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. 10, 2020
Filed:
Apr. 28, 2014
Corporation DE L'ecole Polytechnique DE Montreal, Montreal, CA;
Essilor International (Compagnie General D'optique), Charenton le Pont, FR;
Oleg Zabeida, Cote Saint-luc, CA;
Thomas Schmitt, Montreal, CA;
Jolanta Sapieha, Pointe Claire, CA;
Ludvik Martinu, Montreal, CA;
Karin Scherer, Charenton le Pont, FR;
CORPORATION DE L'ECOLE POLYTECHNIQUE DE MONTREAL, Montreal, CA;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
The invention relates to an article comprising a substrate having at least one major surface coated with a layer A of a material obtained by ion beam assisted vacuum deposition of at least one titanium oxide and of at least one organosilicate compound B, said material having a refractive index at 550 nm higher than or equal to 1.8, an extinction coefficient k at 550 nm lower than or equal to 0.02, and an H:E ratio higher than or equal to 0.046, where H and E designate the hardness of the material and the elastic coefficient of the material, respectively.