Title:
OPTICALLY VARIABLE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/084182
Kind Code:
A3
Abstract:
The invention relates to an optically variable element having a planar motif region (3) having a first motif (4), which contains a plurality of substructures (8) extending over the entire first motif (4) and each having bright and dark partial regions arranged alternately, wherein each substructure (8), upon variation of a first viewing angle (αx) - lying in a first plane - relative to a predetermined illumination direction (P1), is visible only at exactly one of the first viewing angles (αx) and all of the first viewing angles (αx) are different, with the result that the first motif (4) with the corresponding substructure (8) is perceptible in a manner dependent on the first viewing angle (αx).
Inventors:
FUHSE CHRISTIAN (DE)
Application Number:
PCT/EP2011/006414
Publication Date:
August 16, 2012
Filing Date:
December 19, 2011
Export Citation:
Assignee:
GIESECKE & DEVRIENT GMBH (DE)
FUHSE CHRISTIAN (DE)
FUHSE CHRISTIAN (DE)
International Classes:
B42D15/00; B42D15/10; G07D7/00; G07D7/12; G02B30/26
Foreign References:
| DE102004006771A1 | 2005-09-01 | |||
| DE102005061749A1 | 2007-07-05 | |||
| DE102006016139A1 | 2007-10-18 |
Other References:
See also references of EP 2655080A2
Attorney, Agent or Firm:
GIESECKE & DEVRIENT GMBH (Prinzregentenstrasse 159, München, DE)
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