KR910001849A - Cathode ray tube device that reduces the magnetic field leaking to the outside - Google Patents

Cathode ray tube device that reduces the magnetic field leaking to the outside

Info

Publication number
KR910001849A
KR910001849A KR1019900008588A KR900008588A KR910001849A KR 910001849 A KR910001849 A KR 910001849A KR 1019900008588 A KR1019900008588 A KR 1019900008588A KR 900008588 A KR900008588 A KR 900008588A KR 910001849 A KR910001849 A KR 910001849A
Authority
KR
South Korea
Prior art keywords
reduces
outside
magnetic field
ray tube
cathode ray
Prior art date
Application number
KR1019900008588A
Other languages
Korean (ko)
Other versions
KR920010657B1 (en
Inventor
마시히로 요꼬다
히데오 모리
기요시 오야마
Original Assignee
가부시끼가이샤 도시바
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 가부시끼가이샤 도시바 filed Critical 가부시끼가이샤 도시바
Publication of KR910001849A publication Critical patent/KR910001849A/en
Application granted granted Critical
Publication of KR920010657B1 publication Critical patent/KR920010657B1/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • 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)
KR1019900008588A 1989-06-09 1990-06-08 Cathod ray tube lessening leakage magnetic field KR920010657B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP89-146979 1989-06-09
JP1146979A JPH0752631B2 (en) 1989-06-09 1989-06-09 Cathode ray tube device

Publications (2)

Publication Number Publication Date
KR910001849A true KR910001849A (en) 1991-01-31
KR920010657B1 KR920010657B1 (en) 1992-12-12

Family

ID=15419885

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900008588A KR920010657B1 (en) 1989-06-09 1990-06-08 Cathod ray tube lessening leakage magnetic field

Country Status (4)

Country Link
EP (1) EP0401831B1 (en)
JP (1) JPH0752631B2 (en)
KR (1) KR920010657B1 (en)
DE (1) DE69028146T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959392A (en) * 1995-01-24 1999-09-28 International Business Machines Corporation Cancellation coil arrangement for reducing stray magnetic field emissions from CRT displays
GB2297423A (en) * 1995-01-24 1996-07-31 Ibm CRT display apparatus with reduced stray magnetic fields

Family Cites Families (4)

* 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
SE452077C (en) * 1986-03-04 1992-12-07 Blixt Autovision DEVICE TO REDUCE UNWANTED LEAKFIELD ACTIVITIES IN FRONT OF CATHEDRAL TUBE SCREEN
JPS6312148U (en) * 1986-07-10 1988-01-26
NL8701109A (en) * 1987-05-11 1988-12-01 Philips Nv IMAGE DISPLAY DEVICE WITH SPRAY COMPENSATION COMPONENTS.

Also Published As

Publication number Publication date
DE69028146T2 (en) 1997-02-20
JPH0311531A (en) 1991-01-18
EP0401831A1 (en) 1990-12-12
DE69028146D1 (en) 1996-09-26
EP0401831B1 (en) 1996-08-21
KR920010657B1 (en) 1992-12-12
JPH0752631B2 (en) 1995-06-05

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20061201

Year of fee payment: 15

LAPS Lapse due to unpaid annual fee