Abstract: A lighting module includes a base plate for fixing to a mounting surface, and a reflector body carrying a printed circuit board with one or more electrical light sources such as high power LEDs. The printed circuit board (includes electrical contact pins to the electrical light sources. The base plate and the reflector body are provided with complementary coupling formations for snap-like coupling the base plate and the reflector body with an electrical line interposed in between for feeding the light sources with the electrical contact pins electrically contacting the electrical line. The module may include force-generating formations to urge the printed circuit board against the base plate to promote heat transfer in between.

Abstract: A lamp which has a lamp glass envelope (14) having contact pins (16) projecting from its end (15) and which is held in a socket receptacle (9) having an insulator (2, 6), wherein the insulator (2, 6) holds a small metallic tube (1) between a contact pin (16) of the lamp envelope (14) and a current-feeding connecting cable (4) in at least one through hole, to which small tube (1) the contact pin (16) is crimped and the connecting cable (4) is connected.

Abstract: A heatsink (2), comprising a heatsink body (3) extending between two endsides (4, 5) of the heatsink body. The heatsink is designed for introducing the heatsink with the first endside ahead into an aperture (16), which is provided in a wall (17), and for a thermal conductive connection of a heat-generating element (14) to the second endside, with a main direction of extent (6) of the heatsink body (3) from the first endside (4) to the second endside (5) being bent or sharply bent. Furthermore, an illumination system with such a heatsink is disclosed.

Abstract: An illumination device comprises at least one light module (1) wherein the light module (1) comprises a circuit board (2) to which a plurality of groups (30) of light sources (3a, 3b, 3c) are applied and a carrier (6) on which the light module (1) is fixed. A display apparatus comprising such an illumination device is also disclosed.

Abstract: A method for setting a color location is provided. The method may include providing n luminous sources of which n-3 luminous sources have been, or are preset; determining a color location difference of the n luminous sources from a desired color location; and setting the 3 luminous sources not preset are set such that the desired color location is achieved.

Abstract: A circuit arrangement with two semiconductor switches connected in series between a first potential connection and a second potential connection is provided. The circuit arrangement may include an inductive element connected in series between the two potential connections and by elements of an action chain of such a nature that, under predefined conditions, a voltage drop across the inductive element effects the switching off of at least one of the semiconductor switches.

Abstract: A circuit arrangement for operating a high-pressure discharge lamp with an operating circuit for the high-pressure discharge lamp with an input for receiving a switch-on/switch-off signal for the high-pressure discharge lamp and at least one output for providing an operating signal to the high-pressure discharge lamp, wherein the operating circuit is designed to reduce the power of the operating signal provided at the at least one output once a switch-off signal has been received at its input, wherein the operating circuit furthermore designed to provide the operating signal as an AC signal above a predeterminable power threshold value and as a quasi DC signal below the predeterminable power threshold value.

Abstract: A method for setting a color locus of at least one luminous source is provided. The method may include determining a temperature, and setting the color locus of the at least one luminous source depending on the temperature determined.

Abstract: An emergency supply circuit for an electronic ballast may include: an output line to feed a supply input of the ballast; a first line to receive a mains supply signal; a second line to receive an emergency supply signal from a battery, with a converter interposed in said second line to boost said supply signal, a switch to alternatively connect said output line to said first or said second line; a controller sensitive to the absence of said mains supply signal and to the charge level of said battery, said controller to produce switching of said switch to connect said output line to said second line in the absence of said mains supply signal on said first line, whereby said output line receives said supply signal, and dimming interface circuitry to drive said dimming control input of said ballast when said output line is connected to said second feed line.

Abstract: A lighting system comprising a first light source, which is adapted to generate light of a first color, and at least one second light source, which is adapted to generate light of a second color, wherein the light sources are driven so as to generate a predeterminable color sequence, wherein the light sources are operated by a common control unit and driven by said control unit in the sequence required for generating the predeterminable color sequence. The light sources are connected in parallel and are electrically coupled to an energy supply unit via a first circuit node. The lighting system comprises a regulator unit and coupled to the control unit via a signal line, and wherein the control unit is adapted to predetermine a desired energy output of the energy supply unit via the regulator unit, to be precise depending on the individual color within the color sequence.

Abstract: The lighting device has a stack of functional layers that in turn have at least: an optics layer with at least one optical element; a light source layer with at least one light source that is adapted to radiate light through the optics layer to an exterior; a printed circuit board connected to an electronic driver to drive the lighting device; and a cooling layer with at least one cooling element for cooling at least the at least one light source.

Abstract: An LED module for backlighting a screen comprising at least one LED, (LR, LG1, LG2, LB), a sensor device for detecting at least one physical quantity, and a drive device for driving the at least one LED (LR, LG1, LG2, LB) depending on a signal from the sensor device.

Abstract: A reflector may have a reflective surface, wherein the contour of the reflective surface is traversed by a Bézier curve.

Abstract: An illumination arrangement comprising a plurality of light-emitting semiconductor components (1), arranged in a row, a diffuser (2), which is illuminated by the light-emitting semiconductor components during operation of the illumination arrangement, intermixes light emitted by the semiconductor components during operation and has a light coupling-out area (200) remote from the semiconductor components, and two mutually opposite, reflective longitudinal side faces (3), between which the row of light-emitting semiconductor components is arranged, which run perpendicular or obliquely with respect to the light coupling-out area, and which reflect at least part of the light emitted by the light-emitting semiconductor components during operation in the direction toward the light coupling-out area.

Abstract: An illumination unit including a discharge lamp is provided. The discharge lamp may have an electrode, and a reflector with a reflective surface and an optical axis, the electrode having in a sectional plane, which includes the optical axis, a sectional area, and a projection of the reflective surface of one of the halves of the reflector that are separated by the section perpendicularly into the sectional plane along optical paths that are free for the light of the illumination unit resulting in a projected area, wherein the overlap of the projected area and the sectional area is smaller than the area of the electrode in a plane which is perpendicular to the sectional plane and includes the optical axis.

Abstract: In various embodiments, a high-pressure discharge lamp is provided. The high-pressure discharge lamp may include a ceramic discharge vessel which encloses a discharge volume, wherein a filling containing sodium halides, rare earth halides, mercury and inert gas is accommodated in the discharge volume, wherein the filling at the same time includes the rare earths Tm and Gd, the relative proportions between Gd and Tm, considered as a molar ratio, lying in the range 0.1 to 1.

Abstract: In various embodiments, a method for obtaining a conduction angle of a trailing edge dimmer is provided. The method may include determining a time point t0 when the trailing edge dimmer starts to be conductive; determining an earliest time point t1 when a deviation from an ideal waveform appears; and determining the conduction angle t1-t0 of the trailing edge dimmer based on the earliest time point t1 when the deviation from the ideal waveform appears and the time point t0 when the trailing edge dimmer starts to be conductive.

Abstract: An airfield lighting device, comprising: at least one first light-emitting diode (LED) on a first base body; a first thermally conductive tube with a heat transmission medium; a first heat sink; and a housing, in which the first base body and the first thermally conductive tube are arranged. The first thermally conductive tube is thermally coupled to the first base body and to the first heat sink. The heat transmission medium can circulate in the first thermally conductive tube, such that heat which is produced by the at least one first LED during operation can be dissipated from the first base body to the first heat sink.

Abstract: An electronic ballast for an electrical lamp (2) provided with a first (21) and a second filament (22), includes a heating device which is used to heat the filaments (21, 22) and includes a resonance circuit (5), and an evaluation unit (11) designed for the evaluation of at least one measuring value of an electrical parameter during pre-determinable adjustments of operating conditions of the resonance circuit (5). The number of filaments (21, 22) of the electrical lamp (2) in electrical contact with the electronic ballast (1) can be identified according to the measuring value, and the electrical lamp (2) can be switched on by the electronic ballast (1) according to the identified number. A method for operating an electrical lamp by an electronic ballast is also described.

Abstract: A lamp may include at least one housing; a heat source connected thereto; and a base for connection to a lampholder, wherein the base has at least one heat dissipation surface, and wherein at least one heat source is thermally conductively connected to at least one heat dissipation surface.