EP0690468B1 - Système de déviation des faisceaux électroniques pour tube à rayons cathodiques - Google Patents

Système de déviation des faisceaux électroniques pour tube à rayons cathodiques Download PDF

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Publication number
EP0690468B1
EP0690468B1 EP94401501A EP94401501A EP0690468B1 EP 0690468 B1 EP0690468 B1 EP 0690468B1 EP 94401501 A EP94401501 A EP 94401501A EP 94401501 A EP94401501 A EP 94401501A EP 0690468 B1 EP0690468 B1 EP 0690468B1
Authority
EP
European Patent Office
Prior art keywords
coils
separator
electron
deflection system
beam deflection
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 - Lifetime
Application number
EP94401501A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0690468A1 (fr
Inventor
Alain Dossot
Alain Vougny
Christophe Mathey
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.)
Thomson Tubes and Displays SA
Original Assignee
Thomson Tubes and Displays 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 Thomson Tubes and Displays SA filed Critical Thomson Tubes and Displays SA
Priority to EP94401501A priority Critical patent/EP0690468B1/fr
Priority to AT94401501T priority patent/ATE157814T1/de
Priority to DE69405382T priority patent/DE69405382T2/de
Priority to TW083108174A priority patent/TW318254B/zh
Priority to US08/461,096 priority patent/US5592045A/en
Priority to MYPI95001806A priority patent/MY115363A/en
Priority to CN95107836A priority patent/CN1098588C/zh
Priority to SG1995000779A priority patent/SG34242A1/en
Priority to PL95309456A priority patent/PL176432B1/pl
Priority to KR1019950019204A priority patent/KR100393388B1/ko
Priority to JP7167355A priority patent/JPH0850868A/ja
Publication of EP0690468A1 publication Critical patent/EP0690468A1/fr
Application granted granted Critical
Publication of EP0690468B1 publication Critical patent/EP0690468B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • 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
    • H01J2229/70—Electron beam control outside the vessel
    • H01J2229/703—Electron beam control outside the vessel by magnetic fields
    • H01J2229/7032—Conductor design and distribution
    • H01J2229/7035—Wires and conductors
    • H01J2229/7036—Form of conductor
    • H01J2229/7037—Form of conductor flat, e.g. foil, or ribbon type

Definitions

  • the invention relates to a system for deflecting electron beams for cathode ray tubes, and more particularly to the assembly of its constituent elements and to its attachment to the neck of the tube.
  • Such a deflection system generally consists of a pair of vertical deflection coils, of a pair of horizontal deflection coils, the two pairs being electrically isolated by a separator, generally made of plastic, which further improves the mechanical rigidity of the deflection device, of fixing the coils relative to each other and of adjusting the assembly on the neck of the tube.
  • the separator consists of a main body, in one or more parts, substantially in the form of a funnel, and a flexible rear part conforming to the neck of the tube and intended to fix the position of the deflection system along the longitudinal axis. tube; this fixing is generally effected by means of a clamping collar placed above the flexible rear part.
  • auxiliary coils known as modulation of the horizontal scanning speed; these coils are superimposed on the horizontal deflection field created by the main coils an auxiliary field so as to anticipate significant variations in the luminance signal and to modify the speed of the horizontal scanning accordingly. It is also known to advantageously arrange these auxiliary coils on the neck of the tube, the horizontal deflection coils of the deflection system sometimes sometimes partially or entirely covering them. It is also known to produce these auxiliary coils by etching on a support in the form of a rigid or flexible crown. Examples of such arrangements are described in European patent application EP484606.
  • the position of the auxiliary coils relative to the horizontal deflection coils must be adjusted so as to optimize their effect on the magnetic field of horizontal deviation.
  • the object of the present invention is to make the positioning and holding in place of the auxiliary coils automatic relative to the horizontal deflection coils, this in a simple and rapid manner.
  • the deflection system comprises a separator, the substantially cylindrical rear part of which is provided with polarization and / or positioning means and auxiliary coils coming to bear on the wall of the separator, and comprising one or more orifices intended to cooperate with the polarizing and positioning means located on the separator so as to operate the positioning of said auxiliary coils relative to the horizontal and vertical deflection coils in a predetermined position.
  • the auxiliary coils are advantageously held in position by a holding member which is joined to the body of the separator by clipping onto the polarizing and / or positioning means.
  • a beam deflection system for a cathode ray tube includes a pair of horizontal deflection coils and a pair of vertical deflection coils.
  • the two pairs of coils are arranged on either side of a separator, generally made of plastic material, having the function of ensuring the maintenance in positioning of one pair of coils relative to the other as well as the mechanical rigidity of the assembly while providing electrical insulation between the two pairs of coils;
  • the separator as shown in Figure 1 further comprises the means for fixing the deflection system on the neck of the tube: feet (1) allow to position the front part (5) while a flexible crown (2) allows fixing the rear part (4) on the neck of the tube with a clamp (3).
  • the main body 7 of the separator, on which the deflection coils are fixed, and the rear part 4 are separate and can be joined to one another by means which will be described more far.
  • the auxiliary coils used to modify the horizontal deflection field can be coils made of rigid wires or preferably coils engraved on a flexible support.
  • FIG. 3 shows the two coils 20 and 21 etched on a flexible support 27 and the power connector 28 by means of which the signal intended to modify the horizontal deflection field is sent to the coils.
  • the support 27 having by natural elasticity a tendency to return to a substantially flat shape, remains pressed against the internal wall of the separator. However, it must be maintained so that it does not come off following the manipulations that the deflection system will undergo, in particular when it is going to be adjusted and positioned on the neck of the cathode ray tube; for this, a holding member 4 will be fixed on the rear of the body 7 of the separator; this annular cap-shaped member, as shown diagrammatically in FIG.
  • each tab 40 has an opening 41 intended to surround one of the lugs located on the internal surface of the body 7 of the separator and to ensure the fastening by clipping of the parts 4 and 7.
  • a support 42 on which are arranged fixing members no shown, allows the attachment of the connector 28 for supplying the coils 20 and 21.
  • Figures 6 and 7 show sections along two planes, the first containing the axis Z, the second perpendicular to this axis, of the rear part of the deflection system once its various organs assembled.
  • the tabs 40 partially cover the coils 20 and 21 and hold them in position by clipping onto the lugs 12 to 15 located on the internal wall of the body 7 of the separator.
  • the ring 4 must have at least three tabs 40; in a preferred embodiment the ring 4 comprises four legs 40 arranged symmetrically with respect to the XZ and YZ planes.
  • An advantageous embodiment consists in ensuring that the ring 4 allows the fixing of the rear part of the deflection system on the neck of the tube.
  • the ring has on its periphery flexible legs 60 extending in a direction opposite to that of the legs 40; as shown in FIG. 1, a ring 3 covers these tabs and fixes by clamping the rear of the separator on the neck of the tube.
  • the invention is not limited to the positioning of the auxiliary coils inside the separator, it can be applied in the same way to positioning on the external wall, provided that a support 27 is closed, or made closed after having joined edges 29 and 30, for example using adhesive tape; the teeth and the pins are then arranged on the external wall of the rear part of the separator.
  • the legs 40 cover the support 27 and ensure the fixing by clipping on the lugs, these lugs then being arranged on a crown of diameter greater than that of the surface on which the lugs are arranged.

Landscapes

  • Details Of Television Scanning (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Particle Accelerators (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Magnetically Actuated Valves (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Electromagnets (AREA)
  • Microwave Tubes (AREA)
EP94401501A 1994-07-01 1994-07-01 Système de déviation des faisceaux électroniques pour tube à rayons cathodiques Expired - Lifetime EP0690468B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP94401501A EP0690468B1 (fr) 1994-07-01 1994-07-01 Système de déviation des faisceaux électroniques pour tube à rayons cathodiques
AT94401501T ATE157814T1 (de) 1994-07-01 1994-07-01 Elektronenstrahl-ablenksystem für kathodenstrahlröhren
DE69405382T DE69405382T2 (de) 1994-07-01 1994-07-01 Elektronenstrahl-Ablenksystem für Kathodenstrahlröhren
TW083108174A TW318254B (zh) 1994-07-01 1994-09-05
US08/461,096 US5592045A (en) 1994-07-01 1995-06-05 Auxiliary coil fastener in a deflection yoke
CN95107836A CN1098588C (zh) 1994-07-01 1995-06-30 偏转轭中的辅助线圈接线柱
MYPI95001806A MY115363A (en) 1994-07-01 1995-06-30 An auxiliary coil fastener in a deflection yoke
SG1995000779A SG34242A1 (en) 1994-07-01 1995-06-30 An auxiliary coil fastener in a deflection yoke
PL95309456A PL176432B1 (pl) 1994-07-01 1995-06-30 Zespół odchylający lampy elektronopromieniowej
KR1019950019204A KR100393388B1 (ko) 1994-07-01 1995-07-01 편향요크의보조코일패스너
JP7167355A JPH0850868A (ja) 1994-07-01 1995-07-03 偏向ヨークの補助コイル取付具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94401501A EP0690468B1 (fr) 1994-07-01 1994-07-01 Système de déviation des faisceaux électroniques pour tube à rayons cathodiques

Publications (2)

Publication Number Publication Date
EP0690468A1 EP0690468A1 (fr) 1996-01-03
EP0690468B1 true EP0690468B1 (fr) 1997-09-03

Family

ID=8218022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401501A Expired - Lifetime EP0690468B1 (fr) 1994-07-01 1994-07-01 Système de déviation des faisceaux électroniques pour tube à rayons cathodiques

Country Status (11)

Country Link
US (1) US5592045A (zh)
EP (1) EP0690468B1 (zh)
JP (1) JPH0850868A (zh)
KR (1) KR100393388B1 (zh)
CN (1) CN1098588C (zh)
AT (1) ATE157814T1 (zh)
DE (1) DE69405382T2 (zh)
MY (1) MY115363A (zh)
PL (1) PL176432B1 (zh)
SG (1) SG34242A1 (zh)
TW (1) TW318254B (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5861711A (en) * 1996-03-28 1999-01-19 Samsung Electronics Co., Ltd. Deflection yoke mounting device of the spray
JP3737191B2 (ja) * 1996-04-26 2006-01-18 株式会社東芝 陰極線管用偏向ヨークおよび陰極線管装置
KR100220994B1 (ko) * 1996-05-29 1999-09-15 이형도 분리형 타입과 일체형 타입을 겸할 수 있는 편향 요크의 컨버젼스 보정장치
KR19980051541A (ko) * 1996-12-23 1998-09-15 구자홍 음극선관용 편향요크
FR2771216A1 (fr) * 1997-11-18 1999-05-21 Thomson Tubes & Displays Separateur articule pour systeme de deviation de faisceaux electroniques de tube a rayons cathodiques
DE29721276U1 (de) * 1997-12-01 1998-02-19 Siemens AG, 80333 München Monochrom-Monitor
FR2795231B1 (fr) * 1999-06-18 2001-08-17 Thomson Tubes & Displays Dispositif de deflexion pour tube a rayons cathodiques
ITMI20020501A1 (it) * 2002-03-08 2003-09-08 Videocolor Spa Dispositivo di deflessione per tubo a raggi catodici
JP2004200089A (ja) * 2002-12-20 2004-07-15 Hitachi Ltd 陰極線管装置及びテレビジョン受像機
JP2004355855A (ja) * 2003-05-27 2004-12-16 Matsushita Electric Ind Co Ltd 偏向ヨークおよびカラー受像管装置
US6882096B2 (en) * 2003-07-10 2005-04-19 Sony Corporation Active landing control system for raster based devices
US20080203888A1 (en) * 2004-12-31 2008-08-28 Thomson Licensing S.A. Cathode Ray Tube Deflection Yoke Securing Device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594823B2 (ja) * 1976-06-01 1984-02-01 ソニー株式会社 偏向ヨ−ク
JPS59191238A (ja) * 1983-04-15 1984-10-30 Hitachi Ltd 偏向ヨ−ク
US4429293A (en) * 1983-05-13 1984-01-31 Rca Corporation Pincushion raster corrector distortion with improved performance
JPS6039742A (ja) * 1983-08-12 1985-03-01 Hitachi Ltd 偏向ヨ−ク
KR880003556Y1 (ko) * 1985-12-12 1988-10-12 주식회사 금성사 편향요크의 보조코일
JPH03101845A (ja) * 1989-09-16 1991-04-26 Taiyo Yuden Co Ltd 恒温装置
EP0484606B1 (en) * 1990-11-09 1996-04-10 THOMSON TUBES & DISPLAYS SA Scan velocity modulation apparatus
KR940006461Y1 (ko) * 1991-02-12 1994-09-24 주식회사 금성사 전자레인지 배기부의 전자파 차폐구조
DE69207266T2 (de) * 1991-05-31 1996-07-18 Philips Electronics Nv Bildwiedergaberöhre mit Konvergenzkorrekturanordnung
EP0516229B1 (en) * 1991-05-31 1996-01-03 Koninklijke Philips Electronics N.V. Display tube including a convergence correction device
US5485054A (en) * 1992-10-09 1996-01-16 U.S. Philips Corporation Display tube having a deflection coil support and an auxiliary deflection coil support

Also Published As

Publication number Publication date
MY115363A (en) 2003-05-31
KR100393388B1 (ko) 2003-10-17
TW318254B (zh) 1997-10-21
PL309456A1 (en) 1996-01-08
PL176432B1 (pl) 1999-05-31
CN1098588C (zh) 2003-01-08
SG34242A1 (en) 1996-12-06
DE69405382D1 (de) 1997-10-09
ATE157814T1 (de) 1997-09-15
DE69405382T2 (de) 1998-02-12
CN1118547A (zh) 1996-03-13
EP0690468A1 (fr) 1996-01-03
US5592045A (en) 1997-01-07
KR960005726A (ko) 1996-02-23
JPH0850868A (ja) 1996-02-20

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