Method of manufacturing an input screen for an image intensifier

Details Method of manufacturing an input screen for an image intensifier Method of manufacturing an input screen for an image intensifier

1978-11-29

1980-12-16

Hoffman, James R.

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

204 35N, 204 38A, 427 65, 427 70, 427157, G01T 116

Patent

active

042397910

ABSTRACT:
A method of manufacturing an input screen for an image intensifier which comprises the steps of thermally depositing a phosphor layer of alkaline metal halide on one side of a substrate to provide a phosphor layer formed of columnar crystals extending in a direction substantially perpendicular to the plane of the substrate; treating the surface of the phosphor layer by a liquid material of low boiling point and incapable of dissolving the phosphor, thereby producing cracks extending in a direction substantially perpendicular to the plane of the substrate in said phosphor layer; and forming a photoemissive layer on the surface of the phosphor layer, thereby enabling the phosphor layer to have a high light-guiding property and ensuring the prominent elevation of the resolving power of an image intensifier.

REFERENCES:
patent: 3825763 (1974-07-01), Ligtenberg et al.

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