EP1465236A3 - Discharge lamp - Google Patents

Discharge lamp Download PDF

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Publication number
EP1465236A3
EP1465236A3 EP04003794A EP04003794A EP1465236A3 EP 1465236 A3 EP1465236 A3 EP 1465236A3 EP 04003794 A EP04003794 A EP 04003794A EP 04003794 A EP04003794 A EP 04003794A EP 1465236 A3 EP1465236 A3 EP 1465236A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
sealed end
electrode
coating
extending
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.)
Withdrawn
Application number
EP04003794A
Other languages
German (de)
French (fr)
Other versions
EP1465236A2 (en
Inventor
Thomas Bittmann
Alfred Langer
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 GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1465236A2 publication Critical patent/EP1465236A2/en
Publication of EP1465236A3 publication Critical patent/EP1465236A3/en
Withdrawn legal-status Critical Current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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/22—Wheels for roller skates
    • A63C17/223—Wheel hubs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
    • A63C17/068—Production or mounting thereof
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/22—Wheels for roller skates
    • A63C17/226—Wheel mounting, i.e. arrangement connecting wheel and axle mount
    • 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
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

Die Erfindung betrifft eine Entladungslampe, insbesondere eine Hochdruckentladungslampe mit einem Entladungsgefäß (1), das mindestens ein abgedichtetes, mit einer Stromdurchführung (2) versehenes Ende (11) aufweist. Erfindungsgemäß ist der sich in das abgedichtete Ende (11) erstreckende Abschnitt (41) der Elektrode (4) mit einer Beschichtung (410) versehen, die ein hochschmelzendes Metall aus der Gruppe der Platinmetalle, vorzugsweise Ruthenium, enthält.

Figure 00000001
The invention relates to a discharge lamp, in particular a high-pressure discharge lamp with a discharge vessel (1), which has at least one sealed end (11) provided with a current feed-through (2). According to the invention, the section (41) of the electrode (4) extending into the sealed end (11) is provided with a coating (410) which contains a refractory metal from the group of platinum metals, preferably ruthenium.
Figure 00000001
EP04003794A 2003-03-21 2004-02-19 Discharge lamp Withdrawn EP1465236A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312748A DE10312748A1 (en) 2003-03-21 2003-03-21 discharge lamp
DE10312748 2003-03-21

Publications (2)

Publication Number Publication Date
EP1465236A2 EP1465236A2 (en) 2004-10-06
EP1465236A3 true EP1465236A3 (en) 2005-12-14

Family

ID=32842159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003794A Withdrawn EP1465236A3 (en) 2003-03-21 2004-02-19 Discharge lamp

Country Status (5)

Country Link
US (1) US20040183443A1 (en)
EP (1) EP1465236A3 (en)
JP (1) JP2004288631A (en)
KR (1) KR20040083379A (en)
DE (1) DE10312748A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336087A1 (en) * 2003-08-06 2005-03-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electrode system with novel connection, associated lamp with this foil and method of making the connection
US20060108928A1 (en) * 2004-11-24 2006-05-25 Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh Process for producing a supply conductor for a lamp, and supply conductor for a lamp, as well as lamp having a supply conductor
JP4498940B2 (en) * 2005-02-02 2010-07-07 ハリソン東芝ライティング株式会社 Metal halide lamp
US7952283B2 (en) * 2005-11-09 2011-05-31 General Electric Company High intensity discharge lamp with improved crack control and method of manufacture
CN101563754B (en) * 2006-12-18 2012-05-16 皇家飞利浦电子股份有限公司 High-pressure discharge lamp having a ceramic discharge vessel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524233B2 (en) * 1972-07-01 1980-06-27
DE3942399A1 (en) * 1988-12-23 1990-06-28 Ushio Electric Inc Electrode construction for use in gas discharge lamps - with cathode sepd. into front end with electron emission chip, and plated rear part to prevent glass adhesion
JPH06223783A (en) * 1993-01-28 1994-08-12 Matsushita Electric Ind Co Ltd Discharge lamp and its manufacture
DE19961551A1 (en) * 1999-12-20 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Melting film and associated lamp with this film
US20030052603A1 (en) * 2001-09-04 2003-03-20 Kiyoshi Takahashi High pressure discharge lamp and method for producing the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3218560B2 (en) * 1997-02-07 2001-10-15 スタンレー電気株式会社 Metal halide lamp for headlight
EP1065698B1 (en) * 1999-07-02 2008-07-30 Phoenix Electric Co., Ltd. Mount for lamp and lamp seal structure employing the mount
JP3759498B2 (en) * 2001-03-30 2006-03-22 松下電器産業株式会社 Metal halide lamp for automotive headlamp
KR20030046318A (en) * 2001-12-05 2003-06-12 마쯔시다덴기산교 가부시키가이샤 Method for producing the high pressure discharge lamp, high pressure discharge lamp and lamp unit
DE10218412A1 (en) * 2002-04-24 2003-11-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Melting film and associated lamp with this film
US7097529B2 (en) * 2003-01-14 2006-08-29 Matsushita Electric Industrial Co., Ltd. Method for producing a high pressure discharge lamp, with sealing portion having first and second glass members
CN100411085C (en) * 2003-01-14 2008-08-13 松下电器产业株式会社 Manufacturing method of high-voltage discharge lamp, high-voltage discharge lamp and lamp assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524233B2 (en) * 1972-07-01 1980-06-27
DE3942399A1 (en) * 1988-12-23 1990-06-28 Ushio Electric Inc Electrode construction for use in gas discharge lamps - with cathode sepd. into front end with electron emission chip, and plated rear part to prevent glass adhesion
JPH06223783A (en) * 1993-01-28 1994-08-12 Matsushita Electric Ind Co Ltd Discharge lamp and its manufacture
DE19961551A1 (en) * 1999-12-20 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Melting film and associated lamp with this film
US20030052603A1 (en) * 2001-09-04 2003-03-20 Kiyoshi Takahashi High pressure discharge lamp and method for producing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198030, Derwent World Patents Index; Class L03, AN 1980-52659C, XP002164795 *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 586 (E - 1627) 9 November 1994 (1994-11-09) *

Also Published As

Publication number Publication date
DE10312748A1 (en) 2004-09-30
EP1465236A2 (en) 2004-10-06
US20040183443A1 (en) 2004-09-23
KR20040083379A (en) 2004-10-01
JP2004288631A (en) 2004-10-14

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