HK90391A - Cathode ray tube having a magnetic focusing lens - Google Patents

Cathode ray tube having a magnetic focusing lens

Info

Publication number
HK90391A
HK90391A HK903/91A HK90391A HK90391A HK 90391 A HK90391 A HK 90391A HK 903/91 A HK903/91 A HK 903/91A HK 90391 A HK90391 A HK 90391A HK 90391 A HK90391 A HK 90391A
Authority
HK
Hong Kong
Prior art keywords
ray tube
cathode ray
focusing lens
magnetic focusing
magnetic
Prior art date
Application number
HK903/91A
Other languages
English (en)
Inventor
Aart Adrianus Van Gorkum
Broek Martinus H L M Van Den
Robert H J Fastenau
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of HK90391A publication Critical patent/HK90391A/xx

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/087—Tap water heat exchangers specially adapted therefore
    • 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
HK903/91A 1986-06-11 1991-11-14 Cathode ray tube having a magnetic focusing lens HK90391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8601512A NL8601512A (nl) 1986-06-11 1986-06-11 Kathodestraalbuis met magnetische focusseerlens.

Publications (1)

Publication Number Publication Date
HK90391A true HK90391A (en) 1991-11-22

Family

ID=19848156

Family Applications (1)

Application Number Title Priority Date Filing Date
HK903/91A HK90391A (en) 1986-06-11 1991-11-14 Cathode ray tube having a magnetic focusing lens

Country Status (8)

Country Link
US (1) US4758762A (xx)
EP (1) EP0250027B1 (xx)
JP (1) JP2628648B2 (xx)
KR (1) KR880001025A (xx)
DE (1) DE3765023D1 (xx)
HK (1) HK90391A (xx)
NL (1) NL8601512A (xx)
SG (1) SG50491G (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9021167D0 (en) * 1990-09-28 1990-11-14 Grace W R & Co Container closures and processes of making them
EP0551026B1 (en) * 1992-01-10 1997-06-04 THOMSON TUBES & DISPLAYS S.A. Focusing device with two dynamic windings for energy recovery
EP0551027B1 (en) * 1992-01-10 1997-09-17 THOMSON TUBES & DISPLAYS S.A. Magnetic focusing device
EP0551025B1 (en) * 1992-01-10 1996-08-21 THOMSON TUBES & DISPLAYS S.A. Low power consumption dynamic focusing circuit
US5382888A (en) * 1992-01-10 1995-01-17 Thomson Tubes & Displays, S.A. Focusing device with two dynamic windings for energy recovery
DE69212802T2 (de) * 1992-03-27 1997-03-20 Thomson Tubes & Displays Permanentmagnet-Fokusiersystem mit integriertem Astigmatismuskorrektor
KR100304156B1 (ko) * 1992-03-27 2001-11-30 데니스 에이취 엘 벡 일체성형의비점수차보정기를구비한영구자석집속유닛
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
JPH08212939A (ja) * 1995-02-08 1996-08-20 Mitsubishi Electric Corp Ｃｒｔおよびその解像度改善装置
US5719476A (en) * 1996-02-23 1998-02-17 David Sarnoff Research Center, Inc. Apparatus for correcting distortion of an electron beam generated spot on a cathode ray tube screen
FR2754636B1 (fr) * 1996-10-15 1998-11-27 Thomson Tubes & Displays Systeme de deviation de faisceau d'electrons pour tube a rayons catholiques monochrome
AU1313500A (en) * 1998-10-14 2000-05-01 Sony Electronics Inc. Crt beam landing spot size correction apparatus and method
JP2002352749A (ja) * 2001-05-29 2002-12-06 Hitachi Ltd 異径ネックを有する投射形ブラウン管
JP2002367539A (ja) 2001-06-08 2002-12-20 Hitachi Ltd ブラウン管
JP2003059430A (ja) 2001-08-09 2003-02-28 Hitachi Ltd 異径ネックを有する投射形陰極線管装置

Family Cites Families (9)

* 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
BE620211A (xx) * 1961-08-23
JPS4421136Y1 (xx) * 1968-08-19 1969-09-08
US3961223A (en) * 1975-03-04 1976-06-01 United Technologies Corporation Astigmatic focus correction circuit
NL7609374A (nl) * 1976-08-24 1978-02-28 Philips Nv Inrichting voor het weergeven van televisie- beelden, afbuigspoelenstelsel voor een derge- lijke inrichting en beeldbuis voorzien van een dergelijk afbuigspoelenstelsel.
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
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

Also Published As

Publication number Publication date
KR880001025A (ko) 1988-03-31
US4758762A (en) 1988-07-19
DE3765023D1 (de) 1990-10-25
JP2628648B2 (ja) 1997-07-09
NL8601512A (nl) 1988-01-04
EP0250027A1 (en) 1987-12-23
SG50491G (en) 1991-08-23
EP0250027B1 (en) 1990-09-19
JPS62296346A (ja) 1987-12-23

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)