MULTI-LAYER BODY

摘要

The invention relates to a multi-layer body (1) comprising a first layer (13) having a plurality of first zones (21), which are separated from each other by one or more transparent second zones (22). The multi-layer body comprises a second layer (14), which is made of a transparent material and is arranged below the first layer (13), and a reflective layer (15), which is arranged below the second layer (14). The second layer (14) comprises a plurality of third zones (23), in each of which a microstructure (17) is formed in the bounding surface of the second layer (14) to the reflective layer (15), which bounding surface faces away from the first layer. Each of the microstructures (17) is designed in such a way that light incident perpendicularly, relative to the plane spanned by the first layer, in the region of the respective third zone (23) from the direction of the first layer, is reflected or refracted back to a region of the first layer by the microstructure, the area of which region is less than the area of the respective third zone (23) by a factor of at least 10. The microstructures (17) are arranged according to a microstructure grid having a distance between adjacent microstructures in a second spatial direction of less than 300 µm.