Electron beam scanning display apparatus with cathode vibration

Details Electron beam scanning display apparatus with cathode vibration Electron beam scanning display apparatus with cathode vibration

1986-04-02

1989-03-14

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313422, H01J 2970, H01J 2972

Patent

active

048127167

ABSTRACT:
In a flat type cathode ray tube having one or plural parallel (vertical) line cathodes (10) and a plurality of scanning electrodes (12) consisting of insulated parallel (horizontal) metal strips, which are to be impressed with respective scanning pulses (FIG. 6, FIG. 21) to make vertical scanning of electron beams from the line cathodes: undesirable vibrations of the line cathode (10) are suppressed by touching wire-shaped dampers (28, 38A, 38B, 48, 64, 65) on the line cathode (10), and by selecting the frequency of the scanning pulses higher than natural vibration frequency of the line cathode (10).

REFERENCES:
patent: 3114069 (1963-12-01), Peek, Jr. et al.
patent: 3567988 (1971-03-01), Randmer et al.
patent: 4271377 (1981-06-01), Gange et al.
patent: 4622497 (1986-11-01), Miyama et al.
patent: 4714863 (1987-12-01), Yokoyama et al.

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