Discharge lamps and methods for making discharge lamps
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United States of America Patent
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-
Dec 3, 1996
Issued Date -
N/A
app pub date -
Apr 4, 1995
filing date -
May 20, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In some embodiments, a light bulb for an electrodeless discharge lamp has a protuberance such that the cold spot of the bulb is located in the protuberance. The protuberance is spaced from the induction coil of the lamp so as to be easily accessible. Hence the cold spot temperature is easy to measure and control. In some embodiments, heat sinks are provided to cool the light bulb. An active control element including a Peltier element is provided to control the cold spot temperature.
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