GB2187883B - Deflection yoke apparatus with auxiliary coils for reducing unwanted radiation - Google Patents

Deflection yoke apparatus with auxiliary coils for reducing unwanted radiation

Info

Publication number
GB2187883B
GB2187883B GB8703659A GB8703659A GB2187883B GB 2187883 B GB2187883 B GB 2187883B GB 8703659 A GB8703659 A GB 8703659A GB 8703659 A GB8703659 A GB 8703659A GB 2187883 B GB2187883 B GB 2187883B
Authority
GB
United Kingdom
Prior art keywords
deflection yoke
unwanted radiation
auxiliary coils
reducing unwanted
yoke apparatus
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 - Lifetime
Application number
GB8703659A
Other versions
GB2187883A (en
GB8703659D0 (en
Inventor
Shinji Ohtsu
Yabushita Haruyasu
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.)
Denki Onkyo Co Ltd
Original Assignee
Denki Onkyo Co Ltd
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
Priority claimed from JP8633686U external-priority patent/JPS62198653U/ja
Application filed by Denki Onkyo Co Ltd filed Critical Denki Onkyo Co Ltd
Publication of GB8703659D0 publication Critical patent/GB8703659D0/en
Publication of GB2187883A publication Critical patent/GB2187883A/en
Application granted granted Critical
Publication of GB2187883B publication Critical patent/GB2187883B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/003—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
    • H01J29/46—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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/766—Deflecting by magnetic fields only using a combination of saddle coils and toroidal windings
    • 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
GB8703659A 1986-02-17 1987-02-17 Deflection yoke apparatus with auxiliary coils for reducing unwanted radiation Expired - Lifetime GB2187883B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP3244186 1986-02-17
JP3622586 1986-02-20
JP5561486 1986-03-13
JP6366086 1986-03-19
JP8633686U JPS62198653U (en) 1986-06-06 1986-06-06

Publications (3)

Publication Number Publication Date
GB8703659D0 GB8703659D0 (en) 1987-03-25
GB2187883A GB2187883A (en) 1987-09-16
GB2187883B true GB2187883B (en) 1990-04-11

Family

ID=27521414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8703659A Expired - Lifetime GB2187883B (en) 1986-02-17 1987-02-17 Deflection yoke apparatus with auxiliary coils for reducing unwanted radiation

Country Status (2)

Country Link
DE (1) DE3704648C3 (en)
GB (1) GB2187883B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0485559U (en) * 1990-11-29 1992-07-24
GB2208034A (en) * 1987-08-13 1989-02-15 Ibm Reducing magnetic radiation in front of a cathode ray tube screen
JP2575394Y2 (en) * 1992-12-30 1998-06-25 株式会社村田製作所 Deflection yoke device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900001503B1 (en) * 1985-09-13 1990-03-12 미쓰비시전기 주식회사 Radiation suppression device

Also Published As

Publication number Publication date
GB2187883A (en) 1987-09-16
DE3704648C2 (en) 1992-09-03
DE3704648A1 (en) 1987-08-20
GB8703659D0 (en) 1987-03-25
DE3704648C3 (en) 1997-09-18

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732D Request for correction of an error in the register (sect. 32(2)(d)/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20070216