Patent ID: 8094376

Claim:
A multi-layer body for viewing from the front and rear side in transillumination and/or incident illumination, wherein the multi-layer body has one or more transparent first layers and a second layer which has a plurality of micro-patterns comprising one or more opaque first partial regions and one or more transparent second partial regions, wherein in the region of the second partial regions, the multi-layer body is transparent throughout, one of the first layers on its surface remote from the second layer has a surface profile which forms an arrangement of a plurality of first micro-lenses, wherein the micro-lenses are of a diameter of less than 50 μm and a respective pixel of the micro-pattern is selected by the micro-lenses per micro-lens, and the thickness of said first layer or said first layer and one or more further first layers arranged between said first layer and the second layer approximately corresponds to the focal length of the first micro-lenses and wherein the micro-patterns form pixels of a grey scale image, wherein the dimensions of the pixels are <300 μm.