Transparent substrate with antireflection coating

Details Transparent substrate with antireflection coating Transparent substrate with antireflection coating

1996-02-23

1999-04-06

Turner, Archene

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

20419215, 20419222, 20419226, 20419229, 427162, 427164, 427165, 427166, 427167, 428212, 428426, 428428, 428432, 428697, 428698, 428701, 428702, 359359, 359580, 359586, 359589, B32B 1706

Patent

active

058915567

ABSTRACT:
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 "shield" with respect to the diffusion of alkali.

REFERENCES:
patent: 5047131 (1991-09-01), Wolfe et al.
patent: 5170291 (1992-12-01), Szczyrbowski et al.
patent: 5183700 (1993-02-01), Austin
patent: 5543229 (1996-08-01), Ohsaki et al.

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