公开(公告)号：US20220066079A1

公开(公告)日：2022-03-03

申请号：US17414799

申请日：2019-12-18

Applicant: ESSILOR INTERNATIONAL

Inventor： William TROTTIER-LAPOINTE ,  Alexis THEODEN ,  Philippe ROMAND ,  Surin MAIDAM

IPC: G02B5/28 ,  G02C7/02

Abstract: Disclosed is an optical article including a substrate having at least one main face coated with a reflective coating including 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, in which the thicknesses of the layers in the reflective coating have been optimized according to specific design rules in order to boost the abrasion resistance of the optical article.