The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 1980
Filed:
Nov. 29, 1978
Tomiya Sonoda, Machida, JP;
Hiroshi Washida, Yokohama, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
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.