Patent · US Active

Method and a device for working the periphery of an ophthalmic lens for eyeglasses

US7803035B2 · kind B2 · utility

3Cited by

1References

21Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Michel Nauche · Moissac, FR
Gael Mazoyer · Moissac, FR

Key dates

Filing date	Mar 22, 2006
Grant date	Sep 28, 2010
Priority date	—
Expiry date	Jul 31, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24D5/16
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of working the periphery of an ophthalmic lens (L), the periphery of the lens possessing an edge face (C) and the method including edging the edge face of the lens by machining with a first grindwheel (31) mounted to rotate about an axis of rotation (A4). According to the invention, during the edging, in addition to being free to rotate about the axis of rotation, the first grindwheel possesses two degrees of freedom to move in tilting about two distinct pivot directions that are substantially transverse to its axis of rotation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.