Gas discharge tube

Details Gas discharge tube Gas discharge tube

1995-11-02

1997-04-08

O'Shea, Sandra L.

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313631, 313613, 313588, 313243, 313292, H01J 1702, H01J 188

Patent

active

056191014

ABSTRACT:
A gas discharge tube includes an envelope for sealing a gas, lead pins and a light-emitting assembly. The light-emitting assembly includes: a focusing electrode support member of a conductive material; a hot cathode for emitting thermoelectrons; an anode for receiving thermoelectrons; a focusing electrode for converging paths of thermoelectrons; a spacer of an insulator being arranged between the focusing electrode support member and the anode; and an anode support member of an insulator for pushing the anode onto the focusing electrode support member through the spacer. A gas discharge tube having a long service life and capable of improving the operational stability during long-time continuous light emission can be provided.

REFERENCES:
patent: 5057742 (1991-10-01), Kawai et al.
patent: 5191260 (1993-03-01), Kawai et al.
patent: 5552669 (1996-09-01), Ikedo et al.

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