And a method for producing a multilayer body of the security element

2013 
The present invention relates to multi-layer body (2, 3) and a method for producing a security element. The multilayer body having a metal layer (21). Upper (201 plurality of regions formed in at least the surface of the metal layer (21) and / or the second surface of the optically active surface irregularities of the metal layer (21) toward the first surface of the multilayer body is formed or ), the metal layer (21) is formed or the second surface facing the underside of the multilayer body (202). At least one first area of ​​the multilayer body (31-39), the surface irregularities are formed by the first relief structure (61). In the direction (617) at least one determined by the respective azimuth angles, the uneven structure (61) having a series of projections (612) and a recess (614), wherein the projection (612) continuously to each other at intervals of period P, P smaller than the wavelength of visible light, wherein the recess (614) and the lowest point of the concavo-convex structure (61) having irregularities on the bottom surface of the depth t, which is the first relief structure (61) of the projection (612) in the end surface of the highest point in the vertical determining an interval in a direction to the bottom surface. The first relief structure (61) of the profile shape and / or irregular depths t are selected such that at least the first angles of incidence and reflection or directly from metallic layer (21) in the region of the first region (31-39) by changing the light transmittance (52, 53) a color appearance of the metal layer, in particular like to change the plasmon resonance of the incident light through the metal layer.
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