Gated voltage apparatus for high light resolution and bright sou

Details Gated voltage apparatus for high light resolution and bright sou Gated voltage apparatus for high light resolution and bright sou

1991-03-19

1992-09-08

Howell, Janice A.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313537, H01J 3150

Patent

active

051460777

ABSTRACT:
A bright source protection circuit for an image intensifier tube modulates the voltage supplied to the tube's photocathode in response to current drawn by the photocathode such that the photocathode is pulsed on and off until the desired photocathode current is achieved.

REFERENCES:
patent: 3694659 (1972-09-01), Ramsay et al.
patent: 3739178 (1973-06-01), Chow
patent: 4134009 (1979-01-01), Dippold
patent: 4195222 (1980-03-01), Fouilloy
patent: 4882481 (1989-11-01), Gilligan et al.
patent: 4952793 (1990-08-01), Cantrell et al.

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