Luminescent screen including a luminescent zeolite
AssigneeU.S. Phillips Corporation
InventorsUlrich H. Kynast, Volker U. Weiler
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Abstract
A luminescent screen includes a luminescent zeolite containing rare earths, such as terbium (Tb), and europium (Eu), and an oxide of a transition metal, such as, molybdenum (Mo), tungsten (W), niobium (Nb), and tantalum (Ta). It was found that a zeolite containing both terbium, and tungsten oxide had an absorbability that was approximately 60 times as high as that of a zeolite containing only terbium, thus increasing the luminescent efficiency of the zeolite.
Claims8
Luminescent screen comprising a bearer provided with a luminescent material comprising a zeolite containing rare earth ions, characterized in that the zeolite further comprises a transition metal oxide, wherein said transition metal oxide consists essentially of tungsten oxide.
Dependencies are inferred from the claim text.