EP 3233512 B1 20190306 - OPTICALLY VARIABLE TRANSPARENT SECURITY ELEMENT
Title (en)
OPTICALLY VARIABLE TRANSPARENT SECURITY ELEMENT
Title (de)
OPTISCH VARIABLES DURCHSICHTSSICHERHEITSELEMENT
Title (fr)
ÉLÉMENT DE SÉCURITÉ TRANSPARENT VARIABLE OPTIQUEMENT
Publication
Application
Priority
- DE 102014019088 A 20141218
- EP 2015002414 W 20151201
Abstract (en)
[origin: CA2963024A1] The invention relates to an optically variable transparent security element (12) for safeguarding valuables, said security element comprising a planar, optically variable surface pattern that when looked through displays a coloured appearance having a multi-coloured colour change that is dependent on the viewing angle. According to the invention, the optically variable surface pattern contains a plurality of facets (32) which create a substantially optical effect under radiation, the orientation of each facet being characterised by an angle of inclination a with respect to the plane of the surface pattern, which angle of inclination is between 0° and 45°, and by an azimuth angle T in the plane (30) of the surface pattern. The facets (32) are provided with an interference layer (36) which has a colour change in transmitted light depending on the viewing angle, and the optically variable surface pattern contains at least two partial regions (16, 18) each having a plurality of facets (32) that are oriented in the same direction, wherein the facets (32) of the at least two partial regions (16, 18) differ from one another in the angle of inclination with respect to the plane and/or in the azimuth angle in the plane.
IPC 8 full level
B42D 25/324 (2014.01); B42D 25/351 (2014.01)
CPC (source: CN EP US)
B42D 25/00 (2014.10 - US); B42D 25/29 (2014.10 - US); B42D 25/324 (2014.10 - CN EP US); B42D 25/351 (2014.10 - CN EP US); B42D 25/36 (2014.10 - EP); B42D 25/364 (2014.10 - US); B42D 25/373 (2014.10 - EP US); B42D 25/425 (2014.10 - 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 102014019088 A1 20160623; AU 2015366007 A1 20170601; AU 2015366007 B2 20180308; CA 2963024 A1 20160623; CA 2963024 C 20190625; CN 107087404 A 20170822; CN 107087404 B 20181225; EP 3233512 A1 20171025; EP 3233512 B1 20190306; US 10124621 B2 20181113; US 2018037049 A1 20180208; WO 2016096094 A1 20160623
DOCDB simple family (application)
DE 102014019088 A 20141218; AU 2015366007 A 20151201; CA 2963024 A 20151201; CN 201580059746 A 20151201; EP 15804317 A 20151201; EP 2015002414 W 20151201; US 201515537622 A 20151201