DE3889997D1 - Magnetic shunt for deflection yokes. - Google Patents

Magnetic shunt for deflection yokes.

Info

Publication number
DE3889997D1
DE3889997D1 DE3889997T DE3889997T DE3889997D1 DE 3889997 D1 DE3889997 D1 DE 3889997D1 DE 3889997 T DE3889997 T DE 3889997T DE 3889997 T DE3889997 T DE 3889997T DE 3889997 D1 DE3889997 D1 DE 3889997D1
Authority
DE
Germany
Prior art keywords
magnetic shunt
deflection yokes
yokes
deflection
shunt
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE3889997T
Other languages
German (de)
Other versions
DE3889997T2 (en
Inventor
Joseph Francis Hevesi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3889997D1 publication Critical patent/DE3889997D1/en
Publication of DE3889997T2 publication Critical patent/DE3889997T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE3889997T 1987-08-13 1988-03-29 Magnetic shunt for deflection yokes. Expired - Fee Related DE3889997T2 (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
DE3889997D1 true DE3889997D1 (en) 1994-07-14
DE3889997T2 DE3889997T2 (en) 1994-12-01

Family

ID=22188219

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3889997T Expired - Fee Related DE3889997T2 (en) 1987-08-13 1988-03-29 Magnetic shunt for deflection yokes.

Country Status (14)

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

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 (en) * 1991-07-18 1998-11-25 东芝株式会社 Cathode ray tube device and cathode ray tube image display apparatus
KR950011706B1 (en) * 1992-11-10 1995-10-07 삼성전관주식회사 Focus magnets of d.y

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 (en) * 1960-03-17
US3576395A (en) * 1969-05-21 1971-04-27 Sylvania Electric Prod Integral support and magentic shielding means for cathode-ray
JPS50114230U (en) * 1974-02-28 1975-09-18
NL7609374A (en) * 1976-08-24 1978-02-28 Philips Nv DEVICE FOR DISPLAYING TELEVISION IMAGES, DEVICE COIL SYSTEM FOR SUCH DEVICE AND PICTURE TUBE FITTED WITH SUCH DEFLECTION COIL SYSTEM.
EP0038516B1 (en) * 1980-04-17 1984-02-08 Kabushiki Kaisha Toshiba 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
JPS60189947U (en) * 1984-05-28 1985-12-16 三菱電機株式会社 electromagnetic deflection yoke
JPS60253135A (en) * 1984-05-28 1985-12-13 Mitsubishi Electric Corp Display device
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
DE3439808A1 (en) * 1984-10-31 1986-04-30 Standard Elektrik Lorenz Ag, 7000 Stuttgart DEFLECTION SYSTEM FOR COLORED TUBES
US4943755A (en) * 1985-05-20 1990-07-24 Mitsubishi Denki Kabushiki Kaisha Magnetic shielding with constant-current coils for CRT
NL8602397A (en) * 1985-10-25 1987-05-18 Philips Nv IMAGE DISPLAY DEVICE WITH ANTI-DISORDERS.
DE3704648C3 (en) * 1986-02-17 1997-09-18 Murata Manufacturing Co Deflection yoke unit with auxiliary coils to reduce unwanted radiation
JP2611196B2 (en) * 1986-02-20 1997-05-21 日本ビクター株式会社 CRT image display device

Also Published As

Publication number Publication date
GB2208034A (en) 1989-02-15
EP0302995A1 (en) 1989-02-15
JP2645572B2 (en) 1997-08-25
AU600158B2 (en) 1990-08-02
DE3889997T2 (en) 1994-12-01
IE882459L (en) 1989-02-13
KR890004381A (en) 1989-04-21
IN175123B (en) 1995-04-22
EP0302995B1 (en) 1994-06-08
BR8802943A (en) 1989-02-21
JPS6445046A (en) 1989-02-17
MX169727B (en) 1993-07-21
NZ225468A (en) 1990-11-27
HK119794A (en) 1994-11-11
AU2055588A (en) 1989-02-16
CN1021172C (en) 1993-06-09
IE63796B1 (en) 1995-06-14
CN1031297A (en) 1989-02-22
KR930000388B1 (en) 1993-01-16
CA1306281C (en) 1992-08-11
GB8807138D0 (en) 1988-04-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee