Glow discharge lamp having zero anode voltage drop

Details Glow discharge lamp having zero anode voltage drop Glow discharge lamp having zero anode voltage drop

1989-11-30

1991-06-25

Yusko, Donald J.

Electric lamp and discharge devices

With gas or vapor

Negative or cathode glow device

313620, 313621, 313632, 313642, 313643, H01J 6167

Patent

active

050270303

ABSTRACT:
A glow discharge lamp includes a light-transmitting envelope containing a rare gas fill material. The envelope contains a spherical-shaped region having a predetermined internal radius R. A phosphor coating is disposed on the inner surface of the envelope. Anode and cathode electrodes are disposed within the envelope and spaced a predetermined distance d thereapart. The voltage drop of the cathode electrode is less than the excitation potential of the rare gas fill material. The anode electrode has a predetermined effective surface area S.sub.a such that the relationship Rd/S.sub.a is within the range of from about 5.0 to 11.0.

REFERENCES:
patent: 2003493 (1935-06-01), Rentschler et al.
patent: 2507696 (1950-05-01), Depp
patent: 2832912 (1958-04-01), Lake
patent: 4879493 (1989-11-01), Mastuno et al.
patent: 4904900 (1990-02-01), Bouchard et al.
patent: 4929868 (1990-05-01), Bouchard

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