CA1032649A - Degaussing device for a colour television display tube - Google Patents

Degaussing device for a colour television display tube

Info

Publication number
CA1032649A
CA1032649A CA208,771A CA208771A CA1032649A CA 1032649 A CA1032649 A CA 1032649A CA 208771 A CA208771 A CA 208771A CA 1032649 A CA1032649 A CA 1032649A
Authority
CA
Canada
Prior art keywords
display tube
television display
colour television
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
CA208,771A
Other languages
English (en)
French (fr)
Other versions
CA208771S (en
Inventor
Jan H. Duistermaat
Jan Gerritsen
Constantius J. W. Panis
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1032649A publication Critical patent/CA1032649A/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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
CA208,771A 1973-09-13 1974-09-09 Degaussing device for a colour television display tube Expired CA1032649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7312607.A NL167289C (nl) 1973-09-13 1973-09-13 Kleurentelevisieweergeefinrichting voorzien van een kleurentelevisiebeeldbuis en een ontmagnetiserings- inrichting.

Publications (1)

Publication Number Publication Date
CA1032649A true CA1032649A (en) 1978-06-06

Family

ID=19819590

Family Applications (1)

Application Number Title Priority Date Filing Date
CA208,771A Expired CA1032649A (en) 1973-09-13 1974-09-09 Degaussing device for a colour television display tube

Country Status (15)

Country Link
US (1) US3965386A (h)
JP (1) JPS5426417B2 (h)
AR (1) AR202575A1 (h)
BE (1) BE819799A (h)
BR (1) BR7407535D0 (h)
CA (1) CA1032649A (h)
DE (1) DE2441863C3 (h)
ES (1) ES429962A1 (h)
FR (1) FR2244322B1 (h)
GB (1) GB1480635A (h)
IT (1) IT1020761B (h)
MX (1) MX144270A (h)
NL (1) NL167289C (h)
SE (1) SE397620B (h)
ZA (1) ZA745599B (h)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7707476A (nl) * 1977-07-06 1979-01-09 Philips Nv Werkwijze voor het vervaardigen van een kleuren- beeldbuis en kleurenbeeldbuis vervaardigd vol- gens die werkwijze.
ES240801Y (es) * 1979-01-17 1979-08-16 Bobina desmagnetizadora con doble proteccion.
SE441886B (sv) * 1979-02-16 1985-11-11 Rca Corp Neutraliseringsanordning for ett fergtelevisionsbildror
US4316119A (en) * 1979-02-16 1982-02-16 Rca Corporation Tilted unitary degaussing coil arrangement
US4243913A (en) * 1979-08-29 1981-01-06 Rca Corporation Color picture tube magnetic shielding and degaussing structure
JPS6021458U (ja) * 1983-07-20 1985-02-14 北川工業株式会社 消磁コイル保持具
US4535270A (en) * 1983-11-17 1985-08-13 Rca Corporation Resonant degaussing without residual magnetism
IT1201362B (it) * 1985-10-08 1989-01-27 Plessey Spa Sistema di correzione della geometria dell'immagine risultante dall'assemblaggio del giogo di deflessione su cinescopio a raggi catodici
IN167955B (h) * 1986-03-27 1991-01-12 Nokia Data Systems
GB2196817A (en) * 1986-10-30 1988-05-05 Ibm Degaussing system offsets ambient magnetic fields
FR2606574B1 (fr) * 1986-11-07 1989-01-13 Videocolor Dispositif de protection de tubes cathodiques a masque vis-a-vis du champ magnetique terrestre
JPS63221790A (ja) * 1987-03-11 1988-09-14 Sony Corp 陰極線管
US4951659A (en) * 1988-11-04 1990-08-28 Automatic Liquid Packaging, Inc. Nebulizer with cooperating disengageable on-line heater
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
ES2108648B1 (es) * 1996-01-11 1998-07-01 Arnaiz Alfredo Alarcia Dispositivo de desmagnetizacion y conexion a masa para tubos de rayos catodicos en color.
KR100265172B1 (ko) * 1996-02-24 2000-09-15 윤종용 모니터의 디가우징 코일 고정장치
US6654224B2 (en) * 2002-01-18 2003-11-25 Sony Corporation Degaussing circuit
US20040179321A1 (en) * 2003-03-11 2004-09-16 Tok-Chin Woo Degaussing circuit for cathode ray tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940019A (en) * 1959-02-19 1963-10-23 Plessey Co Ltd Improvements in or relating to scanning coils
US3286122A (en) * 1964-08-31 1966-11-15 Admiral Corp Automatic degaussing circuit
NL6515107A (h) * 1965-11-20 1967-05-22
FR2006216A1 (h) * 1968-04-14 1969-12-19 Sony Corp
FR1600842A (h) * 1968-07-16 1970-08-03
US3571652A (en) * 1969-04-14 1971-03-23 Sony Corp Degaussing device for color picture tube having parallel-slitted beam-selecting grid
JPS5137393Y2 (h) * 1971-10-28 1976-09-13
US3872347A (en) * 1972-04-14 1975-03-18 Tokyo Shibaura Electric Co Degaussing device for colour cathode ray tubes

Also Published As

Publication number Publication date
NL167289C (nl) 1981-11-16
NL7312607A (nl) 1975-03-17
DE2441863C3 (de) 1981-04-09
FR2244322B1 (h) 1981-09-04
MX144270A (es) 1981-09-23
JPS5426417B2 (h) 1979-09-04
FR2244322A1 (h) 1975-04-11
DE2441863B2 (de) 1977-05-05
AU7304674A (en) 1976-03-11
SE397620B (sv) 1977-11-07
JPS5057538A (h) 1975-05-20
AR202575A1 (es) 1975-06-24
ZA745599B (en) 1976-04-28
ES429962A1 (es) 1976-09-16
NL167289B (nl) 1981-06-16
BR7407535D0 (pt) 1975-07-08
GB1480635A (en) 1977-07-20
SE7411388L (h) 1975-03-14
IT1020761B (it) 1977-12-30
DE2441863A1 (de) 1975-04-03
BE819799A (fr) 1975-03-11
US3965386A (en) 1976-06-22

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