EP 3111375 A1 20170104 - METHOD AND DEVICE FOR FORMING OBJECTS HAVING VARIABLE OPTICAL PROPERTIES AND OBJECT THUS OBTAINED
Title (en)
METHOD AND DEVICE FOR FORMING OBJECTS HAVING VARIABLE OPTICAL PROPERTIES AND OBJECT THUS OBTAINED
Title (de)
VERFAHREN UND VORRICHTUNG ZUM FORMEN VON GEGENSTÄNDEN MIT VARIABLEN, OPTISCHEN EIGENSCHAFTEN UND SO HERGESTELLTER GEGENSTAND
Title (fr)
PROCÉDÉ ET DISPOSITIF DE FORMATION D'OBJETS À CARACTÉRISTIQUES OPTIQUES VARIABLES ET OBJET AINSI OBTENU
Publication
Application
Priority
- FR 1451620 A 20140228
- EP 2015054193 W 20150227
Abstract (en)
[origin: WO2015128489A1] The object (10) has: a first surface (14) at least one zone of which bears a first grating (13) configured to polarise light; and a second surface (16), separate from the first surface and not contained in the same plane as the first surface, at least one zone of which bears a second grating (15) configured to polarise light, at least one of said zones bearing a nanostructure having a periodic structure having a period between about one hundred and one thousand nanometres, which structure is produced by a laser beam, said nanostructure forming one of said gratings or decreasing the polarisation of one of said gratings. In embodiments: said nanostructure forms one of said gratings for polarising light; or said nanostructure decreases the polarisation of one of said gratings.
IPC 8 full level
G06K 19/06 (2006.01); G06K 19/10 (2006.01); G06K 19/16 (2006.01)
CPC (source: EP)
G06K 19/06037 (2013.01); G06K 19/10 (2013.01); G06K 19/16 (2013.01)
Citation (search report)
See references of WO 2015128489A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015128489 A1 20150903; EP 3111375 A1 20170104; FR 3018126 A1 20150904; FR 3018126 B1 20160325
DOCDB simple family (application)
EP 2015054193 W 20150227; EP 15707135 A 20150227; FR 1451620 A 20140228