US2882446A - Electromagnetic deflection system - Google Patents
Electromagnetic deflection system Download PDFInfo
- Publication number
- US2882446A US2882446A US528690A US52869055A US2882446A US 2882446 A US2882446 A US 2882446A US 528690 A US528690 A US 528690A US 52869055 A US52869055 A US 52869055A US 2882446 A US2882446 A US 2882446A
- Authority
- US
- United States
- Prior art keywords
- coils
- deflection system
- coil
- core
- deflection
- 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 - Lifetime
Links
Images
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
Definitions
- EI.ECTROIIAGNETIC DEFLEC'I'ION SYSTEM INVENTORS FETE JOHANNES H ⁇ IERTUS.MNSSE JGMN ANTON VERHOEF 4 AGENT llnited S;Atates Patent Peter Johannes Hubertus hassen and Jol1an Anton Verhoef, Elndhoven, Netherlands, assrlgnors, by mesne asslgnments, to North Amerlcan Philips Company, Inc. New York, N.Y. a corporatlon of Delaware --'Ihia inventioix relates to defiection coil systems for electrical apparati 1s.
- ic e flection 'systemlfor the"hofilzntal deflection consists of two' saddlesh'aped coil halves 7 and 8, the operative partS of which"extend at rightn'gles fo the plane of the draw ing at 9, 10, 11 and 12 and are arranged within the nnular core 5.
- the ends of seid operative parts of each coil-half are intereolanectegl'by parts 13 and 14.
- the first and the third coils are diametrically opposed and co'nnected in parallel with one 'another, and the second and fourth coils are also diametrically' opposed and connected in parallel with one another, while the two parallel combinations are connected in series' with one another. are employed in television systems, in which use is made of coils wound in difierent senses, which entails additional expense during the manufacture.
- lt is an objectof the invention to provide an electromagnetic deflection system in which this disadvantage is obviated.
- lt is a further object of the invention to provide-a deflection system wherein the polarity of the stray voltages which are induced in each coil by the coils producing: deflection in the perpendicular direction is such as to prevent difficulties with respect to insulation of the coils from the core of the system.
- the system in accordance with the invention is char- Deflection systems of this kind the same manner, whereas the second and the third coils being provilded on the core in the opposite manner to the first and fourth coils.
- Fig. 1 shows an embodiment of a system according 10 the invention for deflection in two directions
- Fig. 5 shows an electrie clrcuit ararngement lncluding the system 01 the invention and the lnterconnectionr between the different parts of the deflection system.
- a cyllndrical annular core 5 made of ferromagnetlc material, for example, the terromagnetic ferrltes, which core usually conslsts of two Parts in order to enable coils to be mounted tbereon.
- Fig. l. only the glass wall 6 o! the tube neck is shown.
- the coil: l. and 3 are mounted diametrically oppodite one another.
- the orlenttion of the colls 2 and 3 is also the same butthey'are rptatedthrotxgh relative to the di ls 1 and 4, so tha t the ends 9x atartlng' turns of the coils 2 and 3altuated in the bottom la'yer a re'at the rightband xldelnFl'g. 4.
- the colls 1 and 3 are oonnected in parallel with one another, as hasbeen nrexitloit'ed abave, in thatthe ends thereof situated in the bottom layen on the one hand amlthd ende sltuated in latented Apr. 14, 1959 A
Landscapes
- Details Of Television Scanning (AREA)
- Particle Accelerators (AREA)
- Electron Beam Exposure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL331035X | 1954-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2882446A true US2882446A (en) | 1959-04-14 |
Family
ID=19784370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US528690A Expired - Lifetime US2882446A (en) | 1954-09-01 | 1955-08-16 | Electromagnetic deflection system |
Country Status (7)
Country | Link |
---|---|
US (1) | US2882446A (xx) |
BE (1) | BE540954A (xx) |
CH (1) | CH331035A (xx) |
DE (1) | DE955535C (xx) |
FR (1) | FR1135953A (xx) |
GB (1) | GB818563A (xx) |
NL (1) | NL90079C (xx) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3974421A (en) * | 1973-11-09 | 1976-08-10 | U.S. Philips Corporation | Television deflection coil |
US4042801A (en) * | 1974-08-31 | 1977-08-16 | British Aircraft Corporation Limited | Electron beam apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE633269A (xx) * | 1962-06-11 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428947A (en) * | 1945-01-31 | 1947-10-14 | Rca Corp | Deflection device for cathode-ray tubes |
US2598303A (en) * | 1949-11-17 | 1952-05-27 | Int Standard Electric Corp | Deflection-coil arrangement in cathode-ray tubes |
GB709827A (en) * | 1951-09-11 | 1954-06-02 | Standard Telephones Cables Ltd | Improvements in or relating to deflection systems for cathode ray tubes |
US2799798A (en) * | 1953-05-29 | 1957-07-16 | Rca Corp | Deflection yokes |
-
0
- BE BE540954D patent/BE540954A/xx unknown
- NL NL90079D patent/NL90079C/xx active
-
1955
- 1955-08-16 US US528690A patent/US2882446A/en not_active Expired - Lifetime
- 1955-08-28 DE DEN11111A patent/DE955535C/de not_active Expired
- 1955-08-29 GB GB24723/55A patent/GB818563A/en not_active Expired
- 1955-08-30 CH CH331035D patent/CH331035A/de unknown
- 1955-08-31 FR FR1135953D patent/FR1135953A/fr not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428947A (en) * | 1945-01-31 | 1947-10-14 | Rca Corp | Deflection device for cathode-ray tubes |
US2598303A (en) * | 1949-11-17 | 1952-05-27 | Int Standard Electric Corp | Deflection-coil arrangement in cathode-ray tubes |
GB709827A (en) * | 1951-09-11 | 1954-06-02 | Standard Telephones Cables Ltd | Improvements in or relating to deflection systems for cathode ray tubes |
US2799798A (en) * | 1953-05-29 | 1957-07-16 | Rca Corp | Deflection yokes |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3974421A (en) * | 1973-11-09 | 1976-08-10 | U.S. Philips Corporation | Television deflection coil |
US4042801A (en) * | 1974-08-31 | 1977-08-16 | British Aircraft Corporation Limited | Electron beam apparatus |
Also Published As
Publication number | Publication date |
---|---|
NL90079C (xx) | |
FR1135953A (fr) | 1957-05-07 |
DE955535C (de) | 1957-01-03 |
CH331035A (de) | 1958-06-30 |
GB818563A (en) | 1959-08-19 |
BE540954A (xx) |
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