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.

Date of Patent:
Apr. 04, 2017

Filed:

Feb. 09, 2015
Applicant:

Saint-gobain Glass France, Courbevoie, FR;

Inventors:

Matthieu Berard, Paris, FR;

Pierrick Guiset, Massy, FR;

Maud Sarrant-Foresti, Paris, FR;

Charles Leyder, Paris, FR;

Assignee:

SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); B32B 17/10 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0043 (2013.01); B32B 17/10036 (2013.01); B32B 17/10541 (2013.01); B32B 17/10761 (2013.01); B32B 17/10788 (2013.01); G02B 6/005 (2013.01); G02B 6/0076 (2013.01); G02B 6/0095 (2013.01); B32B 2307/416 (2013.01); B32B 2307/418 (2013.01); B32B 2307/422 (2013.01);
Abstract

A luminous glazing unit includes a glass substrate, an additional element that is tinted an optical isolator between the glass substrate and the additional element, a light source, optically coupled to the glass substrate, and a light-extracting device associated with the glass substrate. The optical isolator includes a low-index film, made of fluoropolymer-based material which: has a refractive index n2 at 550 nm such that n1-n2 is at least 0.08, has a thickness e2 of at least 600 nm, is in optical contact with the first main face by a first lamination interlayer, based on a thermoplastic material.


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