Twin anode beam mode fluorescent lamp

Details Twin anode beam mode fluorescent lamp Twin anode beam mode fluorescent lamp

1982-01-04

1985-05-21

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

045188971

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 thermionic cathode for emitting electrons, a pair of anodes for accelerating the electrons and forming electron beams, and a fill material, such as mercury, which emits ultraviolet radiation upon excitation. The two anode configuration provides an extended region of electron beam excitation. In addition, a separate cathode heater filament is not required due to the anode configuration. As a result this lamp is operated with a single power source and only two conductors connecting the power source to the electrodes. This invention further provides a high degree of self-stabilization of discharge current by means of the twin parallel anode configuration.

REFERENCES:
patent: 2441863 (1948-05-01), Zabel
patent: 2946909 (1960-07-01), Morehead
patent: 3013169 (1961-12-01), Gungle et al.

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