MINITURISED HOLOGRAPHIC DISPLAY

• Main Authors: ERLER, Christoph, KÜHL, Siemen, VOJTISEK, Petr
• Format: Patent
• Language: English; French; German
• Published: 29.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CINEMATOGRAPHY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; HOLOGRAPHIC PROCESSES OR APPARATUS; HOLOGRAPHY; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

The invention relates to a holographic lighting apparatus for generating at least two holographic lighting functions. The lighting apparatus has at least two channels for the respective associated lighting functions. Each channel comprises the following: an edge-lit arrangement comprising an incoupling surface for coupling light from a light source into the arrangement, and an outcoupling surface; and a light source. The edge-lit arrangements of the channels are all comprised in a monolithic component having a common outcoupling surface, and each channel is arranged so as to be rotated about a surface normal of the outcoupling surface along an azimuthal arrangement angle. The component has at least one holographic structure for generating the lighting function of the relevant channel when said structure is illuminated by the light source of the channel. The invention also relates to a vehicle comprising a corresponding lighting apparatus and to a use of the lighting apparatus as a display in a vehicle. The use of the lighting apparatus as an LED collimator is likewise included.