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:
Nov. 17, 2020
Filed:
Apr. 21, 2017
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventor:
Pierre Fromentin, Bangkok, TH;
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/04 (2006.01); C07D 249/20 (2006.01); C08G 18/52 (2006.01); C08G 18/72 (2006.01); C08L 69/00 (2006.01); C08G 75/08 (2006.01); C08L 33/10 (2006.01); C08L 75/04 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); C07D 249/20 (2013.01); C08G 18/52 (2013.01); C08G 18/72 (2013.01); C08L 69/00 (2013.01); C08G 75/08 (2013.01); C08L 33/10 (2013.01); C08L 75/04 (2013.01);
Abstract
The present invention relates to an eyeglass lens comprising a substrate made of an optical material comprising a polymer matrix and at least one 2-(2-hydroxy-5-R-phenyl)benzotriazole, in which Ris a resonant group, the optical transmittance through a 2 mm thick layer of said optical material being lower than 1% for each light wavelength ranging from 280 to 405 nm. This eyeglass lens protects from phototoxic blue light and UV light.