GB695607A - Improvements in or relating to electromagnetic electron beam deflection systems - Google Patents
Improvements in or relating to electromagnetic electron beam deflection systemsInfo
- Publication number
- GB695607A GB695607A GB1999351A GB1999351A GB695607A GB 695607 A GB695607 A GB 695607A GB 1999351 A GB1999351 A GB 1999351A GB 1999351 A GB1999351 A GB 1999351A GB 695607 A GB695607 A GB 695607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- yoke
- deflecting
- degrees
- horizontal
- 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
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
695,607. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. (Lorenz Akt.- Ges., C.) Aug. 24. 1951, No. 19993/51. Class 39(i) Electromagnetic deflecting means for a cathode ray receiving tube for deflecting the beam parallel to a given co-ordinate axis comprises a cylindrical yoke of ferromagnetic material about which is wound four coils 10, 11, 12, 13, Fig. 5, formed as toroidal sections and arranged in pairs at opposite ends of two diameters making equal angles of between 22¢ degrees and 45 degrees preferably 30 degrees, with the co-ordinate axis. As shown, coils 10, 11, 12, 13 give horizontal or line deflection, coils 11, 12; 10, 13 being connected in series in aiding relation and the two pairs of series connected coils being connected in parallel in opposing relation. The vertical or frame deflecting coils 15, 16, 17, 18 are similarly arranged and connected with respect to their axis of deflection, and are preferably wound on the same yoke as the other set of coils. The arrangement is stated to give a more homogeneous field than prior art devices in which horizontal and vertical deflecting coils are arranged alternately around a cylindrical ferromagnetic yoke and in which the flux produced by the windings of one side of the yoke is in opposition to that on the opposite side, Figs. 1-3 (not shown), especially if as is preferred the diameters characteristic of the line and frame coils make equal angles with the horizontal and vertical axes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1999351A GB695607A (en) | 1951-08-24 | 1951-08-24 | Improvements in or relating to electromagnetic electron beam deflection systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1999351A GB695607A (en) | 1951-08-24 | 1951-08-24 | Improvements in or relating to electromagnetic electron beam deflection systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB695607A true GB695607A (en) | 1953-08-12 |
Family
ID=10138544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1999351A Expired GB695607A (en) | 1951-08-24 | 1951-08-24 | Improvements in or relating to electromagnetic electron beam deflection systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB695607A (en) |
-
1951
- 1951-08-24 GB GB1999351A patent/GB695607A/en not_active Expired
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