GB2010006A - Deflection yokes for cathode ray tubes - Google Patents
Deflection yokes for cathode ray tubesInfo
- 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
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>
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)
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)
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 |
-
1977
- 1977-12-07 FR FR7736826A patent/FR2411486A1/en active Granted
-
1978
- 1978-11-27 NL NL7811615A patent/NL7811615A/en active Search and Examination
- 1978-12-05 DE DE19782852509 patent/DE2852509C2/en not_active Expired
- 1978-12-07 GB GB7847638A patent/GB2010006B/en not_active Expired
Cited By (4)
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 |