Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Plural periodic switches or multiple contact periodic switch
Patent
1982-03-08
1983-08-09
Dixon, Harold A.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Plural periodic switches or multiple contact periodic switch
315 49, 315 72, 315161, 315210, H05B 3702
Patent
active
043981305
ABSTRACT:
The present invention relates to a lighting unit having low and high light levels and employing an efficient arc lamp as the source of light during the high level setting. The unit employs a filamentary light source for the production of light during low light level operation, the filament acting as a resistive ballast for the arc lamp during high level operation. Practical embodiments operate in a conventional three-way light socket with the sequences being off, low, high and low, and off, low, high, and high.
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Crosby Robert J.
Davenport John M.
McFadyen Robert J.
Peil William
Baker Carl W.
Dixon Harold A.
General Electric Company
Lang Richard V.
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