Dimmer for electrodeless discharge lamp
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United States of America Patent
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Oct 1, 1996
Issued Date -
N/A
app pub date -
Oct 26, 1994
filing date -
Oct 14, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement for adjusting the intensity of an electrodeless discharge lamp is described. In one embodiment the high-frequency signal delivered to the induction coil is interrupted during a predetermined portion of a full duty cycle. This function is provided by a dimmer control unit which may be in an analog or digital form and may respond to a control signal provided by a potentiometer, a three-way lighting fixture or an addressable, remote controlled interface with data transmitted over the power lines or over a radio or infrared communication channel. In another embodiment the dimmer control unit alters the amplitude of the high-frequency signal supplied to the lamp's induction coil.
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