| 摘要 |
The present invention pertains to a security element for authenticity verification, in particular, of security documents, banknotes, valuable documents, coins, chips, commodities, design elements, data carriers and similar objects. The inventive security element comprises a first layer (101) that is transparent to light and has a refractive index n1, wherein the first side (108) of the first layer (101) has a surface (108) that is provided with a structure (105), a second layer (102) that is arranged on the first layer (101) directly on the structured surface (108) and has a refractive index n2, wherein n2≠n1 applies, particularly n2>>n1 or n2<<n1, wherein the transmission T of the light through the second layer (102) varies in accordance with a predetermined function T=T(x, y) in dependence on the location in the second layer (102), and wherein x and y are location coordinates in a layer plane of the second layer, as well as a third layer (103) that is transparent to light and contains a luminescent material, wherein this third layer is arranged on the opposite side of the second layer (102) referred to the first layer (101) and connected to the second layer (102) in a light-conductive fashion or arranged on the second side (107) of the first layer (101) that lies opposite of the first side of the first layer (101) and connected to the first layer (101) in a light-conductive fashion.
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