Method for making electrodes and vacuum tube using same

Details Method for making electrodes and vacuum tube using same Method for making electrodes and vacuum tube using same

2002-12-10

2010-10-12

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

C315S005380, C315S039300

Reexamination Certificate

active

07812540

ABSTRACT:
The invention relates to vacuum tubes and especially to electron tubes. To produce the tube, and especially an electron collector comprising several electrodes, the electrodes are produced in the form of blocks of ceramic having a high thermal conductivity. The blocks are electrically conducting (at least on the surface). They are preferably made of an insulating ceramic such as aluminium nitride, and are made conductive over part of their surface. The conductive surface part is preferably formed by a conductive ceramic, preferably based on titanium nitride, or on similar conductive ceramic materials. Thus, increased strength, better heat dissipation and weight reduction are achieved.

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