GB2010006A - Deflection yokes for cathode ray tubes - Google Patents

Deflection yokes for cathode ray tubes

Info

Publication number
GB2010006A
GB2010006A GB7847638A GB7847638A GB2010006A GB 2010006 A GB2010006 A GB 2010006A GB 7847638 A GB7847638 A GB 7847638A GB 7847638 A GB7847638 A GB 7847638A GB 2010006 A GB2010006 A GB 2010006A
Authority
GB
United Kingdom
Prior art keywords
winding
coil
cathode ray
reversal
projection
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.)
Granted
Application number
GB7847638A
Other versions
GB2010006B (en
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.)
Videon SA
Original Assignee
Videon SA
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 Videon SA filed Critical Videon SA
Publication of GB2010006A publication Critical patent/GB2010006A/en
Application granted granted Critical
Publication of GB2010006B publication Critical patent/GB2010006B/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
    • H01J29/46—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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

A deflection yoke coil for a cathode ray tube (e.g. colour c.r.t.) is constructed, and/or electrically connected, that the electrical turn density at least in one section of the coil is of opposite polarity to that in the remainder of, or at least another section of the coil. Tappings may be provided allowing electrical connection in opposition (Figs 3, 4 not shown), and the sections may be manufactured separately (Fig. 5, not shown) a parallel connected resistor allowing amplitude variation. Alternatively during winding the rotation direction of the winding machine may be reversed using projection (4) (Fig. 6, not shown). The former arrangement is preferred since reversal of high inertia winding machinery is not required. A projection (5), Fig. 7, may assist winding reversal for a rotating arm, stationary mould machine. The toroidal distribution being achieved by a notched plastic crown. Reversely connected radial or non-radial packages may be used. Fourier distributions are considered and a mathematical analysis included. <IMAGE>
GB7847638A 1977-12-07 1978-12-07 Deflection yokes for cathode ray tubes Expired GB2010006B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7736826A FR2411486A1 (en) 1977-12-07 1977-12-07 ADVANCED DEVIATION COIL

Publications (2)

Publication Number Publication Date
GB2010006A true GB2010006A (en) 1979-06-20
GB2010006B GB2010006B (en) 1983-03-30

Family

ID=9198558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847638A Expired GB2010006B (en) 1977-12-07 1978-12-07 Deflection yokes for cathode ray tubes

Country Status (4)

Country Link
DE (1) DE2852509C2 (en)
FR (1) FR2411486A1 (en)
GB (1) GB2010006B (en)
NL (1) NL7811615A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689679A1 (en) * 1992-04-07 1993-10-08 Thomson Tubes & Displays Device for deflecting electron beams for self-converging cathode ray tubes and corrected in geometry.
WO1993021649A1 (en) * 1992-04-17 1993-10-28 Kabushiki Kaisha Toshiba Deflection device for use in a color cathode-ray tube
US5847503A (en) * 1994-09-24 1998-12-08 Thomson Tubes & Displays S.A. Electron beam deflection device for cathode ray tubes which is self convergent and geometry corrected

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588566A (en) * 1969-07-24 1971-06-28 Rca Corp Electromagnetic deflection yoke having bypassed winding turns
NL7112929A (en) * 1971-09-21 1973-03-23
BE793993A (en) * 1972-01-14 1973-05-02 Rca Corp DEFLECTOR WINDING FOR CATHODIC TUBE WITH COPLANAR ELECTRONIC BARRELS
FR2260906A1 (en) * 1974-02-08 1975-09-05 Videon Sa Colour cathode ray tube with in-line electron guns - has device for improved line convergence at top and bottom of picture screen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689679A1 (en) * 1992-04-07 1993-10-08 Thomson Tubes & Displays Device for deflecting electron beams for self-converging cathode ray tubes and corrected in geometry.
WO1993020578A1 (en) * 1992-04-07 1993-10-14 Thomson Tubes & Displays S.A. Device for the deflexion of electron beams for cathode ray tubes, which is self-convergent and geometry corrected
WO1993021649A1 (en) * 1992-04-17 1993-10-28 Kabushiki Kaisha Toshiba Deflection device for use in a color cathode-ray tube
US5847503A (en) * 1994-09-24 1998-12-08 Thomson Tubes & Displays S.A. Electron beam deflection device for cathode ray tubes which is self convergent and geometry corrected

Also Published As

Publication number Publication date
FR2411486A1 (en) 1979-07-06
GB2010006B (en) 1983-03-30
DE2852509C2 (en) 1981-10-01
DE2852509A1 (en) 1979-06-13
NL7811615A (en) 1979-06-11
FR2411486B1 (en) 1980-06-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951207