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1.发明公开
公开(公告)号：EP3581675A1
公开(公告)日：2019-12-18
申请号：EP18305738.9
申请日：2018-06-15
发明人： TROTTIER-LAPOINTE, William , FAURE, Bruce , BALOUKAS, Bill , VERNHES, Richard , ZABEIDA, Oleg , MARTINU, Ludvik , WOODWARD, Sasha , DESJARDINS-LECAVALIER, Nicolas , GAGNON, Julien
摘要： The present invention concerns an optical article comprising a substrate with a front main face and with a rear main face, at least one of the main faces being coated with a columnar micro- or nano-structured coating, wherein
- the substrate and the optical article are transparent or can be put in a state where they are transparent in at least a part of the visible region ranging from 380 to 780 nm, along at least one incidence angle;
- said columnar micro- or nano-structured coating comprises at least an array of columns comprising each a core and an upper layer covering said core, the core and the upper layer being structurally and/or chemically different and have light absorbing properties or can be put in a state where they have light absorbing properties with an extinction coefficient " k " equal to or higher than 10 -2 in at least a part of the light spectrum ranging from 250 to 2500 nm and are able to cause a change in transmission or in reflection of incident light through the optical article as a function of the angle of incidence of light.
The invention concerns also a method for manufacturing an optical article comprising a columnar micro- or nano-structured coating.-
2.发明公开
公开(公告)号：EP3926370A1
公开(公告)日：2021-12-22
申请号：EP20305678.3
申请日：2020-06-19
摘要： This invention relates to an optical article comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising at least one low refractive index layer (LI) having a refractive index lower than 1.55 at 550 nm, named hereafter first LI layer, one first high refractive index layer (HI) having a refractive index higher than or equal to 1.55 at 550 nm, named hereafter the first HI layer, and one encapsulated metal film (EMF) comprising a metal island layer (MIL) that is encapsulated between a first layer (L1) and a second layer (L2), said first layer (L1) and said second layer (L2) being both composed of at least one dielectric material,
characterized in that said
- the first layer (L1) is a second LI layer having a refractive index lower than 1.55 at 550 nm and has a physical thickness equal to or higher than 10 nm,
- the metal island layer (MIL) has plasmonic effects and has an effective thickness ranging from 0.2 nm to 4 nm, preferably ranging from 0.5 to 4 nm,
- the second layer (L2) has a physical thickness equal to or higher than 10 nm,
wherein said multilayered antireflective coating has a mean light reflection factor in the visible region R v on the front face and/or on the rear face of said optical article that is equal to or lower than 2.5% for at least an angle of incidence lower than 35°, preferably for an angle of incidence of 0°.
The absorption of said AR stack is mainly due to said MIL layer.-
3.发明公开
公开(公告)号：EP3807440A1
公开(公告)日：2021-04-21
申请号：EP19731671.4
申请日：2019-06-13
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