GB799426A - Electromagnetic deflecting means for cathode ray tubes - Google Patents

Electromagnetic deflecting means for cathode ray tubes

Info

Publication number
GB799426A
GB799426A GB1432/55A GB143255A GB799426A GB 799426 A GB799426 A GB 799426A GB 1432/55 A GB1432/55 A GB 1432/55A GB 143255 A GB143255 A GB 143255A GB 799426 A GB799426 A GB 799426A
Authority
GB
United Kingdom
Prior art keywords
varying
turns
coils
jan
conductors
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
Application number
GB1432/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CT D ETUDES ET DE DEVELOPMENTS
Original Assignee
CT D ETUDES ET DE DEVELOPMENTS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CT D ETUDES ET DE DEVELOPMENTS filed Critical CT D ETUDES ET DE DEVELOPMENTS
Publication of GB799426A publication Critical patent/GB799426A/en
Expired legal-status Critical Current

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
    • H01J29/768—Deflecting by magnetic fields only using printed windings

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Details Of Television Scanning (AREA)

Abstract

799,426. Electric coils. CENTRE D'ETUDES ET DE DEVELOPPEMENTS DE L'ELECTRONIQUE, C.E.D.L. Jan. 17, 1955 [Jan. 15, 1954], No. 1432/55. Class 35. [Also in Group XL (a)] A deflecting system for a cathode-ray tube consists of a pair of spiral rectangular coils, Fig. 7, printed by a photographic process on an insulating sheet 20. The sheet is wrapped around the neck of the tube. The coils are oppositely wound and connected together in series, the circumferential distribution of the turns and their axial lengths varying as a trigonometrical function, e.g. the sine or cosine, of the angle of deflection of the electron beam from the orthogonal plane. The arcuate parts 21 of the turns vary in width so that the potential drop across them is constant. A number of printed sheets may be piled together C, Fig. 8, those printed according to pattern A alternating with those printed according to pattern B. The variation in the turn distribution is obtained in Fig. 7 by varying the widths of the conductors. In other embodiments, the variation is obtained by varying the number of conductors in planes parallel to the orthogonal plane, or by varying the number and thickness of the turns in elementary peripheral portions of the circumference.
GB1432/55A 1954-01-15 1955-01-17 Electromagnetic deflecting means for cathode ray tubes Expired GB799426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005653X 1954-01-15

Publications (1)

Publication Number Publication Date
GB799426A true GB799426A (en) 1958-08-06

Family

ID=9564994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1432/55A Expired GB799426A (en) 1954-01-15 1955-01-17 Electromagnetic deflecting means for cathode ray tubes

Country Status (5)

Country Link
US (1) US2830212A (en)
BE (1) BE534604A (en)
DE (1) DE1005653B (en)
FR (1) FR1098227A (en)
GB (1) GB799426A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094649A (en) * 1955-08-23 1963-06-18 Hazeltine Research Inc Magnetic deflection yokes
US3139566A (en) * 1955-08-25 1964-06-30 Hazeltine Research Inc Construction of magnetic deflection yokes and the like
US3234632A (en) * 1955-08-25 1966-02-15 Hazeltine Research Inc Method of manufacturing magnetic deflection yokes
US3118092A (en) * 1956-01-11 1964-01-14 Hazeltine Research Inc Magnetic deflection coils and yokes
US3515979A (en) * 1957-11-04 1970-06-02 Perkin Elmer Corp Magnetic field control apparatus
US3205391A (en) * 1957-11-18 1965-09-07 Multi Tron Lab Inc Negative-lens type deflection magnifying means for electron beam in cathode ray tubes
DE1076828C2 (en) * 1958-05-21 1974-01-03 ARRANGEMENT FOR THE SIMULTANEOUS DEFLECTION OF SEVERAL ELECTRON BEAMS IN A CATHODE TUBE
US3111609A (en) * 1959-03-16 1963-11-19 Gen Electric Deflection yoke and method of making
US3140432A (en) * 1959-12-23 1964-07-07 Matsushita Electric Ind Co Ltd Deflecting coils for cathode ray tubes
US3287630A (en) * 1964-03-02 1966-11-22 Varian Associates Apparatus for improving the uniformity of magnetic fields
GB1178234A (en) * 1966-02-26 1970-01-21 Emi Ltd Improvements in or relating to scanning coils.
US3387242A (en) * 1966-06-22 1968-06-04 Stromberg Carlson Corp Electromagnetic deflection winding configuration
US3569823A (en) * 1968-10-18 1971-03-09 Perkin Elmer Corp Nuclear magnetic resonance apparatus
GB1268023A (en) * 1970-02-20 1972-03-22 Marconi Co Ltd Improvements in or relating to printed circuit magnetic field coils
US3717835A (en) * 1970-02-24 1973-02-20 W Roadstrum Electrical coil
GB1326214A (en) * 1970-05-14 1973-08-08 Marconi Co Ltd Cathoderay tube apparatus
DE2107770C3 (en) * 1971-02-18 1973-11-29 Hermann Prof. Dr. 6300 Giessen Wollnik Coil arrangement for adjustment and correction elements for electro-magnetic influencing of bundles in charged particles, especially for sector field lenses in mass spectrometers
US3971126A (en) * 1974-08-05 1976-07-27 Gte Laboratories Incorporated Method of fabricating magnetic field drive coils for field accessed cylindrical domain memories
DE2520934C3 (en) * 1975-05-10 1982-07-08 Blaupunkt-Werke Gmbh, 3200 Hildesheim Printed coil
DE2830732A1 (en) * 1978-07-13 1980-01-31 Bosch Gmbh Robert Printed circuit coil deposited as flat spiral - has fixed gap between turns along radius varying in sections
US4398149A (en) * 1981-02-02 1983-08-09 Varian Associates, Inc. NMR Probe coil system
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
NZ207264A (en) * 1984-02-23 1988-10-28 New Zealand Dev Finance Flexible printed circuit coil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148398A (en) * 1934-10-24 1939-02-21 Emi Ltd Coil for producing a magnetic field of approximately uniform flux density for use, for example, with cathode ray tubes
US2237651A (en) * 1937-04-12 1941-04-08 Gen Electric Electronic device
US2395736A (en) * 1944-05-30 1946-02-26 Rca Corp Deflecting coils and yoke and method of manufacturing same
US2461230A (en) * 1946-09-04 1949-02-08 Rca Corp Deflecting coil
NL72993C (en) * 1948-08-10
NL149134B (en) * 1949-10-04 Snam Progetti PROCESS FOR THE PREPARATION OF AMMONIUM AND ALKALINE METAL PYROSULPHATES.

Also Published As

Publication number Publication date
BE534604A (en)
DE1005653B (en) 1957-04-04
US2830212A (en) 1958-04-08
FR1098227A (en) 1955-07-20

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