[go: up one dir, main page]

NO880765L - PICTURE DISPLAY DEVICE WITH DEVICE FOR COMPENSATION OF LINE DISTRIBUTION. - Google Patents

PICTURE DISPLAY DEVICE WITH DEVICE FOR COMPENSATION OF LINE DISTRIBUTION.

Info

Publication number
NO880765L
NO880765L NO880765A NO880765A NO880765L NO 880765 L NO880765 L NO 880765L NO 880765 A NO880765 A NO 880765A NO 880765 A NO880765 A NO 880765A NO 880765 L NO880765 L NO 880765L
Authority
NO
Norway
Prior art keywords
display device
picture display
coils
coil
deflection coil
Prior art date
Application number
NO880765A
Other languages
Norwegian (no)
Other versions
NO880765D0 (en
Inventor
Albertus Aemilius S Sluyterman
Gerrit Bosch
Franciscus Maria Pet Doomernik
Adriaan Jacob Groothoff
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of NO880765D0 publication Critical patent/NO880765D0/en
Publication of NO880765L publication Critical patent/NO880765L/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)
  • Closed-Circuit Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

Picture display device having a display tube (3) and a deflection unit (9) comprising a field deflection coil and a line deflection coil (11). To comply with a predetermined interference radiation standard, the picture display device comprises a first set of (horizontal) interference suppression coils 18, 19 arranged symmetrically relative to the plane of symmetry of the line deflection coil and a further set of (vertical) interference suppression coils 18a, 19a arranged at right angles to the plane of symmetry of the line deflection coil, which coils are oriented in such manner and in operation are energizable in such manner that, measured at a predetermined distance from the picture display device, at least the strength of the local magnetic dipole field is below a desired standard. Each coil of the further set preferably comprises at least two sub-coils arranged parallel to each other at a given distance in order to reduce the energy content of the coil system.
NO880765A 1987-02-24 1988-02-22 PICTURE DISPLAY DEVICE WITH DEVICE FOR COMPENSATION OF LINE DISTRIBUTION. NO880765L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8700449A NL8700449A (en) 1987-02-24 1987-02-24 IMAGE DISPLAY DEVICE WITH MEANS FOR COMPENSATING LINE SPRAY FIELDS.

Publications (2)

Publication Number Publication Date
NO880765D0 NO880765D0 (en) 1988-02-22
NO880765L true NO880765L (en) 1988-08-25

Family

ID=19849617

Family Applications (1)

Application Number Title Priority Date Filing Date
NO880765A NO880765L (en) 1987-02-24 1988-02-22 PICTURE DISPLAY DEVICE WITH DEVICE FOR COMPENSATION OF LINE DISTRIBUTION.

Country Status (7)

Country Link
EP (1) EP0281184B1 (en)
JP (1) JP2677585B2 (en)
KR (1) KR960000348B1 (en)
AT (1) ATE108947T1 (en)
DE (1) DE3850687T2 (en)
NL (1) NL8700449A (en)
NO (1) NO880765L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646142Y2 (en) * 1989-04-28 1994-11-24 日本ビクター株式会社 Leakage magnetic flux reduction device
WO1996023315A1 (en) * 1995-01-24 1996-08-01 International Business Machines Corporation Cathode ray tube display apparatus with reduced stray magnetic fields
EP1790981A1 (en) 2005-11-28 2007-05-30 Siemens Aktiengesellschaft Apparatus and method for maintenance of a device in a flow channel
KR20190064899A (en) 2017-12-01 2019-06-11 주식회사 에이치케이 Apparatus for changing working table

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017331A1 (en) * 1980-05-06 1981-11-12 Siemens AG, 1000 Berlin und 8000 München ARRANGEMENT FOR COMPENSATING FOR MAGNETIC FOREIGN INTERFERENCE ON COLOR TV TELEVISIONS
JPS60218693A (en) * 1984-04-13 1985-11-01 三菱電機株式会社 Display unit
DK29385A (en) * 1984-10-09 1986-04-10 Viggo Berthelsen PROCEDURE AND APPARATUS FOR ELIMINATING THE POWER FROM A MAGNET FIELD AND PROTECTION AGAINST THE SAME
NL8602397A (en) * 1985-10-25 1987-05-18 Philips Nv IMAGE DISPLAY DEVICE WITH ANTI-DISORDERS.
SE452077C (en) * 1986-03-04 1992-12-07 Blixt Autovision DEVICE TO REDUCE UNWANTED LEAKFIELD ACTIVITIES IN FRONT OF CATHEDRAL TUBE SCREEN
SE459054C (en) * 1986-03-07 1992-08-17 Philips Norden Ab PROCEDURE FOR REDUCING MAGNETIC LEAKFIELD AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
IN167955B (en) * 1986-03-27 1991-01-12 Nokia Data Systems
JPS62268046A (en) * 1986-05-14 1987-11-20 Mitsubishi Electric Corp deflection yoke

Also Published As

Publication number Publication date
KR960000348B1 (en) 1996-01-05
JPS63227186A (en) 1988-09-21
JP2677585B2 (en) 1997-11-17
KR880010464A (en) 1988-10-08
NO880765D0 (en) 1988-02-22
DE3850687D1 (en) 1994-08-25
ATE108947T1 (en) 1994-08-15
DE3850687T2 (en) 1995-02-16
EP0281184B1 (en) 1994-07-20
EP0281184A1 (en) 1988-09-07
NL8700449A (en) 1988-09-16

Similar Documents

Publication Publication Date Title
SG32561G (en) Picture display device with interference suppression means
DE69025056D1 (en) Deflection yoke with overlapping deflection coils
NO880765L (en) PICTURE DISPLAY DEVICE WITH DEVICE FOR COMPENSATION OF LINE DISTRIBUTION.
GB1509914A (en) Detector systems for electromagnetic surveying
KR900005806A (en) Magnetic compensator device
SE8600991L (en) DEVICE FOR REDUCING MAGNETIC FIELD STRENGTH NEAR APPLIANCES WITH CATHODIC RADIATORS WITH MAGNETIC DEFENSE
ATE79980T1 (en) IMAGE REPRESENTATION DEVICE WITH MEANS FOR COMPENSATION OF THE STREAMING FIELDS.
JPS6448357A (en) Deflection yoke
GB1385747A (en) Deflection yoke for use with in-line electron guns
MY106519A (en) A deflection system with a controlled beam spot.
GB1265388A (en)
MY109034A (en) Deflection device for use in a color cathode-ray tube
US5208510A (en) CRT magnetic field cancelling device
EP0349098A1 (en) Cathode ray tube display monitor with stray magnetic field compensation
JPS6445046A (en) Cathode ray tube display
SG66789G (en) Transforming method of a deflection unit permitting its use in autoconvergent imaging tubes of different dimensions,and deflection unit so obtained
SE8605303D0 (en) DEVICE FOR IMAGES
US5481808A (en) Vehicle orientation sensor and method with magnetic stabilization
SU1718710A3 (en) Device for electromagnetic field compensation
GB2217959A (en) Reducing stray magnetic fields from display devices
WO1988006346A1 (en) Device for limiting the magnetic emission in cathode ray tube monitors
JP2930631B2 (en) Deflection yoke
RU1770932C (en) Induction well-logging probe
SU1459516A1 (en) SUPERCONDUCTING MEASURING TRANSFORMER MAGNETIC FLOW
GB1322305A (en) Magnetic convergence device for use in an in-line type colour cathode ray tube