Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1974-07-26
1976-12-28
Wilbur, Maynard R.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
315 30, 315307, 315389, H01J 2952, H01J 2954
Patent
active
040004406
ABSTRACT:
A beam of charged particles has its alignment and brightness alternately controlled in accordance with the current of the beam. The measurements of the current and any corrections for alignment or brightness are made when the beam is not applied to a target.
REFERENCES:
patent: 3619717 (1971-11-01), Lee
patent: 3644700 (1972-02-01), Kruppa
Hall Alan V.
Perkins Merlyn H.
Pfeiffer Hans C.
Weber Edward V.
Woodard Ollie C.
Berger Richard E.
Galanthay Theodore E.
International Business Machines - Corporation
Leach, Jr. Frank C.
Wilbur Maynard R.
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