NO914254L - Katodestraaleroer - Google Patents

Katodestraaleroer

Info

Publication number
NO914254L
NO914254L NO91914254A NO914254A NO914254L NO 914254 L NO914254 L NO 914254L NO 91914254 A NO91914254 A NO 91914254A NO 914254 A NO914254 A NO 914254A NO 914254 L NO914254 L NO 914254L
Authority
NO
Norway
Prior art keywords
katodestraaleroer
Prior art date
Application number
NO91914254A
Other languages
English (en)
Norwegian (no)
Other versions
NO914254D0 (no
Inventor
John Beeteson
Kenneth George Smith
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 NO914254D0 publication Critical patent/NO914254D0/no
Publication of NO914254L publication Critical patent/NO914254L/no

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
    • H01J29/003—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)
NO91914254A 1990-11-27 1991-10-30 Katodestraaleroer NO914254L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90312872A EP0487796B1 (de) 1990-11-27 1990-11-27 Kathodenstrahlröhrenanzeigeapparat

Publications (2)

Publication Number Publication Date
NO914254D0 NO914254D0 (no) 1991-10-30
NO914254L true NO914254L (no) 1992-05-29

Family

ID=8205624

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91914254A NO914254L (no) 1990-11-27 1991-10-30 Katodestraaleroer

Country Status (7)

Country Link
US (2) US5563476A (de)
EP (1) EP0487796B1 (de)
JP (1) JPH0775150B2 (de)
DE (1) DE69022731T2 (de)
DK (1) DK0487796T3 (de)
FI (1) FI915348A7 (de)
NO (1) NO914254L (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487796B1 (de) * 1990-11-27 1995-09-27 International Business Machines Corporation Kathodenstrahlröhrenanzeigeapparat
US5959392A (en) * 1995-01-24 1999-09-28 International Business Machines Corporation Cancellation coil arrangement for reducing stray magnetic field emissions from CRT displays
KR100190160B1 (ko) * 1995-10-27 1999-06-01 윤종용 디스플레이 기기의 전계 차폐 회로
US5986406A (en) * 1997-02-15 1999-11-16 Lg Electronics Inc. Electric field noise eliminating circuit in a video display appliance
EP1040505A2 (de) * 1998-07-21 2000-10-04 Koninklijke Philips Electronics N.V. Kathodenstrahlröhre mit lufter versehener ablenkeinheit
US6741296B1 (en) * 2000-01-04 2004-05-25 International Business Machines Corporation Multi-hemisphere color CRT

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879633A (en) * 1963-12-19 1975-04-22 Rca Corp Television degaussing system with saddle-type coils adjacent CRT cone
JPS59186490A (ja) * 1983-04-08 1984-10-23 Hitachi Ltd コンバ−ゼンス装置
US4581563A (en) * 1983-11-28 1986-04-08 International Business Machines Corporation Variable format controls CRT raster
DE3440024A1 (de) * 1984-11-02 1986-05-07 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltungsanordnung fuer die vertikalablenkung von elektronenstrahlen in fernsehbildroehren
KR900001503B1 (ko) * 1985-09-13 1990-03-12 미쓰비시전기 주식회사 불요복사 방지장치
SE459054C (sv) * 1986-03-07 1992-08-17 Philips Norden Ab Foerfarande foer reducering av magnetiskt laeckfaelt samt anordning foer genomfoerande av foerfarandet
US4853588A (en) * 1986-09-05 1989-08-01 Denki Onkyo Co., Ltd. Deflection yoke apparatus with means for reducing unwanted radiation
JPH0163057U (de) * 1987-10-17 1989-04-24
US4864192A (en) * 1987-11-09 1989-09-05 General Electric Company CRT magnetic field compensation
JPH0186047U (de) * 1987-11-27 1989-06-07
EP0327161B1 (de) * 1988-02-01 1994-01-05 Koninklijke Philips Electronics N.V. Bildwiedergabeanordnung mit einem Ausgleichsspulenbestückten, magnetisierbaren Kernmittel
JPH02148543A (ja) * 1988-11-29 1990-06-07 Mitsubishi Electric Corp 陰極線管デイスプレイ装置
JPH02223138A (ja) * 1989-02-23 1990-09-05 Tdk Corp 偏向ヨークの漏洩磁束低減装置
EP0487796B1 (de) * 1990-11-27 1995-09-27 International Business Machines Corporation Kathodenstrahlröhrenanzeigeapparat

Also Published As

Publication number Publication date
FI915348A7 (fi) 1992-05-28
DK0487796T3 (da) 1995-12-18
US5563476A (en) 1996-10-08
DE69022731T2 (de) 1996-05-02
NO914254D0 (no) 1991-10-30
EP0487796B1 (de) 1995-09-27
DE69022731D1 (de) 1995-11-02
JPH06103923A (ja) 1994-04-15
JPH0775150B2 (ja) 1995-08-09
US5734234A (en) 1998-03-31
EP0487796A1 (de) 1992-06-03
FI915348A0 (fi) 1991-11-13

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