Alignment apparatus for electron beam tube

Details Alignment apparatus for electron beam tube Alignment apparatus for electron beam tube

1979-11-14

1981-02-24

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335214, H01F 100

Patent

active

042530784

ABSTRACT:
Means for aligning the electron beam of an electron beam in a cathode ray tube so as to adjust the alignment and which includes a rear bobbin portion surrounding the cathode ray tube and which is mounted at least one cylindrical shaped magnet that is magnetized in the direction of a diameter of the cylinder and which can be rotated so as to correct for misalignment in the tube. In one embodiment, two rotatable magnets mounted at right angles relative to each other are utilized and in the second embodiment a single magnet can be utilized and in which the supporting bobbin in which the magnet is mounted can be rotated by 180.degree. is provided.

REFERENCES:
patent: 3743983 (1973-07-01), Holman
patent: 3974421 (1976-08-01), Holman
patent: 4039986 (1977-08-01), Nakazawa et al.
patent: 4191936 (1980-03-01), Colgan, Jr.

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