SAPPHIRE THIN FILM COATED SUBSTRATE

An anti-reflective coating comprising a topmost anti-reflective material layer comprising of sapphire or Al 2O 3, the one or more middle anti-reflective material layers, and a bottommost anti-reflective material layer deposited on top of the substrate, wherein the topmost anti-reflective material la...

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Bibliographische Detailangaben
Hauptverfasser:	CHEAH, Kok Wai, CHAN, Yu Wai, LAM, Wing Yui
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS 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 COMPOSITIONS BASED THEREON DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL PROCESSES OF COMPOUNDING GLASS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	An anti-reflective coating comprising a topmost anti-reflective material layer comprising of sapphire or Al 2O 3, the one or more middle anti-reflective material layers, and a bottommost anti-reflective material layer deposited on top of the substrate, wherein the topmost anti-reflective material layer, the one or more middle anti-reflective material layers, and the bottommost anti-reflective material layer have alternatively higher and lower refractive indices in respect with each other. The anti-reflective coating on a substrate can form high anti-scratching.