GB475527A - Improvements in or relating to magnetic deflecting systems for electron discharge apparatus - Google Patents
Improvements in or relating to magnetic deflecting systems for electron discharge apparatusInfo
- Publication number
- GB475527A GB475527A GB14529/36A GB1452936A GB475527A GB 475527 A GB475527 A GB 475527A GB 14529/36 A GB14529/36 A GB 14529/36A GB 1452936 A GB1452936 A GB 1452936A GB 475527 A GB475527 A GB 475527A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- magnetic
- deflecting
- plates
- frame
- 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
- 230000005291 magnetic effect Effects 0.000 title abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 238000010894 electron beam technology Methods 0.000 abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 229940116318 copper carbonate Drugs 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 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
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Particle Accelerators (AREA)
Abstract
475,527. Cathode-ray tubes. FERNSEH AKT.-GES. May 22, 1936, No. 14529. Convention date, May 23, 1935. [Class 39 (i)] A magnetic device for deflecting an electron beam in an electron-discharge apparatus comprises a hollow ferro-magnetic member having one or more deflecting coils on its inner surface. The member 1, Fig. 3, carries a coil 4 of trapezoidal cross-section and is in the form of a truncated square pyramid having apertures 2, 3 through which the electron beam enters and emerges. If the device is used in television apparatus, the aperture 3 is preferably a rectangle having the ratio'of its sides equal to that of the sides of the image. In a modification for deflecting a beam in two co-ordinate directions, the device comprises two intersecting portions of rectangular pyramids each having a coil. In a further modification, Fig. 5, for use within the evacuated space of an electrondischarge device, a coil 3 is wound on a frame 4 of heat resisting material, e.g. glass or ceramic material carrying two square plates 5 notched to retain the windings. The ray enters through a circular bush 6 in one of the plates and emerges through a square or rectangular frame 7. Insulating plates 8 are placed over the winding and a second coil 9 at right-angles to the first is wound on the frame, the whole being inserted in a ferro-magnetic casing. The coil may be insulated with copper oxide or carbonate which may be produced while the device is in the annealing oven by the admission of air or carbon dioxide, or a layer of waterglass mixed with an insulating powder such as chalk may be used. The magnetic casing should have low hysteresis and eddy current losses and may be of granular material mixed with a binding agent. Specification 449,533 is referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE475527X | 1935-05-23 | ||
| DEF7638D DE901684C (en) | 1935-05-23 | 1935-10-25 | Coil arrangement for deflecting cathode rays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475527A true GB475527A (en) | 1937-11-22 |
Family
ID=25944266
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14529/36A Expired GB475527A (en) | 1935-05-23 | 1936-05-22 | Improvements in or relating to magnetic deflecting systems for electron discharge apparatus |
| GB28568/36A Expired GB475539A (en) | 1935-05-23 | 1936-10-21 | Improvements in or relating to magnetic deflecting systems for cathode ray tubes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28568/36A Expired GB475539A (en) | 1935-05-23 | 1936-10-21 | Improvements in or relating to magnetic deflecting systems for cathode ray tubes |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2206125A (en) |
| DE (2) | DE724550C (en) |
| FR (2) | FR806673A (en) |
| GB (2) | GB475527A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976695C (en) * | 1943-09-08 | 1964-03-05 | Philips Nv | Deflection coil arrangement for cathode ray tubes |
| NL149134B (en) * | 1949-10-04 | Snam Progetti | PROCESS FOR THE PREPARATION OF AMMONIUM AND ALKALINE METAL PYROSULPHATES. | |
| US2570425A (en) * | 1950-05-26 | 1951-10-09 | Philco Corp | Deflection yoke |
| US2793311A (en) * | 1951-04-18 | 1957-05-21 | Du Mont Allen B Lab Inc | Deflection yoke |
| US2785329A (en) * | 1952-07-10 | 1957-03-12 | Arthur L Tirico | Expanded yoke for deflecting convergent beams |
| US2901665A (en) * | 1956-02-13 | 1959-08-25 | Rca Corp | Cathode ray tube deflection yoke |
| US3115544A (en) * | 1956-04-25 | 1963-12-24 | Hazeltine Research Inc | Color-television receivers and deflection yokes |
| DE2234122C3 (en) * | 1972-07-12 | 1982-01-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Saddle coil arrangement for the magnetic deflection of several electron beams |
| DE4109274A1 (en) * | 1991-03-21 | 1992-09-24 | Thomson Brandt Gmbh | COLORED PIPES |
| JP2004259507A (en) * | 2003-02-25 | 2004-09-16 | Mitsubishi Electric Corp | Cathode-ray tube |
-
1935
- 1935-05-24 DE DEF79419D patent/DE724550C/en not_active Expired
- 1935-10-25 DE DEF7638D patent/DE901684C/en not_active Expired
-
1936
- 1936-05-20 US US80886A patent/US2206125A/en not_active Expired - Lifetime
- 1936-05-22 GB GB14529/36A patent/GB475527A/en not_active Expired
- 1936-05-22 FR FR806673D patent/FR806673A/en not_active Expired
- 1936-08-05 US US94434A patent/US2186595A/en not_active Expired - Lifetime
- 1936-10-21 GB GB28568/36A patent/GB475539A/en not_active Expired
- 1936-10-24 FR FR47720D patent/FR47720E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB475539A (en) | 1937-11-22 |
| US2206125A (en) | 1940-07-02 |
| FR47720E (en) | 1937-06-22 |
| US2186595A (en) | 1940-01-09 |
| DE724550C (en) | 1942-10-01 |
| FR806673A (en) | 1936-12-22 |
| DE901684C (en) | 1954-01-14 |
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