ES425065A1 - Magnetic correction device for a cathode ray tube - Google Patents

Magnetic correction device for a cathode ray tube

Info

Publication number
ES425065A1
ES425065A1 ES425065A ES425065A ES425065A1 ES 425065 A1 ES425065 A1 ES 425065A1 ES 425065 A ES425065 A ES 425065A ES 425065 A ES425065 A ES 425065A ES 425065 A1 ES425065 A1 ES 425065A1
Authority
ES
Spain
Prior art keywords
rings
ring
support
ray tube
cathode ray
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
ES425065A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES425065A1 publication Critical patent/ES425065A1/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)
  • Electron Sources, Ion Sources (AREA)

Abstract

Magnetic correction device for influencing the electron beam paths produced in a cathode ray tube, the device comprising at least one support made of a non-magnetic material, fixing means to fix the support to the neck of a cathode ray tube, and at least one pair of coaxial rings that have magnetic poles distributed around their peripheries, whose rings are mounted on the support and are rotatable about their geometric axes in opposite relative directions, characterized in that one of the two rings (43) of one pair has an inner diameter that is greater than the outer diameter of the other ring (45), the smaller ring (45) being mounted inside the larger ring (43), while the (outer) ring (43) has teeth (49) on its inner periphery and the inner ring (45) has teeth (51) on its outer periphery, being located in the space between the two rings (43, 45) and engaging with said teeth (49, 51) at least one pinion (53) that is rotatable about an axis (55) fixed to the support (47) and that extends parallel to the geometric axis of the pair of rings. (Machine-translation by Google Translate, not legally binding)
ES425065A 1973-04-09 1974-04-06 Magnetic correction device for a cathode ray tube Expired ES425065A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7304887.A NL160426C (en) 1973-04-09 1973-04-09 MAGNETIC CORRECTION DEVICE FOR A CATHODE JET TUBE.

Publications (1)

Publication Number Publication Date
ES425065A1 true ES425065A1 (en) 1976-06-01

Family

ID=19818595

Family Applications (1)

Application Number Title Priority Date Filing Date
ES425065A Expired ES425065A1 (en) 1973-04-09 1974-04-06 Magnetic correction device for a cathode ray tube

Country Status (14)

Country Link
US (1) US3902145A (en)
JP (1) JPS5531985B2 (en)
AU (1) AU6767074A (en)
BE (1) BE813434A (en)
BR (1) BR7402789D0 (en)
CA (1) CA993028A (en)
DE (1) DE2416509C3 (en)
ES (1) ES425065A1 (en)
FR (1) FR2224869B1 (en)
GB (1) GB1466732A (en)
IT (1) IT1011709B (en)
NL (1) NL160426C (en)
SE (1) SE386008B (en)
ZA (1) ZA742104B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032872A (en) * 1975-10-21 1977-06-28 Rca Corporation Beam adjustment assembly for a cathode ray tube
US4091347A (en) * 1976-03-17 1978-05-23 Rca Corporation Convergence apparatus for in-line beams
US4050042A (en) * 1976-10-13 1977-09-20 Tracor, Inc. Static convergence devices for color television picture tubes
DE2752252C2 (en) * 1977-11-23 1987-04-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Method for producing a magnetic correction ring for television picture tubes
EP0042020B1 (en) * 1980-06-13 1984-05-16 International Business Machines Corporation Convergence unit for cathode-ray tube
NL8100785A (en) * 1981-02-18 1982-09-16 Philips Nv DEVICE FOR DISPLAYING IMAGES.
US4467302A (en) * 1983-03-24 1984-08-21 Sperry Corporation CRT Color purity adjustment apparatus
JPH0538253U (en) * 1991-10-25 1993-05-25 ナイルス部品株式会社 Window glass opening and closing control device
KR0160847B1 (en) * 1995-02-20 1998-12-01 구자홍 Magnet structural reform for color cathode ray tube
EP1162642A1 (en) * 2000-06-07 2001-12-12 Matsushita Display Devices (Germany) GmbH Multipole unit for a color picture tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL147275B (en) * 1948-07-01 Plessey Uk Limited ELECTRIC TORQUE SWITCH FOR PUSH-BUTTON CONTROL.
US2801356A (en) * 1956-01-23 1957-07-30 Heppner Mfg Co Focus device
US3332046A (en) * 1965-05-19 1967-07-18 Illinois Tool Works Blue lateral and purity magnet assembly
US3341729A (en) * 1966-01-26 1967-09-12 Illinois Tool Works Device for laterally shifting one of a plurality of electron beams relative to the remainder in a color television tube
US3605053A (en) * 1969-08-27 1971-09-14 Tracor Convergence- and purity-adjusting device for color television picture tube

Also Published As

Publication number Publication date
ZA742104B (en) 1975-11-26
SE386008B (en) 1976-07-26
DE2416509A1 (en) 1974-10-24
US3902145A (en) 1975-08-26
BE813434A (en) 1974-10-08
NL160426C (en) 1979-10-15
JPS5012964A (en) 1975-02-10
JPS5531985B2 (en) 1980-08-22
BR7402789D0 (en) 1974-11-19
NL7304887A (en) 1974-10-11
IT1011709B (en) 1977-02-10
GB1466732A (en) 1977-03-09
FR2224869B1 (en) 1978-08-11
DE2416509C3 (en) 1979-04-26
CA993028A (en) 1976-07-13
DE2416509B2 (en) 1978-08-24
FR2224869A1 (en) 1974-10-31
AU6767074A (en) 1975-10-09
NL160426B (en) 1979-05-15

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