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:
Oct. 25, 2016
Filed:
May. 03, 2013
Muriel Godeau, Charenton le Pont, FR;
Aude Lapprand, Charenton le Pont, FR;
Cedric Lemaire, Charenton-le-Pont, FR;
Christian Massart, Charenton-le-Pont, FR;
Gilles Massey, Charenton-le-Pont, FR;
Sebastien Pinault, Charenton-le-Pont, FR;
Catherine Roussel, Charenton-le-Pont, FR;
Montserrat Burgos, Charenton-le-Pont, FR;
Muriel Godeau, Charenton le Pont, FR;
Aude Lapprand, Charenton le Pont, FR;
Cedric Lemaire, Charenton-le-Pont, FR;
Christian Massart, Charenton-le-Pont, FR;
Gilles Massey, Charenton-le-Pont, FR;
Sebastien Pinault, Charenton-le-Pont, FR;
Catherine Roussel, Charenton-le-Pont, FR;
Montserrat Burgos, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton le Pont, FR;
Abstract
A method for cutting-out a multi-layer ophthalmic lens () following a desired contour (C), includes: a step of pre-blanking the ophthalmic lens () using a preliminary tool (), according to a preliminary contour (CC); a step of blanking the ophthalmic lens () using a blanking wheel (), following a blanking contour (CC); and a step of finishing the ophthalmic lens () using a finishing tool (). According to the invention, the preliminary contour (CC) is larger than the desired contour (C), and the blanking wheel () used has a granulometry of between 0.1 and 0.5 mm and is controlled in relation to the ophthalmic lens () so as to apply a radial force of between 0.1 and 5 N to the ophthalmic lens () during the blanking step.