Patent · US Expired

Method for refracting and dispensing electro-active spectacles

US6491394B1 · kind B1 · utility

155Cited by

81References

73Claims

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	Jun 23, 2000
Grant date	Dec 10, 2002
Priority date	—
Expiry date	Jun 23, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/101
WIPO fieldMedical technology
WIPO sectorInstruments

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.