DE60137305D1 - Kathodenstrahlröhre mit kompositkathode - Google Patents

Kathodenstrahlröhre mit kompositkathode

Info

Publication number
DE60137305D1
DE60137305D1 DE60137305T DE60137305T DE60137305D1 DE 60137305 D1 DE60137305 D1 DE 60137305D1 DE 60137305 T DE60137305 T DE 60137305T DE 60137305 T DE60137305 T DE 60137305T DE 60137305 D1 DE60137305 D1 DE 60137305D1
Authority
DE
Germany
Prior art keywords
cathode
oxide
oxides
group formed
ray tubes
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
DE60137305T
Other languages
German (de)
English (en)
Inventor
Georg F Gaertner
Der Heide Petrus A Van
Wyndham M Johnstone
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.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Intellectual Property and Standards GmbH
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 Intellectual Property and Standards GmbH filed Critical Philips Intellectual Property and Standards GmbH
Application granted granted Critical
Publication of DE60137305D1 publication Critical patent/DE60137305D1/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
DE60137305T 2000-09-19 2001-09-06 Kathodenstrahlröhre mit kompositkathode Expired - Lifetime DE60137305D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00308163 2000-09-19
PCT/EP2001/010333 WO2002025682A1 (en) 2000-09-19 2001-09-06 Cathode ray tube comprising a cathode of a composite material

Publications (1)

Publication Number Publication Date
DE60137305D1 true DE60137305D1 (de) 2009-02-26

Family

ID=8173271

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60137305T Expired - Lifetime DE60137305D1 (de) 2000-09-19 2001-09-06 Kathodenstrahlröhre mit kompositkathode

Country Status (8)

Country Link
US (1) US6833659B2 (https=)
EP (1) EP1232512B1 (https=)
JP (1) JP4949603B2 (https=)
KR (1) KR100811719B1 (https=)
CN (1) CN1227700C (https=)
AT (1) ATE420451T1 (https=)
DE (1) DE60137305D1 (https=)
WO (1) WO2002025682A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6882093B2 (en) * 2001-08-01 2005-04-19 Matsushita Electric Industrial Co., Ltd. Long-life electron tube device, electron tube cathode, and manufacturing method for the electron tube device
EP1612827A4 (en) * 2003-03-14 2006-06-14 Matsushita Electric Industrial Co Ltd INDIRECTLY HEATED CATHODE AND CATHODE RAY TUBES THEREWITH
KR100490170B1 (ko) * 2003-07-10 2005-05-16 엘지.필립스 디스플레이 주식회사 음극선관용 음극
US20050037134A1 (en) * 2003-08-12 2005-02-17 Chunghwa Picture Tubes, Ltd. Process of manufacturing micronized oxide cathode
US20060068196A1 (en) * 2004-09-24 2006-03-30 Kabushiki Kaisha Toshiba High-frequency magnetic material, producing method for the same and high-frequency magnetic device
US7786661B2 (en) * 2008-06-06 2010-08-31 General Electric Company Emissive electrode materials for electric lamps and methods of making
CN103632902B (zh) * 2013-01-10 2016-01-13 中国科学院电子学研究所 一种阴极活性发射材料的制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129867A (en) * 1978-03-31 1979-10-08 Hitachi Ltd Cathode constituent of direct heating type
JPS62165833A (ja) * 1986-01-18 1987-07-22 Mitsubishi Electric Corp 電子管用陰極
CA1270890A (en) * 1985-07-19 1990-06-26 Keiji Watanabe Cathode for electron tube
JPH0750586B2 (ja) * 1986-04-17 1995-05-31 三菱電機株式会社 電子管用陰極
NL8901076A (nl) * 1989-04-28 1990-11-16 Philips Nv Oxydekathode.
FR2667721B1 (fr) * 1990-10-05 1997-01-10 Hitachi Ltd Cathode pour tube electronique.
JP3395213B2 (ja) * 1992-09-14 2003-04-07 株式会社日立製作所 電子管陰極
JP2587570B2 (ja) * 1992-11-13 1997-03-05 株式会社ジーティシー 多結晶シリコン薄膜トランジスタおよびその製造方法
KR100294484B1 (ko) * 1993-08-24 2001-09-17 김순택 전자관용음극
JPH08321250A (ja) * 1995-05-24 1996-12-03 Hitachi Ltd 電子放射物質層を有する陰極を備えた電子管
JPH0982233A (ja) 1995-09-18 1997-03-28 Hitachi Ltd 電子放射物質層を有する陰極を備えた電子管
FR2745951B1 (fr) * 1996-03-05 1998-06-05 Thomson Csf Cathode thermoionique et son procede de fabrication
JP2876591B2 (ja) * 1996-11-29 1999-03-31 三菱電機株式会社 電子管用陰極
JPH11288658A (ja) * 1998-04-01 1999-10-19 Hitachi Ltd 酸化物陰極
TW419688B (en) * 1998-05-14 2001-01-21 Mitsubishi Electric Corp Cathod ray tube provided with an oxide cathod and process for making the same
JP2000357464A (ja) * 1999-06-14 2000-12-26 Hitachi Ltd 陰極線管

Also Published As

Publication number Publication date
JP4949603B2 (ja) 2012-06-13
KR20020053857A (ko) 2002-07-05
CN1227700C (zh) 2005-11-16
ATE420451T1 (de) 2009-01-15
JP2004510292A (ja) 2004-04-02
US6833659B2 (en) 2004-12-21
WO2002025682A1 (en) 2002-03-28
KR100811719B1 (ko) 2008-03-11
US20020074921A1 (en) 2002-06-20
EP1232512A1 (en) 2002-08-21
EP1232512B1 (en) 2009-01-07
CN1394348A (zh) 2003-01-29

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Legal Events

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8364 No opposition during term of opposition