Abstract: A lighting device (100), comprising: a ring-shaped first carrier (1) having at least one first light source (11) on the first carrier (1) and a ring-shaped first light emission area (12) disposed downstream of the first light source; (11), and a second carrier (2) having at least one second light source (21), having at least one third light source (31), having a second light emission area (22) disposed downstream of the second light source (21) and having a third light emission area (32) disposed downstream of the third light source (31), wherein, via the second and third light emission areas (22, 32), light is emitted in respectively opposite emission directions (20, 30), and wherein the second carrier (2) is arranged within the ring-shaped first carrier (1) and the first and second carriers (1, 2) are mounted rotatably relative to one another about a rotation axis (3) wherein the rotation axis (3) extends along a diameter of the ring-shaped first carrier (1).

Abstract: An illumination device includes a number of radiation reflectors that are each irradiated by at least one light source. The radiation reflectors are shaped in such a way that they can be combined modularly to form a radiation-reflecting luminous area.

Abstract: A luminous means (1) is specified, comprising a heat sink (2), which comprises a top surface (21) and a bottom surface (22), and also two sections (23), wherein the two sections (23) are arranged one above the other, and each of the sections (23) has a side surface (231) which runs transversely with respect to the top surface (21) and bottom surface (22) of the heat sink (2) and at which at least one light-emitting diode (3) is arranged.

Abstract: A lighting device (100), comprising: a ring-shaped first carrier (1) having at least one first light source (11) on the first carrier (1) and a ring-shaped first light emission area (12) disposed downstream of the first light source; (11), and a second carrier (2) having at least one second light source (21), having at least one third light source (31), having a second light emission area (22) disposed downstream of the second light source (21) and having a third light emission area (32) disposed downstream of the third light source (31), wherein, via the second and third light emission areas (22, 32), light is emitted in respectively opposite emission directions (20, 30), and wherein the second carrier (2) is arranged within the ring-shaped first carrier (1) and the first and second carriers (1, 2) are mounted rotatably relative to one another about a rotation axis (3) wherein the rotation axis (3) extends along a diameter of the ring-shaped first carrier (1)

Abstract: A light-emitting diode array is disclosed which has two light-emitting diodes which are connected in antiparallel with one another, and a power supply which is suitable for energizing the light-emitting diodes independently of one another in the forward direction. In addition, an optical recording apparatus and a method for the pulsed operation of a light-emitting diode are disclosed.

Abstract: An LED semiconductor body includes a number of at least two radiation-generating active layers. Each active layer has a forward voltage, wherein the number of active layers is adapted to an operating voltage in such a way that the voltage dropped across a series resistor connected in series with the active layers is at most of the same magnitude as a voltage dropped across the LED semiconductor body. The invention furthermore describes various uses of the LED semiconductor body.

Abstract: An LED semiconductor body includes a number of at least two radiation-generating active layers. Each active layer has a forward voltage, wherein the number of active layers is adapted to an operating voltage in such a way that the voltage dropped across a series resistor connected in series with the active layers is at most of the same magnitude as a voltage dropped across the LED semiconductor body. The invention furthermore describes various uses of the LED semiconductor body.

Abstract: A luminous means (1) is specified, comprising a heat sink (2), which comprises a top surface (21) and a bottom surface (22), and also two sections (23), wherein the two sections (23) are arranged one above the other, and each of the sections (23) has a side surface (231) which runs transversely with respect to the top surface (21) and bottom surface (22) of the heat sink (2) and at which at least one light-emitting diode (3) is arranged.

Abstract: An LED semiconductor body includes a number of at least two radiation-generating active layers. Each active layer has a forward voltage, wherein the number of active layers is adapted to an operating voltage in such a way that the voltage dropped across a series resistor connected in series with the active layers is at most of the same magnitude as a voltage dropped across the LED semiconductor body. The invention furthermore describes various uses of the LED semiconductor body.

Abstract: A lighting apparatus comprising a plurality of light modules is specified, wherein each light module includes a plurality of groups of light sources mounted on a circuit board of said light module, and said light modules are arranged in rows on a carrier of said lighting apparatus. A display device comprising such a lighting apparatus is also specified.

Abstract: Disclosed is an illumination device comprising a radiation-emitting front side and a multiplicity of light sources (R, G, B), wherein said multiplicity of light sources (R, G, B) is divided into light source groups (LG) and the light source groups (LG) are arranged on the grid points of a first regular grid.

Abstract: A light source element is employed back-lighting of liquid crystal displays and that comprises an obliquely placed light exit face and/or light entry face. At its surfaces, the light waveguide is surrounded by reflectors into which suitable aperture regions are potentially formed. A plurality of light sources and/or a more direct view is provided and, thus, a corresponding increase of the luminance results. A method is also provided for the manufacture of a light source element with an integrated reflector.

Abstract: A light source element is employed back-lighting of liquid crystal displays and that comprises an obliquely placed light exit face and/or light entry face. At its surfaces, the light waveguide is surrounded by reflectors into which suitable aperture regions are potentially formed. A plurality of light sources and/or a more direct view is provided and, thus, a corresponding increase of the luminance results. A method is also provided for the manufacture of a light source element with an integrated reflector.

Abstract: An illumination device includes a number of radiation reflectors that are each irradiated by at least one light source. The radiation reflectors are shaped in such a way that they can be combined modularly to form a radiation-reflecting luminous area.

Abstract: A lighting apparatus comprising a plurality of light modules is specified, wherein each light module includes a plurality of groups of light sources mounted on a circuit board of said light module, and said light modules are arranged in rows on a carrier of said lighting apparatus. A display device comprising such a lighting apparatus is also specified.

Abstract: A passive radiation optical system includes a one-piece module having a plurality of individual optical components wherein the one-piece module is radiation-permeable or reflective. The optical components are connected to one another via predetermined breaking points for forming a radiation optical system module. In addition, the one-piece module can be separated to form optical components that include one or more individual optical components. The one-piece module is particularly for use with light emitting diodes. The passive radiation optical system module is suitable for mass production, and because of its modular principle, it enables flexible adaptation to the shape and size of the desired lighting device, such as lighted advertising or safety lighting.

Abstract: An LED module includes a substrate having good thermal conductivity and one or more radiation-emitting semiconductor components that fixed on the top side of the substrate. The underside of the substrate is fixed on a carrier body having a high thermal capacity, in which the component fixing between the semiconductor components and the substrate and the substrate fixing between the substrate and the carrier body are embodied with good thermal conductivity. Furthermore, the invention relates to a method for producing the LED module, in which metal areas that are suitable as an etching mask improve the impressing of the current required during the anodic bonding, and at the same time, are used as contact areas for contact-connecting the radiation-emitting semiconductor components. The LED module has the advantage that the semiconductor components can be subjected to higher energization as a result of the high thermal capacity of the carrier body.