公开(公告)号：US12151500B2

公开(公告)日：2024-11-26

申请号：US17414701

申请日：2019-12-19

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Martin Imhof ,  Astrid Heine ,  Raphael Dehmel ,  Andrea Hofstetter

IPC: B42D25/324 ,  B42D25/29 ,  B42D25/328 ,  B42D25/425 ,  G02B5/08 ,  G02B5/09

Abstract: An optically variable security element for securing valuable articles, has a relief grid having a plurality of relief elements arranged in a grid pattern and at least one line grid arranged vertically above or below the relief grid and having a plurality of line elements that run substantially in the same direction and that are location-dependently modulated. The relief grid and the at least one line grid coact to produce for a viewer, through the location-dependent modulation of the line elements, a surface that, with respect to the area of the security element, jumps out and/or back in the form of a specified three-dimensional image motif.

公开(公告)号：US11345179B2

公开(公告)日：2022-05-31

申请号：US16628397

申请日：2018-07-06

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Martin Imhof ,  Raphael Dehmel ,  Christian Fuhse

IPC: B42D25/324 ,  B42D25/342 ,  G02B5/09 ,  B42D25/21 ,  B42D25/23 ,  B42D25/24 ,  B42D25/29 ,  B42D25/373 ,  B42D25/425

Abstract: An optically variable security arrangement for securing valuable articles, comprises a first sub-element having a two-dimensional relief grid composed of a plurality of grid elements and that has, in at least one spatial direction R1, a first line screen p below 500 μm, and in which the grid elements are each formed from at least two relief elements that are directionally reflective in different directions, and a second sub-element having at least one dot and/or line grid that, in a spatial direction R2, has a second line screen q. A movement effect is created by the interplay of the relief grid and the dot and/or line grid when the security arrangement is tilted.