Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament or electric heater in series with a discharge...
Patent
1984-05-25
1986-03-04
Dixon, Harold
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Filament or electric heater in series with a discharge...
313246, 313355, 315241R, H01J 744
Patent
active
045742197
ABSTRACT:
A lighting unit having a filament serving as a supplementary light source, an improved gas discharge tube serving as a main light source having improved electrodes and an improved ballast circuit operating in cooperation with the improved electrodes is disclosed. Various embodiments of the improved electrodes and various embodiments of the improved ballast circuits are disclosed. The improved ballast circuit operating in cooperation with the improved electrodes provides for thermionic arc conditions in the operation of the gas discharge tube substantially immediately after the application of voltage applied to the unit.
REFERENCES:
patent: 3364375 (1968-01-01), McCarty
patent: 4136227 (1979-01-01), Saito
patent: 4232243 (1980-11-01), Rigden
patent: 4518890 (1985-05-01), Taguchi et al.
patent: 4533852 (1985-08-01), Frank et al.
Vacuum Breakdown Observations on a W-ThO.sub.2 Cerinet Cathode by Bouchard et al., 1970 Conference on Electron Device Techniques pp. 23, 24 Sep. 1970, New York.
Blank John M.
Davenport John M.
Hansler Richard L.
Homa Arthur S.
Leskovec Robert A.
Dixon Harold
General Electric Company
Jacob Fred
McMahon John P.
Schlamp Philip L.
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