GB1318660A - Deflection yoke for a triad-type colour cathode ray tube - Google Patents

Deflection yoke for a triad-type colour cathode ray tube

Info

Publication number
GB1318660A
GB1318660A GB1998971*[A GB1998971A GB1318660A GB 1318660 A GB1318660 A GB 1318660A GB 1998971 A GB1998971 A GB 1998971A GB 1318660 A GB1318660 A GB 1318660A
Authority
GB
United Kingdom
Prior art keywords
layer
windings
turns
horizontal
pair
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
GB1998971*[A
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
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 GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1318660A publication Critical patent/GB1318660A/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
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702—Convergence correction arrangements therefor
    • 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

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

1318660 Electron beam deflecting apparatus GTE SYLVANIA Inc 10 June 1971 [10 June 1970] 19989/71 Heading H1D A deflection yoke for a colour television tube employing three electron guns in delta formation, comprises a toroidal yoke 15 on which first and second horizontal deflection windings 17 and 19 are toroidally wound and first and second vertical deflection windings 29 and 31 each comprising two toroidally wound layers with each turn 39 of the second layer supported by a pair of turns 37 of the first layer and having a diameter greater than that of the turns of the first layer. The increased diameter may be due to increased conductor diameter, which reduces the resistance, or to increased insulation thickness. Flux altering means in the form of a winding gap or short-circuited turns may be provided at 21, 23 for the horizontal windings and at 33, 35 for the vertical windings. The horizontal windings are preferably but not necessarily symmetrical and in mirror-image relationship with respect to the horizontal axis H-H<SP>1</SP>, and the vertical windings are preferably also in mirror-image relationship about both axes H-H<SP>1</SP> and V-V<SP>1</SP>. The horizontal windings are interleaved with the vertical windings and may but need not be of similar construction. The vertical deflection current is supplied to an input end 41 and passes through the second layer the end of which is connected by an external lead 43 to the pair of turns at the beginning of first layer the end of which is connected by a lead 45 to the pair of turns at the beginning of the first layer of the other winding; the pair of turns at the end of this layer is connected by lead 47 to the second layer, the other end of which is connected to earth or a fixed potential.
GB1998971*[A 1970-06-10 1971-06-10 Deflection yoke for a triad-type colour cathode ray tube Expired GB1318660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4492270A 1970-06-10 1970-06-10

Publications (1)

Publication Number Publication Date
GB1318660A true GB1318660A (en) 1973-05-31

Family

ID=21935057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1998971*[A Expired GB1318660A (en) 1970-06-10 1971-06-10 Deflection yoke for a triad-type colour cathode ray tube

Country Status (5)

Country Link
US (1) US3631533A (en)
CA (1) CA935864A (en)
DE (1) DE2128303A1 (en)
FR (1) FR2096131A5 (en)
GB (1) GB1318660A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735299A (en) * 1971-10-04 1973-05-22 Rca Corp Color television deflection yoke having reduced variation in beam trio distortion
US4232253A (en) * 1977-12-23 1980-11-04 International Business Machines Corporation Distortion correction in electromagnetic deflection yokes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925542A (en) * 1957-05-31 1960-02-16 Gen Electric Deflection and dynamic convergence system for multi-beam cathode ray tubes
US3430099A (en) * 1966-08-23 1969-02-25 Gen Electric Simplified deflection system for plural in-line beam cathode ray tube
US3548350A (en) * 1969-01-15 1970-12-15 Gen Electric Wide angle deflection yoke for producing optimally non-uniform deflection fields

Also Published As

Publication number Publication date
DE2128303A1 (en) 1971-12-16
FR2096131A5 (en) 1972-02-11
US3631533A (en) 1971-12-28
CA935864A (en) 1973-10-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees