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:
Jul. 25, 2023
Filed:
Jul. 08, 2020
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Sébastien Chiarotto, Charenton-le-Pont, FR;
Karin Scherer, Charenton-le-Pont, FR;
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); C09D 183/04 (2006.01); B32B 27/28 (2006.01); C07F 7/08 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 27/283 (2013.01); B32B 2307/40 (2013.01); B32B 2383/00 (2013.01); C07F 7/0838 (2013.01); C09D 183/04 (2013.01); Y10T 428/26 (2015.01); Y10T 428/265 (2015.01); Y10T 428/31663 (2015.04);
Abstract
The invention relates to an item comprising a substrate having at least one main surface coated with a multilayer interferential coating comprising at least one layer with a refractive index higher than 1.65 and at least one layer with a refractive index lower than, or equal to, 1.65, at least one of the layers of the interferential coating being an organic-inorganic layer that has been deposited in a vacuum environment and has a thickness of at least 30 nm, said interferential coating having a thickness of at least 450 nm and/or at least 8 layers.