JPS5650037A - Electromagnetic focusing type colour picture tube - Google Patents

Electromagnetic focusing type colour picture tube

Info

Publication number
JPS5650037A
JPS5650037A JP12408979A JP12408979A JPS5650037A JP S5650037 A JPS5650037 A JP S5650037A JP 12408979 A JP12408979 A JP 12408979A JP 12408979 A JP12408979 A JP 12408979A JP S5650037 A JPS5650037 A JP S5650037A
Authority
JP
Japan
Prior art keywords
electron beam
tube
array
axis
beam passing
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
JP12408979A
Other languages
Japanese (ja)
Other versions
JPS6155728B2 (en
Inventor
Kunio Shimada
Kuniharu Osakabe
Kyohei Fukuda
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 JP12408979A priority Critical patent/JPS5650037A/en
Publication of JPS5650037A publication Critical patent/JPS5650037A/en
Publication of JPS6155728B2 publication Critical patent/JPS6155728B2/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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • H01J29/566—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses for correcting aberration

Abstract

PURPOSE:To decrease the aberration of electron beam which is not on the axis of the tube by arranging the array of three pairs of cathodes and the control electrode system, in turning by a fixed angle around the axis of the tube, for the array of three pairs of electron beam passing-through holes which are formed on a pair of yokes. CONSTITUTION:The array of cathodes 31a and 31c which emit side beam (and the control electrode system) is arranged through the turning by an angle theta around the axis of the tube for the array of the electron beam passing-through holes formed on yokes 7 and 8. The electron beam which is on the axis of the tube is oriented to the center of an electron beam passing-through hole 81b without influenced by the deflecting action of a transverse magnetic field. While both side beams are influenced by the effect of the transverse magnetic field, and when the beam reaches the electron beam passing-through holes 81a and 81c on the cathode side yoke 8, the center of the beam accords with the center of the electron beam passing-through hole.
JP12408979A 1979-09-28 1979-09-28 Electromagnetic focusing type colour picture tube Granted JPS5650037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12408979A JPS5650037A (en) 1979-09-28 1979-09-28 Electromagnetic focusing type colour picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12408979A JPS5650037A (en) 1979-09-28 1979-09-28 Electromagnetic focusing type colour picture tube

Publications (2)

Publication Number Publication Date
JPS5650037A true JPS5650037A (en) 1981-05-07
JPS6155728B2 JPS6155728B2 (en) 1986-11-28

Family

ID=14876647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12408979A Granted JPS5650037A (en) 1979-09-28 1979-09-28 Electromagnetic focusing type colour picture tube

Country Status (1)

Country Link
JP (1) JPS5650037A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0895690A (en) * 1994-09-22 1996-04-12 Internatl Business Mach Corp <Ibm> Palm rest and information processor equipped with it

Also Published As

Publication number Publication date
JPS6155728B2 (en) 1986-11-28

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