Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Sony Corp
Original Assignee
Sony Corp
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Filing date
Publication date
Application filed by Sony CorpfiledCriticalSony Corp
Priority to JP523177ApriorityCriticalpatent/JPS5390753A/en
Publication of JPS5390753ApublicationCriticalpatent/JPS5390753A/en
Cathode-Ray Tubes And Fluorescent Screens For Display
(AREA)
Abstract
PURPOSE: To prevent the illumination surface from being colored into brown by the electron beam, by reprocessing the face plate formed by silicate glass and forming the silicon dioxide film on the internal surface of the face plate.