EP 1503907 A1 20050209 - OPTICALLY VARIABLE ELEMENT COMPRISING A SEQUENCE OF THIN-FILM LAYERS
Title (en)
OPTICALLY VARIABLE ELEMENT COMPRISING A SEQUENCE OF THIN-FILM LAYERS
Title (de)
OPTISCH VARIABLES ELEMENT MIT DÜNNFILMSCHICHTFOLGE
Title (fr)
ELEMENT OPTIQUEMENT VARIABLE COMPORTANT UNE SERIE DE COUCHES CONSTITUEES D'UN FILM MINCE
Publication
Application
Priority
- EP 03718769 A 20030417
- EP 0304023 W 20030417
- EP 02010745 A 20020514
Abstract (en)
[origin: WO03095228A1] The invention relates to an optically variable element, in particular an optically variable security element for safeguarding banknotes, credit cards or similar, in addition to a security product and a foil, in particular a stamped foil or a laminated foil comprising an optically variable element of this type. The optically variable element has a thin-film layer (54, 55, 58) for creating colour shifts by means of interference and an additional layer (51, 52, 53, 59). The thin-film is configured as a partial thin-film element, which covers only certain regions of the surface area of the additional layer, forming a pattern.
IPC 1-7
IPC 8 full level
B42D 25/21 (2014.01); B41M 3/14 (2006.01); G07D 7/12 (2016.01)
CPC (source: EP KR US)
B41M 3/14 (2013.01 - KR); B42D 25/21 (2014.10 - KR); B42D 25/29 (2014.10 - EP US); B42D 25/328 (2014.10 - EP US); G07D 7/12 (2013.01 - KR); B42D 2035/24 (2022.01 - EP)
Citation (search report)
See references of WO 03095228A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03095228 A1 20031120; AT E352430 T1 20070215; AU 2003222822 A1 20031111; CN 100534806 C 20090902; CN 1652946 A 20050810; DE 50306381 D1 20070315; EP 1503907 A1 20050209; EP 1503907 B1 20070124; ES 2279944 T3 20070901; JP 2006504545 A 20060209; JP 4660187 B2 20110330; KR 100587984 B1 20060608; KR 20050007537 A 20050119; PL 208667 B1 20110531; PL 373142 A1 20050822; RU 2004136320 A 20050527; RU 2309050 C2 20071027; US 2005141094 A1 20050630; US 6982832 B2 20060103
DOCDB simple family (application)
EP 0304023 W 20030417; AT 03718769 T 20030417; AU 2003222822 A 20030417; CN 03810772 A 20030417; DE 50306381 T 20030417; EP 03718769 A 20030417; ES 03718769 T 20030417; JP 2004503282 A 20030417; KR 20047018251 A 20030417; PL 37314203 A 20030417; RU 2004136320 A 20030417; US 51352104 A 20041206