Camera tube and method of manufacturing same

Details Camera tube and method of manufacturing same Camera tube and method of manufacturing same

1981-05-04

1984-02-21

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 36, 445 4, H01J 918

Patent

active

044327382

ABSTRACT:
An electron gun for a camera tube includes an anode and a cathode. The cathode is assembled in a cathode support which can very readily be adjusted relative to the anode in the non-connected condition. In particular, the cathode support and the anode are movable radially with respect to each other and with respect to an axis. An emissive cathode surface and a part of the anode extending perpendicular to the axis remain accurately parallel to each other during the radial movement. As a result of this it is possible to cause the central path of the generated electron beam and the gun axis to coincide so that extra correction coils for aligning the electron beam may be omitted.

REFERENCES:
patent: 2146365 (1939-02-01), Batchelor
patent: 2411184 (1946-11-01), Beggs
patent: 2945295 (1960-07-01), Feaster
patent: 3128407 (1964-04-01), Mattson
patent: 3500520 (1970-03-01), Oess
patent: 3885191 (1975-05-01), Kerstetter
patent: 3928784 (1975-12-01), Weijland
patent: 3984261 (1975-07-01), Corson
patent: 4112327 (1978-09-01), Eisele
Funk Technik, No. 1-1978, pp. 1-6.

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