IT980156B - DEVICE OF DEMAGNETIZATION FOR COLOR TELEVISION TUBES - Google Patents

DEVICE OF DEMAGNETIZATION FOR COLOR TELEVISION TUBES

Info

Publication number
IT980156B
IT980156B IT49358/73A IT4935873A IT980156B IT 980156 B IT980156 B IT 980156B IT 49358/73 A IT49358/73 A IT 49358/73A IT 4935873 A IT4935873 A IT 4935873A IT 980156 B IT980156 B IT 980156B
Authority
IT
Italy
Prior art keywords
demagnetization
color television
television tubes
tubes
color
Prior art date
Application number
IT49358/73A
Other languages
Italian (it)
Original Assignee
Tokyo Shibaura Electric Co
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 filed Critical Tokyo Shibaura Electric Co
Application granted granted Critical
Publication of IT980156B publication Critical patent/IT980156B/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
    • H01J29/003—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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
IT49358/73A 1972-04-14 1973-04-11 DEVICE OF DEMAGNETIZATION FOR COLOR TELEVISION TUBES IT980156B (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
IT980156B true IT980156B (en) 1974-09-30

Family

ID=27289506

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49358/73A IT980156B (en) 1972-04-14 1973-04-11 DEVICE OF DEMAGNETIZATION FOR COLOR TELEVISION TUBES

Country Status (8)

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

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL167289C (en) * 1973-09-13 1981-11-16 Philips Nv COLOR TELEVISION DEVICE EQUIPPED WITH A COLOR TELEVISION IMAGE TUBE AND DEMAGNETIZING DEVICE.
SE441886B (en) * 1979-02-16 1985-11-11 Rca Corp NEUTRALIZATION DEVICE FOR A PREVIOUS TELEVISION IMAGE
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 (en) * 1984-04-13 1985-11-01 三菱電機株式会社 Display unit
IN167955B (en) * 1986-03-27 1991-01-12 Nokia Data Systems
DE3625383A1 (en) * 1986-07-26 1988-02-04 Grundig Emv DE-MAGNETIZING DEVICE FOR A COLOR TV TUBE
FR2606574B1 (en) * 1986-11-07 1989-01-13 Videocolor DEVICE FOR PROTECTING CATHODE RAY TUBES WITH A MASK AGAINST THE EARTH MAGNETIC FIELD
FR2639409B1 (en) * 1988-11-24 1990-12-28 Loire Electronique DEVICE FOR FIXING A TELEVISION DEMAGNETIZING LOOP
IT1251351B (en) * 1990-06-25 1995-05-08 Videocolor Spa APPARATUS FOR COMPENSATION OF MAGNETIC FIELDS
JPH0541176A (en) * 1991-08-07 1993-02-19 Sony Corp Cathode-ray tube
EP0736220B1 (en) * 1994-10-21 2000-05-10 Koninklijke Philips Electronics N.V. Colour display device comprising a colour display tube and a demagnetizing device
US5815361A (en) * 1995-04-03 1998-09-29 Samsung Electronics Co., Ltd. Magnetic field shielding device in display
KR100265172B1 (en) * 1996-02-24 2000-09-15 윤종용 The degaussing coil fixing apparatus of monitor
KR19990022672A (en) * 1996-04-09 1999-03-25 엠. 제이. 엠. 반캄 Display device having display tube with external shield for the earth's magnetic field
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 (en) * 2013-04-16 2014-11-06 キヤノン株式会社 Stage device, drawing device and method for manufacturing article

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
NL163403C (en) 1980-08-15
GB1425748A (en) 1976-02-18
NL163403B (en) 1980-03-17
US3872347A (en) 1975-03-18
FR2180067B1 (en) 1976-09-03
DE2319262A1 (en) 1973-10-31
SE395814B (en) 1977-08-22
FR2180067A1 (en) 1973-11-23
CA977406A (en) 1975-11-04
NL7305174A (en) 1973-10-16
DE2319262B2 (en) 1977-08-25

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