Abstract: A lighting arrangement comprises an optical apparatus (4) with a radiation outlet surface (41) and an optoelectronic component (2) for producing radiation, with an element (3) which is formed like a reflector being formed. The shape and arrangement of the element are suitable for deflecting radiation generated in the component through the radiation outlet surface, and the element is designed to specifically absorb this radiation. The lighting arrangement is preferably intended for particularly homogeneous back-lighting of display apparatuses such as liquid crystal displays (LCDs).

Abstract: An illumination device is specified which comprises an optoelectronic component having a housing body and at least one semiconductor chip provided for generating radiation, and a separate optical element, which is provided for fixing at the optoelectronic component and has an optical axis, the optical element having a radiation exit area and the radiation exit area having a concavely curved partial region and a convexly curved partial region, which at least partly surrounds the concavely curved partial region at a distance from the optical axis, the optical axis running through the concavely curved partial region.

Abstract: Described is an optical element for guiding electromagnetic radiation. The optical element includes a base body and at least one film, wherein the film is configured to adhere to the base body to form an intimate connection with the base body without using an adhesion promoting interlayer and is arranged such that the electromagnetic radiation passes through it.

Abstract: Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.

Abstract: Described is an optical element for guiding electromagnetic radiation. The optical element includes a base body and at least one film, wherein the film is configured to adhere to the base body and to form an intimate connection with the base body without using an adhesion and is arranged such that the electromagnetic radiation passes through it.

Abstract: A projection apparatus is specified, comprising a light modulator having a light receiving region with a cross-sectional area to be illuminated of the size AM and a maximum acceptance angle ? for incident light, and at least one light source by means of which, during its operation, a light cone is produced for illuminating said cross-sectional area of said light receiving region and which comprises a number N of LED chips having a maximum radiation angle ?. At least one of the LED chips has a radiation decoupling area of the size AD. The relation 0.7·(AM·sin2(?))/(AD·sin2(?)·n2)?N?1.3·(AM·sin2(?))/(AD·sin2(?)·n2) applies, where n is equal to 1 or to the refractive index of a coupling medium with which the LED chips are provided.

Abstract: A motor-vehicle headlight is specified, having at least one light-emitting diode, and an apparatus for controllable manipulation of the beam path of the electromagnetic radiation emitted from the light-emitting diode. The described motor-vehicle headlight is distinguished inter alia by a particularly variable emission characteristic.

Abstract: A light-emitting diode arrangement is disclosed, comprising at least one light-emitting diode (LED) chip with a radiation decoupling surface through which a large portion of the electromagnetic radiation generated in the LED chip exits in a main direction of emission; a housing laterally surrounding the LED chip; and a reflective optic disposed after the radiation decoupling surface in the main direction of emission. The LED arrangement is particularly well suited for use in devices such as camera-equipped cell phones, digital cameras or video cameras.

Abstract: A lighting device is disclosed comprising a plurality of semiconductor light sources disposed on a carrier, wherein the light from the light sources is coupled into assigned lightguides at a set angle to the surface normals of the carrier and the lightguides are provided with reflecting and light exit faces such that the envelope of the light outcoupling faces forms a curved surface segment.

Abstract: A laterally emitting radiation-generating component comprising a radiation source, the optical axis of which runs perpendicular to a mounting area of the component, and comprising an optical device arranged downstream of the radiation source. The optical device includes a reflective surface shaped like a V in cross section and a refractive surface that is shaped convexly as seen externally and is arranged between the reflective surface and a bottom area facing the radiation source. The bottom area is arranged and formed in such a way that through it electromagnetic radiation from the radiation source couples into the optical device. The reflective surface is arranged and formed in such a way that a central first portion of the coupled-in radiation is deflected toward the refractive surface by the reflective surface.

Abstract: An illumination device is specified which has a light source (1) suitable for coupling divergent electromagnetic radiation (6) into an optical waveguide (2), the electromagnetic radiation (6) being guided in the optical waveguide (2) on the basis of total reflection the optical waveguide (2) being suitable for changing a main radiating direction (17) of the electromagnetic radiation (6), and the optical waveguide (2) being formed in one piece. Light-emitting diodes are preferably used as the light source (1). The illumination device is particularly well suited to the backlighting of displays.

Abstract: An illumination device is specified which comprises an optoelectronic component having a housing body and at least one semiconductor chip provided for generating radiation, and a separate optical element, which is provided for fixing at the optoelectronic component and has an optical axis, the optical element having a radiation exit area and the radiation exit area having a concavely curved partial region and a convexly curved partial region, which at least partly surrounds the concavely curved partial region at a distance from the optical axis, the optical axis running through the concavely curved partial region.

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: An illumination device is specified which comprises an optoelectronic component having a housing body and at least one semiconductor chip provided for generating radiation, and a separate optical element, which is provided for fixing at the optoelectronic component and has an optical axis, the optical element having a radiation exit area and the radiation exit area having a concavely curved partial region and a convexly curved partial region, which at least partly surrounds the concavely curved partial region at a distance from the optical axis, the optical axis running through the concavely carved partial region

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: This invention relates to uniform backlighting of surfaces by semiconductor light sources. Various semiconductor light sources are combined into identical illumination groups. These identical illumination groups are arranged so that uniform backlighting of a surface is made possible. For homogeneous color mixing to be achieved, especially at edges, each illumination group in the arrangement has at least one adjacent illumination group in a different orientation.

Abstract: A lighting arrangement comprises an optical apparatus (4) with a radiation outlet surface (41) and an optoelectronic component (2) for producing radiation, with an element (3) which is formed like a reflector being formed. The shape and arrangement of the element are suitable for deflecting radiation generated in the component through the radiation outlet surface, and the element is designed to specifically absorb this radiation. The lighting arrangement is preferably intended for particularly homogeneous back-lighting of display apparatuses such as liquid crystal displays (LCDs).

Abstract: A light-emitting diode arrangement having at least one light-emitting diode chip (1), each light-emitting diode chip (1) being assigned at least one optical element (4). In addition, the light-emitting diode arrangement has at least one heat-conducting element (13) which is suitable to carry away the heat generated by the light-emitting diode chip, and at least one cooling apparatus which is suitable to carry heat away from the heat-conducting element. The light-emitting diode arrangement is particularly well suited, for example, to use in motor vehicle headlamps.

Abstract: A lighting device with a light source followed by an optical apparatus in an emission direction, and a primary optics element with a light inlet and a light outlet being arranged between the light source and the optical apparatus. The primary optics element is designed such that desired characteristics of the light beam are formed within the primary optics element by deliberate reflections on specially shaped reflective surfaces of the primary optics element.

Abstract: Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.