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:
Feb. 26, 2019
Filed:
Oct. 29, 2013
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Luis Castro, Charenton-le-Pont, FR;
Eric Gacoin, Charenton-le-Pont, FR;
Jerome Moine, Charenton-le-Pont, FR;
Bernard Pons, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
A method for manufacturing an optical lens, includes the steps of providing a blank () which includes an upper surface and a lower surface () for forming first and second lens surfaces (), an edge surface () forming a first mechanical positioning reference point and a ramp portion () provided between the edge surface and the upper surface, which forms a second positioning reference point; providing a positioning ring () including a cavity defining an inner contour () concentric with the edge surface which forms a first complementary control reference point and a shoulder () forming a second complementary control reference point; fitting the blank into the cavity, the edge surface being in contact with the inner contour and the ramp portion being in contact with the shoulder; and locking the blank in position on a locking and supporting pin, the ring then being positioned there between.