SE8605303L - DEVICE FOR IMAGES - Google Patents

DEVICE FOR IMAGES

Info

Publication number
SE8605303L
SE8605303L SE8605303A SE8605303A SE8605303L SE 8605303 L SE8605303 L SE 8605303L SE 8605303 A SE8605303 A SE 8605303A SE 8605303 A SE8605303 A SE 8605303A SE 8605303 L SE8605303 L SE 8605303L
Authority
SE
Sweden
Prior art keywords
picture tube
coils
deflection coils
compensating
neck
Prior art date
Application number
SE8605303A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE456056B (en
SE8605303D0 (en
Inventor
Y Hamnerius
Original Assignee
Telub Ab
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 Telub Ab filed Critical Telub Ab
Priority to SE8605303A priority Critical patent/SE456056B/en
Publication of SE8605303D0 publication Critical patent/SE8605303D0/en
Priority to AU10446/88A priority patent/AU1044688A/en
Priority to PCT/SE1987/000589 priority patent/WO1988004469A1/en
Publication of SE8605303L publication Critical patent/SE8605303L/en
Publication of SE456056B publication Critical patent/SE456056B/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
    • H01J29/003—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
    • 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
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)

Abstract

Arrangement for a picture tube (6) for reducing the magnetic field strength in the area surrounding the picture tube, at which the picture tube (6) comprises a picture tube neck (5) exhibiting a number of deflection coils (3, 4) which are wound around or are alternatively enclosed by a core, in conjunction with which the arrangement also comprises a number of compensating coils (1, 2) with the ability to generate in the area (7) surrounding the picture tube magnetic fields which act contrary to the magnetic fields of the deflection coils. The invention makes it possible by simple means effectively to reduce the magnetic field strength in the area surrounding a picture tube. The compensating coils (1, 2) and the deflection coils (3, 4) are oriented essentially in a uniform fashion in space, with the compensating coils being so arranged as to extend around the deflection coils (3, 4) and the neck (5) of the picture tube.
SE8605303A 1986-12-10 1986-12-10 IMAGE DEVICE TO REDUCE THE MAGNETIC FIELD STRENGTH IN THE IMAGE OF THE IMAGE SE456056B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8605303A SE456056B (en) 1986-12-10 1986-12-10 IMAGE DEVICE TO REDUCE THE MAGNETIC FIELD STRENGTH IN THE IMAGE OF THE IMAGE
AU10446/88A AU1044688A (en) 1986-12-10 1987-12-10 Arrangement for a picture tube
PCT/SE1987/000589 WO1988004469A1 (en) 1986-12-10 1987-12-10 Arrangement for a picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8605303A SE456056B (en) 1986-12-10 1986-12-10 IMAGE DEVICE TO REDUCE THE MAGNETIC FIELD STRENGTH IN THE IMAGE OF THE IMAGE

Publications (3)

Publication Number Publication Date
SE8605303D0 SE8605303D0 (en) 1986-12-10
SE8605303L true SE8605303L (en) 1988-06-11
SE456056B SE456056B (en) 1988-08-29

Family

ID=20366577

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8605303A SE456056B (en) 1986-12-10 1986-12-10 IMAGE DEVICE TO REDUCE THE MAGNETIC FIELD STRENGTH IN THE IMAGE OF THE IMAGE

Country Status (3)

Country Link
AU (1) AU1044688A (en)
SE (1) SE456056B (en)
WO (1) WO1988004469A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223649A (en) * 1988-07-27 1990-04-11 Peter Thompson Wright A screen for an electromagnetic field
MY107095A (en) * 1989-03-13 1995-09-30 Ibm Magnetic shunt for defletion yokes.
KR930000354B1 (en) * 1989-08-31 1993-01-16 가부시끼가이샤 도시바 Cathode ray tube apparatus for reducing leakage magnetic fluxes
US5350973A (en) * 1989-08-31 1994-09-27 Kabushiki Kaisha Toshiba Cathode-ray tube apparatus having a reduced leak of magnetic fluxes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8602397A (en) * 1985-10-25 1987-05-18 Philips Nv IMAGE DISPLAY DEVICE WITH ANTI-DISORDERS.

Also Published As

Publication number Publication date
WO1988004469A1 (en) 1988-06-16
SE456056B (en) 1988-08-29
AU1044688A (en) 1988-06-30
SE8605303D0 (en) 1986-12-10

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