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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP7778476ApriorityCriticalpatent/JPS534464A/en
Publication of JPS534464ApublicationCriticalpatent/JPS534464A/en
Formation Of Various Coating Films On Cathode Ray Tubes And Lamps
(AREA)
Abstract
PURPOSE: To enable the process margin, by enlarging the selecting range of the light source diameter, making smaller the limit of the domain of exposure smaller than the large mask hole, and making the gradient of the luminous intensity distribution under exposure steep.
COPYRIGHT: (C)1978,JPO&Japio
JP7778476A1976-07-021976-07-02Fluorescent surface exposure for color receiving tube
PendingJPS534464A
(en)