DE60217237D1 - Kathodenbeschichtung für thermionische Kathoden in Entladungslampen - Google Patents

Kathodenbeschichtung für thermionische Kathoden in Entladungslampen

Info

Publication number
DE60217237D1
DE60217237D1 DE60217237T DE60217237T DE60217237D1 DE 60217237 D1 DE60217237 D1 DE 60217237D1 DE 60217237 T DE60217237 T DE 60217237T DE 60217237 T DE60217237 T DE 60217237T DE 60217237 D1 DE60217237 D1 DE 60217237D1
Authority
DE
Germany
Prior art keywords
discharge lamps
cathode coating
thermionic cathodes
thermionic
cathodes
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
DE60217237T
Other languages
English (en)
Other versions
DE60217237T2 (de
Inventor
John-W Shaffer
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.)
Osram Sylvania Inc
Original Assignee
Osram Sylvania Inc
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 Osram Sylvania Inc filed Critical Osram Sylvania Inc
Publication of DE60217237D1 publication Critical patent/DE60217237D1/de
Application granted granted Critical
Publication of DE60217237T2 publication Critical patent/DE60217237T2/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
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/09—Hollow cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
    • 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
DE60217237T 2001-08-27 2002-06-24 Kathodenbeschichtung für thermionische Kathoden in Entladungslampen Expired - Lifetime DE60217237T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US940207 2001-08-27
US09/940,207 US6603250B2 (en) 2001-08-27 2001-08-27 Cathode coating for thermionic arc discharge lamp cathodes

Publications (2)

Publication Number Publication Date
DE60217237D1 true DE60217237D1 (de) 2007-02-15
DE60217237T2 DE60217237T2 (de) 2007-05-31

Family

ID=25474421

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60217237T Expired - Lifetime DE60217237T2 (de) 2001-08-27 2002-06-24 Kathodenbeschichtung für thermionische Kathoden in Entladungslampen

Country Status (8)

Country Link
US (1) US6603250B2 (de)
EP (1) EP1288997B1 (de)
JP (1) JP4681202B2 (de)
KR (1) KR20030019090A (de)
CN (1) CN1407579A (de)
CA (1) CA2390675A1 (de)
DE (1) DE60217237T2 (de)
TW (1) TW586134B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7786661B2 (en) * 2008-06-06 2010-08-31 General Electric Company Emissive electrode materials for electric lamps and methods of making
CN102576645A (zh) * 2009-09-17 2012-07-11 欧司朗股份有限公司 低压放电灯
US8134294B2 (en) 2010-05-25 2012-03-13 General Electric Company Low pressure discharge lamps with coated inner wires for improved lumen maintenance
JP2014072113A (ja) * 2012-10-01 2014-04-21 Hitachi Appliances Inc 蛍光ランプ及びこの蛍光ランプを用いた点灯装置
CN103956312A (zh) * 2014-04-18 2014-07-30 北京大学 一种场发射电子源发射体表面涂层处理装置及其处理方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519027A (de) * 1952-04-09
US2963450A (en) * 1958-03-17 1960-12-06 Interlectric Corp Filament coating composition
FR2390825A1 (fr) * 1977-05-13 1978-12-08 Thomson Csf Cathode thermo-ionique a grille incorporee, son procede de fabrication et tube electronique comportant une telle cathode
JPS5949131A (ja) * 1982-09-13 1984-03-21 Mitsubishi Electric Corp 電子管陰極
NL8803047A (nl) * 1988-12-13 1990-07-02 Philips Nv Oxydekathode.
JPH0389443A (ja) * 1989-09-01 1991-04-15 Toshiba Lighting & Technol Corp 電子放射性物質およびこれを用いた低圧放電灯
JP3074651B2 (ja) * 1990-11-30 2000-08-07 東芝ライテック株式会社 蛍光ランプ
US5744905A (en) * 1994-12-23 1998-04-28 Philips Electronics North America Corporation Emission materials for discharge lamps and method for manufacturing electrode structures with such materials
JPH1050251A (ja) * 1996-07-31 1998-02-20 Toshiba Lighting & Technol Corp 蛍光ランプ、蛍光ランプ装置および照明装置

Also Published As

Publication number Publication date
CN1407579A (zh) 2003-04-02
TW586134B (en) 2004-05-01
CA2390675A1 (en) 2003-02-27
US6603250B2 (en) 2003-08-05
JP2003151490A (ja) 2003-05-23
JP4681202B2 (ja) 2011-05-11
US20030048058A1 (en) 2003-03-13
EP1288997A1 (de) 2003-03-05
KR20030019090A (ko) 2003-03-06
DE60217237T2 (de) 2007-05-31
EP1288997B1 (de) 2007-01-03

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