Patent · US Active

Ophthalmic lens

US7427134B2 · kind B2 · utility

28Cited by

19References

6Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Bernard Bourdoncle · Paris, FR
Bruno Decreton · Charenton-le-Pont, FR

Key dates

Filing date	Jun 9, 2006
Grant date	Sep 23, 2008
Priority date	—
Expiry date	Apr 26, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/22
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A progressive multifocal ophthalmic lens has a complex surface having a prism reference point, a fitting cross, a progression meridian having a power addition greater than or equal to 1.5 diopters. The lens has, under conditions when being worn:

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