OPTICAL ITEM COATED WITH AN ANTI-REFLECTIVE OR REFLECTIVE COATING COMPRISING AN ELECTRICALLY CONDUCTIVE FILM MADE OF TIN OXIDE, AND MANUFACTURING METHOD

OPTICAL ITEM COATED WITH AN ANTI-REFLECTIVE OR REFLECTIVE COATING COMPRISING AN ELECTRICALLY CONDUCTIVE FILM MADE OF TIN OXIDE, AND MANUFACTURING METHOD

This invention relates to an optical article having antistatic and antireflection or reflective properties, comprising a substrate having at least one main surface coated with an antireflection or reflective coating, said coating comprising at least one electrically conductive layer comprising at le...

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Bibliographische Detailangaben
Hauptverfasser: CONTE, Dominique, PASSARD, Delphine, SCHERER, Karin, SIRJEAN, Jean-Louis
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONTACT LENSES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Beschreibung
Zusammenfassung:This invention relates to an optical article having antistatic and antireflection or reflective properties, comprising a substrate having at least one main surface coated with an antireflection or reflective coating, said coating comprising at least one electrically conductive layer comprising at least 30% tin oxide (SnO2) by weight relative to the total weight of the electrically conductive layer, said electrically conductive layer having been deposited by ion-assisted deposition, and said substrate having a water uptake rate equal to or greater than 0.6% by weight relative to the total weight of said substrate, the water uptake rate being measured after predrying said substrate and then storing it for 800 hours in a chamber at 50° C. under 100% relative humidity and at atmospheric pressure.