Sodium vapor lamp configuration

Details Sodium vapor lamp configuration Sodium vapor lamp configuration

1974-12-16

1976-06-01

Rolinec, R. V.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Filament or electric heater in series with a discharge...

315 46, H01J 1734

Patent

active

039612228

ABSTRACT:
In a sodium vapor lamp, a means for rapid warm-up and/or maintaining the temperature of the discharge tube in order to quickly achieve and maintain the sodium vapor pressure at a desired level is disclosed. The discharge tube is surrounded with a resistive conductor so as to ohmically heat the tube to a desired temperature, e.g. 270.degree.C. The heating element is a resistive tube coating.

REFERENCES:
patent: 3283202 (1966-11-01), Pennington
patent: 3806748 (1974-04-01), Cohen et al.
patent: 3878416 (1975-04-01), Roche et al.

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