EP1107284A2 - Lampe à décharge à haute pression - Google Patents

Lampe à décharge à haute pression Download PDF

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Publication number
EP1107284A2
EP1107284A2 EP00204116A EP00204116A EP1107284A2 EP 1107284 A2 EP1107284 A2 EP 1107284A2 EP 00204116 A EP00204116 A EP 00204116A EP 00204116 A EP00204116 A EP 00204116A EP 1107284 A2 EP1107284 A2 EP 1107284A2
Authority
EP
European Patent Office
Prior art keywords
electrode
electrode chamber
gas discharge
pressure gas
discharge lamp
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Withdrawn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
EP00204116A
Other languages
German (de)
English (en)
Other versions
EP1107284A3 (fr
Inventor
Marcus Dr. Philips CIP GmbH Kubon
Hermann Philips CIP GmbH Krautzberger
Joseph Philips CIP GmbH Eijsermans
Dorothea Dr. Philips CIP GmbH Seebode
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
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics 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 Intellectual Property and Standards GmbH, Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP1107284A2 publication Critical patent/EP1107284A2/fr
Publication of EP1107284A3 publication Critical patent/EP1107284A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • 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
    • 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
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • 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

Definitions

  • the invention relates to a high-pressure gas discharge lamp with two tungsten electrodes, which are each arranged on brackets in an electrode chamber and have a diameter have less than 500 ⁇ m.
  • Similar high-pressure gas discharge lamps are described, for example, in WO 98/37570 A1 and WO 98/37571 A1.
  • Two tungsten electrodes protrude from each, each are still surrounded by a tungsten wire, on essentially self-supporting brackets into an electrode chamber.
  • the brackets used in these publications consist of rhenium or contain rhenium, are in one with the term "Floor of the electrode chamber" designated place with the wall of the electrode chamber in contact. At this point the electrode chamber is also sealed. This happens through a metal foil, each connected to a bracket and a lead wire and on which the material forming the electrode chamber is squeezed.
  • High-pressure gas discharge lamps in which the Tungsten electrodes have a diameter of less than 500 ⁇ m or in which the Piston length, that is the distance between the base points of a electrode chamber Wall, less than 15 mm.
  • the electrode chamber seals as well as the electrode chamber bottom on different Positions.
  • the electrode chamber floor is up to several Millimeters from the seals on the metal foil.
  • the invention proposes a generic high-pressure gas discharge lamp in which at least one of the tungsten electrodes is entirely in the electrode chamber is arranged.
  • the electrode chamber with at least one holder is at a contact point, speaks to an electrode chamber bottom, in contact, however, there is the possibility that there is sufficient convection around the tungsten electrode that lasts a long time Lamp life allowed.
  • the sum divided by the electrode spacing from the electrode distance and the distances between the electrode tips and the respective Electrode chamber floors are between 1.6 and 3.
  • At least one holder preferably has a rhenium jacket or is formed from a rhenium rod. It is advantageous if the rhenium content of the jacket or rod does not drop below 25 percent by weight.
  • the electrode chamber can comprise, for example, a mixture of NaJ, SnI 2 , NaBr, TlBr, HgI 2 and / or WO 3 .
  • mercury, oxygen and argon or another noble gas can be provided in the electrode chamber.
  • the oxygen or WO 3 serves as an oxygen supplier in order to form oxihalides.
  • the tungsten electrode is preferably welded onto the holder. Such Connection can be reliably provided even in the smallest dimensions. This applies especially in connection with the use of rhenium.
  • the Electrode chamber in at least one cutting plane to at least one electrode at least one holder tapers, the taper gradient in the taper direction up to a contact point or an electrode chamber floor, a real one Minimum passes through.
  • Such a configuration of the electrode chamber can in Area of the electrode chamber bottom an artificial extension of the electrode chamber, which points away from the tungsten electrode. By a such an extension can be reliably achieved that the tungsten electrode for Entirely arranged in the electrode chamber.
  • the lamp body can be heated in the area of the electrode chamber base to expand it become. This ensures a particularly simple manufacture of the respective Lamp.
  • the high-pressure gas discharge lamp shown in the figures has a sealed one Glass body 1 made of quartz glass. However, this can also consist, for example, of mono- or polycrystalline ceramics exist.
  • a wall 2 encloses a shape pressed quartz glass an electrode chamber 3, which with a suitable mixture filled with xenon and mercury as well as various salts.
  • the electrode chamber 3 is sealed at the level of metal foils 4, which 5 electrically with corresponding leads are conductively connected.
  • Electrode arrangements 6 protrude from the metal foils 4 into the electrode chamber 3 inside.
  • the electrode arrangements 6 consist of a tungsten electrode 7a and one Bracket 7b.
  • the holder 7b is a rhenium rod, on which at a transition point 7c the tungsten electrode 7a is welded on.
  • the tungsten electrode 7a is arranged entirely in the electrode chamber 3.
  • the holder 7b is electrical at one point 4a with the film 4 conductively connected.
  • the holders 7b enter the electrode chamber 3 at a contact point 8a.
  • This Place is usually referred to with the term "electrode chamber floor”.
  • a bead-like recess closes immediately at the electrode chamber bottom 8a 8b before the actual electrode chamber 3 begins.
  • the electrode chamber 3 thus tapers from the tungsten electrode 7a proceeding to the holder 7b, the taper gradient in the taper direction passes through a real minimum precisely at the recess 8b. Since in the present embodiment the electrode chamber 3 even expands again at this point, is in this area the taper gradient is even negative.
  • the inner wall chamber is in the present exemplary embodiment (BWK), which is the sum of the electrode distance (EA) and the distances (PBA) between the electrode tips and the respective electrode chamber bottoms, greater than the bulb length (KL) of the lamp.
  • the electrode spacing is approximately 4 mm and the distance between an electrode tip and the respective electrode chamber floor about 1.3 mm. It follows that the sum divided by the electrode spacing from the electrode distance and the distances between the electrode tips and the respective Electrode bottoms is 1.65.

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP00204116A 1999-11-30 2000-11-22 Lampe à décharge à haute pression Withdrawn EP1107284A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19957561 1999-11-30
DE19957561A DE19957561A1 (de) 1999-11-30 1999-11-30 Hochdruckgasentladungslampe

Publications (2)

Publication Number Publication Date
EP1107284A2 true EP1107284A2 (fr) 2001-06-13
EP1107284A3 EP1107284A3 (fr) 2004-09-08

Family

ID=7930837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00204116A Withdrawn EP1107284A3 (fr) 1999-11-30 2000-11-22 Lampe à décharge à haute pression

Country Status (6)

Country Link
US (1) US6646380B1 (fr)
EP (1) EP1107284A3 (fr)
JP (1) JP4833400B2 (fr)
KR (1) KR100830748B1 (fr)
CN (1) CN1193402C (fr)
DE (1) DE19957561A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079772A2 (fr) * 2003-03-06 2004-09-16 Philips Intellectual Property & Standards Gmbh Lampe à décharge à vapeur de mercure à pression élevée
CN103836551A (zh) * 2012-11-27 2014-06-04 海洋王（东莞）照明科技有限公司 高压气体放电灯及其减震弹片

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6809478B2 (en) * 2001-03-30 2004-10-26 Matsushita Electric Industrial Co., Ltd. Metal halide lamp for automobile headlight
KR20030020846A (ko) 2001-09-04 2003-03-10 마쯔시다덴기산교 가부시키가이샤 고압방전램프 및 그 제조방법
US7034461B2 (en) * 2002-09-19 2006-04-25 Osram Sylvania Inc. Ceramic arc tube with internal ridge
JP4670597B2 (ja) * 2005-11-04 2011-04-13 ウシオ電機株式会社 ショートアーク型水銀ランプ
WO2007077504A2 (fr) * 2006-01-03 2007-07-12 Philips Intellectual Property & Standards Gmbh Lampe à décharge de vapeurs de mercure à haute pression et procédé de fabrication d’une lampe à décharge de vapeurs de mercure à haute pression
US20090146571A1 (en) * 2007-12-06 2009-06-11 Russell Timothy D Metal halide lamp with halogen-promoted wall cleaning cycle
US8203269B2 (en) * 2010-06-03 2012-06-19 General Electric Company Compact metal halide lamp with salt pool container at its arc tube endparts

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161672A (en) * 1977-07-05 1979-07-17 General Electric Company High pressure metal vapor discharge lamps of improved efficacy
JPS59115556A (ja) * 1982-12-22 1984-07-04 Toshiba Corp 電荷転送形シフトレジスタ
JPS60258843A (ja) * 1984-06-04 1985-12-20 Matsushita Electric Works Ltd 高圧放電灯
EP0266821B1 (fr) * 1986-10-20 1991-01-02 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression
US4970431A (en) * 1987-11-03 1990-11-13 U.S. Philips Corporation High-pressure sodium discharge lamp with fins radially extending from the discharge vessel for controlling the wall temperature of the discharge vessel
JPH02129662A (ja) * 1988-11-09 1990-05-17 Ricoh Co Ltd 複写機の操作パネル
JPH02140756A (ja) * 1988-11-21 1990-05-30 Konica Corp 静電像現像剤
US5083059A (en) * 1990-12-31 1992-01-21 Welch Allyn, Inc. Electrode for metal halide discharge lamp
DE4127555A1 (de) * 1991-08-20 1993-02-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe
US5420477A (en) * 1993-01-15 1995-05-30 Welch Allyn, Inc. Electrode for metal halide discharge lamp
DE19633150C2 (de) * 1996-08-17 2000-07-06 Krebs Glas Lauscha Gmbh Verfahren und Vorrichtung zur Herstellung dünnwandiger Formkörper aus Glas
CN1146008C (zh) * 1997-02-24 2004-04-14 皇家菲利浦电子有限公司 高压金属卤化物灯
EP0866488B1 (fr) * 1997-03-17 2004-03-03 Matsushita Electric Industrial Co., Ltd. Procédé de fabrication d'une lampe à décharge à haute pression
DE19727428A1 (de) * 1997-06-27 1999-01-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenidlampe mit keramischem Entladungsgefäß
DE19808981A1 (de) * 1998-03-04 1999-09-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrode mit Wendelaufsatz
KR100350616B1 (ko) * 1998-03-16 2002-08-30 마츠시타 덴끼 산교 가부시키가이샤 방전램프의 제조방법
DE69911735T2 (de) * 1998-06-30 2004-07-29 Koninklijke Philips Electronics N.V. Hochdruckentladungslampe
US6307321B1 (en) * 1999-07-14 2001-10-23 Toshiba Lighting & Technology Corporation High-pressure discharge lamp and lighting apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079772A2 (fr) * 2003-03-06 2004-09-16 Philips Intellectual Property & Standards Gmbh Lampe à décharge à vapeur de mercure à pression élevée
WO2004079772A3 (fr) * 2003-03-06 2006-03-09 Philips Intellectual Property Lampe à décharge à vapeur de mercure à pression élevée
US7291980B2 (en) 2003-03-06 2007-11-06 Koninklijke Philips Electronics, N.V. High-pressure mercury vapor discharge lamp with a space
CN103836551A (zh) * 2012-11-27 2014-06-04 海洋王（东莞）照明科技有限公司 高压气体放电灯及其减震弹片
CN103836551B (zh) * 2012-11-27 2017-02-22 海洋王（东莞）照明科技有限公司 高压气体放电灯及其减震弹片

Also Published As

Publication number Publication date
CN1193402C (zh) 2005-03-16
JP4833400B2 (ja) 2011-12-07
KR100830748B1 (ko) 2008-05-20
EP1107284A3 (fr) 2004-09-08
KR20010052026A (ko) 2001-06-25
JP2001167738A (ja) 2001-06-22
DE19957561A1 (de) 2001-05-31
CN1308367A (zh) 2001-08-15
US6646380B1 (en) 2003-11-11

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