Windscreen system for use in automobile, has display device comprising light source, and structured layer reflecting light radiation sent by light source, so that image formation is visible to observer looking on disk

摘要

The system has an optical sensor (200) for detecting humidity on a surface of a disk (100). A structured layer (130) of the disk is formed to reflect radiation, which is reflected at a surface of the disk, so that the radiation is coupled into the layer and is guided to a receiver (220). A display device (300) comprises a light source (310) for sending light radiation for image formation. The layer reflects the light radiation sent by the source, so that the image formation is visible to an observer (400) looking on the disk. The disk has a holographic multigrid structure. The layer comprises a glass material or a polymer material i.e. polyvinyl butyral.