Cold cathode vacuum discharge tube

Details Cold cathode vacuum discharge tube Cold cathode vacuum discharge tube

1996-10-03

1998-03-10

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With coating, e.g., providing protective coating on...

427 78, H01J 902

Patent

active

057254087

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: 4335314 (1982-06-01), Geerk et al.
patent: 4404234 (1983-09-01), Zuk
patent: 5141460 (1992-08-01), Jaskie et al.

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