GB1528311A - Multiple beam cathode ray tube arrangements - Google Patents

Multiple beam cathode ray tube arrangements

Info

Publication number
GB1528311A
GB1528311A GB17745/77A GB1774577A GB1528311A GB 1528311 A GB1528311 A GB 1528311A GB 17745/77 A GB17745/77 A GB 17745/77A GB 1774577 A GB1774577 A GB 1774577A GB 1528311 A GB1528311 A GB 1528311A
Authority
GB
United Kingdom
Prior art keywords
magnets
tube
ray tube
cathode ray
multiple beam
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
GB17745/77A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1528311A publication Critical patent/GB1528311A/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
    • H01J29/703—Static convergence systems

Landscapes

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

Abstract

1528311 Colour television tubes LICENTIA PATENT-VERWALTUNGS GmbH 28 April 1977 [15 May 1976] 17745/77 Heading H1D Wave-shaped raster line distortion adjacent the upper and lower edges of the raster in a three in-line gun colour television tube is reduced by the use of a plurality of permanent magnets 6, 7, 8 and 9 distributed around the tube in the vicinity of the screen, having their axes substantially aligned with the tube axis, and alternate magnets being oppositely polarized, and two further permanent magnets, 10 and 11, having axes disposed substantially parallel to the line scanning direction, and oppositely polarized. All the magnets may be permanently secured to the edge 5 of the deflection coil carrier 3.
GB17745/77A 1976-05-15 1977-04-28 Multiple beam cathode ray tube arrangements Expired GB1528311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2621711A DE2621711C2 (en) 1976-05-15 1976-05-15 Deflection unit for a television receiver with permanent magnets to remove geometrical errors

Publications (1)

Publication Number Publication Date
GB1528311A true GB1528311A (en) 1978-10-11

Family

ID=5978097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17745/77A Expired GB1528311A (en) 1976-05-15 1977-04-28 Multiple beam cathode ray tube arrangements

Country Status (5)

Country Link
DE (1) DE2621711C2 (en)
FR (1) FR2351552A1 (en)
GB (1) GB1528311A (en)
IT (1) IT1079210B (en)
SE (1) SE7705512L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0187964A1 (en) * 1984-12-13 1986-07-23 TDK Corporation Electromagnetic deflection-distortion corrector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542623A (en) * 1977-06-08 1979-01-10 Toshiba Corp Color picture tube of beam-index type
DE3230423A1 (en) * 1982-08-16 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Deflection unit for television picture tubes
JPH09180652A (en) * 1995-12-27 1997-07-11 Sony Corp Deflection yoke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0187964A1 (en) * 1984-12-13 1986-07-23 TDK Corporation Electromagnetic deflection-distortion corrector

Also Published As

Publication number Publication date
FR2351552B3 (en) 1980-04-30
SE7705512L (en) 1977-11-16
DE2621711B1 (en) 1978-03-16
FR2351552A1 (en) 1977-12-09
IT1079210B (en) 1985-05-08
DE2621711C2 (en) 1978-11-02
DE2621711A1 (en) 1977-11-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee