| 摘要 |
The invention relates to an optical security element and a method for producing an optical security element in the form of a multilayer body, having in a first region of the security element a projection element (8) for reshaping by means of diffraction the light transmitted through the optical security element in said first region. The projection element (8) has a plurality of first zones (85) in which a first surface of a replicating layer (82) has a first surface structure and an opaque metal layer (85) is arranged on the first surface of the replicating layer (82). The projection element furthermore has a plurality of transparent second zones (86) in which the first surface of the replicating layer has a second surface structure (87) having an aspect ratio different from the aspect ratio of the first surface structure and no opaque metal layer. The first zones (85) each have a smallest dimension of less than 20 μm and the pattern created by the first and second zones forms a diffractive optical system that diffracts the light transmitted through the second zones (86) for presenting a first piece of information. |
