JPS57131187A - Device for color picture tube - Google Patents

Device for color picture tube

Info

Publication number
JPS57131187A
JPS57131187A JP1709181A JP1709181A JPS57131187A JP S57131187 A JPS57131187 A JP S57131187A JP 1709181 A JP1709181 A JP 1709181A JP 1709181 A JP1709181 A JP 1709181A JP S57131187 A JPS57131187 A JP S57131187A
Authority
JP
Japan
Prior art keywords
poles
convergence
picture tube
coil
color picture
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
JP1709181A
Other languages
Japanese (ja)
Other versions
JPH0318296B2 (en
Inventor
Koji Nakamura
Jutaro Yanagida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1709181A priority Critical patent/JPS57131187A/en
Publication of JPS57131187A publication Critical patent/JPS57131187A/en
Publication of JPH0318296B2 publication Critical patent/JPH0318296B2/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
    • H01J29/70—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
    • H01J29/705—Dynamic convergence systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/56—Correction of beam optics
    • H01J2229/563—Aberrations by type
    • H01J2229/5637—Colour purity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/56—Correction of beam optics
    • H01J2229/568—Correction of beam optics using supplementary correction devices
    • H01J2229/5681—Correction of beam optics using supplementary correction devices magnetic
    • H01J2229/5687—Auxiliary coils

Landscapes

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

Abstract

PURPOSE:To obtain a color picture tube device which is small in a difference of deflecting width, etc., and high in its image resolution, by providing a convergence device for magnetic fields of 4 poles and 6 poles by coil winding, on the neck part of an inline array color image receiving tube, and constituting its coil holding frame of a nonmagnetic substance. CONSTITUTION:Between a deflecting yoke 7 of an inline electron gun color picture tube, and a convergence and color purity correcting device 9 consisting of a permanent magnet, a dynamic convergence device 10 is provided. As shown in the figures A, B, it is constituted, for instance, of a coil for generating magnetic fields of 4 poles and 6 poles, and is capable of converging any misconvergence by freely moving electron beams of both sides. Also, each coil is wound round a core 12 installed to a frame 13, and being different from a conventional one, the frame 13 is constituted of a nonmagnetic substance such as aluminum. In this way, it is possible to obtain a color picture tube device having a high image resolution, which is not only satisfactory in raster distortion but also suitable for display of a character, etc. by raising the sensitivity of convergence, without expanding a horizontal-vertical deflection center difference of a landing characteristic.
JP1709181A 1981-02-06 1981-02-06 Device for color picture tube Granted JPS57131187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1709181A JPS57131187A (en) 1981-02-06 1981-02-06 Device for color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1709181A JPS57131187A (en) 1981-02-06 1981-02-06 Device for color picture tube

Publications (2)

Publication Number Publication Date
JPS57131187A true JPS57131187A (en) 1982-08-13
JPH0318296B2 JPH0318296B2 (en) 1991-03-12

Family

ID=11934312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1709181A Granted JPS57131187A (en) 1981-02-06 1981-02-06 Device for color picture tube

Country Status (1)

Country Link
JP (1) JPS57131187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823149A (en) * 1981-08-03 1983-02-10 Hitachi Ltd In-line-type color picture tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114223A (en) * 1974-07-26 1976-02-04 Hitachi Ltd SEIKONBAAZENSUSOCHI
JPS5433389U (en) * 1977-08-09 1979-03-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114223A (en) * 1974-07-26 1976-02-04 Hitachi Ltd SEIKONBAAZENSUSOCHI
JPS5433389U (en) * 1977-08-09 1979-03-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823149A (en) * 1981-08-03 1983-02-10 Hitachi Ltd In-line-type color picture tube
JPH0217904B2 (en) * 1981-08-03 1990-04-23 Hitachi Ltd

Also Published As

Publication number Publication date
JPH0318296B2 (en) 1991-03-12

Similar Documents

Publication Publication Date Title
US4963789A (en) Method and apparatus for dynamic magnetic field neutralization
GB1391798A (en) Magnetic beam adjusting arrangements
US4257023A (en) Deflecting device for cathode-ray tube
CA1124304A (en) Deflection yoke with a magnet for reducing sensitivity of convergence to yoke position
ES8204260A1 (en) Color TV display system
SU1271386A3 (en) Magetizing device for colour purity magnet of colour kinescope with coplanar arrangement of three electron guns
US3002120A (en) Beam convergence apparatus for tri-color kinescope
DE69011563T2 (en) Image display device.
CA1093625A (en) Apparatus producing static eight-pole magnetic field for correcting raster distortion in a television picture tube
IL40893A (en) Deflection yoke for use with in-line electron guns
US4654616A (en) Blue bow correction for CRT raster
JPS57131187A (en) Device for color picture tube
KR900005805A (en) Image display system
KR930010668B1 (en) Deflection apparatus
JPS53148230A (en) Inline-type color picture tube device
GB1254064A (en) Electron beam correction apparatus for a color picture tube
US2880340A (en) Color television receiver
US3356879A (en) Beam positioning device for varying the effective origin of cathode-ray tube electron beam
US3590302A (en) Temperature compensated convergence coil for cathode ray tubes
EP0270153B1 (en) Picture display device
IL41177A (en) A color image display system
US3192452A (en) Magnetic beam positioning device
JPS637419B2 (en)
JP3041950B2 (en) Deflection yoke
GB1513360A (en) Deflection yoke for colour picture tube