Fluorescent lamp having ultraviolet reflecting layer
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United States of America Patent
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Oct 4, 2005
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N/A
app pub date -
Jul 31, 2003
filing date -
Jul 31, 2003
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Abstract
A fluorescent lamp with an ultraviolet reflecting barrier layer between the glass envelope and the phosphor layer(s). The barrier layer is a blend of gamma alumina, alpha alumina and theta alumina, such as 5-80 weight percent gamma alumina, 5-80 weight percent alpha alumina, and 5-80 weight percent theta alumina.
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