Lighting control for high intensity discharge lamp
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United States of America Patent
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-
Mar 13, 1984
Grant Date -
N/A
app pub date -
Nov 22, 1982
filing date -
Nov 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is directed to a circuit and method for effectively controlling the output illumination of high intensity discharge lamps. Electronic circuitry monitors the lamp current, lamp voltage and lighting output to result in a maintained lighting level while providing increased efficiency and energy conservation. The use of electronic controls eliminates the complicated magnetic circuitry found to be necessary for previous methods of control.
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Cited Art Landscape
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