Picture intensifier tube with memorization

Details Picture intensifier tube with memorization Picture intensifier tube with memorization

1985-09-12

1987-07-14

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313525, 365111, H01J 3150

Patent

active

046804617

ABSTRACT:
An apparatus and method for obtaining a memory function in picture intensifier or amplifier tubes by providing such tubes with an output screen formed of an electroluminescent cell. This cell emits visible light rays when an electric voltage is applied between its surfaces, and possesses hysteresis properties. When voltage is applied to the screen, the picture sent by the electron beam is stored, and re-established when desired, for a given period. The invention can be applied to radiology.

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patent: 4221002 (1980-09-01), Alt et al.
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Applied Physics Letters, vol. 31, No. 6, Sep. 15, 1977, New York, US.
W. E. Howard & P. M. Alt: "Electron-beam switching of thin-film ZnS electroluminescent devices", pp. 399-401.

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