公开(公告)号：US11376883B2

公开(公告)日：2022-07-05

申请号：US17056286

申请日：2019-05-16

Applicant: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

Inventor： Kai Herrmann Scherer ,  Raphael Dehmel ,  Maik Rudolf Johann Scherer ,  Christian Fuhse

IPC: B42D25/324 ,  B42D25/36 ,  B42D25/425 ,  G02B5/09

Abstract: A flat security element has a main plane and microreflector arranged in a microreflector pattern and present at least one motif that, when the security element is tilted, has a motif effect that relates to the main plane. The microreflector pattern causes a first and a second motif effect, wherein the first motif effect occurs during a tilting movement about a primary axis, if the security element is at the same time oriented within a first tilting angle range about a secondary axis, and the second motif effect occurs during the tilting movement about the primary axis, if the security element is at the same time oriented within a second tilting angle range about the secondary axis.

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.