(Barium hafnate: Cu) phosphors and phosphor screens
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United States of America Patent
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-
Dec 16, 1997
Grant Date -
N/A
app pub date -
Dec 19, 1995
filing date -
Dec 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
(Barium halfnate:Cu) phosphors and phosphor screens. The phosphor screens include a support and a luminescent portion. The phosphor includes oxygen and a combination of species characterized by the relationship: (Ba.sub.1-q M.sub.q)(Hf.sub.1-z-e Zr.sub.z Mg.sub.e):yT where M is selected from the group consisting of Ca and Sr and combinations thereof; T is Cu; q is from 0 to 0.15; z is from 0 to 1; e is from 0 to 0.10; z+e is from 0 to 1; and y is from 1.times.10.sup.-6 to 0.02.
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