Incandescent lamp having an illuminant that contains a high-temperature resistant metal compound
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United States of America Patent
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Mar 22, 2011
Grant Date -
Feb 19, 2009
app pub date -
Oct 18, 2005
filing date -
Oct 26, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an incandescent lamp (1) which is provided with an illuminant (7) which is inserted in a bulb (2) together with a filling in a vacuum-tight manner, the illuminant (7) comprising a metal carbide that has a melting point above that of tungsten. The bulb also comprises a source and a sink for a material of which the illuminant is depleted during use.
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