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:
Aug. 22, 2017
Filed:
Feb. 12, 2014
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Aude Contet, Charenton-le-Pont, FR;
Helene De Rossi, Charenton-le-Pont, FR;
Benedicte Deldalle, Charenton-le-Pont, FR;
Cyril Guilloux, Charenton-le-Pont, FR;
Farid Karioty, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton-le-Pont, FR;
Abstract
A pair of progressive ophthalmic lenses () meets special conditions for improving binocular vision of a wearer, while avoiding discomfort for peripheral vision. A first one of the conditions relates to width values of far vision fields and/or proximate vision fields, for indicating that the fields are different enough in width between both lenses. A second one of the conditions sets a maximum value for the relative difference in mean refractive power gradient between both lenses.