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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Passard, Delphine, Maitre, Nicolas
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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°.