Single cathode beam mode fluorescent lamp for DC use

Details Single cathode beam mode fluorescent lamp for DC use Single cathode beam mode fluorescent lamp for DC use

1984-01-20

1985-01-15

Sikes, William L.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural cathode and/or anode discharge device load

313306, 313310, 313599, 313629, 313632, 315334, 315337, 315DIG1, H05B 4116, H05B 4124

Patent

active

044940467

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, enclosing a single electrode including a thermionic cathode for emitting electrons and an integral anode for accelerating the electrons and forming an electron beam, and a fill material, such as mercury, which emits ultraviolet radiation upon excitation. The electrode configuration provides for use of a single power source and minimal number of power leads. In addition, a separate cathode heater filament is not required.

REFERENCES:
patent: 1617179 (1921-12-01), Smith
patent: 1901128 (1933-03-01), Smith
patent: 1943336 (1934-02-01), Smith
patent: 2441863 (1948-05-01), Zabel
patent: 2946909 (1960-07-01), Morehead
patent: 3013169 (1961-12-01), Gungle et al.

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