Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Plural cathode and/or anode discharge device load
Patent
1982-01-04
1985-05-07
Sikes, William L.
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Plural cathode and/or anode discharge device load
313306, 313310, 313350, 313629, 313632, H05B 4116, H05B 4124
Patent
active
045160570
ABSTRACT:
The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope, having a phosphor coating in its inner surface, the envelope encloses a thermionic cathode having a number of segments for emitting electrons, a plurality of anodes for accelerating the electrons and forming a corresponding number of electron beams simultaneously in two directions, and a fill material, such as mercury, which emits ultraviolet radiation upon excitation. The multi-electrode array configuration provides an extended region of electron beam excitation and thereby more visible light. A single power source and pair of connecting conductors provide both cathode heating current and electrode potential difference functions. In addition, this configuration provides for a greater and more complete discharge of the volume within the envelope than single electrode elements. The present invention permits a higher operating voltage, lower power density, and a lower operating temperature for the lamp.
REFERENCES:
patent: 2441863 (1948-05-01), Zabel
patent: 2946909 (1960-07-01), Morehead
patent: 3013169 (1961-12-01), Gungle et al.
Budinger A. Bowman
Byszewski Wojciech W.
Proud Joseph M.
Riseberg Leslie A.
GTE Laboratories Incorporated
Sikes William L.
Wise Robert E.
Yeo J. Stephen
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