Electron gun cathode support

Details Electron gun cathode support Electron gun cathode support

1979-07-11

1982-01-05

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313452, H01J 2902

Patent

active

043096387

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 nonconnected 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: 3128407 (1964-04-01), Mattson
patent: 3885191 (1975-05-01), Kerstetter
patent: 3894261 (1975-07-01), Corson
patent: 3928784 (1975-12-01), Weijland
patent: 4112327 (1978-09-01), Eisele
Funk Technik, No. 1--1978, pp. 1-6.

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