Electron-beam shutter and shutter tube

Details Electron-beam shutter and shutter tube Electron-beam shutter and shutter tube

1981-06-04

1983-09-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313293, 313529, H01J 3150

Patent

active

044031408

ABSTRACT:
An electron-beam shutter for use in an optoelectronic device that forms an image of a luminous event changing at high speed on a screen comprises a shutter plate and a ramp voltage source. The shutter plate has a multitude of through holes extending perpendicular to its surface and a pair of electrodes disposed at its opposite edges and spaced away from each other in a direction perpendicular to the axis of the through holes. The ramp voltage source is connected to the aforesaid electrodes, and the polarity of the ramp voltage changes in a reversing manner. The ramp voltage develops an electric field that crosses the axis of the through holes in the shutter plate and controls the passage of electron beams through the through holes.

REFERENCES:
patent: 4012657 (1977-03-01), Loty
patent: 4350919 (1982-09-01), Johnson et al.

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