Composite discharge lamp having center, arc electrodes coated fo

Details Composite discharge lamp having center, arc electrodes coated fo Composite discharge lamp having center, arc electrodes coated fo

1997-09-29

2000-08-01

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313113, 313492, 313613, 313632, 313352, H01J 6106

Patent

active

060971525

ABSTRACT:
A composite glow discharge lamp having an elongated glass tube, in which an electrode assembly is located in said elongated glass tube at each of opposite ends thereof, the electrode assembly comprising a center electrode for emitting electrons and a glow electrode surrounding the center electrode, and the glow electrode being formed of an enclosure having an opening and a closed bottom and laid so that the opening faces the opposite end of the glass tube which is near thereto, and the closed bottom faces the longitudinally middle part of the glass tube, thereby it is possible to prevent blackening of the glass tube, and to prolong the use life of the composite discharge lamp.

REFERENCES:
patent: 2128270 (1938-08-01), Spanner et al.
patent: 2692350 (1954-10-01), Arnott
patent: 2917650 (1959-12-01), Caumont
patent: 3215882 (1965-11-01), Toomey
patent: 4032814 (1977-06-01), Shurgan et al.
patent: 5214351 (1993-05-01), Nieda

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