Patent · US Active

Process for designing an ophthalmic progressive eyeglass

US8814354B2 · kind B2 · utility

9Cited by

15References

10Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Marie-Anne Berthezene · Charenton-le-Pont, FR
Bernard Bourdoncle · Paris, FR
Laurent Calixte · Charenton-le-Pont, FR
Cyril Guilloux · Charenton-le-Pont, FR
Jérôme Moine · Charenton-le-Pont, FR
Soazic Mousset · Charenton-le-Pont, FR
Damien Paille · Charenton-le-Pont, FR

Key dates

Filing date	Dec 24, 2010
Grant date	Aug 26, 2014
Priority date	—
Expiry date	Feb 9, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/068
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A process for designing an ophthalmic progressive eyeglass comprises providing an initial front surface and an initial back surface. Respective addition values of front and back surfaces of the eyeglass are varied based on said initial front and back surfaces using a surface derivation tool. These surface addition values are selected so that the eyeglass exhibits an eyeglass addition value which matches a wearer's prescription and a value for a design feature which matches a target value. Said target value may be used for customizing the ophthalmic progressive eyeglass. The process does not require point-to-point surface optimization.

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