The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
Jan. 06, 2012
Stephane Laurent, Clichy, FR;
Robert Drese, Aachen, DE;
Ruth Verena Skantze, Husby-Rekarne, SE;
Stephane Laurent, Clichy, FR;
Robert Drese, Aachen, DE;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
Abstract
The invention relates to a substrate (), especially a transparent glass substrate, equipped with a thin-film multilayer comprising, in alternation, 'n' metallic functional films (), in particular functional films based on silver or a metal alloy containing silver, and '(n+1)' antireflection coatings (), where n is an integer≧3, each antireflection coating comprising at least one antireflection film, so that each functional film () is located between two antireflection coatings (), characterized in that said multilayer comprises at least two high-refractive-index antireflection films (), each having a refractive index≧2.15 such that the antireflection coating () located under the first, starting from the substrate, functional film () and the antireflection coating located on the last, starting from the substrate, functional film each comprise at least one high-refractive-index antireflection film () and each antireflection coating () located between two functional films does not comprise a high-refractive-index film.