OPTICAL ARTICLE COMPRISING AN INTERFERENCE COATING WITH HIGH REFLECTIVITY IN THE ULTRAVIOLET REGION

OPTICAL ARTICLE COMPRISING AN INTERFERENCE COATING WITH HIGH REFLECTIVITY IN THE ULTRAVIOLET REGION

The present invention relates to a transparent ophthalmic lens comprising a substrate having a main front face and a main rear face, said main front face being coated with a multilayer interference coating, preferably an anti-reflection coating, comprising a stack of at least one layer having a refr...

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Hauptverfasser: MAITRE, Nicolas, PASSARD, Delphine
Format: Patent
Sprache:eng ; fre ; ger
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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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creator MAITRE, Nicolas
PASSARD, Delphine
description The present invention relates to a transparent ophthalmic lens comprising a substrate having a main front face and a main rear face, said main front face being coated with a multilayer interference coating, preferably an anti-reflection coating, comprising a stack of at least one layer having a refractive index greater than 1.6 and at least one layer having a refractive index less than 1.55, characterised in that: o the mean reflection factor on said main front face coated with said interference coating, between 350 nm and a wavelength between 380 and 400 nm, preferably between 350 and 380 nm, weighted by the function W(l), is greater than or equal to 35% for at least one angle of incidence between 0° and 17°; o the light reflection factor at 400 nm on said main front face coated with said interference coating is less than or equal to 35% for at least one angle of incidence between 0° and 17°.
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subjects CONTACT LENSES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
title OPTICAL ARTICLE COMPRISING AN INTERFERENCE COATING WITH HIGH REFLECTIVITY IN THE ULTRAVIOLET REGION
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