Abstract: A method for producing a computer-generated hologram including producing a reference beam, producing an object beam, applying computer-generated information regarding the hologram to the object beam, overlapping the object beam and the reference beam on or in a light-sensitive recording medium in order to apply the hologram by exposure, wherein several portions of the light-sensitive recording medium are exposed, one after the other, to the object beam and the reference beam simultaneously in order to produce a plurality of sub-holograms, wherein the angle of incidence at which the reference beam hits the surface of a first portion of the recording medium is different from the angle of incidence at which the reference beam hits the surface of a second portion of the recording medium. A change in the angle of incidence of the reference beam is achieved by changing the point of incidence of the reference beam on a lens.

Abstract: A lighting device for a vehicle, in particular a headlamp for a vehicle, having at least one light source, from which light emanates during the operation of the lighting device, a diffractive optical unit, including a plurality of gratings, which form a grating cell array, the light passing through the grating cell array during the operation of the lighting device in such a way that a light distribution is created in the outer area of the vehicle, at least one of the gratings of the grating cell array being designed as a volume hologram.

Abstract: A lighting device is provided for a motor vehicle. The lighting device comprises at least one imaging component with at least one active surface, on which imaging elements for the generation of pixels of a light distribution are arranged matrix-like. The lighting device further comprises a light-guiding optics having at least one entry surface and one exit surface. During operation of the lighting device, the light emanating from the at least one active surface enters the light-guiding optics through the at least one entry surface and exits the light-guiding optics through the exit surface. The exit surface has a different shape and/or a different size than the at least one active surface, and/or a plurality of active surfaces and only one exit surface or a plurality of adjacent exit surfaces are provided.

Abstract: A device for producing an edge-lit-hologram having a light source, in particular a laser light source, for generating a light beam, optical splitter for splitting the light beam generated by the light source into an object beam and a reference beam, imprinter for imprinting computer-generated information pertaining to the edge-lit-hologram to the object, optics for overlapping the object beam and the reference beam on or in a photosensitive recording medium for imprinting the edge-lit-hologram, where the optics include at least one transparent body through which the reference beam enters the photosensitive recording medium during operation of the device. The at least one transparent body shaped and disposed in the device such that the reference beam enters the body at an angle of less than 10° to the normal on the surface of the body or enters the body perpendicular to the surface of the body.

Abstract: A display device for a motor vehicle is provided. The display device includes at least one display with a display surface for displaying content via a plurality of pixels. The display device comprises a light-guiding lens with at least one entry surface and an exit surface. During operation of the display device the light emitted from the display surface enters the light-guiding lens through the at least one entry surface and is emitted by an exit surface, such that the content is shown on the exit surface. In one embodiment, the exit surface features a different shape. In another embodiment, the exit surface is a different size than the at least one display surface. In another embodiment, the display device comprises several displays with display surfaces at distances to each other, and the light-guiding lens features merely one exit surface or several exit surfaces directly adjoining each other.

Abstract: A lighting device for a vehicle, in particular a headlamp for a vehicle, having at least one light source, from which light emanates during the operation of the lighting device, a diffractive optical unit, including a plurality of gratings, which form a grating cell array, the light passing through the grating cell array during the operation of the lighting device in such a way that a light distribution is created in the outer area of the vehicle, at least one of the gratings of the grating cell array being designed as a volume hologram.

Abstract: A device for manufacturing a replica hologram, comprising a holder for a light-sensitive recording material, into which the replica hologram is to be imprinted, a holder for a master hologram, as well as a lighting device for generating light for exposing the master hologram, the color of the light generated by the lighting device being variable, and the lighting device comprising optics for exposing the master hologram with the aid of the light generated by the lighting device, the device being designed in such a way that the light emanating from the master hologram impinges on the recording material to manufacture the replica hologram.

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 method for producing a computer-generated hologram including producing a reference beam, producing an object beam, applying computer-generated information regarding the hologram to the object beam, overlapping the object beam and the reference beam on or in a light-sensitive recording medium in order to apply the hologram by exposure, wherein several portions of the light-sensitive recording medium are exposed, one after the other, to the object beam and the reference beam simultaneously in order to produce a plurality of sub-holograms, wherein the angle of incidence at which the reference beam hits the surface of a first portion of the recording medium is different from the angle of incidence at which the reference beam hits the surface of a second portion of the recording medium. A change in the angle of incidence of the reference beam is achieved by changing the point of incidence of the reference beam on a lens.

Abstract: A headlamp for vehicles comprising at least one light source for generating at least one light beam, a scanning device for one-dimensionally scanning the at least one light beam bidirectionally in a scanning direction, and an array of optical elements arranged side by side in a direction that corresponds to the scanning direction so that the at least one light beam impinges on the optical elements successively. At least some of the optical elements are designed to expand the at least one light beam in a direction perpendicular to the direction, in which the optical elements are arranged side by side.

Abstract: An illumination device for vehicles for illuminating a roadway region in front of the vehicle, the device comprising a housing which is closed by a transparent cover panel and in which a light source unit is arranged for generating a light beam and in which an optical unit is arranged for shaping the light beam according to a specified light distribution to be generated outside the housing, wherein the optical unit has a divergence corrector for the light beam, wherein the divergence corrector on a side facing away from the light source has a structural surface having a plurality of structural elements in the micro and/or nano and/or atomic length range, and the structural surface is arranged directly on or near to a light-emitting surface of the light source.

Abstract: A headlamp for vehicles comprising at least one light source for generating at least one light beam, a scanning device for one-dimensionally scanning the at least one light beam bidirectionally in a scanning direction, and an array of optical elements arranged side by side in a direction that corresponds to the scanning direction so that the at least one light beam impinges on the optical elements successively. At least some of the optical elements are designed to expand the at least one light beam in a direction perpendicular to the direction, in which the optical elements are arranged side by side.

Abstract: A method for producing a computer-generated hologram, including the method steps of generating a reference beam, generating an object beam, imprinting computer-generated information pertaining to the hologram to the object beam, and overlapping of the object beam and the reference beam on or in a photosensitive recording medium for imprinting the hologram, wherein successively a plurality of portions of the photosensitive recording medium are simultaneously impinged upon with the object beam and the reference beam to produce a plurality of sub-holograms, and wherein the angle of incidence at which the reference beam is incident on the surface of a first portion of the recording medium is different from the angle of incidence at which the reference beam impinges upon the surface of a second portion of the recording medium.

Abstract: A device for producing an edge-lit-hologram having a light source, in particular a laser light source, for generating a light beam, optical splitter for splitting the light beam generated by the light source into an object beam and a reference beam, imprinter for imprinting computer-generated information pertaining to the edge-lit-hologram to the object, optics for overlapping the object beam and the reference beam on or in a photosensitive recording medium for imprinting the edge-lit-hologram, wherein the optics comprise at least one body transparent to the reference beam through which the reference beam enters the photosensitive recording medium during operation of the device. The at least one transparent body shaped and disposed in the device such that the reference beam enters the body at an angle of less than 10° to the normal on the surface of the body or enters the body perpendicular to the surface of the body.