Patent · US Expired

Optical memory plate or panel

US7220979B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Luc Struye · Mortsel, BE
Paul Leblans · Kontich, BE
Johan Lamotte · Rotselaar, BE

Key dates

Filing date	Dec 16, 2003
Grant date	May 22, 2007
Priority date	—
Expiry date	Jun 10, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG11B2007/24326
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An optical memory plate particularly suitable for identification purposes or protection against forgery and counterfeiting radiation provides inscription of data and read-out of thus stored inscription data, comprises a europium doped alkali metal halide storage phosphor layer, and, more preferably, a stimulable CsBr:Eu phosphor substantially free of alkaline earth metals.

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