Abstract: A device for emitting a first and a second electromagnetic radiation (13, 23, 53) via a radiation coupling-out surface (5) along a device beam path. A first radiation-emitting arrangement (1) has at least one first radiation-emitting component (10) which emits the first electromagnetic radiation (13). A second radiation-emitting arrangement (2) has at least one second radiation-emitting component (20) which emits the second electromagnetic radiation (23). Furthermore, the device has a radiation-directing element (3), wherein the radiation coupling-out surface (5) is arranged in the beam path of the second radiation-emitting arrangement (2) and the radiation-directing element (3) directs the first electromagnetic radiation (13) to the radiation coupling-out surface (5).

Abstract: A method for manufacturing an inductive component which is formed from a plurality of layers, wherein the method comprises the steps of a) arrangement of an electrically conductive material as a winding of the component on a first non-magnetic, dielectric ceramic layer; b) formation of at least one cutout which passes all the way through in the non-magnetic, dielectric ceramic layer; c) arrangement of a first magnetic ceramic layer on an upper face and a second magnetic ceramic layer on a lower face of the non-magnetic, dielectric ceramic layer; and d) carrying out a process step in which at least one of the magnetic ceramic layers is plastically deformed such that contact is made with the two magnetic ceramic layers in the area of the cutout, and the two magnetic ceramic layers form a magnetic core of the component.

Abstract: The invention relates to a high-pressure mercury discharge lamp for DC operation at a nominal wattage of more than 1.5 kW. Said high-pressure mercury discharge lamp comprises an anode, at least some areas of which are made of a material containing at least some tungsten, said material having a grain number of more than 200 grains per mm2 and a density of more than 19.05 g/cm3.

Abstract: The invention relates to an improved electrode rod (1) holder with the aid of a metal tube piece 5 and a metal plate 6 connected in a fixed manner to the metal tube piece for a mercury ultra-high pressure discharge lamp.

Abstract: The invention relates to a mercury-free low pressure discharge lamp with a discharge vessel having an ionizable filling. The surface temperature of the discharge vessel, and thus the temperature of the ionizable filling, can be adjusted at least in some sections such that an emitting substance can produce the radiation required for the excitation of the luminescent substance. The temperature of the fluid is preferably adjusted in a temperature control circuit, using a temperature sensor, a pump and a heating device.

Abstract: LED with a low color temperature up to 3500 K, comprising a blue-emitting LED with two phosphors in front of it, a first phosphor from the class of the oxynitridosilicates, having a cation M, which is doped with divalent Europium, and has the empirical formula M(1-c)Si2O2N2:Dc, with M=Sr, or M=Sr(1-x-y)BayCax with x+y<0.5 being used, the oxynitridosilicate completely or predominantly comprising the high-temperature-stable modification HT, and a second phosphor from the class of the nitridosilicates of formula (Ca,Sr)2Si5N8:Eu.

Abstract: A modular lighting system having a plurality of light modules, which each have a plurality of light modules accommodating at least one light-emitting diode module. The light modules have at least two mounting clearances, which run substantially parallel, and a mounting rod passes through each mounting clearance for mechanical fixing and electrical contact-making purposes. The mounting clearances are formed on the luminaire body. A lighting arrangement of such lighting systems is also disclosed.

Abstract: An optoelectronic device for emitting electromagnetic radiation with a controllable emission intensity comprises, at least one optoelectronic component (100) which is adapted for generating, in operation, electromagnetic radiation (90), a first electronic element (200) and a second electronic element (300). The first electronic element (200) is adapted for controlling the emission intensity of the electromagnetic radiation (90), generated by the optoelectronic component (100), within a first intensity range, and the second electronic element (300) is adapted for controlling the emission intensity of the electromagnetic radiation (90), generated by the optoelectronic component (100), within a second intensity range.

Abstract: The invention relates to an illumination device (1) comprising at least one preferably ceramic substrate plate (2), at least one luminous element (3) arranged on a front side (A) of the substrate plate (2) in particular at least one light emitting diode (LED) (3), and at least one preferably metallic heat sink (4) connected, in particular adhesively bonded and/or soldered, to a rear side (B) of the substrate plate (2) over a large area, wherein the coefficients of thermal expansion of substrate plate (2) and heat sink (4) differ at least by the factor 1.5, in particular by a factor greater than 2. The heat sink (4) has at least one preferably linear recess (6) on its side facing the rear side (B) of the substrate plate (2).

Abstract: The invention relates to a mercury source for a low-pressure discharge lamp comprising an amalgam body which is arranged on a front surface of a wire or enclosed in a perforated structure. The amalgam body or the perforated structure is provided with a protective coating with a getter effect. The invention enables a simple production process to be implemented with low costs in terms of materials.

Abstract: A retaining frame (2; 17) with at least one optical element (3) secured thereto, wherein the at least one optical element (3) is connected to the retaining frame (2; 17) by calking, gluing in place, snap-fitting, clamping, shrinking, ultrasonic welding or pressing-in.

Abstract: A lighting unit for vehicle headlights comprising a light-emitting diode device (500), and a housing (200), in the interior of which are arranged components of an operating circuit for operating the light-emitting diode device (500), wherein the housing (200) is composed of electrically insulating material, electrical connections (222) for the voltage supply of the lighting unit are embedded in the housing (200), and the housing (200) has adjustment means (213a, 213b, 213c) for orienting the lighting unit in a vehicle headlight; wherein the light-emitting diode device (500) is arranged on a surface (112) of a heat sink (100) composed of thermally conductive material; and wherein the heat sink (100) forms a bearing surface (120a) for an external cooling system, said bearing surface being arranged at an outer side of the housing

Abstract: A dielectric barrier discharge lamp (1) configured as a coaxial double tube comprises an inner tube (3), which is disposed coaxially inside an outer tube (2). The inner tube (3) comprises an inner electrode tube (8) provided for receiving the inner electrode (7) and a getter tube (10) provided for receiving getter material (9). The inner electrode tube (8) and getter tube (10) are separated from each other in a gastight manner by a partition (11).

Abstract: A lighting system comprising an electric lamp (1), especially a fluorescent lamp, which is provided with a first (11) and at least one second lamp coil (12). The lighting system further comprises an electronic ballast (2) that is electrically connected to the lamp coils (11, 12) and at least two additional light sources (31a to 31c; 32a to 32c) which are interconnected in parallel. The parallel connection (3) of the two additional light sources (31a to 31c; 32a to 32c) are serially connected between the first (11) and the second lamp coil (12).

Abstract: The invention relates to a discharge lamp, in particular a high-pressure discharge lamp, having a discharge vessel (1) which has two diametrically opposite necks (2, 3) into each of which a holding rod (5, 10) is fused at least in places, with an electrode (4, 9) which extends into the discharge vessel (1) being arranged on each holding rod (5, 10), and with in each case at least one annular plate (7, 12) at least partially clasping a holding rod (5, 10), with at least one of the annular plates (7, 12) being arranged in the discharge vessel (1).

Abstract: A circuit arrangement for providing a lamp wattage to a high-pressure gas discharge lamp (Lp), the arrangement includes an inverter (T1, T2) which supplies to the high-pressure gas discharge lamp (Lp), a lamp current (IL) which is essentially an alternating current with an operating frequency which is frequency modulated in a frequency range between a minimum frequency and a maximum frequency, an arithmetic mean is defined which is equal to the temporal mean of the frequency values for the operating frequency, swept in a lamp operation. A limit mean is defined which is equal to one half of the sum of minimum frequency and maximum frequency and is less that the arithmetic mean.

Abstract: A light source comprises a light-emitting device (1) emitting electromagnetic radiation from an emitting surface (18) and an optical element (2) having a light input surface (21), a light output surface (22) and side surfaces (23) connecting the light input surface (21) to the light output surface (22). The light input surface (21) is located in the optical path of the light-emitting device (1), the electromagnetic radiation entering the optical element (2) through the light input surface (21), and the light input surface (21) has a concave curvature and an area being smaller than the area of the light output surface (22).

Abstract: A circuit arrangement for starting a discharge lamp, with a primary circuit, which comprises a series circuit comprising an inductance (L), a starting capacitor (C1) and a first switch (SG), the switch being in the form of a threshold value switch, and the inductance comprising the primary winding (L1) of the starting transformer (TR), and the primary circuit being designed to generate a starting pulse for the discharge lamp at the secondary winding (L2) of a starting transformer (TR), the primary circuit having two decoupled voltages, a first voltage, which is correlated substantially with the energy of the starting pulse, and a second voltage, which controls the operating time of the switch, the first voltage being lower than the threshold value of the first switch.

Abstract: A luminous means having a first, light-transmissive carrier (1), a second carrier (3), and an organic layer stack (4), which is arranged between the first carrier (1) and the second carrier (3), at least one electrical connection region (5) being provided on the rear side (4), which faces away from the first carrier (1), of the second carrier (3), which connection region is provided for connecting the luminous means (20) to a further, identical luminous means. In addition, the invention specifies a lighting device with such a luminous means.