ES461806A1 - Correcting television displays - Google Patents

Correcting television displays

Info

Publication number
ES461806A1
ES461806A1 ES461806A ES461806A ES461806A1 ES 461806 A1 ES461806 A1 ES 461806A1 ES 461806 A ES461806 A ES 461806A ES 461806 A ES461806 A ES 461806A ES 461806 A1 ES461806 A1 ES 461806A1
Authority
ES
Spain
Prior art keywords
unit
image
neck
deflection
around
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
ES461806A
Other languages
Spanish (es)
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
Publication of ES461806A1 publication Critical patent/ES461806A1/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)

Abstract

An improved device for presenting television images having an image tube and an image screen and a deflection coil system comprising a first and a second deflection coil unit, each unit comprising two substantially symmetrical coil halves that are located facing each other, the first unit being rotated by approximately 90º with respect to the second unit, said system of deflection coils being slid around the neck and the funnel-shaped part of the image tube located opposite the screen of image, for the deviation, in two orthogonal directions, of a beam or of several electron beams generated in the neck of the tube by one or more electron guns when the relevant deflection current passes through each coil unit, means being provided to generate a magnetic correction field around the neck and/or around the funnel-shaped part of the to wrapped. (Machine-translation by Google Translate, not legally binding)
ES461806A 1976-08-24 1977-08-22 Correcting television displays Expired ES461806A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7609374A NL7609374A (en) 1976-08-24 1976-08-24 DEVICE FOR DISPLAYING TELEVISION IMAGES, DEVICE COIL SYSTEM FOR SUCH DEVICE AND PICTURE TUBE FITTED WITH SUCH DEFLECTION COIL SYSTEM.

Publications (1)

Publication Number Publication Date
ES461806A1 true ES461806A1 (en) 1978-05-16

Family

ID=19826783

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461806A Expired ES461806A1 (en) 1976-08-24 1977-08-22 Correcting television displays

Country Status (13)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181895C (en) * 1979-10-02 1987-11-16 Philips Nv CATHODE JET TUBE WITH CORRECTION RINGS MULTIPOLO MAGNETIZED.
NL8104735A (en) * 1980-12-05 1982-07-01 Philips Nv CATHODE SPRAY TUBE WITH A DEFLECTION UNIT CONTAINING PERMANENT MAGNETS WHICH GENERATES A STATIC MULTIPOLO FIELD FOR SIMULATING A MODULATION OF THE DYNAMIC DEFLECTION FIELD.
GB8611321D0 (en) * 1986-05-09 1986-06-18 Philips Nv Correcting electron beam misconvergance
NL8601512A (en) * 1986-06-11 1988-01-04 Philips Nv CATHODE BEAM WITH MAGNETIC FOCUSING LENS.
GB2208034A (en) * 1987-08-13 1989-02-15 Ibm Reducing magnetic radiation in front of a cathode ray tube screen
US5225736A (en) * 1988-06-27 1993-07-06 Kabushiki Kaisha Toshiba Color cathode ray tube apparatus
US5177399A (en) * 1988-06-27 1993-01-05 Kabushiki Kaisha Toshiba Color cathode ray tube apparatus
US5206559A (en) * 1989-08-04 1993-04-27 Kabushiki Kaisha Toshiba Cathode ray tube which improves deflection aberration
US5258693A (en) * 1990-10-09 1993-11-02 Videocolor, S.A. Geometry corrector for a cathode ray tube
FR2667722B1 (en) * 1990-10-09 1996-09-06 Videocolor Sa ELECTROMAGNETIC GEOMETRY CORRECTOR FOR SINGLE - BEAM 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 (en) * 1969-07-09 1976-01-15 Philips Nv COLOR TV DISPLAY DEVICE EQUIPPED WITH AN ELECTRON BAM TUBE AND DEVICE COIL SYSTEM FOR USE THEREIN.

Also Published As

Publication number Publication date
DE2736162A1 (en) 1978-03-09
FR2363186A1 (en) 1978-03-24
IT1084860B (en) 1985-05-28
JPS593018B2 (en) 1984-01-21
DD131435A5 (en) 1978-06-21
AU509555B2 (en) 1980-05-15
FR2363186B1 (en) 1981-12-04
BR7705588A (en) 1978-06-06
DE2736162C2 (en) 1987-11-05
JPS5326618A (en) 1978-03-11
NL7609374A (en) 1978-02-28
GB1567669A (en) 1980-05-21
BE858010A (en) 1978-02-22
MX143041A (en) 1981-02-23
CA1093625A (en) 1981-01-13
AU2804977A (en) 1979-02-22

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