Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1982-01-04
1984-05-22
Moore, David K.
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313629, H01J 162, H01J 6304
Patent
active
044503806
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 on 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, 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 perform 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
Budinger A. Bowman
Byszewski Wojciech W.
Proud Joseph M.
Riseberg Leslie A.
GTE Laboratories Incorporated
Moore David K.
Wise Robert E.
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