Gas discharge tube and means for maintaining an invisible gas di

Details Gas discharge tube and means for maintaining an invisible gas di Gas discharge tube and means for maintaining an invisible gas di

1976-11-16

1978-06-20

Willis, Davis L.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy controlled regulation of the current supply...

315169R, H05B 3702, H05B 41392

Patent

active

040964116

ABSTRACT:
A gas discharge display tube is supplied with a small DC current at a level to maintain an invisible gas discharge and with a pulse-shaped supply voltage having a controllable pulse duration whereby a stable discharge is obtained at a very low brilliance level and voltage transients are substantially eliminated.

REFERENCES:
patent: 3600631 (1971-08-01), Cake
patent: 3737803 (1973-06-01), Kojima et al.
patent: 3875527 (1975-04-01), Garcia
Electron Design, vol. 11, May 24, 1976, p. 98, Michael A. Molack, "Photoresistor provides automatic dimming of electronic display systems".

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