Abstract: A method is provided for producing numerous projection lenses for numerous headlamps for motor vehicles. Each projection lens is configured to convert an expanded light distribution generated by a primary lens in the headlamp into a light distribution corresponding to the initial light distribution obtained with the headlamp. Each projection lens comprises a Fresnel lens. Numerous identical Fresnel lenses are produced forming the initial Fresnel lenses. The size and/or shape of one of these initial Fresnel lenses is altered to obtain a first Fresnel lens that can be incorporated in a first headlamp. The size and/or shape of a second initial Fresnel lens is altered to obtain a second Fresnel lens that can be incorporated in a second headlamp that has a different size and/or shape than the first Fresnel lens.

Abstract: The invention relates to a headlamp for vehicles having a light source unit containing a plurality of light source elements for emitting light, an optical unit for mapping the light source elements to form a plurality of illumination areas from which a predetermined light distribution is composed, a control unit for generating a control signal by which the light source elements can be individually controlled depending on an ambient signal, an ambient sensor unit for generating the ambient signal by which ambient parameters in an area in front of the vehicle can be determined. The control unit is configured to generate a control signal dependent on the ambient signal, so that only those light source elements are controlled which are mapped in such a part of the light distribution in which there is a changed illuminance due to a light emitted by an external light source.

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 method is provided for producing a hologram for a retroreflector. A retroreflector is provided containing numerous facets, each of which reflects light. A photosensitive recording material is applied to the retroreflector. A laser beam is generated, and numerous facets of the retroreflector are successively lit with the laser beam through the recording material, such that the laser beam is reflected by each of the facets and then passes back though the recording material. The laser beam that moves through the recording material toward the facet is a reference beam, and the laser beam reflected back by the facet forms an object beam, such that a segment of the hologram is generated in a part of the photosensitive recording material in front of each of the facets by superimposing the laser beam moving toward the facet with the reflected laser beam.

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 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 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 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 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: An illumination device, in particular an illumination device for a motor vehicle, comprising a light source for generating light which has components in a blue, green, and red wavelength range, and a holographic optic which the light emitted by the light source strikes, wherein the light striking the holographic optics is used at least partially for reconstructing a hologram, wherein the light emerges from the illumination device after interaction with the holographic optic, and wherein the light source is designed so that the spectral distribution of the light emitted by the light source is adapted to the spectral diffraction efficiency of the holographic optics.

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 lighting device for vehicles, and in particular headlamps, having a light source unit, and having a holographic unit for the generation of a given light distribution. The holographic unit has a hologram on the basis of a photo-sensitive material, onto which the holographic information is applied by means of an exposure process. The hologram is formed by a multitude of hologram segments. The hologram segments are each assigned a separate light source of the light source unit. The hologram segments serve to generate the given light distribution. Herein, holographic information is applied to the hologram segments depending on different wavelengths and different angles of the light source assigned to the hologram segments.

Abstract: A lighting apparatus for vehicles with a housing sealed by a transparent covering panel, containing a light source unit and an optical unit for producing a predetermined light function, wherein the optical unit has a hologram element and/or diffractive element in which diffraction information for producing the light function is contained, wherein optics are disposed downstream of the hologram element and/or the diffractive element in the light beam path, so that light of different orders of diffraction emerging from the hologram element and/or the diffractive element produce different light functions.

Abstract: A lighting apparatus for vehicles with a housing sealed by a transparent covering panel, containing a light source unit and an optical unit for producing a predetermined light function, wherein the optical unit has a hologram element and/or diffractive element in which diffraction information for producing the light function is contained, wherein optics are disposed downstream of the hologram element and/or the diffractive element in the light beam path, so that light of different orders of diffraction emerging from the hologram element and/or the diffractive element produce different light functions.

Abstract: A lighting device for vehicles, and in particular headlamps, having a light source unit, and having a holographic unit for the generation of a given light distribution. The holographic unit has a hologram on the basis of a photo-sensitive material, onto which the holographic information is applied by means of an exposure process. The hologram is formed by a multitude of hologram segments. The hologram segments are each assigned a separate light source of the light source unit. The hologram segments serve to generate the given light distribution. Herein, holographic information is applied to the hologram segments depending on different wavelengths and different angles of the light source assigned to the hologram segments.