NO921821L - Metode og apparat for aa redusere utstraaling av elektriskefelt fra katodestraaleroer - Google Patents

Metode og apparat for aa redusere utstraaling av elektriskefelt fra katodestraaleroer

Info

Publication number
NO921821L
NO921821L NO92921821A NO921821A NO921821L NO 921821 L NO921821 L NO 921821L NO 92921821 A NO92921821 A NO 92921821A NO 921821 A NO921821 A NO 921821A NO 921821 L NO921821 L NO 921821L
Authority
NO
Norway
Prior art keywords
picture tube
cathodry
electric field
electrode
reduce emissions
Prior art date
Application number
NO92921821A
Other languages
English (en)
Norwegian (no)
Other versions
NO921821D0 (no
Inventor
Tor Moen
Original Assignee
Tandberg Data
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 Tandberg Data filed Critical Tandberg Data
Publication of NO921821D0 publication Critical patent/NO921821D0/no
Publication of NO921821L publication Critical patent/NO921821L/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
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/98—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • 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)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Insulators (AREA)
NO92921821A 1991-07-16 1992-05-08 Metode og apparat for aa redusere utstraaling av elektriskefelt fra katodestraaleroer NO921821L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4123565A DE4123565C1 (xx) 1991-07-16 1991-07-16

Publications (2)

Publication Number Publication Date
NO921821D0 NO921821D0 (no) 1992-05-08
NO921821L true NO921821L (no) 1993-01-18

Family

ID=6436280

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92921821A NO921821L (no) 1991-07-16 1992-05-08 Metode og apparat for aa redusere utstraaling av elektriskefelt fra katodestraaleroer

Country Status (6)

Country Link
US (1) US5243262A (xx)
EP (1) EP0523322B1 (xx)
JP (1) JPH05242821A (xx)
DE (2) DE4123565C1 (xx)
FI (1) FI922163A (xx)
NO (1) NO921821L (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469456B (sv) * 1991-11-22 1993-07-05 Nokia Data Ab Foerfarande och anordning i en bildskaermsenhet foer att reducera elektriska vaexelfaelt i enhetens omgivning
JPH05244540A (ja) * 1991-12-14 1993-09-21 Sony Corp モニタ装置
DE4203828C2 (de) * 1992-02-10 1996-03-14 Siemens Nixdorf Inf Syst Bildschirmgerät
EP0568783B1 (en) * 1992-05-08 1998-09-23 Hitachi, Ltd. Cathode-ray tube apparatus and yoke
JP3180461B2 (ja) * 1992-09-09 2001-06-25 三菱電機株式会社 陰極線管装置
US5326978A (en) * 1992-12-17 1994-07-05 Intevac, Inc. Focused electron-bombarded detector
JP3277601B2 (ja) * 1993-03-31 2002-04-22 ソニー株式会社 Ｃｒｔディスプレイの漏洩電界相殺装置
GB2279216A (en) * 1993-06-15 1994-12-21 Ibm Cathode ray tube display with cancellation of electric field emission
GB2283646A (en) * 1993-10-30 1995-05-10 Ibm Reducing electric field emission from a CRT display
GB2293299A (en) * 1994-09-15 1996-03-20 Ibm Electric field emission reduction system
US5742128A (en) * 1995-02-02 1998-04-21 Orwin Associates, Inc. Apparatus for mitigating the effects of ambient magnetic fields on the operation of a CRT
JPH08227666A (ja) * 1995-02-20 1996-09-03 Matsushita Electric Ind Co Ltd Ｃｒｔディスプレイの漏洩電界低減装置
KR100190160B1 (ko) * 1995-10-27 1999-06-01 윤종용 디스플레이 기기의 전계 차폐 회로
US5818171A (en) * 1996-01-16 1998-10-06 Samsung Electronics Co., Ltd. Device for removing electric field of display
EP0785566A1 (en) * 1996-01-19 1997-07-23 Capetronic (Kaohsiung) Corp. Low varying electric field and radiation CRT
JPH09233355A (ja) * 1996-02-27 1997-09-05 Totoku Electric Co Ltd 不要電界の低減方法
MX9801232A (es) * 1997-02-15 1998-11-30 Lg Electronics Inc Circuito para eliminar ruido del campo electrico de radiacion en aparato de video.
FI119344B (fi) 1999-02-05 2008-10-15 It Per Lo Sviluppo Dell Elettr Menetelmä näyttöpäätteen ympäristöönsä aiheuttaman sähkökentän pienentämiseksi ja näyttöpääte

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163772A1 (de) * 1971-12-22 1973-07-05 Licentia Gmbh Schaltung zur verminderung der stoerstrahlung eines elektrischen leiters, insbesondere in einem fernsehempfaenger
US4207493A (en) * 1978-09-26 1980-06-10 Rca Corporation Cathode ray tube arc-over protection
JPS60218693A (ja) * 1984-04-13 1985-11-01 三菱電機株式会社 デイスプレイ装置
US4636911A (en) * 1984-11-30 1987-01-13 Rca Corporation Resonant degaussing for a video display system
SE459054C (sv) * 1986-03-07 1992-08-17 Philips Norden Ab Foerfarande foer reducering av magnetiskt laeckfaelt samt anordning foer genomfoerande av foerfarandet
FI90598C (fi) * 1991-02-07 1994-02-25 Nokia Display Products Oy Menetelmä ja kytkentä katodisädeputken aiheuttaman haitallisen säteilyn pienentämiseksi
US5260626A (en) * 1991-02-20 1993-11-09 Nanao Corporation Apparatus for suppressing field radiation from display device
US5151635A (en) * 1991-06-20 1992-09-29 Apple Computer, Inc. Apparatus and method for reducing the magnitude of time varying electric fields in CRT displays

Also Published As

Publication number Publication date
EP0523322A1 (de) 1993-01-20
EP0523322B1 (de) 1996-05-08
DE4123565C1 (xx) 1992-09-17
FI922163A (fi) 1993-01-17
DE59206213D1 (de) 1996-06-13
FI922163A0 (fi) 1992-05-13
US5243262A (en) 1993-09-07
NO921821D0 (no) 1992-05-08
JPH05242821A (ja) 1993-09-21

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