Thin antireflection coating for electro-optical device

Details Thin antireflection coating for electro-optical device Thin antireflection coating for electro-optical device

1978-05-17

1980-03-11

Smith, John D.

Electric lamp and discharge devices

Geiger-mueller type

313466, 427 64, 427 74, H01J 2928, H01J 170

Patent

active

041930118

ABSTRACT:
An absorbing coating consisting of three layers sequentially deposited on e aluminized phosphor screen of an electro-optical device such as an image intensifier. The layers are: a transparent dielectric layer with a thickness of about one quarter wavelength of radiation to be absorbed, a thin metal semitransparent layer, and an aluminum oxide protective layer for the thin metal layer. The coating is transparent to electrons bombarding the phosphor, but absorbs radiation which might pass through the photocathode and be reflected from the phosphor aluminum coating back to the photocathode. Such reflected radiation can cause spurious output electrons from the photocathode.

REFERENCES:
patent: 2303563 (1942-12-01), Law
patent: 3280356 (1966-10-01), Stoudenheimer
patent: 3392297 (1968-07-01), Schwartz
patent: 3692576 (1972-09-01), Takayanagi
patent: 3767447 (1973-10-01), Mizuno
patent: 3772562 (1973-11-01), Goodrich
patent: 3781089 (1973-12-01), Fay
patent: 3911165 (1975-10-01), Kanai
patent: 4010304 (1977-03-01), Cohen
patent: 4031552 (1977-06-01), Bosserman
patent: 4048039 (1977-09-01), Daxinger

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