公开(公告)号：US20190100455A1

公开(公告)日：2019-04-04

申请号：US15750428

申请日：2016-08-05

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien CHIAROTTO ,  Karin SCHERER

IPC: C03C17/34 ,  G02B1/111 ,  G02B5/28

Abstract: The invention relates to an item comprising a substrate having at least one main surface coated with a multilayer interferential coating comprising at least one layer with a refractive index higher than 1.65 and at least one layer with a refractive index lower than, or equal to, 1.65, at least one of the layers of the interferential coating being an organic-inorganic layer that has been deposited in a vacuum environment and has a thickness of at least 30 nm, said interferential coating having a thickness of at least 450 nm and/or at least 8 layers.

公开(公告)号：US20210397025A1

公开(公告)日：2021-12-23

申请号：US17285591

申请日：2019-10-17

Applicant: Essilor International

Inventor： Benoit EMPRIN ,  Nicolas MAITRE ,  Sébastien CHIAROTTO

IPC: G02C7/10 ,  G02C7/02

Abstract: The invention relates to an optical article comprising a substrate having at least one main face successively coated with a layer comprising chromium, silicon and oxygen, a monolayer sub-layer having a thickness higher than or equal to 100 nm, a multilayer interferential coating comprising a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index layer having a refractive index of 1.55 or less, wherein the ratio (I) is higher than or equal to 1.5, and the optical article has a Bayer value determined in accordance with the ASTM F735-81 standard higher than or equal to 7. R D = thickness ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ outermost ⁢ ⁢ low ⁢ ⁢ refractive ⁢ ⁢ index layer ⁡ ( s ) ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ interferential ⁢ ⁢ coating thickness ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ outermost ⁢ ⁢ high ⁢ ⁢ refractive ⁢ ⁢ index layer ⁡ ( s ) ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ interferential ⁢ ⁢ coating ( I )

公开(公告)号：US20210023826A1

公开(公告)日：2021-01-28

申请号：US16923439

申请日：2020-07-08

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien CHIAROTTO ,  Karin SCHERER

IPC: B32B27/08

Abstract: The invention relates to an item comprising a substrate having at least one main surface coated with a multilayer interferential coating comprising at least one layer with a refractive index higher than 1.65 and at least one layer with a refractive index lower than, or equal to, 1.65, at least one of the layers of the interferential coating being an organic-inorganic layer that has been deposited in a vacuum environment and has a thickness of at least 30 nm, said interferential coating having a thickness of at least 450 nm and/or at least 8 layers.

公开(公告)号：US20180231689A1

公开(公告)日：2018-08-16

申请号：US15750040

申请日：2016-08-05

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien CHIAROTTO

IPC: G02B1/111 ,  C23C14/30 ,  C23C14/12 ,  C23C14/08 ,  C23C14/10 ,  C23C16/40

CPC classification number: G02B1/111 ,  C03C17/34 ,  C03C2217/734 ,  C23C14/083 ,  C23C14/10 ,  C23C14/12 ,  C23C14/30 ,  C23C16/401 ,  C23C16/405 ,  C23C16/50

Abstract: An item including a substrate having at least one main surface coated with an interference coating including: a layer A with refractive index less than or equal to 1.65 and obtained via vacuum deposition assisted by an ion source made of at least one organosilicon compound A and making direct contact with layer A, layer B having a refractive index greater than 1.65 and is obtained via vacuum deposition assisted by an ion source made of at least one metal oxide and at least one organosilicon compound B, layer B containing at least one metal oxide having a refractive index greater than or equal to 1.8, or a layer C that includes a silicon oxide, has a thickness less than or equal to 15 nm, and makes direct contact with a layer E that includes at least one metal oxide having a refractive index greater than or equal to 1.8.