JPS55105935A - Color picture tube device - Google Patents

Color picture tube device

Info

Publication number
JPS55105935A
JPS55105935A JP1219579A JP1219579A JPS55105935A JP S55105935 A JPS55105935 A JP S55105935A JP 1219579 A JP1219579 A JP 1219579A JP 1219579 A JP1219579 A JP 1219579A JP S55105935 A JPS55105935 A JP S55105935A
Authority
JP
Japan
Prior art keywords
ring
neck
permanent magnet
shaped
poles
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
JP1219579A
Other languages
Japanese (ja)
Inventor
Hisashi Okada
Katsue Morohashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1219579A priority Critical patent/JPS55105935A/en
Publication of JPS55105935A publication Critical patent/JPS55105935A/en
Pending 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702—Convergence correction arrangements therefor
    • H01J29/703—Static convergence systems

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To facilitate an easy color adjustment, by arranging a ring-shaped permanent magnet, which is rotatable outside the neck, at a face-to-face position with a ring-shaped magnetic unit inside the neck. CONSTITUTION:Facing a ring-shaped magnetic unit 12 disposed within a neck 5, is provided on the outer wall of the neck 5 a rotatable ring-shaped permanent magnet 22 having at least a set of four magnetic poles. In such a arrangement, when magnetizing the ring-shaped magnetic unit 12 within the neck 5 in such a manner as to generate a plurality of magnetic poles, a magnetization at about six poles is able to shift electron beam guns 15R, 15B in such a fashion as to meet the purpose in the relation to the external four-poled ring-shaped permanent magnet. Without the provision of such an external four-poled ring-shaped permanent magnet, it is normally to magnetize at 12 poles for the same purpose. Thus, a color displacement can be easily corrected.
JP1219579A 1979-02-07 1979-02-07 Color picture tube device Pending JPS55105935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1219579A JPS55105935A (en) 1979-02-07 1979-02-07 Color picture tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1219579A JPS55105935A (en) 1979-02-07 1979-02-07 Color picture tube device

Publications (1)

Publication Number Publication Date
JPS55105935A true JPS55105935A (en) 1980-08-14

Family

ID=11798615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1219579A Pending JPS55105935A (en) 1979-02-07 1979-02-07 Color picture tube device

Country Status (1)

Country Link
JP (1) JPS55105935A (en)

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