Abstract: In various embodiments, a projection device is provided. The projection device may include a light generator for generating primary light by means of at least one light source; at least one carrier having a plurality of transmitted-light regions, the front sides of which can be irradiated by the primary light and the rear sides of which emit light, which transmitted-light regions have at least one first transmitted-light region which contains luminophore and the front side of which can be illuminated by the primary light and the rear side of which emits wavelength-converted secondary light; and at least one deflection mirror for deflecting the primary light of the light generator onto a respective transmitted-light region; wherein the transmitted-light regions have at least one further, wavelength-invariant transmitted-light region.

Abstract: A semiconductor incandescent lamp retrofit lamp may include: at least one semiconductor light source, at least one light scattering body, and at least one optical waveguide, into which light of the at least one semiconductor light source can be coupled, wherein the at least one light scattering body is configured and arranged for the purpose of diffusely emitting light supplied thereto from the at least one semiconductor light source by way of the at least one optical waveguide.

Abstract: A bulb for a semiconductor luminous device is provided. The bulb is three-dimensionally extended and includes at least one optically effective surface structure. A semiconductor luminous device may include at least one semiconductor light source and an optically transmissive bulb for transmitting light emitted by the at least one semiconductor light source, the bulb being three-dimensionally extended and comprising at least one optically effective surface structure, wherein the bulb encloses at least one semiconductor light source.

Abstract: Various embodiments propose an illumination apparatus having a laser apparatus and a phosphor wheel, wherein the phosphor wheel has, in addition to at least one phosphor region for phosphor conversion, at least one transmission region for colored light having a second, greater dominance wavelength from a light source. The beam paths from light source and laser apparatus are e.g. arranged collinearly, wherein the phosphor wheel rotates into the common optical axis of the laser apparatus and light source. By adding colored light having a greater dominance wavelength, the dominance wavelength of a colored light channel that is required for projection applications can also be obtained with colored light converted using efficient phosphor having a dominance wavelength that is too small.

Abstract: An arrangement with a multiplicity of optical semiconductor elements is disclosed. The semiconductor elements are respectively clamped against a semiconductor element carrier by way of a spring element. Additionally lying against the spring element is an optical element assigned to a respective semiconductor element, the spring element in this case being configured in such a way that it defines a fixed distance between the semiconductor element and the optical element.

Abstract: A lighting module (1; 7; 11; 31; 41; 61; 71; 81; 91; 97; 109; 115), comprising: a circuit board (2), on which are mounted at least one component (3; 12; 22; 32; 42; L; 92; 99; 108; 116; 119) and at least one attachment element; (5; 98), wherein the at least one attachment element (5; 98) is fastened on the at least one component (3; 12; 22; 32; 42; L; 92; 99; 108; 116; 119) mounted on the circuit board (2) in a locking manner.

Abstract: A printable ink mixture may include: a medium, orthophosphoric acid, at least one metal oxide, and at least one pigment. A method for producing a color print on a glass or ceramic surface may include: producing an ink mixture including a medium, orthophosphoric acid, at least one metal oxide, and at least one pigment, applying the ink mixture to the glass or ceramic surface, removing the medium from the ink mixture, and baking the ink mixture on the glass or ceramic surface to produce the color print.

Abstract: A lighting device may include: at least one two-dimensional semiconductor light source, at least one reflector unit, which can be switched between a plurality of reflector settings, wherein in a first reflector setting, a first reflector surface of the reflector unit can be illuminated by the at least one semiconductor light source, and in a second reflector setting, a second reflector surface of the reflector unit can be illuminated by the at least one semiconductor light source.

Abstract: A buck converter for operating at least one LED. In this case, the buck inductor comprises a first buck inductor and a second buck inductor, wherein a charge pump is coupled between the coupling point of the two buck inductors and a supply connection of a control apparatus which is used for actuating a buck switch.

Abstract: A driver device may include a driver transistor providing a regulated current; and a stabilization circuit to produce a stabilized reference voltage to be applied to said driver transistor. The stabilization circuit may include: first and second bipolar stabilization transistors; a voltage divider including a first resistance and a second resistance, said voltage divider being interposed between the bases of said first and said second transistors, with the first resistor connected between the base of said second transistor and said partition point of said voltage divider and the partition point acting on the base of the first transistor; and a polarization network to determine the base-emitter voltages of said first and said second stabilization transistors, wherein: said first resistance has a value lower than the value of said second resistance, and the base-emitter voltage of said first transistor is higher than the base-emitter voltage of said second transistor.

Abstract: A light module for a projection apparatus, comprising a laser apparatus adapted to emit linearly polarized radiation in the blue wavelength range, a luminous wheel arranged in the beam path of the radiation emitted by the laser apparatus, a first beam splitter arranged in the beam path of the radiation emitted by the laser apparatus between the laser apparatus and the luminous wheel, a focusing apparatus arranged in the beam path of the radiation emitted by the laser apparatus between the first beam splitter and the luminous wheel, and at least one polarization manipulation apparatus, adapted to rotate the polarization of radiation that has passed through it twice in different directions through 90°, wherein the first beam splitter is arranged such that it is also located in the beam path of radiation in the blue wavelength range which has passed twice through the polarization manipulation apparatus in different directions.

Abstract: A downlight includes: an outer cover; a heatsink; and a light engine located between the outer cover and the heatsink, wherein the light engine is at least partially spherical; the heatsink has a hemispherical inner surface that matches with the spherical portion of the light engine; the outer cover and the heatsink are assembled together by an elastic extension member, thereby making the hemispherical inner surface of the heatsink in contact with the spherical portion of the light engine; the downlight includes a pin provided near the elastic extension member, with one end of the pin fixed to the heatsink and the other end extending through the outer cover. Pressing the end of the pin that extends through the outer cover, the elastic extension member is further extended to separate the heatsink and the light engine so that the illumination angle of the light engine can be adjusted.

Abstract: A lighting device includes at least one space for receiving at least one functional element, the space being connected to at least one semipermeable transmission element and otherwise closed off in a sealed manner and the at least one transmission element being transmissive to air in both directions and non-transmissive to water, at least in the direction of the space.

Abstract: A lighting device may include a plurality of semiconductor light sources arranged on a substrate which is brought into contact thermally with a heat sink, wherein the substrate is formed from a multiplicity of substrate modules which are held by a carrier and which each carry at least one semiconductor light source and are brought into contact electrically with one another.

Abstract: A lighting apparatus includes an exciting light source for emitting exciting light; a phosphor element having a phosphor for converting at least partially the exciting light into yellow light; a solid state light source for emitting blue light; and an optical system for guiding the exciting light onto the phosphor element and guiding and mixing the converted yellow light and the blue light. The optical system includes a dichroic mirror for reflecting blue light and transmitting yellow light.

Abstract: A method for setting a color locus of a luminaire (110) comprising at least one phosphor-converted light-emitting diode (103, 105) and at least one monochromatic light-emitting diode (104), wherein the method comprises the steps of: setting a current for the at least one phosphor-converted light-emitting diode (103, 105) setting a pulse width modulation for the at least one phosphor-converted light-emitting diode (104); and setting a current or a pulse width modulation for the at least one monochromatic light-emitting diode (104).

Abstract: A halogen incandescent lamp for vehicle headlamps includes a coiled incandescent filament arranged within a transparent lamp vessel, wherein the incandescent filament is dimensioned in such a way that, during operation on an operating voltage of 13.2 V, the halogen incandescent lamp has an electrical power consumption in the region of greater than 22 watts and less than or equal to 27 watts and generates a luminous flux in the range of from 400 to 600 lumens.

Abstract: An optical component having a carrier plate or substrate, which includes a first main surface and a second main surface facing away from the first main surface, having a given lens structure in the form of a microlens array on the first main surface, wherein the first lens structure covers the first main surface, and having a lens structure in the form of a microlens array on the second main surface, wherein the lens structure of the second main surface is similar to that of the first in the meaning of a projection, wherein the projection is distorted by a factor a in relation to an origin, which is located at an arbitrary point of the main surfaces, wherein the distortion factor a is at least a=1,001, wherein the distortion is active in at least one direction is disclosed.

Abstract: A lighting device includes a heat sink, through which air can flow transversely to its longitudinal extension and a plurality of semiconductor light sources, in particular light-emitting diodes, arranged on the heat sink, wherein at least two of the semiconductor light sources are aligned in different directions.

Abstract: A semiconductor lighting device includes a translucent cover and a mounting for the cover, wherein the mounting has an annular groove, the cover is inserted into the annular groove and the cover is held in the annular groove, at least on a first side, by means of an adhesive.