Abstract: A light source (7) with a gas-discharge lamp includes a control module (16) with a driver circuit, an ignition module (17) for producing a substantially high voltage, and a gas-filled burner (18) in which an electric arc is ignited and maintained between two electrodes (19, 20). The control module (16), ignition module (17), and burner (18) are attached to a mutual support system (21) and combined in a single unit. Lighting equipment (1) for a motor vehicle includes at least one light source (7).

Abstract: A method operates a gas-discharge lamp (16) in a transition from a “deactivated” state without an electric arc to a stable “light-generating” state. The method comprises steps of discharging a booster capacitor (C2) in an “acquisition” phase following an ignition-voltage impulse via a current path that conducts a current flowing through the gas-discharge lamp (16) and in which an inductor (L1) having at least one switch (S5) lies in series and cyclically discharging the booster capacitor (C2) by a repeated alternating closing and opening of the switch (S5).

Abstract: A motor vehicle lighting device is proposed, having a light source, and having an optical waveguide, which has a coupling lens, which has at least one reflector, wherein the optical waveguide has first and second planes that are perpendicular to one another, and intersect, and wherein the lines of intersection are each defined by a light beam emitted from the reflector. The device is distinguished in that a transformation by the coupling lens occurs such that an aperture angle of propagation directions of the light beams lying in the second planes is reduced, and the aperture angle of propagation directions lying in the first planes is not altered, or is altered less strongly, and in that the optical waveguide has a transport and transformation lens, wherein the coupling lens and the transport and deflection lens are separate components.

Abstract: A light module (5, 6) for a lighting device (1) of a motor vehicle includes a plurality of semiconductor light sources (11) in serial connection with each other. A circuit arrangement (12a, 12b, 12c) is assigned to and connected in parallel with at least one of the light sources (11), includes a plurality of detectors (13, 15, 16) for detection of a malfunction of the light source (11), and is adapted for bypassing the light source (11) in case of a malfunction of the light source (11). A lighting device (1) of a motor vehicle includes at least one light module (5, 6) for generation of a predefined light distribution.

Abstract: A combination (10) of a power-supply control device (12) and at least one light-control device (14) of a motor vehicle operates at least one semiconductor light source (36, 38). The control device (12) supplies the light-control device (14) with power via a supply line (18) connected to a first connection pin (20) of the control device (12), monitors current flowing through connection pins of the control device (12), and makes use of diagnoses thereof. The light-control device (14) is connected to an additional connection pin (28) of the control device (12) via an error line (26) and checks function of the connected semiconductor light source (36, 38) and, in the case of a malfunction, triggers a current flow in the error line (26). The control device (12) reacts to the triggered current flow with generation of an error message.

Abstract: A projection light module for a motor vehicle headlamp having a lens mount that is divided into a first component and a second component, wherein a separating surface lying between the two components cuts the lens receiver, the mirrored shutter is clamped between the first component and the second component, wherein the position of the mirrored shutter in relation to the two components of the lens mount is determined by form fitting element that engage with one another, and the mirrored shutter has spacers facing toward the projection lens, which are in contact with the projection lens.

Abstract: The present invention is directed toward a light module for a motor vehicle headlamp having a primary lens which conducts light emitted by a light source to an intermediate light distribution, wherein an aperture shutter is disposed in relation to a secondary lens such that light in the intermediate light distribution, which passes by the aperture shutter on a first side of the aperture shutter, ends up in a first beam path in a region lying on a first side of the light/dark border in the second light distribution. The primary lens deflects a portion of the light emitted from the light source, such that it passes by the aperture shutter on a second side of the aperture shutter, and is distributed by the secondary lens in a second beam path in a region lying on a second side of the light/dark border in the second light distribution.

Abstract: The invention concerns a light module with a light source, a primary optical system and a reflector. The primary optical system contains a lens element that is embodied as a sector of an imaginary rotation body formed by the rotation of an imaginary rotation base surface around a rotation axis, wherein the rotation base surface is designed such that the lens element contains a light entry surface that faces the rotation axis and that surrounds the rotation axis and a light emitting surface that is located radially exterior to the rotation axis, wherein the reflector has at least one reflector zone that is embodied as a segment of the surface of a rotation symmetric imaginary associated circular cone, and wherein the axis of symmetry of the circular cone extends parallel to the rotation axis of the lens element.

Abstract: The invention relates to a light-source assembly (10), comprising at least one laser light source (12a, 12b), a photoluminescence element (16), which is designed in such a way that, as the result of incident laser light, a mixed light distribution (18) can be emitted by using photoluminescence and which is arranged in such a way that the laser light of the at least one laser light source (12a, 12b) can be radiated onto the photoluminescence element (16), and at least one light-emitting diode (20) for emitting a supplemental light distribution (24), wherein the at least one laser light source (12a, 12b), the photoluminescence element (16), and the at least one light-emitting diode (20) are fastened to a common carrier component (26) as an assembly. The invention further relates to a motor vehicle headlamp (100) having such a light-source assembly (10).

Abstract: A control device (42) for use in a motor vehicle includes at least one input that has an input port (12), at least one input channel (20, 38), and an input circuitry (43) and receives signals from a sensor (10, 34) via the input port (12) and sends the signals via the input circuitry (43) to the input channel (20, 38). The input port (12) is connected to a defined voltage via a resistor. The input circuitry (43) has a pull-up switch (44) that can be actuated by the control device (42), which controls connection of the input port (12) to a high voltage, and a pull-down switch (46) that can be actuated by the control device (42), which controls connection of the input port (12) to a low voltage. A method adapts the control device (42) to the sensor (10, 34), which is connected to the control device (42).

Abstract: A light module comprises a light-exit section, a base light source that exhibits at least one LED with a light-emitting surface limited by an edge, a reflector open to the light-exit section for collimating light on a meridional plane, and a cylinder lens for collimating the light on a sagittal plane running perpendicular to the meridional plane. The reflector on the sagittal plane is free of curvature and is curved on the meridional plane such that a focal line is defined. The base light source is arranged such that the edge runs on the focal line, and the light-emitting surface proceeds from the focal line extending in a direction of the light-exit section so that the light radiated from the light module exhibits a basic light distribution with a “light/dark” boundary.

Abstract: A projection light module having a light source, primary optics, secondary optics and a movable aperture, which is arranged in such a way that the primary optics transfer lighting current emanating from the light source in a first light distribution which is situated in a focal plane of the secondary optics so that the secondary optics transfer the first light distribution in a second light distribution situated in the front end of the light module, which is equipped to displace an optically effective edge of the aperture by actuating the aperture between a first control position and a second control position, wherein at least the second control position is defined by a mechanical limit stop. The aperture includes at least a resilient stop element.

Abstract: A light module for a motor vehicle headlamp having an optical fiber configuration with at least one first optical fiber branch and one second optical fiber branch. Each of the two branches has a light exit surface each bordered by two narrow sides and disposed such that a narrow side of the first branch is disposed parallel and directly adjacent to a narrow side of the light exit surface of the second branch. Each branch exhibits two transport surfaces. The transport surfaces exhibit surface norms having a directional component, which faces more toward a first narrow side of the two narrow sides of the branch than toward a second narrow side of the two narrow sides of the branch, wherein the narrow sides lying directly adjacent and parallel to one another are a second narrow side of the first branch and a first narrow side of the second branch.

Abstract: A method operates a light source of a motor-vehicle headlight with direct current. The light source is actually designed for operation with alternating current. The light source comprises an inductive load and is arranged between bridge sections of an electrical H-bridge circuit having four semiconductor switches. During “alternating current” operation, the light source is supplied with the alternating current via the H-bridge circuit. Two of the semiconductor switches are arranged at a top and actuated via a respective bootstrap circuit.

Abstract: A lamp module for a motor-vehicle headlamp. The lamp module comprises a light source defining at least one light-emitting surface that emits a luminous flux and defines a horizontally oriented longitudinal edge and at least one other edge running at a right angle thereto. A reflector maps the light-emitting surface without generating an actual intermediate image in front of the lamp module and defines at least two reflecting and strip-shaped facets longitudinal axes of which are more parallel rather than transversal to the longitudinal edge of the light-emitting surface and disposed at a spacing to the light source where the light-emitting surface is mapped with the same mapping scale in front of the lamp module such that the light-emitting surface is mapped with a longitudinal edge running horizontally and another edge running vertically.

Abstract: A light module of a motor vehicle generates a spot distribution of a high-beam-light distribution formed by superimposition of the spot distribution and a base distribution generated by at least one other module. The light module comprises a plurality of separately controllable sub-modules that generate a plurality of stripe-shaped segments of the spot distribution that supplement it. Also, a headlight generates the high-beam-light distribution and comprises the light module. Furthermore, a headlight system comprises a pair of the headlights disposed in a front region toward sides of the vehicle and each of which generates the high-beam-light distribution. The headlights include corresponding light modules that generate stripe-shaped segments of left and right sides, respectively, of the spot distribution such that the stripe-shaped segments of the light modules of the headlights supplement the spot distribution or are at least partially superimposed thereon.

Abstract: A method operates a light source of a motor-vehicle headlight with direct current. The light source is actually designed for operation with alternating current. The light source comprises an inductive load and is arranged between bridge sections of an electrical H-bridge circuit having four semiconductor switches. During “alternating current” operation, the light source is supplied with the alternating current via the H-bridge circuit. Two of the semiconductor switches are arranged at a top and actuated via a respective bootstrap circuit.

Abstract: A light module, comprising numerous semiconductor light sources for emitting light, a primary lens element for concentrating the light emitted from the semiconductor light sources in section perpendicular to a sagittal plane of the light module, wherein the primary lens element exhibits numerous disk-like light conducting sections, extending in a plane perpendicular to the sagittal plane, wherein each light conducting section exhibits a light coupling surface and a light decoupling surface, and is designed for conducting light, subjected to a total reflection, from the light coupling surface to the light decoupling surface, wherein a semiconductor light source is allocated to each light conducting section such that light form the semiconductor light source can be coupled with the respective light coupling surface in the light conducting section.

Abstract: A lamp module for a motor-vehicle headlamp. The lamp module comprises a light source defining at least one light-emitting surface that emits a luminous flux and defines a horizontally oriented longitudinal edge and at least one other edge running at a right angle thereto. A reflector maps the light-emitting surface without generating an actual intermediate image in front of the lamp module and defines at least two reflecting and strip-shaped facets longitudinal axes of which are more parallel rather than transversal to the longitudinal edge of the light-emitting surface and disposed at a spacing to the light source where the light-emitting surface is mapped with the same mapping scale in front of the lamp module such that the light-emitting surface is mapped with a longitudinal edge running horizontally and another edge running vertically.

Abstract: There is presented a vehicle headlamp with an imaging optics that is designed to project, as light/dark boundary, into the area in front of the vehicle headlamp, an edge that delimits a light flux of a light source of the vehicle headlamp, a boundary surface of a component of the imaging optics, through which the light flux penetrates, having an overhead element in the form of a local deformation of the boundary surface having a prismatic effect by means of which the light is deflected into an overhead area lying over the light/dark boundary. The vehicle headlamp is distinguished by the fact that the boundary surface has more than one hundred overhead elements distributed discretely over the boundary surface.