公开(公告)号：US20020001724A1

公开(公告)日：2002-01-03

申请号：US09916346

申请日：2001-07-30

申请人： SAINT-GOBAIN VITRAGE

发明人： Charles-Edward Anderson ,  Philippe Macquart

IPC分类号： B32B017/06

CPC分类号： B32B17/10036 ,  B32B17/10174 ,  B32B17/10201 ,  B32B17/10761 ,  C03C17/3417 ,  C03C2218/365 ,  Y10T428/12792 ,  Y10T428/24942 ,  Y10T428/24975 ,  Y10T428/265 ,  Y10T428/31616

摘要： The invention relates to a glass substrate having on at least one of its faces an antireflection coating formed by a stack of thin dielectric material layers having alternately high and low refractive indices. To prevent the modification of the optical properties of the coating in the case where the substrate is subject to a heat treatment such as tempering, bending or annealing, the layer or layers of the stack which are liable to deteriorate on contact with alkali ions such as sodium ions are separated form the substrate by at least one layer forming part of the antireflection coating and forming a nullshieldnull with respect to the diffusion of alkali.

摘要翻译： 本发明涉及一种在其至少一个表面上具有由具有交替高低折射率的薄介电材料层叠层形成的抗反射涂层的玻璃基板。 为了防止在基板经受诸如回火，弯曲或退火的热处理的情况下涂层的光学性质的改变，在与碱离子接触时易于劣化的层的层或层 钠离子通过形成抗反射涂层的一部分的至少一层从基底分离，并相对于碱的扩散形成“屏蔽”。