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:
Sep. 27, 2022
Filed:
Aug. 21, 2017
Corporation DE L'ecole Polytechnique DE Montreal, Montreal, CA;
Essilor International, Charenton-le-Pont, FR;
Martin Caron, Montreal, CA;
Karin Scherer, Charenton-le-Pont, FR;
Oleg Zabeida, Montreal, CA;
Ludvik Martinu, Montreal, CA;
Jolanta Klemberg-Sapieha, Montreal, CA;
Thomas Schmitt, Montreal, CA;
CORPORATION DE L'ECOLE POLYTECHNIQUE DE MONTREAL, Montreal, CA;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
The invention concerns an ophthalmic lens having an increased resistance to thermal and hygroscopic stresses, said ophthalmic lens comprising a substrate, at least one main face of which is coated with a siloxane-based anti-abrasion hardcoat, characterized in that said ophthalmic lens further comprises at least one protective layer of an organic-inorganic material directly in contact with said hardcoat, said protective layer of organic-inorganic material having a Young's modulus higher than 20 GPa, preferably of at least 25 GPa.