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:
May. 10, 2022
Filed:
Sep. 19, 2018
Applicant:
Essilor International, Charenton-le-Pont, FR;
Inventors:
Marie Dubail, Charenton-le-Pont, FR;
Montserrat Burgos, Charenton-le-Pont, FR;
Charlène Pousse, Charenton-le-Pont, FR;
Michèle Thomas, Charenton-le-Pont, FR;
Xiaohong Zhang, Dallas, TX (US);
Assignee:
Essilor International, Charenton-le-Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/10 (2006.01); G02C 7/02 (2006.01);
U.S. Cl.
CPC ...
G02C 7/104 (2013.01); G02C 7/02 (2013.01);
Abstract
The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.