JPS54105926A - Static convergence magnet assembly - Google Patents

Static convergence magnet assembly

Info

Publication number
JPS54105926A
JPS54105926A JP1242178A JP1242178A JPS54105926A JP S54105926 A JPS54105926 A JP S54105926A JP 1242178 A JP1242178 A JP 1242178A JP 1242178 A JP1242178 A JP 1242178A JP S54105926 A JPS54105926 A JP S54105926A
Authority
JP
Japan
Prior art keywords
magnet
assembly
circular
electron beam
volume
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
JP1242178A
Other languages
Japanese (ja)
Inventor
Minoru Watabe
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 JP1242178A priority Critical patent/JPS54105926A/en
Publication of JPS54105926A publication Critical patent/JPS54105926A/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

Abstract

PURPOSE:To obtain the necessary magnetic force difference through the magnetization under the fixed condition by providing the volume difference to an opposing pair of circular magnets in order to obtain the different magnetic flux density under the fixed condition through variation of the magnetic characteristics between the two circular magnets. CONSTITUTION:Static convergence magnet assembly 5 is located at the circumference of neck tube 2a of in-line electronic gun type color CRT2 to control magnetically the electron beam running path. For such assembly 5, circular magnet 3 is constituted with use of a pair of circular magnet 6a and 6b with the same pole number, and then assembly 5 is formed by three unit of magnet 3. Among magnet 6a and 6b, the thickness of 6a at the side where the beam enters is increased to the propagation direction of the electron beam in order to increase the volume of 6a; while the volume of 6b is decreased by reducing the thickness of the magnet at the side where the electron beam goes out. Thus, the necessary magnetic force difference can be obtained through the magnetization under the fixed condition.
JP1242178A 1978-02-08 1978-02-08 Static convergence magnet assembly Pending JPS54105926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1242178A JPS54105926A (en) 1978-02-08 1978-02-08 Static convergence magnet assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1242178A JPS54105926A (en) 1978-02-08 1978-02-08 Static convergence magnet assembly

Publications (1)

Publication Number Publication Date
JPS54105926A true JPS54105926A (en) 1979-08-20

Family

ID=11804793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1242178A Pending JPS54105926A (en) 1978-02-08 1978-02-08 Static convergence magnet assembly

Country Status (1)

Country Link
JP (1) JPS54105926A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157045U (en) * 1986-03-26 1987-10-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157045U (en) * 1986-03-26 1987-10-06
JPH0535556Y2 (en) * 1986-03-26 1993-09-09

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