Optical Article Coated with a Sub-Layer and with a Heat Resistant, Multilayered Antireflection Coating, and Method for Producing Same

The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. The article of the invention comprises a substrate and, starting from the substrate: a sub-laye...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SIRJEAN JEAN-LOUIS, THOMAS MICHELE, BEINAT OLIVIER
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 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 DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. The article of the invention comprises a substrate and, starting from the substrate: a sub-layer comprising a SiO2-based layer, said SiO2-based layer having a thickness greater than or equal to 75 nm et free from Al2O3; and a multilayered antireflection coating comprising a stack consisting in at least one high refractive index layer and at least one low refractive index layer, all the low refractive index layers of which comprising a mixture of SiO2 and Al2O3, and the high refractive index layers of which are not layers that do absorb in the visible region comprising a substoichiometric titanium oxide and reducing the relative visible light transmission factor (Tv) of the optical article by at least 10% as compared to a same article without any of said visible light absorbing layers.