GB598981A - Electromagnetic deflecting coils for a cathode ray tube - Google Patents
Electromagnetic deflecting coils for a cathode ray tubeInfo
- Publication number
- GB598981A GB598981A GB1698345A GB1698345A GB598981A GB 598981 A GB598981 A GB 598981A GB 1698345 A GB1698345 A GB 1698345A GB 1698345 A GB1698345 A GB 1698345A GB 598981 A GB598981 A GB 598981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- ray tube
- cathode ray
- cathode
- core
- 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 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000012256 powdered iron Substances 0.000 abstract 1
- 238000004804 winding Methods 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
- H01J29/764—Deflecting by magnetic fields only using toroidal windings
Landscapes
- Details Of Television Scanning (AREA)
Abstract
598,981. Cathode-ray tubes. TRIGGS, W. W. (Farnsworth Television & Radio Corporation). July 3, 1945, No. 16983. [Class 39 (i)] [Also in Group XXXV] An electromagnetic deflecting coil for a cathode-ray tube comprises a core 5 which may be of powdered iron or formed from a continuous ribbon of transformer iron on which is wound a pair of coils 7, 8 each occupying half the core, and connected up so as to form consequent poles. A second pair of coils 9, 10 overlies the first and is displaced 90 degrees from the first to give deflection in a direction at right angles to the first. A third winding 12 may be superimposed circumferentially to act as a focusing coil. Preferably the number of turns of each of the deflecting coils varies sinusoidally from end to end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US519719A US2414925A (en) | 1944-01-26 | 1944-01-26 | Scanning and focusing yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB598981A true GB598981A (en) | 1948-03-02 |
Family
ID=1732727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1698345A Expired GB598981A (en) | 1944-01-26 | 1945-07-03 | Electromagnetic deflecting coils for a cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB598981A (en) |
-
1945
- 1945-07-03 GB GB1698345A patent/GB598981A/en not_active Expired
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