JPS5774952A - Electrode structure of inline type electron gun - Google Patents

Electrode structure of inline type electron gun

Info

Publication number
JPS5774952A
JPS5774952A JP15126780A JP15126780A JPS5774952A JP S5774952 A JPS5774952 A JP S5774952A JP 15126780 A JP15126780 A JP 15126780A JP 15126780 A JP15126780 A JP 15126780A JP S5774952 A JPS5774952 A JP S5774952A
Authority
JP
Japan
Prior art keywords
grid electrode
electron beams
height
outer side
central
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.)
Granted
Application number
JP15126780A
Other languages
Japanese (ja)
Other versions
JPS636970B2 (en
Inventor
Kazuaki Naiki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15126780A priority Critical patent/JPS5774952A/en
Publication of JPS5774952A publication Critical patent/JPS5774952A/en
Publication of JPS636970B2 publication Critical patent/JPS636970B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/503—Three or more guns, the axes of which lay in a common plane

Abstract

PURPOSE:To equalize focusing conditions of three electron beams with each other, by forming mutually integrated three expanded portions on the sealing surface of the third grid electrode of three integrated electron guns facing the second grid electrode thereof and making the height of the central expanded portion higher than those of outer side expanded portions. CONSTITUTION:Integrated electron guns are constituted by arranging in the beam progressing direction, the first, the second, the third, the fourth grid electrodes 11, 12, 23, 14 and a magnetic pole 15 oppositely to three aligned cathode structure 10R, 10G, 10B, and forming three through holes for electron beams in each electrode. The third grid electrode 23 is made by piling two sealed cylindrical electrodes 23-1, 23-2, and expanded portions 23AR, 23AG,23AB provided with through holes for electron beams in their tips are integrally formed on the surface of the third grid electrode facing the second grid electrode 12, and the height (h)0 of the central expanded portion is made higher than the height (h)1 of the outer side expanded portions. Thereby, optimum focusing conditions of central and both outer side electron beams can be equalized with each other.
JP15126780A 1980-10-28 1980-10-28 Electrode structure of inline type electron gun Granted JPS5774952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15126780A JPS5774952A (en) 1980-10-28 1980-10-28 Electrode structure of inline type electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15126780A JPS5774952A (en) 1980-10-28 1980-10-28 Electrode structure of inline type electron gun

Publications (2)

Publication Number Publication Date
JPS5774952A true JPS5774952A (en) 1982-05-11
JPS636970B2 JPS636970B2 (en) 1988-02-15

Family

ID=15514922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15126780A Granted JPS5774952A (en) 1980-10-28 1980-10-28 Electrode structure of inline type electron gun

Country Status (1)

Country Link
JP (1) JPS5774952A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070644A (en) * 1983-09-26 1985-04-22 Matsushita Electronics Corp Inline type electron gun

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070644A (en) * 1983-09-26 1985-04-22 Matsushita Electronics Corp Inline type electron gun
JPH0427655B2 (en) * 1983-09-26 1992-05-12 Matsushita Electronics Corp

Also Published As

Publication number Publication date
JPS636970B2 (en) 1988-02-15

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