EP 3007903 B1 20200520 - SECURITY STRUCTURE HAVING A DIFFRACTIVE OPTICAL ELEMENT
Title (en)
SECURITY STRUCTURE HAVING A DIFFRACTIVE OPTICAL ELEMENT
Title (de)
SICHERHEITSSTRUKTUR MIT EINEM DIFFRAKTIVEN OPTISCHEN ELEMENT
Title (fr)
STRUCTURE DE SECURITE A ELEMENT OPTIQUE DIFFRACTIF
Publication
Application
Priority
- FR 1355344 A 20130610
- IB 2014062097 W 20140610
Abstract (en)
[origin: WO2014199296A1] The present invention relates to a security structure (1) comprising: at least one non-opaque microzone (30), having a section no larger than 1,000,000 µm²; at least one diffractive optical element (40) generating at least one interference pattern (66) in a view plane (62) separated from the diffractive optical element (40), at least partially vertically adjacent to the non-opaque microzone (30).
IPC 8 full level
B42D 25/346 (2014.01); B42D 25/328 (2014.01); B42D 25/355 (2014.01)
CPC (source: EP)
B42D 25/328 (2014.10); B42D 25/346 (2014.10); B42D 25/355 (2014.10); B42D 2033/22 (2022.01); B42D 2035/36 (2022.01); B42D 2035/50 (2022.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
FR 3006795 A1 20141212; FR 3006795 B1 20161209; AU 2014279723 A1 20151224; AU 2014279723 B2 20180426; EP 3007903 A1 20160420; EP 3007903 B1 20200520; JP 2016530118 A 20160929; WO 2014199296 A1 20141218
DOCDB simple family (application)
FR 1355344 A 20130610; AU 2014279723 A 20140610; EP 14733373 A 20140610; IB 2014062097 W 20140610; JP 2016518621 A 20140610