| 摘要 |
The invention relates to an optically variable security element (12) for security papers, value documents and other data storage media, comprising a single or multi-layered central body (20) having opposing first and second main surfaces (22, 24), an arrangement of similar micro-lenses (26) on the first main surface (22) of the central body (20), the refracting effect of the micro-lenses defining a focal plane (28), a laser-sensitive recording layer (40) disposed on the second main surface (24) of the central body (20), a mask layer (30) which is disposed between the arrangement of micro-lenses (26) and the laser-sensitive recording layer (40) and outside the focal plane (28) of the micro-lenses, and a plurality of micro-markings (44) produced in the laser-sensitive recording layer (40) by the action of laser radiation, wherein each micro-marking (44) is assigned to a micro-lens (26) and is visible when the security element (12) is viewed through the associated micro-lens (26). The mask layer (30) has a macroscopic recess area (34) in register with the plurality of micro-markings (44). |
