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GB1143292A - Magnetic beam correction devices for use with colour television tubes - Google Patents

Magnetic beam correction devices for use with colour television tubes

Info

Publication number
GB1143292A
GB1143292A GB22198/66A GB2219866A GB1143292A GB 1143292 A GB1143292 A GB 1143292A GB 22198/66 A GB22198/66 A GB 22198/66A GB 2219866 A GB2219866 A GB 2219866A GB 1143292 A GB1143292 A GB 1143292A
Authority
GB
United Kingdom
Prior art keywords
magnets
pinion
support rings
cylinder
flanges
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
GB22198/66A
Inventor
Robert Richard Melone
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works 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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of GB1143292A publication Critical patent/GB1143292A/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

1,143,292. Electron beam deflecting apparatus; permanent magnets. ILLINOIS TOOL WORKS Inc. 18 May, 1966 [19 May, 1965], No. 22198/66. Headings H1D and H1P. A magnetic beam correction device in particular for the lateral shift of the blue beam in a three-beam colour television tube comprises a pair of ring magnets 160, 162 magnetized as shown. The magnets are mounted on a non- magnetic cylinder 39 by means of support rings 108, 110 and the support rings are provided with gear segments 124, 126 so that the ring magnets can be rotated together equally in opposite directions to a limited extent by means of a common pinion 170. The cylinder 39 is eccentric to a body portion 28 which seats on the neck of the tube. The body 28 has projections provided with arcuate flexible flanges 36 which carry at their outer ends pressure pads for gripping the tube neck. A pair of colour purity magnets 68, 70 is slipped over the rear portion of the body 28 and the assembly is held in position by means of the resilient locking ring 78 and a clamp 86 which act on the pressure pads at the ends of the flexible flanges 36: The pinion 170 for operating the blue shift magnets 160, 162 is supported by the bracket 54 and held in place by a retaining spring 180. The spring 180 has an extension 184 for forcing the gear segments 124, 126 into positive engagement with the pinion 170 and legs 190 for bearing down on the pinion. The support rings 108, 110 for the lateral shift magnets 160, 162 have arcuate projections 132, 134, 136, 138 for bayonet type engagement with flanges 50, 52 of the cylinder 39.
GB22198/66A 1965-05-19 1966-05-18 Magnetic beam correction devices for use with colour television tubes Expired GB1143292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US457084A US3332046A (en) 1965-05-19 1965-05-19 Blue lateral and purity magnet assembly

Publications (1)

Publication Number Publication Date
GB1143292A true GB1143292A (en) 1969-02-19

Family

ID=23815368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22198/66A Expired GB1143292A (en) 1965-05-19 1966-05-18 Magnetic beam correction devices for use with colour television tubes

Country Status (4)

Country Link
US (1) US3332046A (en)
DE (1) DE1564152B2 (en)
GB (1) GB1143292A (en)
NL (1) NL6604197A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456218A (en) * 1967-08-24 1969-07-15 Illinois Tool Works Unitary plastic retainer ring for relatively rotatable magnetic rings
US3508181A (en) * 1968-01-31 1970-04-21 Illinois Tool Works Blue lateral magnet assembly
US3512035A (en) * 1968-02-27 1970-05-12 Matsushita Electric Ind Co Ltd Convergence device for color television receiver
US3605053A (en) * 1969-08-27 1971-09-14 Tracor Convergence- and purity-adjusting device for color television picture tube
US3646669A (en) * 1969-12-10 1972-03-07 Illinois Tool Works Method of making blue lateral and purity magnets
US3624573A (en) * 1970-05-15 1971-11-30 Rca Corp Blue lateral magnet structure
US3725831A (en) * 1972-01-14 1973-04-03 Rca Corp Magnetic beam adjusting arrangements
NL160426C (en) * 1973-04-09 1979-10-15 Philips Nv MAGNETIC CORRECTION DEVICE FOR A CATHODE JET TUBE.
US4032872A (en) * 1975-10-21 1977-06-28 Rca Corporation Beam adjustment assembly for a cathode ray tube
US4245205A (en) * 1979-02-14 1981-01-13 Rca Corporation Convergence adjustment arrangement using magnetic tabs with differential motion and rotary drive
US4908591A (en) * 1989-02-07 1990-03-13 Bangor Electronics Co. Static convergence device for television picture tube
US7190893B2 (en) 2003-06-27 2007-03-13 Valeo Electrical Systems, Inc. Fluid heater with low porosity thermal mass

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568668A (en) * 1950-08-18 1951-09-18 Best Mfg Co Inc Cathode-ray tube focusing device of the permanent magnet type
US2954494A (en) * 1958-04-25 1960-09-27 Zenith Radio Corp Cathode-ray beam correction structure

Also Published As

Publication number Publication date
NL6604197A (en) 1966-11-21
DE1564152A1 (en) 1969-10-16
DE1564152B2 (en) 1970-12-10
US3332046A (en) 1967-07-18

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