EP0391283A2 - Lampe à décharge à haute pression à double culot - Google Patents

Lampe à décharge à haute pression à double culot Download PDF

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Publication number
EP0391283A2
EP0391283A2 EP90106195A EP90106195A EP0391283A2 EP 0391283 A2 EP0391283 A2 EP 0391283A2 EP 90106195 A EP90106195 A EP 90106195A EP 90106195 A EP90106195 A EP 90106195A EP 0391283 A2 EP0391283 A2 EP 0391283A2
Authority
EP
European Patent Office
Prior art keywords
pressure discharge
discharge lamp
lamp according
length
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.)
Granted
Application number
EP90106195A
Other languages
German (de)
English (en)
Other versions
EP0391283A3 (fr
EP0391283B1 (fr
Inventor
Jürgen Dr. Heider
Achim Gosslar
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 EP0391283A2 publication Critical patent/EP0391283A2/fr
Publication of EP0391283A3 publication Critical patent/EP0391283A3/fr
Application granted granted Critical
Publication of EP0391283B1 publication Critical patent/EP0391283B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals

Definitions

  • the invention relates to a high-pressure discharge lamp according to the preamble of claim 1.
  • Lamps of this type have so far been used only for spotlights and lighting systems for stage, film and television.
  • high power is to be understood in a range of approximately 1000-4000 W.
  • the wall load is of the order of 30 - 60 W / cm2,
  • DE-OS 35 06 295 discloses a high-pressure discharge lamp with a metal halide filling which is suitable for this optical application.
  • these lamps are manufactured without an outer bulb and with the shortest possible electrode spacing (approx. 30 mm).
  • the quartz glass discharge vessel is equipped with very long cylindrical electrode shafts, in which long molybdenum foils are embedded by means of melting.
  • This sophisticated technology which can only be carried out manually, is necessary because when the discharge vessel is burning freely, the temperature at the end of the film near the base, which is exposed to the oxidizing atmospheric oxygen and thus the lamp life, should be below 400 ° C.
  • the cumbersome melting technology makes these lamps very expensive. The lifespan is very limited (approx. 250 hours).
  • this lamp Due to the large arc length and the outer bulb, this lamp is only of limited suitability for optical applications. However, due to the short overall length and low wind load, it is still used for floodlights and building lighting.
  • the object of the invention is to provide a lamp for optical applications of all kinds, which is additionally characterized by high economy and small lamp dimensions and high efficiency and which is also suitable for outdoor lighting.
  • the lamp according to the invention has a very high luminous efficacy (more than 100 lm / W).
  • the service life is extended up to 1500 and more hours by limiting the temperature of the film end near the base to a maximum of 350 ° C (when installed).
  • the pinch seal particularly advantageously prevents the light guide effect (cf. DE-OS 33 19 021), which in the case of the cylindrical seals forces the length to be increased.
  • the invention makes it possible to shorten the overall length of the lamp shaft (by 50%) and the section of the electrode embedded in the pinch (stabilizes, for example, the color temperature). In order to achieve optimal conditions, a balanced compromise was made with regard to current load, film length, film thickness and geometry of the discharge vessel, the use of the new lamp shafts in squeeze technology ultimately proving to be the key to success.
  • the lamp itself is more compact, which enables the construction of smaller lamps. This means a lower wind resistance for headlights, which is of considerable importance for outdoor applications.
  • the lamp shafts according to the invention are considerably longer in comparison to the previously known lamp shafts using squeeze technology.
  • the squeezing process therefore requires maximum precision.
  • Two quartz facing each other and to be squeezed Glass gas rotating gas burners produce a very uniform pinch temperature of 2300 ⁇ 50 ° C thanks to an optimized gas profile, which is generated by four rows of holes with differently sized holes. Larger temperature differences would lead to problematic tensions in the lamp shaft and poor film embedding and thus increase the rejects (early failures).
  • FIG. 1 shows a 2000 W high-pressure discharge lamp 1 with a length of 190 mm, which is intended for use in a reflector, not shown here.
  • the lamp is inserted axially into the reflector, a short overall length being of great importance (cf. FIG. 3 of DE-OS 35 06 295).
  • the very good approximation isothermal discharge vessel 2 made of quartz glass with a wall thickness of approx. 2 mm (or 2.5 mm) is designed as a barrel body, the generatrix of which is an arc with a radius of curvature of 38.25 mm, the wall thickness being towards the central region 3 of the barrel body increases to approx. 3 mm, since here the wall load (approx.
  • the biggest outside diameter of the barrel body is 36 mm, the axial length about 51 mm.
  • the rod-shaped tungsten electrodes 6, the tips of which are spaced 30 mm apart, are each held axially in the lamp shaft 5 and have a double-layer coil 7 in the vicinity of the electrode tip.
  • the lamp shafts 5 have a length of approximately 40 mm and a width of approximately 16 mm.
  • the electrodes 6 are connected to massive power supply lines 9 via molybdenum foils 8, which are melted into the lamp shafts in a vacuum-tight manner by means of an I-shaped pinch seal that encompasses the entire lamp shaft 5.
  • the molybdenum foils 8, which are lenticularly etched in a manner known per se, have a central, maximum thickness of approximately 50 ⁇ m and a length of approximately 30 mm with a width of 8 mm.
  • a ceramic sleeve base 10 is fastened with cement, which consists of a slotted cylindrical holding part 11 and a flattened end body 12 facing the socket.
  • the discharge vessel 2 contains a filling of an inert gas (argon) as the ignition gas and mercury as the main component (approx. 220 mg) as well as the rare earths DyBr3 (1 ⁇ mol) and TmBr3 (0.5 ⁇ mol) per cm3 discharge volume, also 1 ⁇ mol TlBr, 2 ⁇ mol CsBr and 0.5 ⁇ mol ThJ4.
  • the thorium can be replaced by hafnium. Overall, this filling results in a color temperature of approx. 5600 K with a color rendering index of 92 (level 1a).
  • the higher losses of known lamps result from the considerably longer length of the melting (approx. Factor two) and the higher currents (17 - 25 A).
  • the favorable overall design of the 2000 W lamp makes it possible to increase the total light output to 105 lm / W and to achieve an extremely long service life of approx. 2000 hours.
  • the specific arc power is 67 W / mm.
  • the isothermally designed discharge vessel has a maximum bulb temperature of approx. 1030 ° C (hot spot), which drops to 1000 ° C at the cold spot (behind the electrodes at the end of the vessel). At the end of the film, the temperature has dropped to 250 ° C (free-burning). In the headlight, this corresponds to a temperature of 350 ° C.
  • the lamp is manufactured using a cylindrical quartz tube with a wall thickness of 2 mm.
  • the ellipsoid-like shape of the discharge vessel is produced under computer control, the increase in wall thickness in the central area being produced by compression of the tube.
  • the subsequent production of the pinch seal requires a refined pinch technology with this pinch length, as already explained above.
  • FIG. 2 shows a 1000 W lamp as a further exemplary embodiment. Its dimensions correspond to the 2000 W version. The same reference numbers correspond to the same lamp parts.
  • the supply voltage is 220 V with an operating current of 10.3 A.
  • the ends of the discharge vessel are provided with a ZrO 2 coating 13 for the heat accumulation.
  • the filling contains the same components, but the iodine: bromine ratio has shifted in favor of iodine.
  • the lamp fill can also contain other metal halides (eg NaJ, SCJ), which allow different color temperatures.
  • the color locus can be varied within certain limits by carefully selecting the iodine: bromine ratio.
  • the sequence of the squeezing process (FIG. 3) will be described below.
  • the lamp bulb is placed vertically and the electrode system consisting of power supply, foil and electrode is inserted.
  • the lamp shaft located at the bottom, initially still tubular, is now successively brought up to the pinch temperature from the bottom upwards until the discharge volume begins with the aid of two gas burners located opposite one another.
  • the two gas burners B (only one is shown) rotate around the lamp shaft.
  • the softened lamp shaft is held together or even shortened by the surface tension, so that simultaneous heating of the entire lamp shaft is possible without any problems.
  • the film thickness should not exceed 50 ⁇ m. This stiffening by bending is sufficient to hold an extremely long molybdenum foil (30 mm) with electrode shaft and electrode precisely aligned in an interchangeable holder W. During the squeezing process itself, the foil bending is ironed out again.
  • a good stabilization of the color temperature in the lamp described in Fig. 1 (and in Fig. 2) is achieved in that the section 6 'of the electrode, which is embedded in the pinch between the film end and discharge volume, are kept extremely short (3 mm) can.
  • the capillary that forms along this section is considerably shortened and the dead volume thus formed for the cold spot is reduced.
  • the color temperature can therefore be set in a more targeted manner (less scatter) and the drift of the color temperature reduced and shortened during the first several hundred operating hours. This also improves the light yield and maintenance.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP90106195A 1989-04-04 1990-03-30 Lampe à décharge à haute pression à double culot Expired - Lifetime EP0391283B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910878A DE3910878A1 (de) 1989-04-04 1989-04-04 Zweiseitig gesockelte hochdruckentladungslampe
DE3910878 1989-04-04

Publications (3)

Publication Number Publication Date
EP0391283A2 true EP0391283A2 (fr) 1990-10-10
EP0391283A3 EP0391283A3 (fr) 1991-05-02
EP0391283B1 EP0391283B1 (fr) 1994-10-12

Family

ID=6377829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106195A Expired - Lifetime EP0391283B1 (fr) 1989-04-04 1990-03-30 Lampe à décharge à haute pression à double culot

Country Status (6)

Country Link
US (1) US5138227A (fr)
EP (1) EP0391283B1 (fr)
JP (1) JP2831430B2 (fr)
DD (1) DD293449A5 (fr)
DE (2) DE3910878A1 (fr)
HU (1) HU210889B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492205A2 (fr) * 1990-12-20 1992-07-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à halogénure métallique
EP0702394A2 (fr) 1994-09-14 1996-03-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge haute pression à halogénure métallique
WO2005101454A2 (fr) * 2004-04-16 2005-10-27 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Lampe a decharge haute pression et dispositif d'eclairage associe
US7748867B2 (en) 2005-03-21 2010-07-06 Osram Gesellschaft Mit Beschraenkter Haftung Deflection component for a luminaire and associated luminaire
US7973482B2 (en) 2004-04-16 2011-07-05 OSRAM Gesellschaft mit beschraenkler Haftung High-pressure discharge lamp with halogens

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124055A1 (de) * 1991-07-19 1993-01-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe
US5382873A (en) * 1991-12-04 1995-01-17 U.S. Philips Corporation High-pressure discharge lamp with incandescing metal droplets
US5486737A (en) * 1994-04-12 1996-01-23 Osram Sylvania Inc. Heavily loaded double-ended arc lamp
US5825129A (en) * 1996-05-31 1998-10-20 U.S. Philips Corporation High pressure discharge lamp having pirch seals
JPH1074489A (ja) * 1996-08-30 1998-03-17 Matsushita Electron Corp メタルハライドランプ
BE1010356A6 (fr) * 1997-01-10 1998-06-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Lampe a decharge a haute pression a culot.
JPH10283993A (ja) * 1997-04-03 1998-10-23 Matsushita Electron Corp メタルハライドランプ
JP3085303B1 (ja) * 1999-07-05 2000-09-04 ウシオ電機株式会社 放電ランプ
JP3657465B2 (ja) * 1999-07-07 2005-06-08 株式会社小糸製作所 アークチューブの製造方法
US6857926B1 (en) * 2000-06-19 2005-02-22 Advanced Lighting Technologies, Inc. Method of making arc tubes
JP3687582B2 (ja) * 2001-09-12 2005-08-24 ウシオ電機株式会社 放電ランプ
US6669521B2 (en) * 2001-09-26 2003-12-30 Osram Sylvania Inc. Method of removing contaminants from a double-ended arc discharge tube
US6661172B2 (en) 2002-01-11 2003-12-09 General Electric Company Electrode assembly and lamp with conductor foil
JP2006253048A (ja) * 2005-03-14 2006-09-21 Osram-Melco Ltd 反射鏡付放電ランプ
DE102007008696B3 (de) * 2007-02-20 2008-10-02 Heraeus Noblelight Gmbh Infrarotstrahler mit opakem Reflektor und seine Herstellung
US20100117533A1 (en) * 2007-04-13 2010-05-13 Koninklijke Philips Electronics N.V. Discharge lamp comprising a monoxide radiation emitting material
WO2008126021A2 (fr) * 2007-04-13 2008-10-23 Koninklijke Philips Electronics N.V. Lampe à décharge comprenant des électrodes et une matière émettant un rayonnement provenant d'un monoxyde
CN101399152B (zh) * 2007-09-26 2010-05-26 上海亚明灯泡厂有限公司 超高显色超高色温的金属卤化物灯
US7893619B2 (en) * 2008-07-25 2011-02-22 General Electric Company High intensity discharge lamp
US10211042B2 (en) * 2016-12-04 2019-02-19 Allstate Garden Supply Double-ended high intensity discharge lamp and manufacturing method thereof
US9875886B1 (en) * 2016-12-04 2018-01-23 Robert Su Double-ended ceramic metal halide lamp

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924731A (en) * 1957-04-08 1960-02-09 Gen Electric Double ended high pressure discharge lamp
US3654506A (en) * 1969-08-08 1972-04-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure mercury vapor discharge lamp with metal halide additive
FR2125360A1 (fr) * 1971-02-11 1972-09-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
JPS5519733A (en) * 1978-07-28 1980-02-12 Mitsubishi Electric Corp High voltage mercury gas discharge lamp
SU963119A1 (ru) * 1980-12-26 1982-09-30 За внтел.ь - ti Ki3lA« 1 - : 1Л1Ш«ТНО - хтцЕсмп «НКЛИвТЕКА Токоввод в кварцевую колбу лампы
JPS5851457A (ja) * 1981-09-22 1983-03-26 Toshiba Corp 小形メタルハライドランプ
EP0159620A2 (fr) * 1984-04-19 1985-10-30 General Electric Company Lampe à halogène métallique et systèmes d'illumination surtout fait pour illumination architectonique
EP0169510A2 (fr) * 1984-07-24 1986-01-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à halogénure métallique
DE8805183U1 (de) * 1988-04-19 1988-07-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe
FR2620267A1 (fr) * 1987-09-04 1989-03-10 Philips Nv Lampe a decharge dans le gaz a haute pression et appareil muni de cette lampe

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842307A (en) * 1971-02-11 1974-10-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure mercury vapor discharge lamp with metal halide additives
FR2310630A1 (fr) * 1975-05-07 1976-12-03 Central Eclairage Lab Lampe a arc court
SU694919A1 (ru) * 1978-05-31 1979-10-30 Предприятие П/Я 5907 Металлогалоидна лампа
JPS5519732A (en) * 1978-07-27 1980-02-12 Matsushita Electronics Corp Electron gun
US4389201A (en) * 1979-03-12 1983-06-21 General Electric Company Method of manufacturing a lamp
US4254356A (en) * 1979-04-23 1981-03-03 General Electric Company Inlead and method of making a discharge lamp
US4396857A (en) * 1980-07-01 1983-08-02 General Electric Company Arc tube construction
GB2122024B (en) * 1982-05-28 1986-01-29 Gen Electric Co Plc Lamp stems
DE3506295A1 (de) * 1985-02-22 1986-08-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kompakte hochdruckentladungslampe
DE3544825A1 (de) * 1985-12-18 1987-06-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Lampe mit einem kolben aus hochkieselsaeurehaltigem glas
JPH0418200Y2 (fr) * 1986-06-05 1992-04-23
JPS6433151U (fr) * 1987-08-25 1989-03-01
US4983889A (en) * 1989-05-15 1991-01-08 General Electric Company Discharge lamp using acoustic resonant oscillations to ensure high efficiency

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924731A (en) * 1957-04-08 1960-02-09 Gen Electric Double ended high pressure discharge lamp
US3654506A (en) * 1969-08-08 1972-04-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure mercury vapor discharge lamp with metal halide additive
FR2125360A1 (fr) * 1971-02-11 1972-09-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
JPS5519733A (en) * 1978-07-28 1980-02-12 Mitsubishi Electric Corp High voltage mercury gas discharge lamp
SU963119A1 (ru) * 1980-12-26 1982-09-30 За внтел.ь - ti Ki3lA« 1 - : 1Л1Ш«ТНО - хтцЕсмп «НКЛИвТЕКА Токоввод в кварцевую колбу лампы
JPS5851457A (ja) * 1981-09-22 1983-03-26 Toshiba Corp 小形メタルハライドランプ
EP0159620A2 (fr) * 1984-04-19 1985-10-30 General Electric Company Lampe à halogène métallique et systèmes d'illumination surtout fait pour illumination architectonique
EP0169510A2 (fr) * 1984-07-24 1986-01-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à halogénure métallique
FR2620267A1 (fr) * 1987-09-04 1989-03-10 Philips Nv Lampe a decharge dans le gaz a haute pression et appareil muni de cette lampe
DE8805183U1 (de) * 1988-04-19 1988-07-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 4, no. 48 (E-6)(530) & JP-A-55 019 733 (MITSUBISHI) 12 Februar 1980 *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 136 (E-181)(1281) 14 Juni 1983, & JP-A-58 051 457 (TOKYO SHIBAURA) 26 März 1983 *
SOVIET INVENTIONS ILLUSTRATED Week 32, Abstract 1983-733529/32, 21/09/1983 & SU-A-963119 (ABRAMYAN) - 30/09/1982 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492205A2 (fr) * 1990-12-20 1992-07-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à halogénure métallique
EP0492205B1 (fr) * 1990-12-20 1996-10-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à halogénure métallique
EP0702394A2 (fr) 1994-09-14 1996-03-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge haute pression à halogénure métallique
WO2005101454A2 (fr) * 2004-04-16 2005-10-27 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Lampe a decharge haute pression et dispositif d'eclairage associe
WO2005101454A3 (fr) * 2004-04-16 2006-08-24 Lampen Mbh Patent Treuhand Ges Lampe a decharge haute pression et dispositif d'eclairage associe
US7973482B2 (en) 2004-04-16 2011-07-05 OSRAM Gesellschaft mit beschraenkler Haftung High-pressure discharge lamp with halogens
US7748867B2 (en) 2005-03-21 2010-07-06 Osram Gesellschaft Mit Beschraenkter Haftung Deflection component for a luminaire and associated luminaire

Also Published As

Publication number Publication date
HUT53734A (en) 1990-11-28
HU210889B (en) 1995-09-28
EP0391283A3 (fr) 1991-05-02
DE59007417D1 (de) 1994-11-17
HU902063D0 (en) 1990-07-28
JP2831430B2 (ja) 1998-12-02
EP0391283B1 (fr) 1994-10-12
DD293449A5 (de) 1991-08-29
DE3910878A1 (de) 1990-10-11
JPH02288150A (ja) 1990-11-28
US5138227A (en) 1992-08-11

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