JPS57172637A - Color picture tube - Google Patents

Color picture tube

Info

Publication number
JPS57172637A
JPS57172637A JP19002981A JP19002981A JPS57172637A JP S57172637 A JPS57172637 A JP S57172637A JP 19002981 A JP19002981 A JP 19002981A JP 19002981 A JP19002981 A JP 19002981A JP S57172637 A JPS57172637 A JP S57172637A
Authority
JP
Japan
Prior art keywords
pieces
electron
passing
magnetic pieces
magnetic
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
JP19002981A
Other languages
Japanese (ja)
Other versions
JPS5837655B2 (en
Inventor
Akira Sato
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
Matsushita Electric Industrial 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 Matsushita Electronics Corp, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electronics Corp
Priority to JP56190029A priority Critical patent/JPS5837655B2/en
Publication of JPS57172637A publication Critical patent/JPS57172637A/en
Publication of JPS5837655B2 publication Critical patent/JPS5837655B2/en
Expired 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
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices

Abstract

PURPOSE:To prevent any raster shift without causing any deformation, which might be caused when a pair of magnetic pieces are welded, by making the said magnetic pieces to consist of magnetic pieces surrounding side electron-beam- passing holes, and rising magnetic pieces provided in the upper and the lower parts of a central electron-beam-passing hole and rising in the direction of passing beams. CONSTITUTION:The outlet of an electron gun is provided with a pair of magnetic pieces 28. The pieces 28 consist of peripheral magnetic pieces 29, which completely surround side electron-beam-passing holes (B) and (R) and have the same center as the holes (B) and (R), and rising magnetic pieces 30, which rise facing one another parallel in the direction of passing electron-beams and are provided in the upper and the lower parts of a central electron-beam-passing hole (G). For instance, the width and the height of the pieces 30 are adjusted to 2.0mm. and 3mm. respectively, and a distance 31 between the pieces 30 is adjusted to 2mm.. In addition, as the magnetic material, an alloy consisting of 50% Fe and 50% Ni and having a thickness of 0.25mm. is used. As a result, an improved picture without any raster shift can be obtained.
JP56190029A 1981-11-26 1981-11-26 color picture tube Expired JPS5837655B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56190029A JPS5837655B2 (en) 1981-11-26 1981-11-26 color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56190029A JPS5837655B2 (en) 1981-11-26 1981-11-26 color picture tube

Publications (2)

Publication Number Publication Date
JPS57172637A true JPS57172637A (en) 1982-10-23
JPS5837655B2 JPS5837655B2 (en) 1983-08-17

Family

ID=16251180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56190029A Expired JPS5837655B2 (en) 1981-11-26 1981-11-26 color picture tube

Country Status (1)

Country Link
JP (1) JPS5837655B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226448A (en) * 1983-06-08 1984-12-19 Toshiba Corp Color picture tube
US4748372A (en) * 1984-07-20 1988-05-31 U.S. Philips Corporation Color display tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141220A (en) * 1974-04-30 1975-11-13
JPS52116021A (en) * 1976-03-26 1977-09-29 Hitachi Ltd Color receiving tube with deflection magnetic field control elements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141220A (en) * 1974-04-30 1975-11-13
JPS52116021A (en) * 1976-03-26 1977-09-29 Hitachi Ltd Color receiving tube with deflection magnetic field control elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226448A (en) * 1983-06-08 1984-12-19 Toshiba Corp Color picture tube
JPH053102B2 (en) * 1983-06-08 1993-01-14 Tokyo Shibaura Electric Co
US4748372A (en) * 1984-07-20 1988-05-31 U.S. Philips Corporation Color display tube

Also Published As

Publication number Publication date
JPS5837655B2 (en) 1983-08-17

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