CA1093625A - Apparatus producing static eight-pole magnetic field for correcting raster distortion in a television picture tube - Google Patents

Apparatus producing static eight-pole magnetic field for correcting raster distortion in a television picture tube

Info

Publication number
CA1093625A
CA1093625A CA285,162A CA285162A CA1093625A CA 1093625 A CA1093625 A CA 1093625A CA 285162 A CA285162 A CA 285162A CA 1093625 A CA1093625 A CA 1093625A
Authority
CA
Canada
Prior art keywords
pole
deflection
deflection coil
fields
axes
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
CA285,162A
Other languages
English (en)
French (fr)
Inventor
Piet G.J. Barten
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 CA1093625A publication Critical patent/CA1093625A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N9/28—Arrangements for convergence or focusing
    • H04N9/285—Arrangements for convergence or focusing using quadrupole lenses
    • 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
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702—Convergence correction arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/56—Correction of beam optics
    • H01J2229/568—Correction of beam optics using supplementary correction devices
    • H01J2229/5681—Correction of beam optics using supplementary correction devices magnetic
    • H01J2229/5687—Auxiliary coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)
CA285,162A 1976-08-24 1977-08-18 Apparatus producing static eight-pole magnetic field for correcting raster distortion in a television picture tube Expired CA1093625A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7609374A NL7609374A (nl) 1976-08-24 1976-08-24 Inrichting voor het weergeven van televisie- beelden, afbuigspoelenstelsel voor een derge- lijke inrichting en beeldbuis voorzien van een dergelijk afbuigspoelenstelsel.
NL7609374 1976-08-24

Publications (1)

Publication Number Publication Date
CA1093625A true CA1093625A (en) 1981-01-13

Family

ID=19826783

Family Applications (1)

Application Number Title Priority Date Filing Date
CA285,162A Expired CA1093625A (en) 1976-08-24 1977-08-18 Apparatus producing static eight-pole magnetic field for correcting raster distortion in a television picture tube

Country Status (13)

Country Link
JP (1) JPS593018B2 (cs)
AU (1) AU509555B2 (cs)
BE (1) BE858010A (cs)
BR (1) BR7705588A (cs)
CA (1) CA1093625A (cs)
DD (1) DD131435A5 (cs)
DE (1) DE2736162A1 (cs)
ES (1) ES461806A1 (cs)
FR (1) FR2363186A1 (cs)
GB (1) GB1567669A (cs)
IT (1) IT1084860B (cs)
MX (1) MX143041A (cs)
NL (1) NL7609374A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206559A (en) * 1989-08-04 1993-04-27 Kabushiki Kaisha Toshiba Cathode ray tube which improves deflection aberration

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181895C (nl) * 1979-10-02 1987-11-16 Philips Nv Kathodestraalbuis met als multipool gemagnetiseerde correctieringen.
NL8104735A (nl) * 1980-12-05 1982-07-01 Philips Nv Kathodestraalbuis met een afbuigeenheid met een samenstel van permanente magneten dat een statisch multipoolveld opwekt voor het simuleren van een modulatie van het dynamische afbuigveld.
GB8611321D0 (en) * 1986-05-09 1986-06-18 Philips Nv Correcting electron beam misconvergance
NL8601512A (nl) * 1986-06-11 1988-01-04 Philips Nv Kathodestraalbuis met magnetische focusseerlens.
GB2208034A (en) * 1987-08-13 1989-02-15 Ibm Reducing magnetic radiation in front of a cathode ray tube screen
US5177399A (en) * 1988-06-27 1993-01-05 Kabushiki Kaisha Toshiba Color cathode ray tube apparatus
US5225736A (en) * 1988-06-27 1993-07-06 Kabushiki Kaisha Toshiba Color cathode ray tube apparatus
FR2667722B1 (fr) * 1990-10-09 1996-09-06 Videocolor Sa Correcteur de geometrie electromagnetique pour tube a rayons cathodiques monofaisceau.
US5258693A (en) * 1990-10-09 1993-11-02 Videocolor, S.A. Geometry corrector for a cathode ray tube

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739068A (en) * 1952-08-09 1955-10-26 Emi Ltd Improvements in or relating to cathode ray tube arrangements
GB750310A (en) * 1953-04-10 1956-06-13 Marconi Wireless Telegraph Co Improvements in or relating to cathode ray tubes
NL148441B (nl) * 1969-07-09 1976-01-15 Philips Nv Kleurentelevisieweergeefinrichting voorzien van een elektronenstraalbuis, alsmede afbuigspoelenstelsel voor toepassing daarin.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206559A (en) * 1989-08-04 1993-04-27 Kabushiki Kaisha Toshiba Cathode ray tube which improves deflection aberration

Also Published As

Publication number Publication date
DD131435A5 (de) 1978-06-21
BR7705588A (pt) 1978-06-06
FR2363186A1 (fr) 1978-03-24
MX143041A (es) 1981-02-23
FR2363186B1 (cs) 1981-12-04
BE858010A (fr) 1978-02-22
AU509555B2 (en) 1980-05-15
ES461806A1 (es) 1978-05-16
NL7609374A (nl) 1978-02-28
AU2804977A (en) 1979-02-22
DE2736162C2 (cs) 1987-11-05
JPS593018B2 (ja) 1984-01-21
GB1567669A (en) 1980-05-21
JPS5326618A (en) 1978-03-11
IT1084860B (it) 1985-05-28
DE2736162A1 (de) 1978-03-09

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Legal Events

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