WO2006099850A2 - Lampe comportant une alimentation electrique et une electrode - Google Patents

Lampe comportant une alimentation electrique et une electrode Download PDF

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Publication number
WO2006099850A2
WO2006099850A2 PCT/DE2006/000497 DE2006000497W WO2006099850A2 WO 2006099850 A2 WO2006099850 A2 WO 2006099850A2 DE 2006000497 W DE2006000497 W DE 2006000497W WO 2006099850 A2 WO2006099850 A2 WO 2006099850A2
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
electrode
glass
surface structuring
power supply
Prior art date
Application number
PCT/DE2006/000497
Other languages
German (de)
English (en)
Other versions
WO2006099850A3 (fr
Inventor
Jürgen Becker
Jianping Liu
Original Assignee
Patent-Treuhand-Gesellschaft für elektrische Glühlampen 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 für elektrische Glühlampen mbH filed Critical Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
Priority to DE112006001337T priority Critical patent/DE112006001337A5/de
Publication of WO2006099850A2 publication Critical patent/WO2006099850A2/fr
Publication of WO2006099850A3 publication Critical patent/WO2006099850A3/fr

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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/28—Manufacture of 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
    • 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
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

Definitions

  • the invention relates to a lamp according to the preamble of patent claim 1.
  • Such lamps provided with a glass melting or crushing seal made of quartz or hard glass are used, for example, as halogen incandescent lamps, discharge lamps and the like.
  • each of the two opposite ends of the molybdenum foils are welded to an inner and an outer power supply wire made of molybdenum and positioned the resulting power supply system in the Lampengefä touchde such that the inner power supply lines into the interior of the lamp vessel in and the outer power supply lines protrude from this.
  • the glass is heated at the end of the lamp vessel and squeezed gas-tight, for example by means of crimping jaws with the power supply system to a pinch seal.
  • the molybdenum foil serves, on the one hand, to produce the electrically conductive connection between the lamp arranged inside the lamp vessel and the power supply lines, and, on the other hand, ensures a gas-tight closure of the lamp vessel. It has been shown that the high-temperature-resistant metal, while for example, molybdenum existing power supply lines and electrodes, especially in lamps with high temperature load, cause a significant increase in voltage in the pinch seal due to the metal compared to much smaller thermal expansion coefficient of the pinch seal, which leads to cracks in the glass to break and thus premature failure of the lamp can lead.
  • EP 0 858 098 B1 To improve the voltage resistance and thus to avoid cracking and cracking of the pinch seal, it is known from EP 0 858 098 B1 to apply a helix of refractory metal to a pin-shaped electrode of a discharge lamp.
  • the electrode In this very labor-intensive process, the electrode is clamped and a coil wire wound in the area of the pinch seal on the electrode and pressed.
  • the helix prevents a surface embedding of the electrode shaft of the electrode and thereby reduces stresses between the glass melt and the electrode.
  • a disadvantage of such lamps is firstly that the production is cost-intensive due to the laborious process and on the other hand by the mechanical winding of the coil is a high risk of contamination, which leads to a reduced service life of the lamp.
  • Another disadvantage is that the helix causes an additional material requirement.
  • the invention has for its object to provide a lamp with at least one power supply and / or electrode, which allows over conventional solutions, a holder of the power supply lines or electrodes in the pinch seal without critical stresses at a reduced manufacturing cost.
  • the lamp according to the invention has at least one power supply and / or electrode which has a glass-embedded section which is provided with a surface structure.
  • the surface structuring consists of a large number of surface depressions and surface elevations, with the surface elevations during embedding in the glass pinch in contact with the glass. Due to the preferably partially free-standing embedding of the wire or of the electrode shaft in the melt, a homogeneous voltage curve in the pinch seal is made possible - in other words - the critical stresses are converted into smaller, locally limited voltages.
  • the surface structuring is formed such that the glass does not penetrate during melting into the surface depressions formed by the structuring.
  • the surface structuring is substantially helical.
  • the surface structuring is formed unevenly.
  • the surface structure has at least in sections a depth of about 1/10 of the diameter of the StromzuWORKun ⁇ g or electrode.
  • Laser surface treatment can be supplemented by the use of additives to achieve optimal glass embedding (dense, no cracks).
  • the microwavenstruktu- is introduced mechanically.
  • the surface structuring is preferably introduced by means of a stamp, in particular a sapphire stamp.
  • a stamp for example, laser radiation can be introduced via a light guide into a sapphire stamp provided with a surface structuring. The laser radiation penetrates the sapphire stamp and heats the power supply or the electrode shaft up to the deformation temperature. After or during the heating process, the sapphire punch is pressed into the surface and introduced the defined surface structuring.
  • the surface structuring is introduced via at least one roller.
  • the surface structuring is preferably formed in the region of an electrode shaft of the electrode.
  • Figure 1 is a schematic representation of a first embodiment of the lamp according to the invention.
  • Figure 2 is an enlarged view of an electrode shaft according to another embodiment of the invention of the lamp. Preferred embodiments of the invention
  • the lamp according to the invention is by no means limited to such lamp types.
  • a high-pressure discharge lamp 1 as used for example in vehicle headlights or projectors use.
  • This has a discharge vessel 2 made of quartz glass with an interior 4 and two diametrically arranged, sealed end sections 6, 8, which are formed as Glaseinschmelzonne 10, 12 and each having a power supply 14 which embedded with gas-tight in the Glaseinschmelzonne 10, 12 of the discharge lamp 1 , Be as rectangular molybdenum foils 16, 18 are welded.
  • Two diametrically arranged approximately pin-shaped electrodes 20, 22 of tungsten protrude into the interior 4, which are each connected to one of the molybdenum foils 16, 18 and between which a gas discharge is formed during lamp operation.
  • an ionizable filling which consists of high purity xenon gas and several metal halide iden.
  • the electrodes 20, 22 each have a portion embedded in the Glaseinschmelzung 10 and 12, 24, 26, which is provided with a surface structuring 28.
  • the embedded sections 24, 26 are each formed by an electrode shaft provided with the surface structuring 28.
  • the surface structure 28 is introduced into the electrode shaft 24, 26 as a substantially helical recess 30. Due to the surface structuring, the electrodes 20, 22 are partially embedded in free standing in the Glaseinschmelzung 10, 12.
  • FIG. 2 which shows an enlarged illustration of an electrode shaft 32 according to a further exemplary embodiment of the invention
  • the latter has an approximately thread-shaped or surface-shaped surface structure 34 having a plurality of surface depressions 36 and surface elevations 38.
  • the surface elevations 38 become embedded in the glass melt 10 , 12 (see Figure 1) brought into contact with the glass, wherein the surface depressions 36 are formed such that the viscous glass does not penetrate during melting in this.
  • the surface structuring 28, 34 is introduced by means of laser radiation into the electrode shaft 24, 26, 32 and has a
  • an Nd: YAG laser is used, which emits a pulsed laser radiation with a wavelength of about 355 nm.
  • mechanical forming processes can be dispensed with and a surface structure 28, 34 of high purity is achieved.
  • the surface structures 28, 34 can be generated by the action of the laser radiation as defined surface coverings, for example tungsten oxide coverings, which avoid critical cracks in the glass melt 10, 12 during operation of the lamp.
  • Laser surface treatment can be supplemented by the use of additives to achieve optimal glass embedding (dense, no cracks).
  • the two rectangular molybdenum foil pieces 16, 18 are cut off from a molybdenum ribbon arranged on a supply roll (not shown).
  • one of the power supply lines 14 and one of the electrodes 20, 22 is welded in each case on opposite narrow sides 40 of the molybdenum foil pieces 16, 18.
  • the narrow sides 40 of the molybdenum foils 16, 18 can additionally be flattened and patterned by means of laser radiation. As a result, the straight edge of the film resulting from the mechanical cutting of the molybdenum foils 16, 18 is so affected that a good embedding and sealing effect in the glass melt 10, 12 is made possible and critical stresses are prevented.
  • the power supply system prefabricated in this way is provided with the surface structuring 28, 34 by means of a laser beam or a mechanical method and then introduced and fused into the lamp vessel 2 to be closed in a gastight manner.
  • the surface structuring 28, 34 can be introduced into the power supply lines 14 and electrodes 20, 22 even before the components are joined.
  • the system consisting of power supply lines 14, molybdenum foils 16, 18 and electrodes 20, 22 forms a gas-tight unit melted in the lamp 1, which due to the surface structuring 28, 34 according to the invention, even at high thermal loads no stress fractures in the Glass melt 10, 12 up.
  • the said production process is particularly advantageous in conventional
  • Rotary machines can be integrated.
  • the lamp 1 according to the invention is not limited to the surface structuring 28, 34 described by means of laser radiation, but the surface structuring 28, 34 by means of any known from the general state of the art forming technology, in particular by stamping, rolling, embossing or the like be introduced. Furthermore, it is advantageous to form the power supply lines 14, as explained with reference to the electrode shaft 24, 26, 32, as a wire 42 having a surface structure 28, 34.
  • the section 24, 26 of the current supply 14 and / or electrode 20, 22 is formed by a wire 42 or electrode shaft 24, 26, 32 provided with a surface structuring 28, 34.
  • the power supply lines 14 may also be provided with the surface structure 28, 34 according to the invention in order to improve the so-called glazing behavior of the power supply lines 14, that is to reduce the adhesion of the power supply lines 14 to the surrounding glass of the lamp vessel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

L'invention concerne une lampe (1) comportant au moins une alimentation électrique (14) et/ou une électrode (20, 22) présentant une partie (24, 26) intégrée dans du verre (10, 12), pourvue d'une structuration de surface (28). Selon l'invention, la partie (24, 26) de l'alimentation électrique et/ou de l'électrode est formée par un fil métallique ou une tige d'électrode pourvu d'une structuration de surface.
PCT/DE2006/000497 2005-03-22 2006-03-21 Lampe comportant une alimentation electrique et une electrode WO2006099850A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006001337T DE112006001337A5 (de) 2005-03-22 2006-03-21 Lampe mit Stromzuführung und Elektrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510013759 DE102005013759A1 (de) 2005-03-22 2005-03-22 Lampe mit Stromzuführung und Elektrode
DE102005013759.8 2005-03-22

Publications (2)

Publication Number Publication Date
WO2006099850A2 true WO2006099850A2 (fr) 2006-09-28
WO2006099850A3 WO2006099850A3 (fr) 2007-04-26

Family

ID=36973647

Family Applications (1)

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PCT/DE2006/000497 WO2006099850A2 (fr) 2005-03-22 2006-03-21 Lampe comportant une alimentation electrique et une electrode

Country Status (2)

Country Link
DE (2) DE102005013759A1 (fr)
WO (1) WO2006099850A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007055958A3 (fr) * 2005-11-09 2007-09-20 Gen Electric Lampe à décharge à haute intensité avec contrôle de fissurage amélioré et procédé de fabrication
DE102007010607A1 (de) 2007-03-05 2008-09-11 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
DE102008052688A1 (de) 2008-10-22 2010-04-29 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
CN102652345A (zh) * 2009-12-18 2012-08-29 皇家飞利浦电子股份有限公司 用在电灯中的电极
CN103828015A (zh) * 2011-09-30 2014-05-28 皇家飞利浦有限公司 放电灯

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2005463A2 (fr) * 2006-04-05 2008-12-24 Koninklijke Philips Electronics N.V. Lampe a decharge haute pression avec tiges d'electrodes equipees d'un moyen pour provoquer des fissures
DE202007009119U1 (de) * 2007-06-29 2008-08-07 Osram Gesellschaft mit beschränkter Haftung Elektrische Lampe mit einer laserstrukturierten Metalleinschmelzung
WO2008119375A1 (fr) * 2007-03-29 2008-10-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge, notamment lampe à décharge haute pression
EP1975972A3 (fr) * 2007-03-29 2010-06-23 Osram Gesellschaft mit Beschränkter Haftung Lampe électrique dotée d'un scellement ayant comportant un conducteur de métal structuré à laser
DE202007009118U1 (de) * 2007-06-29 2008-08-07 Osram Gesellschaft mit beschränkter Haftung Elektrische Lampe mit einer laserstrukturierten Stromzuführung
DE102009011525A1 (de) 2009-03-03 2010-09-09 Osram Gesellschaft mit beschränkter Haftung Elektrische Lampe und Verfahren zur Herstellung
JP2010272307A (ja) * 2009-05-20 2010-12-02 Koito Mfg Co Ltd 車輌用放電灯
JP2010272308A (ja) 2009-05-20 2010-12-02 Koito Mfg Co Ltd 車輌用放電灯
JP2012084454A (ja) * 2010-10-14 2012-04-26 Koito Mfg Co Ltd 放電バルブ用アークチューブ

Citations (11)

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Publication number Priority date Publication date Assignee Title
DE2500482A1 (de) * 1974-01-21 1975-07-24 Philips Nv Elektrische gluehlampe
US4703221A (en) * 1986-04-18 1987-10-27 Ochoa Carlos G Electric lamp and method of making
JPH01243367A (ja) * 1988-03-25 1989-09-28 Ushio Inc 白熱電球の製造方法
JPH10106492A (ja) * 1996-10-02 1998-04-24 Matsushita Electron Corp メタルハライドランプ
US5793161A (en) * 1994-05-03 1998-08-11 U.S. Philips Corporation High-pressure discharge lamp electrode
DE19749908A1 (de) * 1997-11-11 1999-05-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrodenbauteil für Entladungslampen
US20020190654A1 (en) * 2001-06-13 2002-12-19 Ushiodenki Kabushiki Kaisha Super-high pressure discharge lamp of the short arc type
US20030020403A1 (en) * 2000-08-03 2003-01-30 Keisuke Okubo High pressure discharge lamp of the short arc type
US20030042856A1 (en) * 2001-08-30 2003-03-06 Yuriko Kaneko High pressure discharge lamp and method for producing the same
EP1465235A2 (fr) * 2003-03-25 2004-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge
WO2006082539A2 (fr) * 2005-02-04 2006-08-10 Koninklijke Philips Electronics N.V. Lampe electrique a tiges d'electrode dotees de rainures longitudinales

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10241630A (ja) * 1997-02-24 1998-09-11 Matsushita Electron Corp ランプ

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500482A1 (de) * 1974-01-21 1975-07-24 Philips Nv Elektrische gluehlampe
US4703221A (en) * 1986-04-18 1987-10-27 Ochoa Carlos G Electric lamp and method of making
JPH01243367A (ja) * 1988-03-25 1989-09-28 Ushio Inc 白熱電球の製造方法
US5793161A (en) * 1994-05-03 1998-08-11 U.S. Philips Corporation High-pressure discharge lamp electrode
JPH10106492A (ja) * 1996-10-02 1998-04-24 Matsushita Electron Corp メタルハライドランプ
DE19749908A1 (de) * 1997-11-11 1999-05-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrodenbauteil für Entladungslampen
US20030020403A1 (en) * 2000-08-03 2003-01-30 Keisuke Okubo High pressure discharge lamp of the short arc type
US20020190654A1 (en) * 2001-06-13 2002-12-19 Ushiodenki Kabushiki Kaisha Super-high pressure discharge lamp of the short arc type
US20030042856A1 (en) * 2001-08-30 2003-03-06 Yuriko Kaneko High pressure discharge lamp and method for producing the same
EP1465235A2 (fr) * 2003-03-25 2004-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge
WO2006082539A2 (fr) * 2005-02-04 2006-08-10 Koninklijke Philips Electronics N.V. Lampe electrique a tiges d'electrode dotees de rainures longitudinales

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199847 Derwent Publications Ltd., London, GB; AN 1998-547896 XP002390207 -& JP 10 241630 A (MATSUSHITA ELECTRONICS CORP) 11. September 1998 (1998-09-11) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007055958A3 (fr) * 2005-11-09 2007-09-20 Gen Electric Lampe à décharge à haute intensité avec contrôle de fissurage amélioré et procédé de fabrication
US7952283B2 (en) 2005-11-09 2011-05-31 General Electric Company High intensity discharge lamp with improved crack control and method of manufacture
DE102007010607A1 (de) 2007-03-05 2008-09-11 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
DE102008052688A1 (de) 2008-10-22 2010-04-29 Osram Gesellschaft mit beschränkter Haftung Entladungslampe
CN102652345A (zh) * 2009-12-18 2012-08-29 皇家飞利浦电子股份有限公司 用在电灯中的电极
US9653280B2 (en) 2009-12-18 2017-05-16 Koninklijke Philips N.V. Electrode for use in a lamp
CN103828015A (zh) * 2011-09-30 2014-05-28 皇家飞利浦有限公司 放电灯

Also Published As

Publication number Publication date
WO2006099850A3 (fr) 2007-04-26
DE102005013759A1 (de) 2006-09-28
DE112006001337A5 (de) 2008-03-06

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