DE69212802D1 - Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor - Google Patents

Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor

Info

Publication number
DE69212802D1
DE69212802D1 DE69212802T DE69212802T DE69212802D1 DE 69212802 D1 DE69212802 D1 DE 69212802D1 DE 69212802 T DE69212802 T DE 69212802T DE 69212802 T DE69212802 T DE 69212802T DE 69212802 D1 DE69212802 D1 DE 69212802D1
Authority
DE
Germany
Prior art keywords
permanent magnet
focusing system
astigmatism corrector
magnet focusing
integrated
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 - Fee Related
Application number
DE69212802T
Other languages
English (en)
Other versions
DE69212802T2 (de
Inventor
Jean Marc Perreaut
Didier Thibaudin
Bruno Roussel
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.)
Thomson Tubes and Displays SA
Original Assignee
Thomson Tubes and Displays SA
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 Thomson Tubes and Displays SA filed Critical Thomson Tubes and Displays SA
Application granted granted Critical
Publication of DE69212802D1 publication Critical patent/DE69212802D1/de
Publication of DE69212802T2 publication Critical patent/DE69212802T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01J29/56—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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic 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
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices
DE69212802T 1992-03-27 1992-03-27 Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor Expired - Fee Related DE69212802T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92400871A EP0562200B1 (de) 1992-03-27 1992-03-27 Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor
SG9602073A SG92590A1 (en) 1992-03-27 1992-03-27 Permanent magnet focus unit wihh integral astigmatism corrector

Publications (2)

Publication Number Publication Date
DE69212802D1 true DE69212802D1 (de) 1996-09-19
DE69212802T2 DE69212802T2 (de) 1997-03-20

Family

ID=27806544

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69212802T Expired - Fee Related DE69212802T2 (de) 1992-03-27 1992-03-27 Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor

Country Status (5)

Country Link
US (1) US5469017A (de)
EP (1) EP0562200B1 (de)
JP (1) JP3475961B2 (de)
DE (1) DE69212802T2 (de)
SG (1) SG92590A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100188920B1 (ko) * 1994-06-30 1999-06-01 김광호 편향요크의 누설전자파 차폐장치
WO1996023316A1 (en) * 1995-01-24 1996-08-01 International Business Machines Corporation Raster demodulation apparatus and method
GB2297422A (en) * 1995-01-24 1996-07-31 Ibm Raster demodulation
FR2754636B1 (fr) * 1996-10-15 1998-11-27 Thomson Tubes & Displays Systeme de deviation de faisceau d'electrons pour tube a rayons catholiques monochrome
US7328705B2 (en) * 2003-03-10 2008-02-12 Mark Abramson Dental appliance for improving airflow through nasal-pharyngeal airway
GB2425842A (en) * 2005-05-05 2006-11-08 Plant Bioscience Ltd Magnetic resonance sensor with rotatable magnetic rods placed around the sample
JP2017204499A (ja) * 2016-05-09 2017-11-16 株式会社アドバンテスト マルチカラム荷電粒子ビーム露光装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758547C (de) * 1939-02-11 1953-05-26 Telefunken Gmbh Magnetische Elektronenlinse
US2372443A (en) * 1942-04-22 1945-03-27 Rca Corp Correction of electromagnetic lenses
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve
US2729748A (en) * 1950-08-17 1956-01-03 High Voltage Engineering Corp Apparatus for sterilizing foods, drugs and other substances by scanning action of high-energy electrons
US2718606A (en) * 1952-08-02 1955-09-20 Gen Electric Combination electromagnet-permanent magnet focusing devices
US2822528A (en) * 1954-10-15 1958-02-04 Philips Corp Premagnetized inductive device
BE620211A (de) * 1961-08-23
US3296570A (en) * 1963-09-23 1967-01-03 Mitsubishi Electric Corp Device for correcting distortion of deflection in television receiver
US3371206A (en) * 1964-02-04 1968-02-27 Jeol Ltd Electron beam apparatus having compensating means for triangular beam distortion
JPS55155448A (en) * 1979-05-21 1980-12-03 Hitachi Metals Ltd Focus magnet
GB2085698B (en) * 1980-10-02 1984-08-15 Secr Defence Stigmator for cathode ray tube
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
JPS57199153A (en) * 1981-06-03 1982-12-07 Sony Corp Cathode-ray tube
JPS61140031A (ja) * 1984-12-13 1986-06-27 Tdk Corp 電磁偏向歪補正装置
NL8601512A (nl) * 1986-06-11 1988-01-04 Philips Nv Kathodestraalbuis met magnetische focusseerlens.
NL8601511A (nl) * 1986-06-11 1988-01-04 Philips Nv Kathodestraalbuis met magnetische focusseerlens.
FR2606550B1 (fr) * 1986-11-12 1989-01-13 Videocolor Procede et dispositif pour le reglage de la convergence statique et/ou de la purete d'un tube de television en couleurs
US4758813A (en) * 1987-06-24 1988-07-19 Field Effects, Inc. Cylindrical NMR bias magnet apparatus employing permanent magnets and methods therefor
KR920001582Y1 (ko) * 1989-12-23 1992-03-05 삼성전관 주식회사 편향요크
US5113162A (en) * 1991-05-23 1992-05-12 Hitachi Metals, Ltd. Focus magnet with separate static and dynamic control coils
DE19544279C1 (de) * 1995-11-28 1997-01-16 Schulte Elektrotech Elektrischer Schalter

Also Published As

Publication number Publication date
US5469017A (en) 1995-11-21
EP0562200A1 (de) 1993-09-29
DE69212802T2 (de) 1997-03-20
EP0562200B1 (de) 1996-08-14
SG92590A1 (en) 2002-11-19
JPH0644923A (ja) 1994-02-18
JP3475961B2 (ja) 2003-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee