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:
Aug. 23, 2022
Filed:
Jun. 25, 2018
Saint-gobain Glass France, Courbevoie, FR;
Nisita Wanakule, Paris, FR;
Julien Beutier, Paris, FR;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
Abstract
A material includes a transparent substrate on which is deposited a stack of layers including n silver-based metal functional layers and n+1 dielectric sets of layers, with n≥3 and each silver-based metal functional layer being placed between two dielectric sets of layers. The dielectric set of layers located below the first silver-based metal functional layer starting from the substrate and the dielectric set of layers located above the last silver-based metal functional layer starting from the substrate each include a high-refractive-index layer, the value of the index≥2.15 at the wavelength of 550 nm; the value of the refractive index of at least one of the high-index layers≥2.40 at the wavelength 550 nm; and the value of the ratio of the optical thickness of each of the high-refractive-index layers to the optical thickness of the dielectric set of layers in which it is included is included between 0.25 and 0.55.