Phosphor and Light-Emitting Device Using Same
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United States of America Patent
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Issued Date -
Sep 27, 2007
app pub date -
May 27, 2005
filing date -
Jun 18, 2004
priority date (Note) -
Abandoned
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Abstract
A novel phosphor capable of exhibiting strong light emissions over a wide excitation wavelength range and a light-emitting device using such a phosphor are provided. Said phosphor is characterized by the fact that it contains a metal oxide containing at least one alkaline earth element selected from the group composed of Ca, Sr, and Ba, at least one element selected from the group composed of Be, Cu, Zn, Pb, Cd, Mg, and Sn, at least one element selected from the group composed of B, Al, Ga, and In, and at least one element selected from the group composed of P and V, in which at least one element selected from the group composed of Ce, Pr, Sm, Nd, Gd, Eu, Tb, Dy, Ho, Tm, Er, Yb, and Mn is contained as an added activator.
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