Patent · US Expired

Information system and method for providing information using a holographic element

US7641342B2 · kind B2 · utility

164Cited by

7References

16Claims

0Family size

Assignee

Metaio GmbH · DE

Inventors

Ronald H. Eberl · Schwanau, DE
Heinrich A. Eberl · Probstried, DE
David Dickerson · Freising, DE

Key dates

Filing date	Oct 8, 2001
Grant date	Jan 5, 2010
Priority date	—
Expiry date	Apr 9, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0178
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In an information system and a method for providing information in correlation with light that is incident on an eye, a pair of spectacles includes a holographic element that is supported in front of the eye of a wearer of the spectacles. An optical scanning device detects light that is incident on the eye via the holographic element.

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