EP 3700756 B1 20210929 - REFLECTIVE SECURITY ELEMENT
Title (en)
REFLECTIVE SECURITY ELEMENT
Title (de)
REFLEKTIVES SICHERHEITSELEMENT
Title (fr)
ÉLÉMENT DE SÉCURITÉ RÉFLÉCHISSANT
Publication
Application
Priority
- DE 102017009936 A 20171025
- EP 2018000481 W 20181022
Abstract (en)
[origin: WO2019081056A1] The invention relates to a reflective security element (40) for authenticity testing by means of polarized light (18), comprising a retroreflective layer (42) and a birefringent layer (44) which is structurally arranged on said retroreflective layer (42).
IPC 8 full level
B42D 25/324 (2014.01); B42D 25/328 (2014.01); B42D 25/364 (2014.01); B42D 25/373 (2014.01); B42D 25/391 (2014.01)
CPC (source: EP US)
B42D 25/324 (2014.10 - EP US); B42D 25/328 (2014.10 - EP US); B42D 25/364 (2014.10 - EP US); B42D 25/373 (2014.10 - EP US); B42D 25/391 (2014.10 - EP US)
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)
DE 102017009936 A1 20190425; CN 111556813 A 20200818; CN 111556813 B 20220322; EP 3700756 A1 20200902; EP 3700756 B1 20210929; US 2021086544 A1 20210325; WO 2019081056 A1 20190502
DOCDB simple family (application)
DE 102017009936 A 20171025; CN 201880083515 A 20181022; EP 18792849 A 20181022; EP 2018000481 W 20181022; US 201816757555 A 20181022