WO2001035436A1 - Entladungslampe mit elektrodenhalterung - Google Patents
Entladungslampe mit elektrodenhalterung Download PDFInfo
- Publication number
- WO2001035436A1 WO2001035436A1 PCT/DE2000/003515 DE0003515W WO0135436A1 WO 2001035436 A1 WO2001035436 A1 WO 2001035436A1 DE 0003515 W DE0003515 W DE 0003515W WO 0135436 A1 WO0135436 A1 WO 0135436A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- discharge vessel
- discharge
- holder
- vessel
- Prior art date
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
-
- 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
- H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
Definitions
- the invention relates to a method for producing a discharge lamp with a discharge vessel filled with a discharge medium and with an electrode running in the discharge vessel at a distance from the vessel walls. or is filled with the discharge medium and which is then sealed.
- a tube or the like which projects through a wall of the discharge vessel, is also melted as a pump stem in the manufacture of the discharge vessel.
- an evacuation pump is connected to the outside of the pump stem and the discharge vessel is evacuated to the desired negative pressure.
- the discharge vessel is then filled with the discharge medium, usually a gas or gas mixture, by the pump handle.
- the tube forming the pump stem is melted outside the discharge vessel, usually relatively close to the discharge vessel, in order to remove the entire discharge. the vessel must be closed completely vacuum tight.
- the pump stem is usually attached to the discharge vessel in such a way that it does not protrude into the interior of the discharge vessel.
- Discharge lamps with a dielectric barrier discharge are a special type of discharge lamp.
- the electrode and / or a counter electrode or a plurality of counter electrodes are separated from the discharge in the interior of the discharge vessel by at least one dielectric.
- the invention is not exclusively directed, but preferably, to such discharge lamps for dielectrically impeded discharges.
- a voltage is applied between the electrode and a counter electrode, which is also located in the discharge vessel or on the discharge vessel, as a result of which a discharge occurs between the electrode and the counter electrode in the discharge medium.
- a discharge occurs between the electrode and the counter electrode in the discharge medium.
- ultraviolet or infrared radiation or visible light is emitted.
- Such a lamp is described for example in DE 196 36 965 AI.
- one of the two electrodes permanently forms the anode and the other electrode forms the cathode. It is sufficient to separate the anode from the discharge by the dielectric.
- the vessel wall can also serve as the dielectric. In this case, only the cathode is located in the discharge vessel, whereas the anode or the anodes are applied to the outside of the vessel wall. This can be, for. B. are strips of a gold or platinum paste, which are printed directly on the vessel wall.
- the two electrodes are not distinguished from one another and both are shielded by a dielectric. By appropriate voltage changes, one electrode and sometimes the other electrode form the anode.
- the discharge lamps are preferably supplied with an in principle unlimited sequence of extremely short voltage pulses with a high repetition frequency. Please refer to W094 / 23442.
- This object is achieved in that a holder made of non-conductive material is arranged in the discharge vessel, which fixes the electrode at a predetermined position in the discharge vessel and this holder or part of this holder as a pump stem or part of a pump stem and is used.
- the pump stem that is required anyway in the production of a discharge lamp is used at the same time to hold tion or part of a bracket to serve. This enables the electrode to be securely positioned during manufacture in later use, additional process steps being minimized or additional process steps being even dispensed with entirely. This means that the production according to the invention is not at all or only slightly more expensive.
- the holder or the part of the holder serving as a pump stem can in principle have any shape that is suitable for fixing or supporting the electrode accordingly.
- the part of the holder serving as a pump stem is designed in the form of a tube, which projects at one end through a wall of the discharge vessel into the discharge vessel. Basically, all that is required is an extension of the conventional pump stems used so far.
- the holder can be designed in such a way that it has an elongated support element which extends in the main direction of extension of the electrode and which supports the electrode on at least one partial area, the support element and the electrode being aligned coaxially or parallel to one another.
- the above-mentioned inwardly elongated pump stem can be used as the support element or support tube. It can, therefore, by appropriate arrangement of the tube projecting into the discharge vessel to the electrode ensures simple, reliable support of the electrode.
- the electrode can also be a differently shaped support element, for example an elongated, plate-shaped support element or the like, which is provided with a corresponding tube part or has a corresponding bore.
- the electrode can have any shape.
- it can be longitudinal strips, waveforms, for example in the form of a sinusoid, zigzag electrodes, a coil or the like.
- the electrode extends helically around the support element on at least a partial area of the longitudinal extent.
- the electrode can be applied to the holder or an element of the holder in the form of a correspondingly structured conductive coating, for example made of gold or platinum paste. So z.
- a helical inner electrode can be applied in this way to a support rod or support tube running in the direction of extension of the electrode.
- Strip-shaped, wave-shaped or zigzag-shaped electrodes can, for example, be applied to an elongated, plate-shaped support element.
- a particularly preferred embodiment is a cylindrical discharge vessel with an inner electrode extending along the cylinder axis and a support element. It is consequently a discharge lamp with a central or concentric middle electrode. It is advisable to apply a plurality of strip-shaped counter electrodes running parallel to the cylinder axis on the vessel walls. In this way, the entire discharge space can be used effectively, the geometric arrangement required for this being relatively easy to generate. The problem that arises in this case of an exact central or concentric position of the central electrode during manufacture and continuous operation is solved by the invention.
- the support element for example in the form of the support tube serving as a pump stem, advantageously protrudes from an end face opposite a lamp base into the discharge vessel and is fastened to the corresponding end wall.
- a base on both sides can also be advantageous. Then the side of the pump stem is overlapped by a base.
- the support element or the tube can also be so long that the electrode is supported over the entire length.
- One or more openings which penetrate the tube wall and are located within the discharge vessel are preferably introduced into the support tube along the longitudinal extent. These openings enable better and more effective pumping or filling of the discharge vessel.
- the discharge vessel is closed on one side by squeezing.
- a metal foil is embedded, which serves as an electrical feedthrough for the inner electrode.
- This is attached to the metal foil, for example soldered on, and is partly pinched with one end, so that the electrode is held on one side by the pinch.
- this advantageously has a holding projection which extends transversely to the longitudinal direction of the supporting element or a holding recess.
- the retaining projection can be corresponding knobs, lugs, spikes, etc., the retaining recess can be a groove or the like.
- Such knobs or lugs for example, can be used to very well prevent a wire helix that runs around a support tube or a support rod against longitudinal displacement be secured.
- a spacer is located between the electrode and a vessel wall transverse to the main direction of extent of the electrode.
- a spacer can be a hook-like element, a tube or a pin, which is attached to a vessel wall and holds the electrode in position.
- several such spacers are used along the main longitudinal extent of the electrode.
- a corresponding hole must of course be made in at least one of the spacers.
- this additional spacer for fixing the support element there is a holding disc, which is arranged transversely to the main direction of extension of the electrode and extends between the vessel walls and through which the electrode with the plug element extends at a predetermined position. Through such a holding disc ensures secure positioning in any direction.
- FIG. 1 shows a schematic side view of a discharge lamp with a cylindrical discharge vessel and an axial central electrode, which is held by a support tube,
- FIG. 2 shows a cross section through a discharge vessel according to FIG. 1, with a support tube and an additional holder in the form of a spacer,
- FIG. 3 shows a cross section through a discharge vessel according to Figure 1, with a support tube and an alternative additional holder in
- FIG. 4 shows a cross section through a discharge vessel according to FIG. 1 with an alternative holder comprising a plurality of holding rods running transversely between the walls of the discharge vessel, one of which is used as a pump stamp.
- FIG. 5 shows a cross section through a discharge vessel according to FIG. 1 with an axially extending support tube and a plurality of radially extending cross supports.
- Figure 1 shows a first embodiment of a discharge lamp according to the invention. This discharge lamp 1 has a discharge vessel 2 made of quartz glass, which is held on one side in a base 5.
- the inside of the discharge vessel 2 is filled with a discharge medium.
- the present exemplary embodiment is an excimer discharge lamp which is filled with xenon. With such an excimer discharge lamp, VUV radiation is generated with high efficiency, which is used industrially, for example in the cleaning of wafers, for ozone production or for water purification.
- the lamp has a central helical electrode 6 within the cylindrical discharge device. This is the cathode, which is at a negative high voltage.
- the lamp 1 has an axial support tube 9, which projects from the end wall 4 opposite the lamp base 5 into the interior of the discharge vessel 2.
- the helical electrode 6 is partially guided around this support tube 9.
- a holding projection 12 in the form of a knob is formed on the support tube 9.
- the holder consists of a non-conductive material, such as glass, quartz glass or ceramic.
- the discharge vessel 2 is closed on the end wall 4 opposite the base region, the support tube 9 being in a Central opening 8 is sealed and fixed in the end wall 4.
- the open cylindrical vessel is heated and the support tube 9 is held by suitable aids, while the cylinder wall falls inwards under the action of heat. This closure can also be done by crushing.
- the filament 6 is then also squeezed within the base region when the cylindrical discharge vessel 2 is sealed in a vacuum-tight manner (not visible). In the area of the opposite end wall 4, it is held by the support tube 9.
- the helix 6 is screwed onto the support tube 9, the holding projection 12 moving between the helical gears.
- the support tube 9 is simultaneously used as a pump stem by pumping the discharge vessel 2 through the support tube 9 and filling it with gas via the tube 9.
- the support tube 9 can not only be held in the end wall 4, but can also extend longitudinally through the entire discharge vessel 2 into the base region 5 and, if appropriate, also be fastened in the end wall in the base region 5, for example be pressed in during production.
- the helix 6 can be a wire helix.
- the helix can also be applied to the support tube 9 by means of a conductive one Paste, for example gold or platinum paste or the like, can be applied.
- the electrode 6 is formed by a wire or a metal foil in the squeeze area and then the electrode is made of the structured, conductive coating within the discharge vessel 2 above the squeeze point consists of the support tube 9, the lower area of the coil consisting of wire or the metal foil and the upper area of the coil of course being correspondingly contacted with one another.
- lamps according to the exemplary embodiment according to FIG. 1 are currently produced in almost any length.
- a maximum length of 20 cm can be produced without such a holder, without a secure fit of the electrode 6 being endangered.
- lamps with a length of more than 85 cm are currently produced in the manner according to the invention.
- FIGS. 2-5 each show alternative exemplary embodiments for a holder.
- the support tube 9 is relatively long. In another embodiment, not shown, the support tube is only approx. 2 cm long and supports an approx. 12 cm long helix only in the end area.
- the exemplary embodiment shown in FIG. 2 is a hook-shaped spacer 14, which is attached at one end to the vessel wall 3, for example is melted, and additionally fixes the support tube 9 transversely to the direction of extension.
- a plurality of such spacing devices can be arranged along the longitudinal direction.
- Holder 14 may be arranged, which also advantageously extend radially outwards in different directions. A favorable distance between such spacer hooks 14 is approximately 15 cm.
- FIG. 3 shows as a spacer a continuous holding disc 15 through which the support tube 9 with the helix 6 runs in the middle.
- This holding disc 15 supports the support tube 9 with the helix 6 in addition to all sides with respect to the vessel walls 3.
- FIG. 4 shows a holder in the form of two holding rods 16, 17 running one behind the other in the longitudinal direction of the filament 6, each of which extends transversely through the discharge vessel 3 from one wall side to the other. These holding rods are fastened to the wall 3 on at least one side, for example melted down. At least one of these holding rods 16, 17 is designed as a hollow pump stem 17, which projects at one point with a section 19 from the discharge vessel 2 and has at least one, preferably a plurality of, openings 20 in the discharge vessel 2. In this version, too, it makes sense if several such rods 16, 17 are used one behind the other in the longitudinal extent of the helix 6.
- an axially extending support tube 9 is again used.
- This axially extending support tube 9 is supported by a plurality of radially extending cross supports 18, which extend between the support tube 9 and the side wall 3 of the discharge vessel 2.
- the axially extending support tube does not run inside the coil 6 but outside the coil 6.
- the inner helical electrode 6 is also separated from the discharge space by a dielectric, namely the wall of the support tube.
- a dielectric namely the wall of the support tube.
- Such a lamp is suitable for bipolar operation on.
- Another alternative is to completely surround the electrode with dielectric material, for example to melt the electrode into dielectric material.
- the electrode can again have any shape. In this case, the electrode is virtually integrated in the holder.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50008959T DE50008959D1 (de) | 1999-11-05 | 2000-10-06 | Entladungslampe mit elektrodenhalterung |
CA002358987A CA2358987C (en) | 1999-11-05 | 2000-10-06 | Discharge lamp with electrode frame |
US09/869,276 US6634917B1 (en) | 1999-11-05 | 2000-10-06 | Discharge lamp with electrode frame |
EP00982957A EP1147535B1 (de) | 1999-11-05 | 2000-10-06 | Entladungslampe mit elektrodenhalterung |
JP2001537084A JP4780887B2 (ja) | 1999-11-05 | 2000-10-06 | 電極ホルダを備えた放電ランプ |
AT00982957T ATE285119T1 (de) | 1999-11-05 | 2000-10-06 | Entladungslampe mit elektrodenhalterung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19953531A DE19953531A1 (de) | 1999-11-05 | 1999-11-05 | Entladungslampe mit Elektrodenhalterung |
DE19953531.0 | 1999-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001035436A1 true WO2001035436A1 (de) | 2001-05-17 |
Family
ID=7928199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003515 WO2001035436A1 (de) | 1999-11-05 | 2000-10-06 | Entladungslampe mit elektrodenhalterung |
Country Status (10)
Country | Link |
---|---|
US (1) | US6634917B1 (de) |
EP (1) | EP1147535B1 (de) |
JP (1) | JP4780887B2 (de) |
KR (1) | KR100465607B1 (de) |
CN (1) | CN1199222C (de) |
AT (1) | ATE285119T1 (de) |
CA (1) | CA2358987C (de) |
DE (2) | DE19953531A1 (de) |
TW (1) | TW493202B (de) |
WO (1) | WO2001035436A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8314538B2 (en) | 2008-02-21 | 2012-11-20 | Osram Ag | Dielectric barrier discharge lamp with a retaining disc |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10222100A1 (de) * | 2002-05-17 | 2003-11-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Dielektrische Barriere-Entladungslampe mit Sockel |
US6971939B2 (en) * | 2003-05-29 | 2005-12-06 | Ushio America, Inc. | Non-oxidizing electrode arrangement for excimer lamps |
US20050218811A1 (en) * | 2004-03-31 | 2005-10-06 | Schulman Michael B | Gas discharge lamp with high-energy vacuum ultraviolet emission |
WO2006000697A2 (fr) * | 2004-06-03 | 2006-01-05 | Dermoptics | Lampe a barrieres de decharge |
TWI384519B (zh) * | 2008-07-31 | 2013-02-01 | Wellypower Optronics Corp | 放電燈管之製作方法 |
DE102009007859A1 (de) | 2009-02-06 | 2010-08-12 | Osram Gesellschaft mit beschränkter Haftung | Dielektrische Barriere-Entladungslampe mit Zentrierelement |
DE102010003352A1 (de) | 2010-03-26 | 2011-09-29 | Osram Gesellschaft mit beschränkter Haftung | Dielektrische Barriere-Entladungslampe mit Haltescheibe |
TWI483285B (zh) | 2012-11-05 | 2015-05-01 | Ind Tech Res Inst | 介電質屏障放電燈及其製作方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5386170A (en) * | 1991-12-09 | 1995-01-31 | Heraeus Noblelight Gmbh | High-power radiator |
DE19636965A1 (de) * | 1996-09-11 | 1998-03-12 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrische Strahlungsquelle und Bestrahlungssystem mit dieser Strahlungsquelle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195253A (en) * | 1975-12-04 | 1980-03-25 | U.S. Philips Corporation | Method of ageing a gas discharge lamp |
GB1592508A (en) * | 1976-12-07 | 1981-07-08 | Tokyo Shibaura Electric Co | Method for manufacturing a luminous tube for discharge lamp |
JPS59163736A (ja) * | 1983-03-07 | 1984-09-14 | Mitsubishi Electric Corp | 放電灯用発光管の製造方法 |
JPS6484564A (en) * | 1987-09-25 | 1989-03-29 | Kyoritsu Denki Kk | Extra-high pressure discharge lamp |
US5133682A (en) * | 1990-11-02 | 1992-07-28 | Gte Products Corporation | Method and mold for fabricating an arc tube for an arc discharge lamp |
DE4311197A1 (de) | 1993-04-05 | 1994-10-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zum Betreiben einer inkohärent strahlenden Lichtquelle |
BE1009761A3 (nl) * | 1995-10-30 | 1997-08-05 | Philips Electronics Nv | Werkwijze voor het vervaardigen van een lagedrukkwikontladingslamp en lagedrukkwikontladingslamp die met een dergelijke werkwijze is te vervaardigen. |
US6087774A (en) * | 1996-10-31 | 2000-07-11 | Kabushiki Kaisha Toshiba | Non-electrode discharge lamp apparatus and liquid treatment apparatus using such lamp apparatus |
JP3240603B2 (ja) * | 1997-07-04 | 2001-12-17 | スタンレー電気株式会社 | 蛍光ランプ |
-
1999
- 1999-11-05 DE DE19953531A patent/DE19953531A1/de not_active Withdrawn
-
2000
- 2000-10-06 CA CA002358987A patent/CA2358987C/en not_active Expired - Fee Related
- 2000-10-06 CN CNB008025762A patent/CN1199222C/zh not_active Expired - Lifetime
- 2000-10-06 WO PCT/DE2000/003515 patent/WO2001035436A1/de active IP Right Grant
- 2000-10-06 EP EP00982957A patent/EP1147535B1/de not_active Expired - Lifetime
- 2000-10-06 JP JP2001537084A patent/JP4780887B2/ja not_active Expired - Lifetime
- 2000-10-06 US US09/869,276 patent/US6634917B1/en not_active Expired - Lifetime
- 2000-10-06 DE DE50008959T patent/DE50008959D1/de not_active Expired - Lifetime
- 2000-10-06 AT AT00982957T patent/ATE285119T1/de not_active IP Right Cessation
- 2000-10-06 KR KR10-2001-7008550A patent/KR100465607B1/ko active IP Right Grant
- 2000-11-04 TW TW089123315A patent/TW493202B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5386170A (en) * | 1991-12-09 | 1995-01-31 | Heraeus Noblelight Gmbh | High-power radiator |
DE19636965A1 (de) * | 1996-09-11 | 1998-03-12 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrische Strahlungsquelle und Bestrahlungssystem mit dieser Strahlungsquelle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8314538B2 (en) | 2008-02-21 | 2012-11-20 | Osram Ag | Dielectric barrier discharge lamp with a retaining disc |
Also Published As
Publication number | Publication date |
---|---|
TW493202B (en) | 2002-07-01 |
CN1199222C (zh) | 2005-04-27 |
DE50008959D1 (de) | 2005-01-20 |
US6634917B1 (en) | 2003-10-21 |
EP1147535B1 (de) | 2004-12-15 |
CN1336000A (zh) | 2002-02-13 |
KR100465607B1 (ko) | 2005-01-13 |
DE19953531A1 (de) | 2001-05-10 |
CA2358987C (en) | 2009-09-22 |
EP1147535A1 (de) | 2001-10-24 |
CA2358987A1 (en) | 2001-05-17 |
JP2003514347A (ja) | 2003-04-15 |
ATE285119T1 (de) | 2005-01-15 |
KR20010101392A (ko) | 2001-11-14 |
JP4780887B2 (ja) | 2011-09-28 |
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