GB616353A - Improvements relating to deflecting coils for cathode ray tubes - Google Patents
Improvements relating to deflecting coils for cathode ray tubesInfo
- Publication number
- GB616353A GB616353A GB3?91/46A GB309146A GB616353A GB 616353 A GB616353 A GB 616353A GB 309146 A GB309146 A GB 309146A GB 616353 A GB616353 A GB 616353A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- cathode
- pairs
- sides
- coil
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 241000226585 Antennaria plantaginifolia Species 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
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
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
- H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system
Landscapes
- Details Of Television Scanning (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
616,353. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 31, 1946, No. 3091. Convention date, Jan. 31, 1945. [Class 39 (i)] A magnetic deflecting device for a cathode-ray tube comprises a plurality of pairs, e.g. two pairs, of coils, each coil having sides and ends and the sides being conductor bundles of substantially uniform crosssection, the bundles being arranged adjacent to one another to provide an annulus, Figs. 1, 2, and insulating spacers 31, 32, 33, 34 being provided between adjacent pairs of coils. The spacers may be of wood or synthetic resin and are suitably dimensioned to position the coils so as to reduce or otherwise control pincushion and barrel distortion and to reduce " cross-talk." One end of each of the coils 16, 17 is recessed at 27 so as to receive the flared portion of the cathode-ray tube. Retaining rings 36, 37 each made in two parts fitted together fit against the opposite upturned ends of the coils 22 and also serve as mountings for the coil terminals. A plurality of layers of iron wire 43 are wound over the coil sides, preferably with the interposition of layers of paper or reconstituted cellulose 46; the iron wire 43 is preferably grounded on the bar 60. Either the longer or the shorter pair of coils may provide the. horizontal deflection. The coils may be wound and formed simultaneously by the arrangement described in Specification 604,735, [Group IX].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US575369A US2428947A (en) | 1945-01-31 | 1945-01-31 | Deflection device for cathode-ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB616353A true GB616353A (en) | 1949-01-20 |
Family
ID=24300042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3?91/46A Expired GB616353A (en) | 1945-01-31 | 1946-01-31 | Improvements relating to deflecting coils for cathode ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2428947A (en) |
| GB (1) | GB616353A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179493A (en) * | 1985-07-31 | 1987-03-04 | Rca Corp | Deflection distortion correction device |
| US4823100A (en) * | 1985-07-31 | 1989-04-18 | Rca Licensing Corporation | Deflection distortion correction device |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL77952C (en) * | 1948-07-28 | |||
| US2562395A (en) * | 1949-02-23 | 1951-07-31 | Motorola Inc | Anastigmatic deflection yoke |
| US2569343A (en) * | 1949-02-26 | 1951-09-25 | Rca Corp | Deflection coil arrangement |
| NL181184B (en) * | 1949-11-17 | Kubota Ltd | SINGLE-AXLE OWN-DRIVE AGRICULTURAL MACHINE. | |
| US2570425A (en) * | 1950-05-26 | 1951-10-09 | Philco Corp | Deflection yoke |
| BE516811A (en) * | 1951-02-02 | |||
| US2692355A (en) * | 1951-06-29 | 1954-10-19 | Gen Instrument Corp | Cathode-ray tube deflection yoke |
| US2766407A (en) * | 1951-12-27 | 1956-10-09 | Du Mont Allen B Lab Inc | Cathode ray tube deflection systems |
| US2677784A (en) * | 1952-09-04 | 1954-05-04 | Edwin I Guthman & Co Inc | Electrical apparatus |
| US2821671A (en) * | 1953-03-18 | 1958-01-28 | Rca Corp | Deflection yoke |
| US2834901A (en) * | 1954-05-06 | 1958-05-13 | Rca Corp | Cathode ray tube adjunct |
| BE540954A (en) * | 1954-09-01 | |||
| US2980815A (en) * | 1957-08-05 | 1961-04-18 | Rca Corp | Deflection yoke assembly for cathode ray tubes |
| IT1227963B (en) * | 1988-10-31 | 1991-05-20 | Eldor Spa | DEFLECTION YOKE COMPENSATED FOR CATHODE TUBES |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB471103A (en) * | 1935-11-27 | 1937-08-27 | Michael Bowman Manifold | Improvements in and relating to deflecting means for cathode ray tubes |
| IT349671A (en) * | 1936-02-28 | |||
| BE427739A (en) * | 1937-04-26 | |||
| US2228821A (en) * | 1938-10-01 | 1941-01-14 | Gen Electric | Magnetic sweep coil circuit |
| US2240606A (en) * | 1939-10-21 | 1941-05-06 | Philco Radio & Television Corp | Electron beam deflecting yoke |
| NL61486C (en) * | 1940-03-21 |
-
1945
- 1945-01-31 US US575369A patent/US2428947A/en not_active Expired - Lifetime
-
1946
- 1946-01-31 GB GB3?91/46A patent/GB616353A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179493A (en) * | 1985-07-31 | 1987-03-04 | Rca Corp | Deflection distortion correction device |
| US4823100A (en) * | 1985-07-31 | 1989-04-18 | Rca Licensing Corporation | Deflection distortion correction device |
| GB2179493B (en) * | 1985-07-31 | 1990-01-17 | Rca Corp | Cathode ray tube deflection distortion correction device |
Also Published As
| Publication number | Publication date |
|---|---|
| US2428947A (en) | 1947-10-14 |
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