Image intensifier tube with a light-absorbing electron-permeable

Details Image intensifier tube with a light-absorbing electron-permeable Image intensifier tube with a light-absorbing electron-permeable

1980-02-05

1981-06-23

Demeo, Palmer C.

Electric lamp and discharge devices

Secondary emission prevention

Nonemissive material

313466, H01J 2928, H01J 3150

Patent

active

042753260

ABSTRACT:
An image intensifier tube has a light-absorbing electron-permeable layer covering an aluminum film overlying a layer of luminescent material in the anode structure of the tube. The light absorbing layer is silicon or boron, or a compound of silicon or boron, and has a thickness of about one-fourth the average wave length of light which impinges upon the photocathode during operation of the image intensifier tube.

REFERENCES:
patent: 3254253 (1966-05-01), Davis et al.
patent: 3692576 (1972-09-01), Takayanagi et al.
patent: 4155024 (1979-05-01), Sonoda
patent: 4193011 (1980-03-01), Pollehn et al.

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