Tellurium lamp
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United States of America Patent
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Jul 20, 1999
Issued Date -
N/A
app pub date -
Jul 23, 1997
filing date -
Oct 25, 1990
priority date (Note) -
Expired
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Abstract
A lamp for providing visible radiation includes tellurium or a tellurium compound in the fill. This substance is present in an amount such that when the fill is excited with sufficient power, substantially all of the radiation resulting from tellurium is emitted at wavelengths exceeding 400 nm. When tellurium is added to a sulfur or selenium based lamp for emitting visible radition, the spectrum is shifted towards the red region.
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