Patent · US Active

Method for providing a referencing element to an optical lens member

US10456885B2 · kind B2 · utility

0Cited by

6References

9Claims

0Family size

Assignee

Essilor International · FR

Inventors

Frederic Dubois · Charenton-le-Pont, FR
Sebastien Maurice · Charenton-le-Pont, FR

Key dates

Filing date	Feb 28, 2014
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Jun 7, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/021
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Method for providing a referencing element to an optical lens member. An optical lens member is provided which has a first optical surface, with a surface design associated with a first reference system, and a second optical surface to be manufactured. The first and second optical surfaces are connected by an external periphery surface. The first optical surface of the optical lens member is measured, and the first reference system is determined. The reference system is determined according to the shape and orientation of the first optical surface. A referencing element is added to the optical lens member, with the referencing element identifying the first reference system.

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