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. 02, 2016
Filed:
Dec. 13, 2012
Essilor International (Compagnie Generale D'optique), Charenton le Pont, FR;
Karl Citek, Forest Grove, OR (US);
Gilles Baillet, Charenton-le-Pont, FR;
Francisco De Ayguavives, Charenton-le-Pont, FR;
Gabriel Keita, Dallas, TX (US);
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton le Pont, FR;
Abstract
An index value is calculated for rating an eyeglass with respect to protection against UV hazard. The index value is based on an integrated UV transmission value through the eyeglass and an integrated UV reflection value related to a back face of the eyeglass. Thus, the index value takes into account actual wearing conditions where UV eye exposure is due either to transmission through the eyeglass or reflection on the eyeglass back face. Respective index values obtained for a set of eyeglasses allow easy sorting of the eyeglasses with respect to UV protection efficiency.