Manufacturing method of indirectly heated cathode

Details Manufacturing method of indirectly heated cathode Manufacturing method of indirectly heated cathode

1986-03-12

1992-04-07

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

427111, H01J 912

Patent

active

051023636

ABSTRACT:
The present invention relates to the manufacturing method of an indirectly heated cathode comprising the formation of a black film on the internal surface of a cathode sleeve, which contains a reducing material, the black film being formed by heat reduction of a thin film of a metal oxide, which has previously been formed on the internal surface of the cathode sleeve. The indirectly heated cathode manufactured by this method has shorter emission warm up time for the emission of electrons and lower power consumption compared with those manufactured by conventional methods.

REFERENCES:
patent: 3170772 (1965-02-01), Sato
patent: 3691421 (1972-09-01), Decker
patent: 3765939 (1973-10-01), Reid
patent: 4009409 (1977-02-01), Buescher et al.
patent: 4126489 (1978-11-01), Williams

Affiliated with

Also associated with

Rating

Manufacturing method of indirectly heated cathode does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacturing method of indirectly heated cathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing method of indirectly heated cathode will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1892185