DE3762559D1 - Kathodenstrahlroehre mit magnetischer fokussierungslinse. - Google Patents

Kathodenstrahlroehre mit magnetischer fokussierungslinse.

Info

Publication number
DE3762559D1
DE3762559D1 DE8787201083T DE3762559T DE3762559D1 DE 3762559 D1 DE3762559 D1 DE 3762559D1 DE 8787201083 T DE8787201083 T DE 8787201083T DE 3762559 T DE3762559 T DE 3762559T DE 3762559 D1 DE3762559 D1 DE 3762559D1
Authority
DE
Germany
Prior art keywords
cathode ray
magnetic focusing
focusing lens
ray tubes
neck
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 - Lifetime
Application number
DE8787201083T
Other languages
English (en)
Inventor
Arne Lex Duwaer
Alphen Willem Meijndert Van
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
Application granted granted Critical
Publication of DE3762559D1 publication Critical patent/DE3762559D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/66—Magnetic lenses using electromagnetic means only
    • 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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Details Of Television Scanning (AREA)
DE8787201083T 1986-06-11 1987-06-05 Kathodenstrahlroehre mit magnetischer fokussierungslinse. Expired - Lifetime DE3762559D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8601511A NL8601511A (nl) 1986-06-11 1986-06-11 Kathodestraalbuis met magnetische focusseerlens.

Publications (1)

Publication Number Publication Date
DE3762559D1 true DE3762559D1 (de) 1990-06-07

Family

ID=19848155

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787201083T Expired - Lifetime DE3762559D1 (de) 1986-06-11 1987-06-05 Kathodenstrahlroehre mit magnetischer fokussierungslinse.

Country Status (8)

Country Link
US (1) US5117152A (de)
EP (1) EP0249294B1 (de)
JP (1) JPS6345742A (de)
KR (1) KR880001024A (de)
CN (1) CN1032943C (de)
AT (1) ATE52387T1 (de)
DE (1) DE3762559D1 (de)
NL (1) NL8601511A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683386B1 (fr) * 1991-11-05 1993-12-31 Thomson Tubes Displays Sa Dispositif de focalisation magnetique pour tube a rayons cathodiques.
EP0551025B1 (de) * 1992-01-10 1996-08-21 THOMSON TUBES & DISPLAYS S.A. Dynamische Fokussierungsschaltung mit geringem Energieverbrauch
US5382888A (en) * 1992-01-10 1995-01-17 Thomson Tubes & Displays, S.A. Focusing device with two dynamic windings for energy recovery
EP0551027B1 (de) * 1992-01-10 1997-09-17 THOMSON TUBES & DISPLAYS S.A. Magnetische Fokussierungsvorrichtung
SG92590A1 (en) * 1992-03-27 2002-11-19 Thomson Tubes & Displays Permanent magnet focus unit wihh integral astigmatism corrector
DE4422440A1 (de) * 1994-06-29 1996-01-04 Osaulenko Nikolaj Fedorowitsc Vorrichtung zur Aufzeichnung und Wiedergabe hochfrequenter Signale
US5489826A (en) * 1994-08-08 1996-02-06 Thomson Consumer Electronics, Inc. Focus coil current generator for a cathode ray tube
US5557164A (en) * 1995-03-15 1996-09-17 Chunghwa Picture Tubes, Ltd. Cathode ray tube with misconvergence compensation
US6232709B1 (en) 1998-10-23 2001-05-15 Michael W. Retsky Method and apparatus for deflecting and focusing a charged particle stream
US5825123A (en) * 1996-03-28 1998-10-20 Retsky; Michael W. Method and apparatus for deflecting a charged particle stream
JPH11281799A (ja) * 1998-03-27 1999-10-15 Ebara Corp 電子線照射装置
WO2002091418A1 (en) * 2001-05-09 2002-11-14 Koninklijke Philips Electronics N.V. Deflection system for cathode ray tubes

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891119C (de) * 1940-07-09 1953-09-24 Telefunken Gmbh Magnetische Elektronenlinse
GB731180A (en) * 1952-11-20 1955-06-01 Cinema Television Ltd Improvements in or relating to cathode ray tube apparatus
US2994803A (en) * 1958-06-26 1961-08-01 Edgerton Germeshausen And Grie Focusing field correction apparatus
US3150284A (en) * 1962-09-17 1964-09-22 Philco Corp Apparatus for use in conjunction with a cathode ray tube to reduce defocusing and astigmatism of an electron beam thereof
US3504211A (en) * 1965-05-12 1970-03-31 Hitachi Ltd Electron beam control device for use with a cathode ray tube for dynamic correction of electron beam astigmatism and defocusing
US3800176A (en) * 1972-01-14 1974-03-26 Rca Corp Self-converging color image display system
US3984723A (en) * 1974-10-04 1976-10-05 Rca Corporation Display system utilizing beam shape correction
DE2752598C3 (de) * 1977-11-25 1981-10-15 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zum Betrieb einer elektromagnetischen fokussierenden elektronen-optischen Linsenanordnung und Linsenanordnung hierfür
NL7907717A (nl) * 1979-10-19 1981-04-22 Philips Nv Inrichting voor het weergeven van gekleurde beelden.
GB2085698B (en) * 1980-10-02 1984-08-15 Secr Defence Stigmator for cathode ray tube
NL8104735A (nl) * 1980-12-05 1982-07-01 Philips Nv Kathodestraalbuis met een afbuigeenheid met een samenstel van permanente magneten dat een statisch multipoolveld opwekt voor het simuleren van een modulatie van het dynamische afbuigveld.
NL8100142A (nl) * 1981-01-14 1982-08-02 Philips Nv Inrichting voor het weergeven van beelden met behulp van een kathodestraalbuis.
NL8100785A (nl) * 1981-02-18 1982-09-16 Philips Nv Inrichting voor het weergeven van beelden.
JPH0736623B2 (ja) * 1981-04-30 1995-04-19 株式会社日立製作所 インラインカラ−受像管装置
JPS5830294A (ja) * 1981-08-18 1983-02-22 Mitsubishi Electric Corp カラ−陰極線管装置
US4670726A (en) * 1984-12-20 1987-06-02 Hitachi Metals, Ltd. Convergence device for electron beams in color picture tube
US4654616A (en) * 1985-09-30 1987-03-31 Rca Corporation Blue bow correction for CRT raster

Also Published As

Publication number Publication date
US5117152A (en) 1992-05-26
ATE52387T1 (de) 1990-05-15
EP0249294A1 (de) 1987-12-16
JPS6345742A (ja) 1988-02-26
CN1032943C (zh) 1996-10-02
NL8601511A (nl) 1988-01-04
EP0249294B1 (de) 1990-05-02
KR880001024A (ko) 1988-03-31
CN87104149A (zh) 1987-12-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee