Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament – electric heater – or resistance in shunt with the...
Patent
1975-04-28
1977-01-04
Rolinec, R. V.
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Filament, electric heater, or resistance in shunt with the...
315 74, 315116, 315117, 315DIG7, H01J 1734
Patent
active
040016331
ABSTRACT:
A discharge lamp has an electrically conducting transparent layer and a temperature control which responds to variations of the lamp current to control lamp temperature. A control member causes an auxiliary current to flow intermittently through the said layer. The temperature control is adjusted so that in the operational condition the lamp will always be operating in a voltage-current range having a positive nature. As a result, the lamp does not require an electric stabilizing ballast.
REFERENCES:
patent: 3961222 (1976-06-01), Gallo
Heuvelmans Jean Johan
Van der Werf Jan Evert
VAN Tongeren Hendricus Franciscus Joannes Jacobus
Hostetter Darwin R.
Rolinec R. V.
Smith Robert S.
Trifari Frank R.
U.S. Philips Corporation
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