EP1708244A1 - Metal halide lamp - Google Patents
Metal halide lamp Download PDFInfo
- Publication number
- EP1708244A1 EP1708244A1 EP06006769A EP06006769A EP1708244A1 EP 1708244 A1 EP1708244 A1 EP 1708244A1 EP 06006769 A EP06006769 A EP 06006769A EP 06006769 A EP06006769 A EP 06006769A EP 1708244 A1 EP1708244 A1 EP 1708244A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal halide
- filling
- halide lamp
- lamp according
- outer bulb
- 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
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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
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
-
- 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
- H01J61/827—Metal halide arc lamps
Definitions
- the invention is based on a metal halide lamp for a high-pressure discharge lamp according to the preamble of claim 1. These are in particular fillings for lamps with daylight-like light color.
- metal halide discharge lamps usually contain thallium.
- a lamp that contains a metal halide filling with the metals Cs, TI, and rare earths such as Dy, Tm, Ho and has a daylight-like light color.
- the filling may contain metal halides with the metals Cs, TI, and rare earths such as Dy, Tm, Ho. Mn is used as a substitute for Na. The purpose is to lower the color temperature.
- off DE-A 35 12 757 discloses a filling for metal halide lamps containing a metal silicide such as V 5 Si 3 .
- the filling contains rare earth or Sc halide and the corresponding rare earth oxychloride ⁇ / o Sc oxide.
- the silicide acts here as a halogen getter.
- a metal halide filling which uses Cs, Tl, and rare earths and additionally V halide. It is dispensed with other components with other halides.
- the halogen used is iodine and / or bromine.
- Mn is omitted because no lowering of the color temperature is sought and because on the contrary a rather high color temperature of at least 5000 K is sought.
- the color temperature is set mainly by the rare earths.
- the remedy here is precisely metered addition of vanadium halide.
- a filling which contains between 0.1 and 2.5 mg of rare earth halides per ml volume of the discharge vessel. A value of 0.2 to 2.0 mg / ml is preferred.
- Particularly suitable rare earths are Dy, Ho and Tm, alone or in combination. Especially suitable is Dy alone.
- the molar ratio between rare earths and vanadium should be between 1.5 and 30, in particular 2 and 20. Since both sizes are trivalent, this range also applies to the associated metal halides.
- the filling contains more iodine than bromine. In particular, iodine is used alone, with a maximum of 10% bromine content, molar seen.
- This filling is particularly suitable for high-wattage lamps with at least 100 W rated power. It is particularly suitable for lamps with a relatively high nominal listing up to 400 W.
- FIG. 1 shows the side view of a metal halide lamp 1 which has been crushed on two sides.
- the discharge vessel 2 made of quartz glass, designed as a barrel body, encloses two electrodes 3 together with a metal halide filling.
- the piston ends are sealed by pinches 4, are embedded in the foils 5.
- a seal is also suitable as a seal.
- the outer power supply 6 is guided in a tubular sleeve 7 and ends in a socket 8 of an integral base part 9.
- the base is made in one piece of steel or other heat-resistant metal and also comprises a circular disk 10 as a contact element and barbs 11 as a centering and support.
- the bulbous part of the discharge vessel is partially surrounded by an outer bulb 12 which is rolled up in the region of the transition between the pinch seal 4 and the sleeve 7 (FIG. 13).
- the outer bulb 12 has a circumferential dent 14, so that an elastic carrier tape 15 made of metal is spread apart on the inner surface of the outer bulb.
- the carrier tape may, if necessary, contain gettering materials such as Zr, Fe, V, Co. They are used to absorb various substances such as oxygen, hydrogen, etc.
- the outer bulb can be filled with nitrogen, another inert gas or vacuum.
- an outer bulb gas mixture of N 2 and / or CO 2 with Ne is used, the total pressure being between 200 and 900 mbar.
- a Ne-Ar, Ne-Kr or Ne-Ar-Kr Penning mixture is used as the starting gas in the burner.
- an outer bulb gas mixture N 2 / Ne or CO 2 / Ne with 300 mbar to 900 mbar total pressure is used to maintain the good ignition properties during the lifetime.
- the Ne share is between 25 and 60%.
- Fig. 2 shows the spectrum of a 150 W lamp with 100 h burning time according to the embodiment of FIG. 1, the discharge vessel contains 15 mg Hg and the metal halide according to Tab. 1.
- the filling in the outer bulb is argon.
- the lamp uses Dy alone as a rare earth. Good results are also obtained with an addition of Tm and Ho, when Dy is used predominantly with more than 50% proportion.
- FIG. 3 shows the change in the luminous flux LS (FIG. 3a, curve a) and the color temperature Tn (FIG. 3b, curve a) of the lamp from FIG. 1 as a function of the service life. Both parameters are extremely stable up to a lifetime of at least 6000 hours.
- Tab. 1 another embodiment is shown, which relates to a 250 W and a 400 W lamp with daylight filling. In both cases, the filling is constructed similar to the 150W embodiment.
- the corresponding curves of the luminous flux and the color temperature are shown in FIGS. 3a and 3b as curves b) for the 250 W exemplary embodiment and c) for the 400 W exemplary embodiment.
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
Die Erfindung geht aus von einer Metallhalogenidlampe für eine Hochdruckentladungslampe gemäß dem Oberbegriff des Anspruchs 1. Es handelt sich dabei insbesondere um Füllungen für Lampen mit tageslichtähnlicher Lichtfarbe.The invention is based on a metal halide lamp for a high-pressure discharge lamp according to the preamble of
Zur Erzielung tageslichtähnlicher Lichtfarben enthalten Metallhalogenidentladungslampen meist Thallium. Zum Beispiel beschreibt die
Außerdem ist aus
Schließlich ist aus
Aus der
Es ist Aufgabe der vorliegenden Erfindung, eine Metallhalogenidfüllung für Metallhalogenidentladungslampen gemäß dem Oberbegriff des Anspruchs 1 bereitzustellen, die an die besonderen Bedingungen eines Außenkolbens angepasst sind.It is an object of the present invention to provide a metal halide filling for metal halide discharge lamps according to the preamble of
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.This object is solved by the characterizing features of
Erfindungsgemäß wird eine Metallhalogenidfüllung verwendet, die Cs, TI, und Seltene Erden und zusätzlich V-Halogenid verwendet. Dabei wird auf andere Komponenten mit weiteren Halogeniden verzichtet. Als Halogen wird Jod und/oder Brom verwendet. Auf Mn wird verzichtet, weil keine Absenkung der Farbtemperatur angestrebt wird und weil ganz im Gegenteil eine eher hohe Farbtemperatur von mindestens 5000 K angestrebt wird. Bei dieser Zielsetzung wird die Farbtemperatur hauptsächlich durch die Seltenen Erden eingestellt.According to the invention, a metal halide filling is used which uses Cs, Tl, and rare earths and additionally V halide. It is dispensed with other components with other halides. The halogen used is iodine and / or bromine. On Mn is omitted because no lowering of the color temperature is sought and because on the contrary a rather high color temperature of at least 5000 K is sought. With this objective, the color temperature is set mainly by the rare earths.
Bei der Herstellung von Metallhalogenidlampen mit Entladungsgefäßen aus Quarzglas hat sich gezeigt, dass erhebliche Kosteneinsparungen durch ein neues Konzept mit Außenkolben erzielt werden können, bei dem der Außenkolben das Entladungsgefäß nur teilweise umgibt. Dabei wird eine Gasfüllung im Außenkolben verwendet. Dies führt jedoch zu einem veränderten Temperaturhaushalt des Entladungsgefäßes. Die bisher übliche Füllung aus Metallhalogeniden von Cs, TI und Seltenen Erden ist unter diesen Bedingungen zu grünstichig.In the manufacture of metal halide lamps with quartz glass discharge vessels, it has been found that significant cost savings can be achieved by a new outer bulb concept in which the outer envelope only partially surrounds the discharge vessel. In this case, a gas filling is used in the outer bulb. However, this leads to a change in the temperature of the discharge vessel. The usual filling of metal halides of Cs, TI and rare earths is too greenish under these conditions.
Abhilfe schafft hier die genau dosierte Zugabe von Vanadiumhalogenid. Dabei wird eine Füllung verwendet, die zwischen 0,1 und 2,5 mg Seltenerd-Halogenide pro ml Volumen des Entladungsgefäßes enthält. Bevorzugt ist ein Wert von 0,2 bis 2,0 mg/ml. Als Seltene Erden eignen sich insbesondere Dy, Ho und Tm allein oder in Kombination. Besonders geeignet ist Dy allein.The remedy here is precisely metered addition of vanadium halide. In this case, a filling is used which contains between 0.1 and 2.5 mg of rare earth halides per ml volume of the discharge vessel. A value of 0.2 to 2.0 mg / ml is preferred. Particularly suitable rare earths are Dy, Ho and Tm, alone or in combination. Especially suitable is Dy alone.
Das molare Verhältnis zwischen Seltenen Erden und Vanadium soll zwischen 1,5 und 30, insbesondere 2 und 20, liegen. Da beide Größen dreiwertig sind, gilt dieser Bereich auch für die zugehörigen Metallhalogenide. Bevorzugt enthält die Füllung mehr Jod als Brom. Insbesondere wird Jod allein verwendet, mit maximal 10 % Brom-Anteil, molar gesehen.The molar ratio between rare earths and vanadium should be between 1.5 and 30, in particular 2 and 20. Since both sizes are trivalent, this range also applies to the associated metal halides. Preferably, the filling contains more iodine than bromine. In particular, iodine is used alone, with a maximum of 10% bromine content, molar seen.
Bei Überschreiten der absoluten Füllmenge für Seltene Erden wird die Farbtemperatur zu niedrig. Bei Unterschreiten der absoluten Füllmenge für Seltene Erden wird die Farbtemperatur zu hoch.When the absolute filling quantity for rare earths is exceeded, the color temperature becomes too low. When falling below the absolute capacity for rare earths the color temperature becomes too high.
Bei Überschreiten des molaren Verhältnisses von SE zu V wird die γ-Komponente des Farborts zu hoch und der Farbort zu grünstichig. Bei Unterschreiten des molaren Verhältnisses von SE zu V wird der Lichtstrom zu niedrig.When the molar ratio of SE to V is exceeded, the γ component of the color locus becomes too high and the color locus too greenish. When the molar ratio of SE to V falls below the luminous flux becomes too low.
Diese Füllung eignet sich insbesondere für höherwattige Lampen mit mindestens 100 W Nennleistung. Sie eignet sich insbesondere auch für Lampen mit relativ hoher Nennlistung bis 400 W.This filling is particularly suitable for high-wattage lamps with at least 100 W rated power. It is particularly suitable for lamps with a relatively high nominal listing up to 400 W.
Im folgenden soll die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert werden. Es zeigen:
Figur 1- eine Metallhalogenidlampe gemäß der Erfindung;
Figur 2- ein Spektrum dieser Lampe
Figur 3- die Änderung der Farbtemperatur mit der Lebensdauer dieser Lampe;
- FIG. 1
- a metal halide lamp according to the invention;
- FIG. 2
- a spectrum of this lamp
- FIG. 3
- the change in color temperature with the life of that lamp;
Figur 1 zeigt die seitliche Ansicht einer zweiseitig gequetschten Metallhalogenidlampe 1. Das als Tonnenkörper ausgebildete Entladungsgefäß 2 aus Quarzglas schließt zwei Elektroden 3 nebst einer Metallhalogenidfüllung ein. Die Kolbenenden sind durch Quetschungen 4 abgedichtet, in die Folien 5 eingebettet sind. Als Abdichtung eignet sich auch eine Einschmelzung. Diese sind mit äußeren Stromzuführungen 6 verbunden. Die äußere Stromzuführung 6 ist in einer rohrförmigen Hülse 7 geführt und endet in einer Buchse 8 eines integralen Sockelteils 9. Der Sockel ist einteilig aus Stahl oder anderem wärmebeständigem Metall gefertigt und umfasst außerdem eine Kreisscheibe 10 als Kontaktelement und Widerhaken 11 als Zentrierung und Halterung. Der bauchige Teil des Entladungsgefäßes ist von einem Außenkolben 12 teilweise umgeben, der im Bereich des Übergangs zwischen der Quetschung 4 und der Hülse 7 aufgerollt (13) ist.FIG. 1 shows the side view of a
Der Außenkolben 12 weist eine umlaufende Delle 14 auf, so dass ein elastisches Trägerband 15 aus Metall an der inneren Oberfläche des Außenkolbens eingespreizt ist. Das Trägerband kann, falls nötig, Gettermaterialen wie Zr, Fe, V, Co enthalten. Sie dienen zum Absorbieren verschiedener Stoffe wie Sauerstoff, Wasserstoff, o.ä. Der Außenkolben kann mit Stickstoff, einem anderen inerten Gas oder auch Vakuum befüllt sein.The
In einem anderen Ausführungsbeispiel wird zur Verbesserung der Zündeigenschaften ein Außenkolbengasgemisch von N2 und/oder CO2 mit Ne verwendet, wobei der Gesamtdruck zwischen 200 und 900 mbar liegt. Als Startgas im Brenner wird in diesem Fall ein Ne-Ar-, Ne-Kr- oder Ne-Ar-Kr-Penninggemisch eingesetzt. insbesondere wird zur Aufrechterhaltung der guten Zündeigenschaften während der Lebensdauer ein Außenkolbengasgemisch N2 / Ne oder CO2 /Ne mit 300 mbar bis 900 mbar Gesamtdruck verwendet. Der Ne-Anteil liegt dabei zwischen 25 und 60%.In another embodiment, to improve the ignition properties, an outer bulb gas mixture of N 2 and / or CO 2 with Ne is used, the total pressure being between 200 and 900 mbar. In this case, a Ne-Ar, Ne-Kr or Ne-Ar-Kr Penning mixture is used as the starting gas in the burner. In particular, an outer bulb gas mixture N 2 / Ne or CO 2 / Ne with 300 mbar to 900 mbar total pressure is used to maintain the good ignition properties during the lifetime. The Ne share is between 25 and 60%.
Fig. 2 zeigt das Spektrum einer 150 W Lampe mit 100 h Brenndauer nach dem Ausführungsbeispiel gemäß Fig. 1, deren Entladungsgefäß 15 mg Hg und die Metallhalogenidfüllung nach Tab. 1 enthält. Die Füllung im Außenkolben ist Argon.Fig. 2 shows the spectrum of a 150 W lamp with 100 h burning time according to the embodiment of FIG. 1, the discharge vessel contains 15 mg Hg and the metal halide according to Tab. 1. The filling in the outer bulb is argon.
Die Lampe verwendet als Seltene Erde Dy allein. Gute Ergebnisse werden auch mit einer Zugabe an Tm und Ho erzielt, wenn Dy überwiegend mit mehr als 50 % Anteil verwendet wird.The lamp uses Dy alone as a rare earth. Good results are also obtained with an addition of Tm and Ho, when Dy is used predominantly with more than 50% proportion.
Fig. 3 zeigt die Änderung des Lichtstroms LS (Figur 3a, Kurve a) und der Farbtemperatur Tn (Figur 3b, Kurve a) der Lampe aus Figur 1 als Funktion der Lebensdauer. Beide Kenngrößen sind bis zu einer Lebensdauer von mindestens 6000 Std. äußerst stabil.FIG. 3 shows the change in the luminous flux LS (FIG. 3a, curve a) and the color temperature Tn (FIG. 3b, curve a) of the lamp from FIG. 1 as a function of the service life. Both parameters are extremely stable up to a lifetime of at least 6000 hours.
In Tab. 1 ist ein weiteres Ausführungsbeispiel gezeigt, das eine 250 W und eine 400 W-Lampe mit Tageslichtfüllung betrifft. In beiden Fällen ist die Füllung ähnlich wie die 150W Ausführungsbeispiel aufgebaut. Die entsprechenden Verläufe des Lichtstroms und der Farbtemperatur sind in Figur 3a und 3 b als Kurven b) für das 250 W Ausführungsbeispiel und c) für das 400 W Ausführungsbeispiel eingezeichnet.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005005202U DE202005005202U1 (en) | 2005-04-01 | 2005-04-01 | metal halide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1708244A1 true EP1708244A1 (en) | 2006-10-04 |
EP1708244B1 EP1708244B1 (en) | 2012-05-02 |
Family
ID=36678582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06006769A Not-in-force EP1708244B1 (en) | 2005-04-01 | 2006-03-30 | Metal halide lamp |
Country Status (7)
Country | Link |
---|---|
US (1) | US7595593B2 (en) |
EP (1) | EP1708244B1 (en) |
JP (1) | JP5041269B2 (en) |
CN (1) | CN201576649U (en) |
AT (1) | ATE556425T1 (en) |
CA (1) | CA2541525A1 (en) |
DE (1) | DE202005005202U1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005026208A1 (en) * | 2005-06-07 | 2006-12-14 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Metal halide high-pressure discharge lamp |
DE102006025947A1 (en) * | 2006-06-02 | 2007-12-06 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Metal halide filling for a high pressure electric discharge lamp and associated lamp |
US20110198994A1 (en) * | 2008-10-15 | 2011-08-18 | Koninklijke Philips Electronics N.V. | Discharge lamp comprising a monoxide radiation emitting material |
US9773659B2 (en) * | 2008-12-30 | 2017-09-26 | Philips Lighting Holding B.V. | Metal halide lamp with ceramic discharge vessel |
US11037778B1 (en) * | 2021-01-14 | 2021-06-15 | Mocon, Inc. | UV lamp |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030184231A1 (en) * | 2002-04-02 | 2003-10-02 | Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh | Metal halide fill, and associated lamp |
US20040253897A1 (en) * | 2003-06-05 | 2004-12-16 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Gbh | Process for producing an electric lamp with outer bulb |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331982A (en) * | 1964-10-20 | 1967-07-18 | Sylvania Electric Prod | High pressure electric discharge device having a fill including vanadium |
DE3512757A1 (en) | 1985-04-10 | 1986-10-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Metal halide high-pressure discharge lamp |
JPH09161728A (en) * | 1995-11-30 | 1997-06-20 | Iwasaki Electric Co Ltd | Metal halide lamp |
DE19645959A1 (en) * | 1996-11-07 | 1998-05-14 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Metal halide high pressure discharge lamp |
JPH10283993A (en) | 1997-04-03 | 1998-10-23 | Matsushita Electron Corp | Metal halide lamp |
US6307321B1 (en) * | 1999-07-14 | 2001-10-23 | Toshiba Lighting & Technology Corporation | High-pressure discharge lamp and lighting apparatus |
JP2001043828A (en) * | 1999-07-30 | 2001-02-16 | Iwasaki Electric Co Ltd | Metal halide lamp |
US6731068B2 (en) * | 2001-12-03 | 2004-05-04 | General Electric Company | Ceramic metal halide lamp |
DE10254969A1 (en) * | 2002-11-26 | 2004-06-03 | Philips Intellectual Property & Standards Gmbh | High pressure discharge lamp with mercury chloride with limited chlorine content |
US7245081B2 (en) * | 2003-03-03 | 2007-07-17 | Osram-Melco Toshiba Lighting Ltd. | High-intensity discharge lamp with particular metal halide gas filling and lighting device |
JP4400095B2 (en) * | 2003-06-03 | 2010-01-20 | ウシオ電機株式会社 | Short arc super high pressure mercury lamp |
-
2005
- 2005-04-01 DE DE202005005202U patent/DE202005005202U1/en not_active Expired - Lifetime
-
2006
- 2006-03-30 EP EP06006769A patent/EP1708244B1/en not_active Not-in-force
- 2006-03-30 AT AT06006769T patent/ATE556425T1/en active
- 2006-03-31 CA CA002541525A patent/CA2541525A1/en not_active Abandoned
- 2006-04-01 CN CN200620114292.2U patent/CN201576649U/en not_active Expired - Lifetime
- 2006-04-03 US US11/395,136 patent/US7595593B2/en not_active Expired - Fee Related
- 2006-04-03 JP JP2006102402A patent/JP5041269B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030184231A1 (en) * | 2002-04-02 | 2003-10-02 | Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh | Metal halide fill, and associated lamp |
US20040253897A1 (en) * | 2003-06-05 | 2004-12-16 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Gbh | Process for producing an electric lamp with outer bulb |
Also Published As
Publication number | Publication date |
---|---|
ATE556425T1 (en) | 2012-05-15 |
EP1708244B1 (en) | 2012-05-02 |
US7595593B2 (en) | 2009-09-29 |
DE202005005202U1 (en) | 2006-08-10 |
JP2006286642A (en) | 2006-10-19 |
US20060220563A1 (en) | 2006-10-05 |
CN201576649U (en) | 2010-09-08 |
CA2541525A1 (en) | 2006-10-01 |
JP5041269B2 (en) | 2012-10-03 |
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