DE69105103T2 - Niederdruckentladungslampe. - Google Patents

Niederdruckentladungslampe.

Info

Publication number
DE69105103T2
DE69105103T2 DE69105103T DE69105103T DE69105103T2 DE 69105103 T2 DE69105103 T2 DE 69105103T2 DE 69105103 T DE69105103 T DE 69105103T DE 69105103 T DE69105103 T DE 69105103T DE 69105103 T2 DE69105103 T2 DE 69105103T2
Authority
DE
Germany
Prior art keywords
low pressure
discharge lamp
pressure discharge
lamp
low
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
DE69105103T
Other languages
English (en)
Other versions
DE69105103D1 (de
Inventor
Efim Goldburt
Wim Hellebrekers
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 DE69105103D1 publication Critical patent/DE69105103D1/de
Publication of DE69105103T2 publication Critical patent/DE69105103T2/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
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/022—Manufacture of electrodes or electrode systems of cold 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/76—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only
    • H01J61/78—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only with cold cathode; with cathode heated only by discharge, e.g. high-tension lamp for advertising

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Powder Metallurgy (AREA)
DE69105103T 1990-12-04 1991-11-27 Niederdruckentladungslampe. Expired - Fee Related DE69105103T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/624,387 US5138224A (en) 1990-12-04 1990-12-04 Fluorescent low pressure discharge lamp having sintered electrodes

Publications (2)

Publication Number Publication Date
DE69105103D1 DE69105103D1 (de) 1994-12-15
DE69105103T2 true DE69105103T2 (de) 1995-05-24

Family

ID=24501813

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69105103T Expired - Fee Related DE69105103T2 (de) 1990-12-04 1991-11-27 Niederdruckentladungslampe.

Country Status (6)

Country Link
US (1) US5138224A (de)
EP (1) EP0489463B1 (de)
JP (1) JP2993789B2 (de)
CN (1) CN1031850C (de)
DE (1) DE69105103T2 (de)
HU (1) HU206787B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5585694A (en) * 1990-12-04 1996-12-17 North American Philips Corporation Low pressure discharge lamp having sintered "cold cathode" discharge electrodes
JP3220472B2 (ja) * 1991-05-16 2001-10-22 ウエスト電気株式会社 冷陰極蛍光放電管
CA2103692A1 (en) * 1992-08-10 1994-02-11 David R. Woodward Method of installation of composite electrodes in discharge lamps
WO1996014654A1 (en) * 1994-11-08 1996-05-17 Philips Electronics N.V. Low-pressure discharge lamp
US5847498A (en) * 1994-12-23 1998-12-08 Philips Electronics North America Corporation Multiple layer composite electrodes for discharge lamps
US5550431A (en) * 1995-05-05 1996-08-27 Osram Sylvania Inc. High pressure arc discharge lamp having barium hafnate impregnated electrodes
DE19527723A1 (de) * 1995-07-31 1997-02-06 Philips Patentverwaltung Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode
DE10242245A1 (de) * 2002-09-12 2004-03-25 Philips Intellectual Property & Standards Gmbh Niederdruckgasentlastungslampe mit einem Erdalkalioxidgemisch als Elektronen-Ermittersubstanz
US7633216B2 (en) * 2005-11-28 2009-12-15 General Electric Company Barium-free electrode materials for electric lamps and methods of manufacture thereof
US7633226B2 (en) * 2005-11-30 2009-12-15 General Electric Company Electrode materials for electric lamps and methods of manufacture thereof
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
CN102366837A (zh) * 2011-08-10 2012-03-07 厦门虹鹭钨钼工业有限公司 一种高压气体放电灯用钍钨-钨复合电极的制作方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389060A (en) * 1943-08-13 1945-11-13 Callite Tungsten Corp Refractory body of high electronic emission
US3563797A (en) * 1969-06-05 1971-02-16 Westinghouse Electric Corp Method of making air stable cathode for discharge device
FR2140236B1 (de) * 1971-06-04 1978-02-03 Itt
US3766423A (en) * 1971-12-03 1973-10-16 Itt Integral emissive electrode
US4303848A (en) * 1979-08-29 1981-12-01 Toshiba Corporation Discharge lamp and method of making same

Also Published As

Publication number Publication date
JP2993789B2 (ja) 1999-12-27
EP0489463A2 (de) 1992-06-10
CN1031850C (zh) 1996-05-22
HU913779D0 (en) 1992-03-30
HUT59768A (en) 1992-06-29
CN1062056A (zh) 1992-06-17
HU206787B (en) 1992-12-28
JPH04269440A (ja) 1992-09-25
EP0489463A3 (en) 1992-11-25
US5138224A (en) 1992-08-11
EP0489463B1 (de) 1994-11-09
DE69105103D1 (de) 1994-12-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

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

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

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

8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: VOLMER, G., DIPL.-ING., PAT.-ANW., 52066 AACHEN

8339 Ceased/non-payment of the annual fee