Deuterium lamp voltage supply means

Details Deuterium lamp voltage supply means Deuterium lamp voltage supply means

1989-03-30

1990-10-09

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device load

Plural cathode and/or anode discharge device load

315330, 315 60, 315 58, H05B 4119

Patent

active

049623354

ABSTRACT:
A deuterium lamp starting circuit utilizing the arc-defining aperture cage of the lamp as the arc-starting electrode to enable the application of a positive, low starting voltage simultaneously with the application of the filament voltage. This positive, low starting voltage is applied to the cage which operates as a starting electrode. After the anode to cathode arc strikes and the anode voltage decreases below the cutoff level, current between the cage and the cathode is reduced and the current flows between the cathode and the anode of the tube.

REFERENCES:
patent: 2809317 (1957-10-01), Meili
patent: 2883584 (1959-04-01), Hill
patent: 3634718 (1972-01-01), Larson
patent: 3900761 (1975-08-01), Freese et al.
patent: 4007397 (1977-02-01), Lake
Hamamatsu brochure, "Deuterium Lamps, UV Light Sources for Spectroscopy" dated prior to date of invention.

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