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EP0169613A1 - Bobines en forme de selle pour unités de déviation électromagnétiques - Google Patents

Bobines en forme de selle pour unités de déviation électromagnétiques Download PDF

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Publication number
EP0169613A1
EP0169613A1 EP85201158A EP85201158A EP0169613A1 EP 0169613 A1 EP0169613 A1 EP 0169613A1 EP 85201158 A EP85201158 A EP 85201158A EP 85201158 A EP85201158 A EP 85201158A EP 0169613 A1 EP0169613 A1 EP 0169613A1
Authority
EP
European Patent Office
Prior art keywords
saddle
pair
coil
coils
saddle coils
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
EP85201158A
Other languages
German (de)
English (en)
Other versions
EP0169613B1 (fr
Inventor
John Gilbert Metcalfe
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.)
Philips Electronics UK Ltd
Koninklijke Philips NV
Original Assignee
Philips Electronic and Associated Industries Ltd
Philips Electronics UK Ltd
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics 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 Electronic and Associated Industries Ltd, Philips Electronics UK Ltd, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Electronic and Associated Industries Ltd
Publication of EP0169613A1 publication Critical patent/EP0169613A1/fr
Application granted granted Critical
Publication of EP0169613B1 publication Critical patent/EP0169613B1/fr
Expired 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
    • H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
    • 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
    • H01J29/766—Deflecting by magnetic fields only using a combination of saddle coils and toroidal windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/236—Manufacture of magnetic deflecting devices for cathode-ray tubes
    • 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 method of forming a saddle coil for a deflection coil assembly which in use deflects the electron beam or beams of a cathode ray display tube in one of two orthogonal directions, in which a saddle coil is formed by a conductive pattern on assembled insulating film parts.
  • the invention also relates to a method of forming deflection coil assemblies and electromagnetic deflection units, and also to saddle coils, deflection coils assemblies and deflection units per se.
  • a saddle coil produced in this way does not readily lend itself to multiple layer construction due to difficulties in providing the required connections between the cylindrical and annular parts and where the above specification refers to more than one layer this in fact relates to two layers each of which carries the deflection coil for a different deflection direction.
  • the limitation placed by the shaping of the parts and hence on the saddle coils so produced makes it only suitable for use as deflection coils for monochrome cathode ray display tubes of limited deflection angle.
  • Such saddle coils are not suited to wide angle monochrome display tubes nor to colour display tubes where the required deflection field places particular constraints on the shaping and construction of the saddle coils.
  • the invention provides a method of forming a saddle coil for a deflection coil assembly which in use deflects the electron beam or beams of a cathode ray display tube in one of two orthogonal directions, in which a saddle coil is formed by a conductive pattern on assembled insulating film parts, characterised in that said method comprises the stages of:-
  • the advantage of using printed wiring techniques to produce the coils or various layers means that the conductors are accurately positioned between samples of the same saddle coil as well as the equipment required for their manufacture being less expensive than that required for wire wound saddle coils.
  • the distal ends of said first 'U' shaped part may have projections which are turned in towards each other whilst said second part is also 'U' shaped with its side limbs being short relative to its transverse limb, and assembling the first part with the second part such that a portion of each side limb of the second part overlaps a portion of a respective projection on the first part. This makes it easier to connect the conductors of the first and second parts.
  • the conductive pattern on the second part may face the conductive pattern at the distal ends of the first part, and welding members of the conductive pattern on the second part to respective members of the conductive patern on the first part.
  • the insulating film of said first and second parts may be provided with location holes, positioning of said first and second parts on assembly being achieved with the aid of said location holes whilst alignment of successive layers of said saddle coil is also achieved with the aid of said location holes. This leads to accurate positioning between the various layers.
  • the invention also provides a method of forming a deflection coil assembly which in use deflects the electron beam or beams of a cathode ray display tube in one of two orthogonal directions, characterised in that said method comprises the steps of:-
  • this method may comprise the additional step of mounting said assembled first and second saddle coils to the inner face of a conical shaped support for positioning the saddle coils.
  • first and second saddle coils may be positioned on assembly with the aid of these location holes which improve the positioning accuracy.
  • the invention further provides a method of forming an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use deflects the electron beam or beams of a cathode ray display tube in respective orthoginal directions, characterised in that said method comprises the steps of:-
  • the assembly of said first and second pairs of saddle coils may comprise the mounting of said pairs of saddle coil on the respective inner and outer faces of a conical shaped support for providing the relative positions of the saddle coils.
  • the support When the layers and the saddle coils are provided with location holes the support may be provided with locating pins on at least one of its faces, mounting of the respective pair of saddle coils being achieved said locating pins engaging the location holes of the saddle coils.
  • the second pair of saddle coils may be bonded to said first pair of saddle coils.
  • Each saddle coil of .each pair of saddle coils may then be provided with location holes, said method comprising the additional step of registering associated location holes on the first and second pair of saddle coils to ensure correct positioning of the first deflection coil assembly with the second deflection coil assembly.
  • the invention additionally provides a method of forming an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use deflects the electron beam or beams of a cathode ray tube in respective orthogonal directions, characterised in that said method comprises the steps of:-
  • the assembly of said wound magnetic core and said first deflection coil assembly may comprise the steps of mounting the first pair of saddle coils on the inner face of a conical shaped support and mounting the wound magnetic core on the outer face of said support.
  • the first deflection coil assembly may be bonded to said wound magnetic core.
  • the invention also provides a method of forming an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use respectively deflect the electron beam or beams of a cathode ray display tube in respective orthogonal directions, said first and second deflection coil assemblies respectively comprising a first and second pair of saddle coils with each saddle coil being formed by a conductive pattern on assembled insulating film parts, characterised in that said method comprises the stages of:-
  • a deflection coil produced by this method has the advantage that the line and field deflection coil assemblies can be accurately positioned relative to each other as well as reducing the transformer effect between the two deflection coil asemblies.
  • Each part of each layer is provided with location holes which are employed to achieve the required positioning between the layers and hence the first and second deflection coil assemblies.
  • the invention further provides a saddle coil for a deflection coil assembly which in use deflects the electron beam or beams of a cathode ray display tube in one of two orthogonal directions, which saddle coil comprises a conductive pattern on assembled insulating film parts, characterised in that each saddle coil has a plurality of layers with each layer being formed from a first substantially 'U' shaped lamelliform part whose shape has been distorted such that it is flared and a second lamelliform part of insulating film with given conductive patterns on each part, the width of each part at any point being marginally greater than the width of the conductive pattern at that point, the distal ends of the first part being bridged by the second part such that the conductive pattern on the second part provides the required inter-connections between ends of the conductive pattern at the distal ends of the first part to form an electrical coil, a plurality of layers being adhered to each other to produce a substantially rigid and self-supporting saddle coil with the transverse limb and the flared side limbs of
  • the distal ends of said first 'U' shaped part may have projections which are turned in towards each other whilst said second part is also 'U' shaped with side limbs which are short relative to its transverse limb, a portion of each side limb of the second part overlapping a portion of a respective projection on the first part.
  • Each layer the conductive pattern on the second part may face the conductive pattern at the distal ends of said part with members of the conductive pattern on the second part being welded to respective members of the conductive pattern on the first part.
  • the insulating film of said first and second parts may contain location holes which are aligned in said saddle coil.
  • the invention also provides a deflection coil assembly which in use deflects the electron beam or beams of a cathode ray display tube in one of two orthogonal directions, characterised in that said deflection coil assembly comprises a first and a second saddle coil as above described positioned diagonally opposite each other around an imaginary cylinder having a diameter which is not less than that of the neck of the cathode ray display tube for which said deflection unit is intended.
  • Such an assembly may additionally comprises a conical shaped support against the inner face of which said first and second saddle coils are mounted.
  • the first and second saddle coils may be positioned with the aid of these location holes.
  • the invention additionally comprises an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use deflects the electron beam or beams of a cathode ray display tube in respective orthogonal directions, characterised in that said deflection unit comprises a first pair of saddle coils each as above described forming the first deflection coil assembly which coils are positioned diagonally opposite each other around an imaginary cylinder having a diameter which is not less than that of the neck of the cathode ray display tube for which said deflection unit is intended with a second pair of saddle coils each also as above described forming the second deflection coil assembly which coils are positioned diagonally opposite each other outside and at 90° to said first pair of saddle coils, and a magnetic core around the pair of saddle coils.
  • said deflection unit comprises a first pair of saddle coils each as above described forming the first deflection coil assembly which coils are positioned diagonally opposite each other around an imaginary cylinder having a diameter which is not less than that of the neck of the cathode
  • the unit may additionally comprise a conical shaped support with the first pair of saddle coils being mounted against the inner face of said support whilst the second pair of saddle coils are mounted against the outer face of said support.
  • This support may be provided with locating pins on at least one of its faces which engage with corresponding location holes formed in the respective pair of saddle coils.
  • the first and second pairs of saddle coils may be bonded to each other and the correct positioning of said first and second pairs of saddle coils may be ensured by the registration of location holes in said saddle coils.
  • the invention yet further provides an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use deflects the electron beam or beams of a cathode ray display tube in respective orthogonal directions, characterised in that said deflection unit comprises a pair of saddle coils each as above described forming the first deflection coil assembly which coils are positioned diagonally opposite each other around an imaginary cylinder having a diameter which is not less than that of the cathode ray display tube for which said deflection unit is intended, and a second deflection coil assembly toroidally wound about a magnetic core mounted on the first deflection coil assembly with the first deflection coil assembly being positioned at 90° to the second deflection coil assembly.
  • Such a deflection unit may additionally comprise a conical shaped support with the saddle coils mounted against the inner face of the support and the wound magnetic core mounted against the outer face of the support.
  • the first deflection coil assembly may be bonded to said wound magnetic core.
  • the invention additionally provides an electromagnetic deflection unit comprising first and second deflection coil assemblies which in use respectively deflect the electron beam or beams of a cathode ray display tube in respective orthogonal directions, said first and second deflection coil assemblies respectively comprising a first and second pair of saddle coils with each saddle coil being formed by a conductive pattern on assembled insulating film parts, characterised in that each saddle coil has a plurality of layers with each layer of each saddle coil being formed from a first substantially 'U' shaped lamelliform part whose shape has been distorted such that it is flared and a second lamelliform part from insulating film with given conductive patterns on each part, the first and second parts for one of the first pair of saddle coils having substantially the same shape as the respective first and second parts for the other of the said first pair whilst the first and second parts for one of the second pair of saddle coils have substantially the same shape as the respective first and second parts of the other of the said second pair, the distal ends of the first part being bridged by the
  • Each saddle coil may be provided with location holes by means of which the required positioning of said first and second deflection coil assemblies is achieved.
  • Figure 1 is a longitudinal sectional view in diagrammatic form through a colour television display tube assembly whose longitudinal axis is indicated by Z, the display tube 1 having a display screen 2 at the conical end of the tube whilst the neck end 3 remote from the display screen contains three electron guns 4 situated in one plane, the longitudinal axis lying on the plane with the central electron gun on the axis.
  • An electromagnetic deflection unit 5 is mounted on the display tube such that it surrounds a portion of the neck and a portion of the conical or flared part.
  • This deflection unit 5 comprises a line deflection coil assembly 7 formed by a first pair of saddle coils and a field deflection coil assembly 8 formed by a second pair of saddle coils, the two coil assemblies being surrounded by a soft magnetic core 6 in the form of an annular flared ring.
  • the two deflection coil assemblies are generally mounted on a support (not shown) of insulating material whose shape is substantially that of a frustrum.
  • Each saddle coil is shown to be of the "shell" or "mussel” type which means that its end section adjacent the electron gun 4 (the gun end) is not bent away from the tube's neck and the longitudinal axis, as is the end section adjacent the display screen 2 (the screen end), but lies parallel to the longitudinal axis Z.
  • the core 6 may be formed as a single piece; if a saddle coil is bent at its gun end the core will have to be assembled from, typically, two parts which are clipped or bonded together.
  • FIG. 2 A typical saddle coil for the line deflection coil assembly for a current colour television display tube of screen size 22 inch and 110° deflection angle is shown in Figure 2.
  • the reference 9 indicates the gun end of the saddle coil whilst the screen end is indicated by the reference 10 whilst the references 11 and 12 indicate respective flared side members which join the gun 9 and screen 10 ends.
  • the screen end 10 of the saddle coil comprises a transverse portion 13 and respective portions 14 and 15 by which the transverse portion 13 is joined to the respective side members 11 and 12.
  • the regions between the side members 11, 12 and theassociated portions 14,15 are wound in such a manner as to provide spaces in the winding, these spaces being indicated by the references 16A,16B,17A and 17B. Corresponding spaces may also be provided in the gun end 9 of the saddle coil.
  • the gun 9 and screen 10 ends and the side members 11 and 12 define a window 18.
  • a typical saddle coil of the field deflection coil assembly for such a display tube will be formed in a similar manner to that described save that the shape and proportions of the its various components will differ to that for the saddle coil of the line deflection coil assembly.
  • Saddle coils as described above are typically wound from copper wire of small dimension e.g. 0.5 mm diameter, the wire being coated with an electrical insulant and a thermo-setting adhesive.
  • Winding takes place in special winding machines which wind the saddle coils substantially to their final shape and introduce the spaces adjacent the screen end (16A,16B,17A and 17B in Figure 2) during the winding process, the shapes of these spaces being determined by retractable pins in the winding head which limits the shapes these spaces can take.
  • each saddle coil is retained in a jig with pressure being applied to obtain the required mechanical dimensions, a current being passed through its turns to soften the thermo-setting adhesive which is afterwards allowed to cool to bond the wires of the winding together and form a self supporting saddle coil.
  • winding machines are extremely expensive and any minor winding variations between one machine and another can produce a variation in the deflection fields produced by the deflection units using such coils which need to be reproducably accurate for colour television display tubes.
  • each saddle coil is produced from a plurality of layers of an insulating film which contain electrically conductive patterns usually of copper.
  • each layer forms a flexible printed circuit whose conductive pattern can be provided by one of the well known techniques for producing printed circuit wiring.
  • the shape required for the saddle coil as produced will be that of Figure 2 or a shape which is similar to that, depending on the display tube the saddle coil is to be used with or whether it is for a line or field deflection coil assembly, it will be appreciated that each layer cannot be produced as a single piece from a flat lamelliform sheet of printed circuit film if the required shape is to be reliably reproduced.
  • each layer is made up from first and second lamelliform parts which are respectively shown in Figures 3 and 4 with their electrical conductors uppermost.
  • Most of the references used in these two figures refer to the corresponding portions of the saddle coil shown in Figure 2 save that the portions 14 and 15 are divided and the divided portions indicated by the suffixes A and B.
  • the first part shown in Figure 3 is substantially 'U' shaped with the distal ends being turned in to form the portions 14A and 15A, the film being divided at 19.
  • the width of the first part at any point is only marginally greater than the width of the conductive pattern at that point.
  • the second part shown in Figure 4 is of shallow 'U' shape and forms a bridging member where the short side limbs form the portions 14B and 15B and the transverse limb forms the transverse portion 13, this second part also carrying copper conductors, four only of which 25, 26, 27 and 28 are shown though again it will be appreciated that others will be present between those shown, these conductors providing the neccessary connections between the conductors on the first part to produce an electrical coil which will be explained hereinafter.
  • the first and second parts for each layer of the saddle coil are assembled in a jig such that the two parts are positioned in the manner shown in Figure 5 with an overlap between parts 14A and 14B, and between 15A and 15B such that conductors on the first part are in contact and connected to conductors on the second part which may be suitably achieved by ultrasonic welding.
  • Assembly is achieved by distorting the first part from the substantially 'U' shape it occupies in the flat to a substantially 'Y * shape, accurate positioning of the two parts being achieved by the use of locating holes in the insulating film of the two parts either at suitable places where the conductors are suitably spaced or at additional places outside of the conductors.
  • This first part is distorted such that its shape follows the relevant contour of the display tube about the transition from the neck to cone portions. Convenient places for locating holes in the first part could be the spaces 16A,16B,17A,17B. It will be seen that the shape of the layer produced in Figure 5 substantially corresponds to that of the saddle coil in Figure 2.
  • the complete saddle coil will be produced by assembling a number, say six, of such layers in a jig with suitable electrical interconnections between the layers to produce an electrical saddle coil.
  • a layer of adhesive such as a cold or thermo-setting adhesive, will be provided between successive layers which can be applied by the use of a silk screen or other suitable mask.
  • the adhesive between the layers on assembly will then be allowed to set, heat being required in the case of a thermo-setting adhesive which may be provided by an external source or by the application of a current of sufficient magnitude through the turns of the saddle coil so formed.
  • a thermo-setting adhesive which may be provided by an external source or by the application of a current of sufficient magnitude through the turns of the saddle coil so formed.
  • the assembly will form a rigid and self-supporting saddle coil which will be substantially the same shape as that shown for a wire wound saddle coil of Figure 2.
  • the transverse limb of the first part forms the gun end whilst the side limbs of the first part form the flared side members.
  • the second part forms at least part of the screen end.
  • the conductive pattern on the first part of each layer as shown in Figure 3 is symmetrical about the broken centre line C which passes through the division 19 and the middle of the gun end 9.
  • the start and finish of the coil for each layer may be provided at the portion 14A where on assembly the overlap of the two parts occurs and the point at which the windings start and finish may alternate from layer to layer such that the deflection current flows from the outside towards the inside in (say) odd numbered layers and from the inside towards the outside in even numbered layers (as viewed in Figure 3).
  • This may be achieved by employing a conductive pattern on the first part for each layer which is substantially the same for each layer with a conductive pattern for the second part which differs for the odd numbered layers compared with that for the even numbered layers.
  • FIGS 6 and 7 show the second part of a layer together with the portions 14A,15A of the first part.
  • the conductors 25,26,27 and 28 are shown dotted on the second part as they are.under the insulating foil as viewed whilst those on the first part are shown in continuous lines as they are on the top side of the insulating foil as viewed in these Figures.
  • the portions 14B,15B respectively overlap the portions 14A,15A and certain conductors on these portions are welded to each other such as by ultrasonic welding.
  • the conductors 25,26,27 and 28 always respectively overlap and are welded to the conductors 20,21,22 and 23.
  • a saddle coil according to the invention was designed to replace a wire wound saddle coil which had 144 turns of 0.5 mm diameter insulated copper wire.
  • the replacement saddle coil was chosen to have six layers each layer of which had a coil of 24 turns formed in the manner shown in Figure 8 where:-
  • each copper conductor substantially corresponds to that of a 0.5 mm diameter wire.
  • materials for the film are polyester or polyimide sold under various trade names.
  • a pair of saddle coils produced in the manner described above may be employed as the line deflection coil assembly 7 of Figure 1 and may be combined with a pair of saddle coils produced in a similar manner but of different dimensions which form the field deflection coil assembly 8 of that Figure.
  • the field deflection coil assembly may be toriodally wound around the core 6 in known manner.
  • the problem of sensitivity may be overcome if instead of assembling each saddle coil separately from its individual layers the line and field deflection coil assemblies are produced as a single structure from the individual layers of the four saddle coils by interleaving the layers of the four saddle coils for the field deflection coil assembly between the layers of the saddle coils for the line deflection coil assembly.
  • This may be achieved in a suitable jig with an adhesive applied between the various layers such that when the adhesive has set a rigid structure is achieved of the two deflection coil assemblies whose rotational positions are precisely defined, the accuracy of which will be to substantially reduce if not cancel the transformer effect between the two deflection coil assemblies.
  • the interleaving of the saddle coil layers of the two deflection coil assemblies will increase the sensitivity of the field deflection coil assembly.
  • the positioning of the (copper) electrically conductive turns can be very precisely controlled from the production of the two parts for each layer from the flat lamelliform material through to the finished saddle coil and assembly.
  • the dimensions of each successive layer may change slightly such that the outer layer is larger than the inter layer.
  • the conductor turns on the first part of each layer are symmetrical and the interconnection is provided on the second part the accuracy of the deflection field generated by the side portions will be very high. Changing the direction of current flow in the coils between successive layers i.e. outer to inner for one layer and then inner to outer for the next layer, produces a cancelling effect on any magnetic field errors produced at the screen end of a saddle coil and hence on its deflection coil assembly.
  • saddle coils that can be produced by the above described methods may have shapes which differ to those illustrated.
  • shapes of the spaces 16A,16B,17A and 17B may differ from those shown and may have shapes which could be achieved with saddle coils wound from wire only with extreme difficulty.
  • the conductive pattern on each layer is formed by the techniques of printed circuit wiring and this is not limited to the more usual methods of starting with a film carrying a conductive layer which is etched to produce the required pattern but also includes techniques where the conductive pattern is applied and bonded to the film either from a strip or as a complete pattern.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
EP85201158A 1984-07-27 1985-07-10 Bobines en forme de selle pour unités de déviation électromagnétiques Expired EP0169613B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8419277A GB2162364A (en) 1984-07-27 1984-07-27 Saddle coils for electromagnetic deflection units
GB8419277 1984-07-27

Publications (2)

Publication Number Publication Date
EP0169613A1 true EP0169613A1 (fr) 1986-01-29
EP0169613B1 EP0169613B1 (fr) 1988-11-02

Family

ID=10564591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85201158A Expired EP0169613B1 (fr) 1984-07-27 1985-07-10 Bobines en forme de selle pour unités de déviation électromagnétiques

Country Status (5)

Country Link
EP (1) EP0169613B1 (fr)
JP (1) JPS6139439A (fr)
KR (1) KR860001462A (fr)
DE (1) DE3566059D1 (fr)
GB (1) GB2162364A (fr)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
EP0700067A1 (fr) * 1994-08-29 1996-03-06 Matsushita Electronics Corporation Bobine de déviation et tube à rayons cathodiques couleur comprenant la bobine de déviation
WO1996021237A1 (fr) * 1994-12-29 1996-07-11 Orion Electric Co., Ltd. Collier de deviation de type film et sa fabrication
WO1997048118A1 (fr) * 1996-06-12 1997-12-18 Orion Electric Co., Ltd. Film a deux cotes pour element deflecteur de type film utilise dans un tube cathodique
WO1998019325A1 (fr) * 1996-10-25 1998-05-07 Orion Electric Co., Ltd. Element de deflexion chevauchant et de type film pour tube cathodique comportant un film de connexion a deux cotes
WO1998019326A1 (fr) * 1996-10-25 1998-05-07 Orion Electric Co., Ltd. Procede de disposition du diagramme de fils conducteurs d'un element deflecteur chevauchant et de type film pour tube cathodique
US5942846A (en) * 1997-06-27 1999-08-24 Matsushita Electronics Corporation Deflection yoke with horizontal deflection coil
US6008574A (en) * 1994-08-29 1999-12-28 Matsushita Electronics Corporation Deflection yoke providing improved image quality

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Publication number Priority date Publication date Assignee Title
KR980005234A (ko) * 1996-06-12 1998-03-30 엄길용 음극선관의 필름형 편향부재 제조방법 및 그 편향부재
KR980005233A (ko) * 1996-06-12 1998-03-30 엄길용 음극선관의 필름형 편향부재 제조방법 및 이에 의해 제조된 편향부재
KR20030068671A (ko) * 2002-02-15 2003-08-25 엘지전자 주식회사 전기밥솥

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DE1764871A1 (de) * 1965-07-30 1972-03-02 Emi Ltd Ablenkspule mit einem flexiblen Traeger
GB1326214A (en) * 1970-05-14 1973-08-08 Marconi Co Ltd Cathoderay tube apparatus
GB1398388A (en) * 1972-01-13 1975-06-18 Plessey Co Ltd Cathode-ray tube deflection coils

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NL7415441A (nl) * 1974-11-27 1976-05-31 Philips Nv Afbuigspoel voor een kathodestraalbuis en werk- wijze voor het vervaardigen daarvan.
JPS5588238A (en) * 1978-12-27 1980-07-03 Fujitsu Ltd Manufacturing method of coil for electron beam deflector
JPS5923436A (ja) * 1982-07-30 1984-02-06 Toshiba Corp 鞍型偏向コイル装置

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Publication number Priority date Publication date Assignee Title
DE1764871A1 (de) * 1965-07-30 1972-03-02 Emi Ltd Ablenkspule mit einem flexiblen Traeger
GB1326214A (en) * 1970-05-14 1973-08-08 Marconi Co Ltd Cathoderay tube apparatus
GB1398388A (en) * 1972-01-13 1975-06-18 Plessey Co Ltd Cathode-ray tube deflection coils

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986397A (en) * 1994-08-23 1999-11-16 Matsushita Electronics Corporation Deflection yoke and color cathode ray tube comprising the deflection yoke
US5982087A (en) * 1994-08-29 1999-11-09 Matsushita Electronics Corporation Deflection yoke and color cathode ray tube comprising the deflection yoke
EP0788134A1 (fr) * 1994-08-29 1997-08-06 Matsushita Electronics Corporation Bobine de déviation et tube à rayons cathodiques couleur comprenant la bobine à déviation
EP0788135A1 (fr) * 1994-08-29 1997-08-06 Matsushita Electronics Corporation Bobine de déviation et tube à rayons cathodiques couleur comprenant la bobine de déviation
EP0790632A1 (fr) * 1994-08-29 1997-08-20 Matsushita Electronics Corporation Bobine de déviation et tube à rayons cathodiques couleur comprenant la bobine à déviation
EP0700067A1 (fr) * 1994-08-29 1996-03-06 Matsushita Electronics Corporation Bobine de déviation et tube à rayons cathodiques couleur comprenant la bobine de déviation
US6008574A (en) * 1994-08-29 1999-12-28 Matsushita Electronics Corporation Deflection yoke providing improved image quality
US5859495A (en) * 1994-08-29 1999-01-12 Matsushita Electronics Corporation Deflection yoke and color cathode ray tube comprising the deflection yoke
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WO1997048118A1 (fr) * 1996-06-12 1997-12-18 Orion Electric Co., Ltd. Film a deux cotes pour element deflecteur de type film utilise dans un tube cathodique
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Also Published As

Publication number Publication date
DE3566059D1 (en) 1988-12-08
KR860001462A (ko) 1986-02-26
EP0169613B1 (fr) 1988-11-02
GB8419277D0 (en) 1984-08-30
JPS6139439A (ja) 1986-02-25
GB2162364A (en) 1986-01-29

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