Optical memory plate or panel
AssigneeAgfa-Gevaert
InventorsLuc Struye, Paul Leblans, Johan Lamotte
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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.
Claims60
An optical memory plate providing radiation inscription of data and read-out of thus stored inscription data, characterized in that said optical memory comprises a europium doped alkali metal halide storage phosphor layer, substantially free of alkaline earth metals.
Dependencies are inferred from the claim text.