IE63796B1 - Magnetic shunt for deflection yokes - Google Patents

Magnetic shunt for deflection yokes

Info

Publication number
IE63796B1
IE63796B1 IE245988A IE245988A IE63796B1 IE 63796 B1 IE63796 B1 IE 63796B1 IE 245988 A IE245988 A IE 245988A IE 245988 A IE245988 A IE 245988A IE 63796 B1 IE63796 B1 IE 63796B1
Authority
IE
Ireland
Prior art keywords
ring
screen
coil
field
magnetic field
Prior art date
Application number
IE245988A
Other languages
English (en)
Other versions
IE882459L (en
Inventor
Joseph Francis Hevesi
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IE882459L publication Critical patent/IE882459L/en
Publication of IE63796B1 publication Critical patent/IE63796B1/en

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
    • 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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0015—Preventing or cancelling fields leaving the enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Soft Magnetic Materials (AREA)
  • Details Of Television Scanning (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
IE245988A 1987-08-13 1988-08-12 Magnetic shunt for deflection yokes IE63796B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8494987A 1987-08-13 1987-08-13

Publications (2)

Publication Number Publication Date
IE882459L IE882459L (en) 1989-02-13
IE63796B1 true IE63796B1 (en) 1995-06-14

Family

ID=22188219

Family Applications (1)

Application Number Title Priority Date Filing Date
IE245988A IE63796B1 (en) 1987-08-13 1988-08-12 Magnetic shunt for deflection yokes

Country Status (14)

Country Link
EP (1) EP0302995B1 (pt)
JP (1) JP2645572B2 (pt)
KR (1) KR930000388B1 (pt)
CN (1) CN1021172C (pt)
AU (1) AU600158B2 (pt)
BR (1) BR8802943A (pt)
CA (1) CA1306281C (pt)
DE (1) DE3889997T2 (pt)
GB (1) GB2208034A (pt)
HK (1) HK119794A (pt)
IE (1) IE63796B1 (pt)
IN (1) IN175123B (pt)
MX (1) MX169727B (pt)
NZ (1) NZ225468A (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY107095A (en) * 1989-03-13 1995-09-30 Ibm Magnetic shunt for defletion yokes.
CN1040934C (zh) * 1991-07-18 1998-11-25 东芝株式会社 阴极射线管图像显示装置
KR950011706B1 (ko) * 1992-11-10 1995-10-07 삼성전관주식회사 투사형 수상관용 편향요크 및 포커스 마그네트의 고정구조

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB743426A (en) * 1953-04-29 1956-01-18 Gen Electric Co Ltd Improvements in or relating to arrangements including cathode ray tubes
NL262281A (pt) * 1960-03-17
US3576395A (en) * 1969-05-21 1971-04-27 Sylvania Electric Prod Integral support and magentic shielding means for cathode-ray
JPS50114230U (pt) * 1974-02-28 1975-09-18
NL7609374A (nl) * 1976-08-24 1978-02-28 Philips Nv Inrichting voor het weergeven van televisie- beelden, afbuigspoelenstelsel voor een derge- lijke inrichting en beeldbuis voorzien van een dergelijk afbuigspoelenstelsel.
DE3162156D1 (en) * 1980-04-17 1984-03-15 Tokyo Shibaura Electric Co Color picture tube provided with an inner magnetic shield
US4547697A (en) * 1983-07-22 1985-10-15 North American Philips Consumer Electronics Corp. CRT Shunt retaining means
JPS60253135A (ja) * 1984-05-28 1985-12-13 Mitsubishi Electric Corp デイスプレイ装置
JPS60189947U (ja) * 1984-05-28 1985-12-16 三菱電機株式会社 電磁偏向ヨ−ク
DK29385A (da) * 1984-10-09 1986-04-10 Viggo Berthelsen Fremgangsmaade og indretning til eliminering af paavirkningen fra et magnetfelt og til beskyttelse mod samme
DE3439808A1 (de) * 1984-10-31 1986-04-30 Standard Elektrik Lorenz Ag, 7000 Stuttgart Ablenksystem fuer farbbildroehren
GB2177539B (en) * 1985-05-20 1989-07-05 Mitsubishi Electric Corp Magnetic shielding system in color television receiver
NL8602397A (nl) * 1985-10-25 1987-05-18 Philips Nv Beeldweergeefinrichting met ontstoringsmiddelen.
DE3704648C3 (de) * 1986-02-17 1997-09-18 Murata Manufacturing Co Ablenkjocheinheit mit Hilfsspulen zur Verringerung unerwünschter Abstrahlung
JP2611196B2 (ja) * 1986-02-20 1997-05-21 日本ビクター株式会社 Ｃｒｔ画像表示装置

Also Published As

Publication number Publication date
GB2208034A (en) 1989-02-15
EP0302995A1 (en) 1989-02-15
HK119794A (en) 1994-11-11
GB8807138D0 (en) 1988-04-27
JPS6445046A (en) 1989-02-17
CN1021172C (zh) 1993-06-09
CA1306281C (en) 1992-08-11
KR890004381A (ko) 1989-04-21
BR8802943A (pt) 1989-02-21
KR930000388B1 (ko) 1993-01-16
EP0302995B1 (en) 1994-06-08
NZ225468A (en) 1990-11-27
AU600158B2 (en) 1990-08-02
MX169727B (es) 1993-07-21
IN175123B (pt) 1995-04-22
AU2055588A (en) 1989-02-16
CN1031297A (zh) 1989-02-22
IE882459L (en) 1989-02-13
DE3889997D1 (de) 1994-07-14
DE3889997T2 (de) 1994-12-01
JP2645572B2 (ja) 1997-08-25

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Legal Events

Date Code Title Description
MM4A Patent lapsed