Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1981-09-25
1984-08-07
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
315DIG5, 315DIG7, 315 92, H05B 3702, H05B 3904, H05B 4136
Patent
active
044646070
ABSTRACT:
An energy efficient lighting unit is described designed for functional similarity to the incandescent light used in the home. The light unit utilizes a metal vapor arc lamp as the main source of light supplemented by a standby filamentary light source. The lighting unit includes means for converting 60 hertz ac to dc, and a dc energized operating network comprising an inverter operating at above audible frequencies (e.g. 30-40 KHz). The operating network produces a sequence for the arc lamp and the standby filamentary light source appropriate to each operating state of the arc lamp.
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patent: 3659146 (1972-04-01), Munson
patent: 4151445 (1979-04-01), Davenport et al.
patent: 4232252 (1980-11-01), Peil
patent: 4320325 (1982-03-01), Anderson
patent: 4350930 (1982-09-01), Peil et al.
patent: 4358717 (1982-11-01), Elliot
patent: 4392081 (1983-07-01), Brown et al.
patent: 4399392 (1983-08-01), Buhrer
Brown Thomas A.
Harris James E.
Peil William
Chatmon Saxfield
General Electric Company
Lang Richard V.
McMahon John P.
Schlamp Philip L.
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