Patent · US Expired

Method for refracting and dispensing electro-active spectacles

US6733130B2 · kind B2 · utility

97Cited by

86References

36Claims

0Family size

Assignee

e-Vision, LLC · US

Inventors

Ronald D. Blum · Roanoke, US
Dwight P. Dustin · Laguna Niguel, US
Dan Katzman · Givat Ela, IL

Key dates

Filing date	Oct 28, 2002
Grant date	May 11, 2004
Priority date	—
Expiry date	Oct 28, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/13415
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An electro-active spectacle lens is disclosed. The disclosed lens includes a first lens optic. The disclosed lens also includes a first electro-active zone positioned in a cooperative relationship with the first lens optic. In certain embodiments, the electro-active lens includes a range finder positioned in a cooperative relationship with the electro-active lens.

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