WO1998038668A1 - Verfahren zur herstellung einer hochdruckentladungslampe - Google Patents
Verfahren zur herstellung einer hochdruckentladungslampe Download PDFInfo
- Publication number
- WO1998038668A1 WO1998038668A1 PCT/DE1997/002255 DE9702255W WO9838668A1 WO 1998038668 A1 WO1998038668 A1 WO 1998038668A1 DE 9702255 W DE9702255 W DE 9702255W WO 9838668 A1 WO9838668 A1 WO 9838668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- discharge lamp
- pressure discharge
- shot
- producing
- Prior art date
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
- H01J9/32—Sealing leading-in conductors
- H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
-
- 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
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
-
- 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 method for producing a high-pressure discharge lamp according to the preamble of patent claim 1.
- Such a manufacturing method is disclosed for example in the international patent application PCT / DE94 / 00600.
- This patent application describes a high-pressure discharge lamp with a base on one side and a production method for a high-pressure discharge lamp with a base on one side, which has a discharge vessel sealed at two ends with an ionizable filling enclosed therein and two electrodes arranged therein, the base-side end of the discharge vessel having a tubular extension in which the base-side Power supply runs.
- This base-side power supply is sealed gas-tight in the base-side discharge vessel end. It connects the lamp electrode on the base to the corresponding base contact.
- the space between the base-side power supply and the inner wall of the tubular extension is empty here, that is, filled with air.
- the high-voltage discharge lamp is usually supplied with the ignition voltage required to ignite it for safety reasons via the base-side power supply, while the base-side current feedback connected to the base-remote electrode is at ground potential. It has been shown that the electrical insulation of the pipe-like connections Extension of the base-side discharge vessel of the base-side power supply is not sufficient in every case.
- a prefabricated discharge vessel with an ionizable filling enclosed therein and electrodes arranged therein, which has at least one sealed end and at least one power lead protruding from this sealed end, is provided, the at least one sealed end of the discharge vessel having a tubular, has one-sided open extension in which the at least one power supply runs.
- the manufacturing method according to the invention contains the following two additional manufacturing steps according to the invention: - Filling glass shot into the tubular extension so that the space between the at least one power supply and the tubular extension is filled with glass shot - Closing the tubular extension by supplying heat.
- the glass shot is advantageously compressed by filling it into the tubular extension and before closing the tubular extension by means of a vibrator.
- the glass shot advantageously consists of glass beads or glass particles, the diameter or grain size of which is not more than 0.3 mm and is particularly advantageously between 0.03 mm and 0.15 mm.
- the space between the at least one power supply running in the tubular extension and the inner wall of the tubular extension can thus be optimally filled.
- Soft or hard glass which has sufficient heat resistance and is an excellent electrical insulator is advantageously used as the glass shot material.
- the use of hard glass has the advantage over soft glass that the thermal expansion coefficient of the hard glass is closer to the thermal expansion coefficient of the quartz glass of the tubular extension of the discharge vessel than that of the soft glass, so that there is less tendency to form cracks or cracks in the tubular extension consists.
- the glass particles on the surface of the glass shot filling are advantageously heated.
- the glass particles lying on the surface of the shot glass filling sinter or fuse with one another and with the inner wall of the tubular extension.
- the sintered or fused glass particles form a plug that closes the tubular extension and prevents loss of the unsintered shot glass filling.
- sintering means - in contrast to melting - that the glass particles of the shot glass filling are heated to such an extent that they soften and stick together without losing their shape due to the heating.
- the sintering of the glass particles takes place at a lower temperature, namely at the softening temperature Glass particles than the melting of the glass particles instead. Sintering the glass particles therefore requires less energy than melting the glass particles and is therefore preferably used.
- Figure 1 is a schematic side view of a high-pressure discharge lamp manufactured by the method according to the invention
- FIG. 2 shows the discharge vessel of the high-pressure discharge lamp from FIG. 1 manufactured by the method according to the invention
- the high-pressure discharge lamp shown in FIGS. 1 and 2 and produced by the method according to the invention is a high-pressure discharge lamp for a motor vehicle headlight which is capped on one side.
- the structure of this high-pressure discharge lamp is shown schematically in FIG. 1.
- the lamp has a discharge vessel 1 made of quartz glass which is sealed on both sides and in which an ionizable filling is enclosed in a gastight manner.
- the ionizable filling contains xenon and metal halide compounds.
- the two ends 1 a, 1 b of the discharge vessel 1 are each sealed by means of a molybdenum foil melt 2a, 2b.
- In the interior of the discharge vessel 1 there are two electrodes E1, E2, between which the discharge arc responsible for the light emission is formed during lamp operation.
- the electrodes E1, E2 are each electrically conductive with an electrical connection of the lamp via one of the molybdenum foil melts 2a, 2b and via the current supply line 3a remote from the base or via the current return 3b on the base side. pensockels 4 connected.
- the discharge vessel 1 is enveloped by a glass outer bulb 5.
- the outer bulb 5 has one in the base
- the discharge vessel 1 has a tubular extension 1 c made of quartz glass on the base side, in which the base-side power supply line 3 b runs.
- a detailed description of the structure of this lamp can be found, for example, in published patent application EP 0 696 046.
- a structural unit is first of all made up of a discharge vessel 1 with double ends sealed by means of molybdenum foil melts 2a, 2b and provided at the base-side end 1 b with a tubular extension 1 c, with an ionizable filling enclosed therein and electrodes E1, E2 and one arranged therein outer bulb attached to discharge vessel 1
- This structural unit also includes the two current leads 3a, 3b protruding from the discharge vessel ends 1 a, 1 b.
- the base-side power supply 3b runs in a zigzag shape within the tubular extension 1 c.
- glass shot 6 is filled, which fills the space between the base-side power supply 3b and the inner wall of the tube-like extension 1 c.
- the glass shot 6 consists of tempered glass particles or tempered glass beads of different sizes.
- the maximum grain or particle size or the maximum diameter of the hard glass shot particles is 0.03 mm to 0.15 mm.
- the glass shot filling 6 extends from the sealed base end 1 b of the discharge vessel 1 to approximately 2 mm to 5 mm below the open end of the tubular extension 1 c.
- the glass shot beads 6a lying on the surface of the glass shot filling 6, that is to say the glass shot particles 6a last filled in and defining the filling edge, are heated with the aid of a gas burner to such an extent that they are joined together and with the Sinter the inner wall of the tubular extension 1 c.
- the glass shot particles 6a are heated to a temperature of at least 750 ° C. At this temperature, the glass shot particles 6a soften without losing their shape and stick together.
- the glass shot particles 6a treated in this way are sintered to one another and to the inner wall of the tubular extension 1 c.
- the sintering zone 6a has a depth or length of approximately 2 mm to 10 mm.
- the sintered glass particles 6a form a plug that closes the open end of the tubular extension 1 c and prevents the unsintered glass shot filling 6 from falling out.
- the base of the structural unit consisting of the discharge vessel 1 and the outer bulb 5 is carried out in a known manner. It is described, for example, in patent application EP 0 696 046.
- the entire glass shot filling 6 can also be heated and sintered together.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97910245A EP0896731A1 (de) | 1997-02-26 | 1997-10-01 | Verfahren zur herstellung einer hochdruckentladungslampe |
US09/171,412 US6071164A (en) | 1997-02-26 | 1997-10-01 | Method for producing a high-pressure discharge lamp |
JP10537131A JP2000509895A (ja) | 1997-02-26 | 1997-10-01 | 高圧放電ランプの製造方法 |
HU9901283A HU220259B (hu) | 1997-02-26 | 1997-10-01 | Eljárás nagynyomású kisülőlámpa előállítására és az eljárással előállított nagynyomású kisülőlámpa |
KR1019980708496A KR20000064989A (ko) | 1997-02-26 | 1997-10-01 | 고압 방전 램프 제조 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19707669A DE19707669A1 (de) | 1997-02-26 | 1997-02-26 | Verfahren zur Herstellung einer Hochdruckentladungslampe |
DE19707669.6 | 1997-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998038668A1 true WO1998038668A1 (de) | 1998-09-03 |
Family
ID=7821528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002255 WO1998038668A1 (de) | 1997-02-26 | 1997-10-01 | Verfahren zur herstellung einer hochdruckentladungslampe |
Country Status (9)
Country | Link |
---|---|
US (1) | US6071164A (de) |
EP (1) | EP0896731A1 (de) |
JP (1) | JP2000509895A (de) |
KR (1) | KR20000064989A (de) |
CN (1) | CN1104021C (de) |
CA (1) | CA2247523A1 (de) |
DE (1) | DE19707669A1 (de) |
HU (1) | HU220259B (de) |
WO (1) | WO1998038668A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3503575B2 (ja) * | 2000-06-06 | 2004-03-08 | ウシオ電機株式会社 | ショートアーク型超高圧放電ランプ及びその製造方法 |
US6729925B2 (en) * | 2001-01-24 | 2004-05-04 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing discharge tube and discharge lamp |
JP3917010B2 (ja) * | 2002-06-06 | 2007-05-23 | 株式会社小糸製作所 | 放電ランプ装置用アークチューブの製造方法 |
WO2009046749A1 (de) * | 2007-10-02 | 2009-04-16 | Osram Gesellschaft mit beschränkter Haftung | Elektrische lampe mit einem lampenkolben und verfahren zum herstellen einer elektrischen lampe |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5252888A (en) * | 1991-12-30 | 1993-10-12 | Gte Products Corporation | Lamp capsule support base |
US5432399A (en) * | 1991-10-14 | 1995-07-11 | Koito Manufacturing Co., Ltd. | Discharge lamp apparatus |
EP0696046A2 (de) * | 1994-08-04 | 1996-02-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Einseitig gesockelte Hochdruckentladungslampe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4317369A1 (de) * | 1993-05-25 | 1994-12-01 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Hochdruckentladungslampe und Herstellungsverfahren für eine Hochdruckentladungslampe |
KR100382059B1 (ko) * | 1995-12-18 | 2003-07-18 | 삼성에스디아이 주식회사 | 메탈할라이드램프제조방법 |
-
1997
- 1997-02-26 DE DE19707669A patent/DE19707669A1/de not_active Withdrawn
- 1997-10-01 CA CA002247523A patent/CA2247523A1/en not_active Abandoned
- 1997-10-01 CN CN97194106.8A patent/CN1104021C/zh not_active Expired - Fee Related
- 1997-10-01 EP EP97910245A patent/EP0896731A1/de not_active Withdrawn
- 1997-10-01 US US09/171,412 patent/US6071164A/en not_active Expired - Fee Related
- 1997-10-01 WO PCT/DE1997/002255 patent/WO1998038668A1/de not_active Application Discontinuation
- 1997-10-01 KR KR1019980708496A patent/KR20000064989A/ko not_active Application Discontinuation
- 1997-10-01 JP JP10537131A patent/JP2000509895A/ja active Pending
- 1997-10-01 HU HU9901283A patent/HU220259B/hu not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5432399A (en) * | 1991-10-14 | 1995-07-11 | Koito Manufacturing Co., Ltd. | Discharge lamp apparatus |
US5252888A (en) * | 1991-12-30 | 1993-10-12 | Gte Products Corporation | Lamp capsule support base |
EP0696046A2 (de) * | 1994-08-04 | 1996-02-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Einseitig gesockelte Hochdruckentladungslampe |
Also Published As
Publication number | Publication date |
---|---|
CN1104021C (zh) | 2003-03-26 |
EP0896731A1 (de) | 1999-02-17 |
CN1217086A (zh) | 1999-05-19 |
CA2247523A1 (en) | 1998-09-03 |
JP2000509895A (ja) | 2000-08-02 |
HUP9901283A3 (en) | 2000-09-28 |
US6071164A (en) | 2000-06-06 |
HU220259B (hu) | 2001-11-28 |
DE19707669A1 (de) | 1998-08-27 |
KR20000064989A (ko) | 2000-11-06 |
HUP9901283A2 (hu) | 1999-08-30 |
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