Abstract: Various embodiments may relate to an LED retrofit lamp, including a lamp tube, an LED light engine disposed in the lamp tube, and end caps arranged at two open ends of the lamp tube, the LED light engine including a circuit board and at least one light source disposed on the circuit board. The LED retrofit lamp further includes one pair of retaining structures fixed at two opposite ends of the circuit board, respectively, and at least one pair of elastic tension structures connected to the retaining structures. The elastic tension structure goes through the end cap from one side of the end cap and is locked at the other side of the end cap. In addition, various embodiments may also relate to a process for manufacturing the LED retrofit lamp.

Abstract: A method for manufacturing a phosphor device may include: providing an optical transmitting member having a first end face and a second end face, whereby the optical transmitting member is designed for guiding exciting light entering through the first end face onto a phosphor layer arranged on the second end face, whereby at least a part of the exciting light is being wavelength-converted by the phosphor layer, and whereby the optical transmitting member is further designed for at least partially collecting and guiding the light converted by the phosphor layer; attaching an optically transparent electrode on the second end face of the optical transmitting member; providing a phosphor and a counter-electrode designed for electrophoretic deposition of the phosphor; and depositing a phosphor layer on the optically transparent electrode by means of electrophoretic deposition, thereby using the optically transparent electrode as a coating electrode.

Abstract: A lighting device may include a plurality of laser light sources, and an optical apparatus for concentrating the light emitted by the laser light sources. The optical apparatus has at least one ring-shaped reflector having a parabolic light reflection surface and at least one light conversion element for light wavelength conversion, which is arranged at the focus of the at least one ring-shaped reflector.

Abstract: An LED control circuit for controlling an LED illuminating device is disclosed. The LED illuminating device includes at least serially connected load group, and the LED control circuit includes: a conversion module configured to convert an input voltage to an output voltage, and to output a working current as a sample current; a reference voltage generating module configured to generate a reference voltage; a control module configured to compare a sample voltage corresponding to the sample current with the reference voltage, and to output a control signal to the conversion module according to a comparison result; and a load short circuit module including a plurality of switches each connected in parallel with respective load group for performing a short circuit control on respective load group in response to a switching signal. A controlling method of such LED control circuit is also disclosed.

Abstract: Provide a plurality of lighting modules. Connect together a plurality of the lighting modules for forming a series of lighting modules. Cut the series of lighting modules into lighting devices having a lighting module. Interconnection elements of the last lighting module of each lighting device are cut along their transverse axes. Each lighting module includes a first set of contacts placed at a first end of said lighting module and a second set of contacts placed in corresponding positions at a second end of said lighting module. Each lighting module is connected to the next lighting module by means of interconnection elements which connect the first set of contacts of each lighting module to the second set of contacts of the next lighting module. Interconnection elements include a base plate and a hollow portion in order to form female connectors when said interconnection elements are cut along their transverse axis.

Abstract: A high-pressure discharge lamp having an ignition aid, may include a discharge vessel which is fitted in an outer bulb, wherein a UV enhancer is fitted as an ignition aid in the outer bulb, wherein the UV enhancer comprises a UV-transparent can-like container having an inner wall and end side and longitudinal axis, the container enclosing with its inner wall a cavity which is filled with a gas that can emit UV radiation, an inner vent electrode, which has at least one bend or kink, being fitted in the cavity in such a way that a bend or kink lie as close as possible to the inner wall of the container, and wherein an external electrode is applied externally in the vicinity of the container.

Abstract: The LED illumination system according to various embodiments is configurated in such a manner that the LED lighting device is installed in an existing straight-tube fluorescent lamp luminaire, and the LED lamp is connected to the existing sockets. The characteristic of the output from the LED lighting device connected to either inter-terminal section A on the ends of the LED lamp is to be different from that of an existing fluorescent lamp lighting device. The LED lamp is provided with lighting device output detector for detecting the output from the LED lighting device and protector for cutting off the input to the LED lamp when the output detected by the lighting device output detector is outside of a predetermined range.

Abstract: A light module comprises first excitation radiation source emitting first excitation radiation having a first optical property value, second excitation radiation source emitting second excitation radiation having a second optical property value which differs from the first value. At irradiation region (P), a phosphor and an optical element, which is at least partly reflective with maintenance of the optical property, are arranged alternately or simultaneously. A first dichroic mirror is arranged between the first excitation radiation source and irradiation region (P), and a second dichroic mirror is arranged between the second excitation radiation source and irradiation region (P). The first optical path proceeding from the first excitation radiation source successively comprises the first dichroic mirror, irradiation region (P) and the second dichroic mirror.

Abstract: A circuit arrangement may include: an inverter comprising first electronic and second electronic switches coupled in series between a first and second input connections to form a bridge center point; a drive apparatus for the first electronic switch and the second electronic switch; a current-measuring apparatus which is designed and arranged to measure the current through the inverter; a short-circuiting apparatus which is designed to short-circuit the output when the output voltage exceeds a first predefinable threshold value; and an evaluation apparatus which is coupled to the current-measuring apparatus and is designed to determine the mean value of the current through the inverter and, when the mean value undershoots a second predefinable threshold value, to drive the drive apparatus in such a manner that the latter influences the operation of the inverter, by driving the electronic switches in such a manner that the current in the short-circuiting apparatus is reduced.

Abstract: An optoelectronic module 1 having at least a first 2A and a second 2B radiation-emitting source and a first optical element 5 including a cavity 10 wherein the surface 5A of the cavity 10 is able to reflect the radiation 3A, 3B of the at least two radiation sources. An outlet 15 in the optical element 5 is provided for coupling radiation out of the cavity 10, wherein the radiation emitted by the radiation sources 2A, 2B is reflected by the surface 5A of the cavity resulting in a mixing of the radiation.

Abstract: A phosphor device comprising a carrier member having upper and lower faces; a reflecting member having a side surface portion and a bottom portion, the reflecting member being arranged at the upper face of the carrier member; a phosphor layer being embedded in the reflecting member; a transmitting member having a first end face and a second end face, the transmitting member being arranged on the phosphor layer, wherein the first end face of the transmitting member completely covers the top portion of the phosphor layer.

Abstract: In various embodiments, a method for operating high-pressure discharge lamps, in which high-pressure discharge lamps are operated at the same time in a different thermodynamic state, so that one high-pressure discharge lamp having an emission line emits at a spectral position and at the same time a different high-pressure discharge lamp having an absorption line emits light at the same spectral position, wherein at least some of the light emitted by each high-pressure discharge lamp is converged in a local area.

Abstract: In various embodiments, a method for powering light sources from a input power supply through a converter circuit is provided including a primary side and a secondary side separated by a galvanic barrier, wherein the primary side includes a power factor control block with an output capacitor. The method may include providing save circuitry on said secondary side for saving operational data of the converter upon failure of said input power supply; and powering said save circuitry during saving said operational data with energy derived from said output capacitor of said power factor control block.

Abstract: In various embodiments, a light emitting diode module is provided. The light emitting diode module may include at least one light emitting diode; wherein the at least one light emitting diode is connected in parallel with at least one first capacitor; wherein the at least one light emitting diode is arranged in a first structural unit, and the at least one first capacitor is arranged in a second structural unit, wherein the first structural unit and the second structural unit are electrically coupled to one another via a first cable.

Abstract: A lens (12; 32; 42; 52) comprising a transparent main body (13; 43; 53), wherein a surface (14, 15; 14, 45; 54, 55) of the main body (13; 43; 53) is at least partly covered with an internally reflecting reflection layer (17), the lens (12; 32; 42; 52) has at least one first focal point (F1) and at least one second focal point (F2), at least the first focal point (F1) lies at least partly on a non-covered surface region of the main body (15; 45; 55), and at least one phosphor element (18) bears against the main body (13; 43; 53) at a contact region (19) having at least one first focal point (F1).

Abstract: A light fixture may include a plurality of elongate members, each extending between opposed ends and carrying one or more light radiation sources, such as LEDs, and at least one hinge member which mechanically couples one end of one of the elongate members to one end of another of the elongate members. Thus the hinge member allows the orientation of the elongate members between: an open position, wherein the elongate members extend in sequence with each other in a common direction, and a closed position, wherein the elongate members extend side by side.

Abstract: In various embodiments, a reflector lamp having a longitudinal axis is provided. The reflector lamp may include: a reflector which has a contour and a neck, with a pin base resting at the end of said neck, a light source arranged in the reflector, wherein the light source is fastened in the reflector with the aid of a mounting clip, which simultaneously adjusts the light source, wherein the mounting clip comprises three sections, namely a first section which holds the light source, a second section which serves for the adjustment in the neck and a third section which is used for the base connection.

Abstract: A high-pressure discharge lamp having a starting aid and having a discharge vessel is disclosed, wherein the discharge vessel has two ends with seals, in which electrodes and possibly power supply lines are fastened, wherein the starting aid includes a wire system consisting of a core wire and a wrapping wire applied thereto, wherein the wrapping wire is a flat-pressed or flattened wire.

Abstract: A phosphorescent metal complex compound, a method for the preparation thereof and a radiation component, in particular an organic light emitting electrochemical cell (OLEEC) use a bidentate ligand containing a triazole unit. Some of the blue emitters shown here for the first time, in particular the class of iridium complex compounds presented here, are the bluest emitters that have ever existed.

Abstract: Various embodiments may relate to a connecting module for mechanically connecting two light strips each having at least one semiconductor light source and having at least two electrical contacts arranged in a housing, which electrical contacts each have two contact sections for making electrical contact with the light strips. The electrical contacts in each case pass through the housing with a further contact section for connection to a power supply.