Apparatus for influencing electron beam movement

Details Apparatus for influencing electron beam movement Apparatus for influencing electron beam movement

1981-03-17

1983-06-28

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358 10, 335210, H01J 2970, H01J 2976

Patent

active

043908152

ABSTRACT:
An apparatus for influencing the movement of electron beams of a cathode ray tube comprises means for magnetizing a strip of magnetizable material disposed about the neck of the tube. The magnetizing means includes a pair of members each incorporating magnetizing coils. Means including a hinge is coupled to the members for providing a first opened position of the members for placing the magnetization on the tube neck and a second closed position of the members for encircling the tube neck. A source of magnetizing current is coupled to the magnetizing coils for developing magnetic fields in the vicinity of the coils for magnetizing the magnetizable strip.

REFERENCES:
patent: 4105983 (1978-08-01), Barten et al.
patent: 4138628 (1979-02-01), Smith
patent: 4159456 (1979-06-01), Smith
patent: 4162470 (1979-07-01), Smith
patent: 4189659 (1980-02-01), Andre et al.
patent: 4211960 (1980-07-01), Barten et al.

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