OPTICAL ARTICLE HAVING DIRECTIONAL MICRO- OR NANOSTRUCTURED THIN FILM COATING, AND ITS PROCESS

The present invention concerns an optical article comprising a substrate with a front main face and with a rear main face, at least one of the main faces being coated with a columnar micro- or nano-structured coating, wherein- the substrate and the optical article are transparent or can be put in a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	GAGNON, Julien, VERNHES, Richard, BALOUKAS, Bill, MARTINU, Ludvik, FAURE, Bruce, WOODWARD, Sasha, DESJARDINS-LECAVALIER, Nicolas, TROTTIER-LAPOINTE, William, ZABEIDA, Oleg
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DIFFUSION TREATMENT OF METALLIC MATERIAL FREQUENCY-CHANGING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention concerns an optical article comprising a substrate with a front main face and with a rear main face, at least one of the main faces being coated with a columnar micro- or nano-structured coating, wherein- the substrate and the optical article are transparent or can be put in a state where they are transparent in at least a part of the visible region ranging from 380 to 780 nm, along at least one incidence angle;- said columnar micro- or nano-structured coating comprises at least an array of columns comprising each a core and an upper layer covering said core, the core and the upper layer being structurally and/or chemically different and have light absorbing properties or can be put in a state where they have light absorbing properties with an extinction coefficient "k" equal to or higher than 10-2in at least a part of the light spectrum ranging from 250 to 2500 nm and are able to cause a change in transmission or in reflection of incident light through the optical article as a function of the angle of incidence of light.The invention concerns also a method for manufacturing an optical article comprising a columnar micro- or nano-structured coating.