light source configured to emit collimated primary radiation, a conversion element comprising conversion regions configured to at least partly convert the collimated primary radiation into secondary radiation and to form luminous regions during operation, and separating webs which separate the conversion regions from one another, wherein the separating webs are nontransmissive to the collimated primary radiation and secondary radiation and a deflection unit configured to direct the collimated primary radiation onto the conversion element and to guide the collimated primary radiation as a scanning beam over partial regions of the conversion element.

Abstract: The invention provides an optoelectronic semiconductor component and a method for producing an optoelectronic semiconductor component (10), comprising the following steps: A) arranging at least one semiconductor chip (2) on a carrier (1), B) applying an electrically insulating photoresist (3) to a top side (1a) of the carrier (1) and to the semiconductor chip (2), C) curing the photoresist (3) with a baking step, D) patterning the photoresist (3) by exposure, F) developing the photoresist (3), wherein the photoresist (3) is removed at least from a radiation penetration surface (2b) of the semiconductor chip (2), G) again curing the photoresist (3) with a baking step, and H) applying an electrically conductive contact layer (4) to the photoresist (3), wherein the electrically conductive contact layer (4) is in places at a distance (A) from a marginal surface (3a) of the photoresist (3) which faces towards the semiconductor chip (2), wherein the marginal surface (3a) facing towards the semiconductor chip (2) is

Abstract: According to an embodiment, a polyhedron may be provided. The polyhedron may include a first luminescent face; and a second luminescent face.

Abstract: The invention proposes a lighting device (1) comprising a wavelength conversion arrangement (12) and a static band-stop filter (14). The wavelength conversion arrangement (12) comprises two wavelength conversion elements, which can be excited to emit conversion light by means of excitation radiation emitted by an excitation source (2). In order to increase the color space which is addressable by means of the two wavelength conversion elements, with the aid of the band-stop filter (14) the shorter dominant wavelength of the conversion light of both wavelength conversion elements is shortened and the longer dominant wavelength is lengthened. For this purpose, the peak wavelength of the band-stop filter (14) is chosen such that it lies between the two dominant wavelengths of the conversion light emitted by the two wavelength conversion elements. The use of a static band-stop filter (14) designed in this way makes it possible to dispense with separate filter elements for each wavelength conversion element.

Abstract: The invention relates to a circuit assembly for operating at least one lighting means, comprising at least one master device; at least one slave device; and a bus system having at least one bus, by means of which bus system the at least one master device and the at least one slave device are coupled; wherein the bus is designed as a two-wire cable, wherein the at least one master device has at least one feeding connection, which is coupled to the bus and is designed to place a control signal on the bus, wherein the at least one master device is coupled to a first voltage supply; wherein the at least one slave device comprises a non-feeding connection, which is coupled to the bus, wherein the slave device comprises a connection for at least one lighting means, a second voltage supply, and a read-out device for reading out the control signal on the bus, wherein the read-out device comprises a potential-isolating device and wherein the connection for the at least one lighting means and the second voltage supply

Abstract: The Power Supply Unit comprises an output providing electrical power between a positive power supply line and a common ground line and a communication line. An adjustable current generator responsive to an internal measurement signal generates an output current at the output, and a voltage source is coupled to the communication line. A current measurement unit measures a current through the communication line and generates the internal measurement signal depending on the measured current through the communication line. Specifically, the Power Supply Unit is configured to determine the voltage drop on the common ground line by applying via the voltage source two different voltages to the communication line.

Abstract: The present invention relates to a red phosphor, which includes an element A, magnesium, aluminum, oxygen, and manganese in Chemical Formula (1) that is (A1?xMgx)4AI14?yO25:?Mn4+. The element A in the Chemical Formula (1) is at least one of strontium, barium, and calcium, and x and y in the Chemical Formula (1) satisfy the relational expressions 0<=x<1 and 0<y<1.

Abstract: The invention relates to a lighting apparatus, having a quadrangular lighting surface, wherein the quadrangular lighting surface has a first lateral edge a and an opposing lateral edge ag, wherein the quadrangular lighting surface has a second lateral edge b and an opposing lateral edge bg, wherein the quadrangular lighting surface is constructed modularly from at least a first lighting module and further lighting modules. The at least first lighting module is triangular, wherein the base surface of the first lighting module has a lateral edge b1 and a vertex E1 opposing this lateral edge b1, wherein a connecting path between the vertex E1 and an intersection point L1 of a normal line with the lateral edge b1 is a height h1 of the first lighting module, where 0<h1?a and b=b1.

Abstract: A lighting device may include a light radiation source board carrying at least one electrically powered light radiation source, e.g. a LED source, and a frame-like housing having a window, the board of the light radiation source being arranged in the housing with the light radiation source facing window. A glass cover covering the window is inserted in the housing by sliding along the housing or by tilting against the housing.

Abstract: A method for operating a lighting device comprising n>1 light generating units configured to generate a respective primary light beam and comprising a phosphor surface spaced apart from the light generating units is provided. The method may include illuminating an i-th partial surface of the phosphor surface by i light generating units if a desired positive brightness value on this illuminated partial surface falls below or reaches a next higher i-th brightness threshold value from a group of n?1 positive, progressively increasing brightness threshold values; otherwise illuminating by n light generating units; wherein i and n are whole natural numbers and i=[1, . . . , n] holds true.

Abstract: Various embodiments may relate to a lighting module, including a first printed circuit board, on which at least one light source is arranged, a covering element, which at least partially covers the first printed circuit board, and a second printed circuit board, on which at least one electronic component is arranged, wherein the second printed circuit board is fastened to the covering element and is electrically connected to the first printed circuit board.

Abstract: A connecting element for connecting at least two rails adapted for mounting semiconductor light sources. The connecting element has a bottom wall and two side walls emerging from the bottom wall on opposite sides. The walls form a U-shaped profile. The connecting element is configured for accommodating at least one rail adapted for mounting semiconductor light sources in an accommodating area delimited by the bottom wall and the side walls, and the connecting element has latching elements arranged with a regular longitudinal pattern on at least one wall for latching with the accommodated rail.

Abstract: A method for passing an electrical cable through a hole in a housing of a unit of electrical equipment is provided. The method may include: fitting onto the cable a tubular, mushroom-shaped male member comprising a stem with a threaded portion and a portion with enlarged head; inserting into the hole the cable having the male member fitted thereon extending through said hole with said portion with enlarged head abutting against the periphery of the hole externally to the housing and said threaded portion protruding inside the housing; and retaining said male member in the hole by coupling with said threaded portion that protrudes inside the housing an annular female member in the form of a nut co-operating with the periphery of the hole inside said housing to counter the movement of the female member with respect to the housing.

Abstract: Various embodiments may relate to an optical unit for a light-emitting structure, a light-emitting structure, and a light box comprising the light-emitting structure. The optical unit includes a body and a light-blocking structure, wherein the body includes at least one reflective surface, wherein the light-blocking structure includes a first light-blocking structure and a second light-blocking structure, wherein the first light-blocking structure is formed in one piece with the body, and the second light-blocking structure is arranged in the first light-blocking structure, wherein the first light-blocking structure is arranged to at least partially surround the reflective surface, to block the light leaks from the reflective surface by the second light-blocking structure.