Patent · US Expired

Tool for smoothing optical surfaces, in particular for ophthalmic lenses

US6514133B1 · kind B1 · utility

1Cited by

10References

14Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Joël Bernard · Stamford, US
Jean-Marc Padiou · Charenton-le-Pont, FR

Key dates

Filing date	Jul 3, 2000
Grant date	Feb 4, 2003
Priority date	—
Expiry date	Nov 2, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24D7/18
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A tool for smoothing optical surfaces including a rigid support and a generally annular working member which is at least in part axially deformable. The support forms a recessed annular housing and the working member is attached to the support via the bottom of the annular housing but projects beyond the support. Applications include smoothing ophthalmic lenses, whether made from a mineral material or an organic material.

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