JPS52155959A - Electron gun for cathode ray tube - Google Patents

Electron gun for cathode ray tube

Info

Publication number
JPS52155959A
JPS52155959A JP7215276A JP7215276A JPS52155959A JP S52155959 A JPS52155959 A JP S52155959A JP 7215276 A JP7215276 A JP 7215276A JP 7215276 A JP7215276 A JP 7215276A JP S52155959 A JPS52155959 A JP S52155959A
Authority
JP
Japan
Prior art keywords
ray tube
cathode ray
electron gun
obtaining
ocus
Prior art date
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.)
Pending
Application number
JP7215276A
Other languages
Japanese (ja)
Inventor
Masaaki Yamauchi
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 Ltd filed Critical Hitachi Ltd
Priority to JP7215276A priority Critical patent/JPS52155959A/en
Publication of JPS52155959A publication Critical patent/JPS52155959A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable the cathode ray tube having excellent f ocus performance, by obtaining the electron beam accelerating electric field from the high voltage side thru the enlargement of the hole diameter of the grid G2 electrode of the cathode ray tube electron gun and by obtaining the most suitable focus voltage from small to large current region.
COPYRIGHT: (C)1977,JPO&Japio
JP7215276A 1976-06-21 1976-06-21 Electron gun for cathode ray tube Pending JPS52155959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7215276A JPS52155959A (en) 1976-06-21 1976-06-21 Electron gun for cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7215276A JPS52155959A (en) 1976-06-21 1976-06-21 Electron gun for cathode ray tube

Publications (1)

Publication Number Publication Date
JPS52155959A true JPS52155959A (en) 1977-12-24

Family

ID=13480988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7215276A Pending JPS52155959A (en) 1976-06-21 1976-06-21 Electron gun for cathode ray tube

Country Status (1)

Country Link
JP (1) JPS52155959A (en)

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