CA977406A - Degaussing device for colour cathode ray tubes - Google Patents

Degaussing device for colour cathode ray tubes

Info

Publication number
CA977406A
CA977406A CA168,642A CA168642A CA977406A CA 977406 A CA977406 A CA 977406A CA 168642 A CA168642 A CA 168642A CA 977406 A CA977406 A CA 977406A
Authority
CA
Canada
Prior art keywords
cathode ray
ray tubes
colour cathode
degaussing device
degaussing
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
Application number
CA168,642A
Other languages
English (en)
Other versions
CA168642S (en
Inventor
Yoshiichi Matsushima
Toshiyuki Abe
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 JP3755672A external-priority patent/JPS5644626B2/ja
Priority claimed from JP3756272A external-priority patent/JPS48104430A/ja
Priority claimed from JP6005572A external-priority patent/JPS4922037A/ja
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Application granted granted Critical
Publication of CA977406A publication Critical patent/CA977406A/en
Expired 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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation
CA168,642A 1972-04-14 1973-04-09 Degaussing device for colour cathode ray tubes Expired CA977406A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3755672A JPS5644626B2 (fr) 1972-04-14 1972-04-14
JP3756272A JPS48104430A (fr) 1972-04-14 1972-04-14
JP6005572A JPS4922037A (fr) 1972-06-17 1972-06-17

Publications (1)

Publication Number Publication Date
CA977406A true CA977406A (en) 1975-11-04

Family

ID=27289506

Family Applications (1)

Application Number Title Priority Date Filing Date
CA168,642A Expired CA977406A (en) 1972-04-14 1973-04-09 Degaussing device for colour cathode ray tubes

Country Status (8)

Country Link
US (1) US3872347A (fr)
CA (1) CA977406A (fr)
DE (1) DE2319262B2 (fr)
FR (1) FR2180067B1 (fr)
GB (1) GB1425748A (fr)
IT (1) IT980156B (fr)
NL (1) NL163403C (fr)
SE (1) SE395814B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL167289C (nl) * 1973-09-13 1981-11-16 Philips Nv Kleurentelevisieweergeefinrichting voorzien van een kleurentelevisiebeeldbuis en een ontmagnetiserings- inrichting.
FI70357C (fi) * 1979-02-16 1986-09-15 Rca Corp Snedstaellt enhetligt spolarrangemang foer faeltavlaegsning
US4316119A (en) * 1979-02-16 1982-02-16 Rca Corporation Tilted unitary degaussing coil arrangement
US4445072A (en) * 1982-09-29 1984-04-24 Motorola, Inc. CRT Degaussing system
JPS60218693A (ja) * 1984-04-13 1985-11-01 三菱電機株式会社 デイスプレイ装置
IN167955B (fr) * 1986-03-27 1991-01-12 Nokia Data Systems
DE3625383A1 (de) * 1986-07-26 1988-02-04 Grundig Emv Entmagnetisierungseinrichtung fuer eine farbfernsehbildroehre
FR2606574B1 (fr) * 1986-11-07 1989-01-13 Videocolor Dispositif de protection de tubes cathodiques a masque vis-a-vis du champ magnetique terrestre
FR2639409B1 (fr) * 1988-11-24 1990-12-28 Loire Electronique Dispositif de fixation de boucle de demagnetisation de televiseur
IT1251351B (it) * 1990-06-25 1995-05-08 Videocolor Spa Apparecchio per la compensazione di campi magnetici
JPH0541176A (ja) * 1991-08-07 1993-02-19 Sony Corp 陰極線管
ATE192882T1 (de) * 1994-10-21 2000-05-15 Koninkl Philips Electronics Nv Farbbildanzeigevorrichtung mit farbbildröhre und entmagnetisierungsvorrichtung
US5815361A (en) * 1995-04-03 1998-09-29 Samsung Electronics Co., Ltd. Magnetic field shielding device in display
KR100265172B1 (ko) * 1996-02-24 2000-09-15 윤종용 모니터의 디가우징 코일 고정장치
KR19990022672A (ko) * 1996-04-09 1999-03-25 엠. 제이. 엠. 반캄 지구 자계에 대한 외부 실드를 갖는 디스플레이관을 구비한디스플레이 장치
US5959824A (en) * 1998-03-25 1999-09-28 Data Security, Inc. Transient magnetic field degaussing system with auto calibration
US5969933A (en) * 1998-03-25 1999-10-19 Data Security, Inc. Transient magnet field degaussing system
US6671007B1 (en) * 1999-12-30 2003-12-30 Thomson Licensing, S.A. Method and apparatus for mounting a degaussing coil
US6731491B2 (en) 2001-06-15 2004-05-04 Data Security, Inc. Bulk degausser with fixed arrays of magnet poles
US6686695B2 (en) * 2001-10-16 2004-02-03 Samsung Sdi Co., Ltd. Cathode ray tube having degaussing coil for minimizing variations in landing of electron beam
US7164569B1 (en) 2004-06-30 2007-01-16 Data Security, Inc. Mechanism for automated permanent magnet degaussing
US20060018075A1 (en) * 2004-07-23 2006-01-26 Data Security, Inc. Permanent magnet bulk degausser
US7701656B2 (en) * 2006-07-14 2010-04-20 Data Security, Inc. Method and apparatus for permanent magnet erasure of magnetic storage media
US7715166B2 (en) * 2006-07-14 2010-05-11 Data Security, Inc. Method and reciprocating apparatus for permanent magnet erasure of magnetic storage media
US20090284890A1 (en) * 2008-05-16 2009-11-19 Thiel Leroy D Mechanism and Method for Permanent Magnet Degaussing
JP2014209521A (ja) * 2013-04-16 2014-11-06 キヤノン株式会社 ステージ装置、描画装置および物品の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317781A (en) * 1963-12-19 1967-05-02 Rca Corp Television degaussing apparatus
US3614519A (en) * 1967-12-18 1971-10-19 Zenith Radio Corp Cathode-ray tube magnetic shield

Also Published As

Publication number Publication date
NL7305174A (fr) 1973-10-16
US3872347A (en) 1975-03-18
SE395814B (sv) 1977-08-22
IT980156B (it) 1974-09-30
NL163403C (nl) 1980-08-15
NL163403B (nl) 1980-03-17
FR2180067B1 (fr) 1976-09-03
DE2319262A1 (de) 1973-10-31
GB1425748A (en) 1976-02-18
FR2180067A1 (fr) 1973-11-23
DE2319262B2 (de) 1977-08-25

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