Lamp having good maintenance behavior of brightness and color coordinations
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United States of America Patent
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Jan 26, 2010
Grant Date -
Oct 26, 2006
app pub date -
Mar 28, 2006
filing date -
Mar 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed herein is a lamp including a specific phosphor and having good ability to maintain brightness and color coordinates. Particularly, this invention provides a lamp using a phosphor in which a magnetoplumbite phase is epitaxially formed on the surface of a phosphor having a β alumina phase.
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