Patent · US Expired

Auto-focussing glasses and method for auto-focussing a pair of glasses

US7131725B2 · kind B2 · utility

4Cited by

7References

14Claims

0Family size

Assignee

Carl Zeiss Vision GmbH · DE

Inventors

Eberhard Walh · Weilheim, DE
Peter Schnitzer · Heidenheim, DE
Klaus-Peter Schoettle · Oberkochen, DE
Ingo Kohschmieder · Jena, DE

Key dates

Filing date	Jun 6, 2005
Grant date	Nov 7, 2006
Priority date	—
Expiry date	Jun 6, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/083
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A self-focussing spectacle as well as a method for self-focussing a spectacle are proposed. The spectacle comprises at least one spectacle lens of adjustable refracting power, and means for adjusting the refracting power of the spectacle lens as a function of a measured parameter representing a state of accommodation of a corresponding eye of a user of the spectacle. The means measure the refracting power of the eye directly.

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