Abstract: A lighting device for vehicles has a light source and a flat optical waveguide with opposing flat sides and narrow sides connecting them. A front flat side is the light emitting surface for light from the light source entering the flat optical waveguide. The front flat side has dedicated micro-optical elements. The optical waveguide is flexible, and framed on at least the opposing narrow sides by retaining elements such that the optical waveguide has a defined curvature in the assembled state.

Abstract: A lighting device for vehicles includes a light source unit containing numerous light sources, and includes a hologram unit containing numerous hologram segments for generating a predefined light distribution. The hologram segments form reflection hologram segments behind and/or next to the light source unit in the main beam direction (H) of the lighting device, such that light emitted from the light source strikes the reflection hologram segment at an acute angle ?). Holographic diffraction information is stored in the reflection hologram segments for generating a signal light distribution. The light source unit contains just one printed circuit board or one printed circuit board substrate.

Abstract: A lighting device for a motor vehicle, comprising at least one light source, a flat light guide, at least one optical component, and a cover disk. The lighting device is designed to be installed in the motor vehicle in such a manner that the normal on the cover disk encloses an angle not equal to 0° with the longitudinal direction of the vehicle. The light guide is arranged in the lighting device in such a manner that the at least one exit surface of the light guide encloses an angle not equal to 0° with the cover disk at least in portions, such that, when installed in the motor vehicle, the normal on at least portions of the at least one exit surface of the light guide forms a smaller angle with the longitudinal direction of the vehicle than the normal on the cover disk.

Abstract: Lighting device for a vehicle, comprising a lighting module having at least one light source and one luminous surface which is illuminated by the light source, from which light emanates during operation of the lighting device, as well as a liquid crystal display which is arranged at least partially in front of the luminous surface in such a way that, during operation of the lighting device, at least one portion of the light emerging from the luminous surface enters an entrance surface of the liquid crystal display and emerges from an exit surface of the liquid crystal display, wherein the lighting device is configured to control the liquid crystal display, in a targeted manner, in order to allow portions of the light impinging on the entrance surface to pass through the liquid crystal display and not to allow other portions of the light impinging on the entrance surface to pass through the liquid crystal display.

Abstract: A lighting device for a motor vehicle includes numerous light sources and a collimator with numerous collimator lenses. Each collimator lens has an entry surface and an exit surface through which light from the light sources passes successively. Projection optics include a first and second transparent substrates, each with an entry surface and an exit surface. At least one array of cylindrical lenses are on the entry and/or exit surface of the first and second substrates. Light exiting the collimator first passes through the at least one array of cylindrical lenses on the first substrate and then through the at least one array of cylindrical lenses on the second substrate. The projection optics include a first array of cylindrical lenses on the first substrate, the cylinder axes of which extend in a first direction, which is horizontal when the lighting device is installed in a vehicle.

Abstract: A headlamp for vehicles is provided with a light source unit containing numerous light sources, and with a hologram unit containing numerous hologram segments for generating a predefined light distribution. Each of the hologram segments has at least one dedicated light source. The hologram segments are reflection hologram segments behind the respective dedicated light sources in the direction light is emitted by the headlamp, which light from the light sources strikes them at an acute angle and is reflected in the light emission direction in accordance with the holographic diffraction information stored in the respective reflection hologram segments.

Abstract: A lighting device is provided for a motor vehicle. The lighting device contains a printed circuit board populated with light-emitting diodes and a reflector element. The reflector element is on the same side of the printed circuit board as the light-emitting diodes. The reflector element is subdivided into numerous segments. Each light-emitting diode is dedicated to a segment, such that the light from the light-emitting diodes can be reflected away from the printed circuit board by the reflector element in a beam direction (S). An optical element for the lighting device is placed downstream of the reflector element in the beam direction (S). The optical element has different optical properties above the reflective surface of the reflector element.

Abstract: A display device for the interior of a vehicle comprises light sources, light guides, and holograms. The light guides are arranged next to one another and each has an entrance surface and a reflective area. Each light source emanates light that enters the entrance surface of an associated light. At least one of the holograms is arranged at or in each light guide. The light emanated by each light source enters the entrance surface of the associated light guide in a direction of the reflective area of the associated light guide, is reflected by the reflective area of the associated light guide in a direction of the hologram of the associated light guide, and interacts with the hologram of the associated light guide.

Abstract: An illumination apparatus for a motor vehicle comprises: a light source, an optical waveguide with an incident surface and a reflective region; and a hologram arranged on or in the optical waveguide. The illumination apparatus is configured such that light emitted by the light source enters the incident surface of the optical waveguide in the direction of the reflective region, is reflected by the reflective region inside the optical waveguide in the direction of the hologram and interacts with the hologram. The average distance between the light source and the incident surface is at least half as great as the average distance between the reflective region and the hologram.

Abstract: A lighting device for a motor vehicle includes numerous light sources and a collimator with numerous collimator lenses. Each collimator lens has an entry surface and an exit surface through which light from the light sources passes successively. Projection optics include a first and second transparent substrates, each with an entry surface and an exit surface. At least one array of cylindrical lenses are on the entry and/or exit surface of the first and second substrates. Light exiting the collimator first passes through the at least one array of cylindrical lenses on the first substrate and then through the at least one array of cylindrical lenses on the second substrate. The projection optics include a first array of cylindrical lenses on the first substrate, the cylinder axes of which extend in a first direction, which is horizontal when the lighting device is installed in a vehicle.

Abstract: A process is provided for producing a hologram that can be applied in particular to a curved carrier, characterized by the process steps of bending a flat, photosensitive recording material and projecting the hologram into the curved recording material.

Abstract: A lighting device for a motor vehicle with a printed circuit board populated with numerous light-emitting diodes, an optical panel, and a reflector element between the printed circuit board and the optical panel. The reflector element is subdivided into numerous segments. Each light-emitting diode is dedicated to a segment, such that light emitted from the light-emitting diodes is reflected by the segments of the reflector element and passes through the optical panel. Each segment of the reflector element has a reflector foot. The reflector foot surrounds the respective light-emitting diode, and is in contact with the printed circuit board at a contact surface.

Abstract: A lighting device for vehicles includes a light source unit containing numerous light sources, and includes a hologram unit containing numerous hologram segments for generating a predefined light distribution. The hologram segments form reflection hologram segments behind and/or next to the light source unit in the main beam direction (H) of the lighting device, such that light emitted from the light source strikes the reflection hologram segment at an acute angle (?). Holographic diffraction information is stored in the reflection hologram segments for generating a signal light distribution. The light source unit contains just one printed circuit board or one printed circuit board substrate.

Abstract: Lighting device for a vehicle, comprising a lighting module having at least one light source and one luminous surface which is illuminated by the light source, from which light emanates during operation of the lighting device, as well as a liquid crystal display which is arranged at least partially in front of the luminous surface in such a way that, during operation of the lighting device, at least one portion of the light emerging from the luminous surface enters an entrance surface of the liquid crystal display and emerges from an exit surface of the liquid crystal display, wherein the lighting device is configured to control the liquid crystal display, in a targeted manner, in order to allow portions of the light impinging on the entrance surface to pass through the liquid crystal display and not to allow other portions of the light impinging on the entrance surface to pass through the liquid crystal display.

Abstract: A lighting device is provided for a motor vehicle. The lighting device contains a printed circuit board populated with light-emitting diodes and a reflector element. The reflector element is on the same side of the printed circuit board as the light-emitting diodes. The reflector element is subdivided into numerous segments. Each light-emitting diode is dedicated to a segment, such that the light from the light-emitting diodes can be reflected away from the printed circuit board by the reflector element in a beam direction (S). An optical element for the lighting device is placed downstream of the reflector element in the beam direction (S). The optical element has different optical properties above the reflective surface of the reflector element.

Abstract: A lighting device is provided for a motor vehicle. It includes a flat waveguide that has an entry surface and at least one light emission surface. The length (L) of the waveguide is greater than 50 cm. It also includes a plurality of light sources. At least part of the light generated by the light sources enters the waveguide through the entry surface, at least part of the light entering through the entry surface exits the at least one light emission surface, and at least part of the light exiting the at least one light emission surface exits the lighting device. The lighting device also includes a device for positioning and/or retaining the waveguide. The device contains a receiver for a narrow surface of the waveguide extending along the length (L) of the waveguide.

Abstract: A lighting device for a motor vehicle is provided with numerous light sources. A flat waveguide has one entry surface and at least one exit surface. A cover panel is provided, and the light generated by the light sources enters the waveguide, at least in part, through the entry surface, the light entering through the entry surface exits, at least in part, through the at least one exit surface, and the light exiting the waveguide through the at least one exit surface at least partially exits the lighting device through the cover panel. A housing is provided that at least partially encases the numerous light sources, the waveguide, and the cover panel. The thickness of the lighting device in the direction perpendicular to the length and width of the waveguide is less than 20-mm where light exits the cover panel when the lighting device is in operation.

Abstract: A headlamp for vehicles is provided with a light source unit containing numerous light sources, and with a hologram unit containing numerous hologram segments for generating a predefined light distribution. Each of the hologram segments has at least one dedicated light source. The hologram segments are reflection hologram segments behind the respective dedicated light sources in the direction light is emitted by the headlamp, which light from the light sources strikes them at an acute angle and is reflected in the light emission direction in accordance with the holographic diffraction information stored in the respective reflection hologram segments.

Abstract: An illumination device is provided for vehicles, the illumination device including a matrix assembly containing a number of lighting elements arranged in the form of a matrix, each of which can be actuated individually and independently of each other. A line assembly is provided for with a number of light sources and a lens unit for generating a linear signal light function. The matrix assembly is at least partially a component of the line assembly. One part of the matrix assembly forms one part of the linear assembly.

Abstract: An illumination apparatus for a motor vehicle comprises: a light source, an optical waveguide with an incident surface and a reflective region; and a hologram arranged on or in the optical waveguide. The illumination apparatus is configured such that light emitted by the light source enters the incident surface of the optical waveguide in the direction of the reflective region, is reflected by the reflective region inside the optical waveguide in the direction of the hologram and interacts with the hologram. The average distance between the light source and the incident surface is at least half as great as the average distance between the reflective region and the hologram.