Patent · US Active

Short channel progressive addition lenses

US7837325B2 · kind B2 · utility

24Cited by

4References

17Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

C. Benjamin Wooley · Roanoke, US
Pierre-Yves Gerligand · Troutville, US
Shyamy Sastry · Roanoke, US
Jing Wang · Lo Wu, CN

Key dates

Filing date	Jun 19, 2006
Grant date	Nov 23, 2010
Priority date	—
Expiry date	Aug 17, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/061
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Designing a progressive addition lens includes using scaled surface powers and/or cylinder powers of base curves to determine a set of power targets, and using these targets to determine a lens design.

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