Image pickup tube

Details Image pickup tube Image pickup tube

1986-04-09

1987-12-15

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313389, H01J 2958

Patent

active

047135883

ABSTRACT:
A magnetic-focus electrostatic-deflection image pickup tube utilizes a magnetic field for electron beam focusing and an electrostatic field for electron beam deflection. The magnetic field generated by a magnetic focus coil is distributed on the tube axis to have the peak of intensity which is offset toward the electron gun. The electron beam can be deflected and focused to provide a minimized beam spot with less distortion.

REFERENCES:
patent: 3319110 (1967-05-01), Schlesinger
patent: 3919597 (1975-11-01), Meacham
patent: 3952227 (1976-04-01), Van Alphen
patent: 4382213 (1983-05-01), Kajimura et al.
patent: 4527846 (1985-07-01), Hertel

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