Cold cathode vacuum discharge tube

Details Cold cathode vacuum discharge tube Cold cathode vacuum discharge tube

1995-09-28

1998-04-14

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

313602, 313603, H01J 1748, H01J 1730, H01J 1746, H01J 6154

Patent

active

057396370

ABSTRACT:
A cold cathode vacuum discharge tube, and method for making same, with an interior surface of the trigger probe coated with carbon deposited by carbon vapor deposition (CVD) or diamond-like carbon (DLC) deposition. Preferably a solid graphite insert is employed in the probe-cathode structure in place of an aluminum bushing employed in the prior art. The CVD or DLC probe face is laser scribed to allow resistance trimming to match available trigger voltage signals and to reduce electrical aging.

REFERENCES:
patent: 3663855 (1972-05-01), Boettcher
patent: 3772570 (1973-11-01), Lange et al.
patent: 4123682 (1978-10-01), Lange et al.
patent: 4404234 (1983-09-01), Zuk
patent: 5142194 (1992-08-01), Jacubeit et al.
patent: 5189345 (1993-02-01), Branston et al.

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