EP1708245B1 - Metal halide lamp - Google Patents

Metal halide lamp Download PDF

Info

Publication number
EP1708245B1
EP1708245B1 EP06006771A EP06006771A EP1708245B1 EP 1708245 B1 EP1708245 B1 EP 1708245B1 EP 06006771 A EP06006771 A EP 06006771A EP 06006771 A EP06006771 A EP 06006771A EP 1708245 B1 EP1708245 B1 EP 1708245B1
Authority
EP
European Patent Office
Prior art keywords
metal halide
halide lamp
fill
lamp according
discharge vessel
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.)
Not-in-force
Application number
EP06006771A
Other languages
German (de)
French (fr)
Other versions
EP1708245A1 (en
Inventor
Andreas Dr. Genz
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
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of EP1708245A1 publication Critical patent/EP1708245A1/en
Application granted granted Critical
Publication of EP1708245B1 publication Critical patent/EP1708245B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

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 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 rare earths such as Tm, Ho with the exception of DyJ3. It is used for photo-optical purposes, so for high luminance.
  • the wall load is typically 48 to 62 W / cm 2
  • the electrode spacing is less than 5 mm
  • the InJ amount is 0.1 to 1.5 mg / ml.
  • EP-A 1 455 382 discloses a metal halide lamp according to the preamble of claim 1.
  • a metal halide filling which uses Na, TI, and rare earths and additionally In halide. It is dispensed with other components with other halides.
  • the halogen used is iodine and / or bromine.
  • Remedy here creates the precisely metered addition of indium 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. Particularly suitable is Tm alone or predominantly, ie with more than 50% share, in particular with at least 90% share.
  • the molar ratio between In and rare earths should be between 0.03 and 0.6, in particular between 0.04 and 0.4.
  • the filling contains more iodine than bromine.
  • iodine is used alone, with a maximum of 10% bromine content, molar seen.
  • the filling also contains Na-halide, especially Na-iodide.
  • Na-halide especially Na-iodide.
  • the molar ratio between Na and rare earths is between 4 and 0.2, preferably between 3 and 0.3.
  • the discharge arc is constricted too much.
  • the color temperature is too low.
  • the color temperature of the lamp is preferably in the daylight range with a color temperature of 5000 to 6000 K.
  • the specific power, given in watts per mm arc length, is preferably less than 30.
  • This filling is preferably suitable for general lighting purposes for low-wattage lamps with a maximum rated power of 150 W. It is therefore used for low luminance.
  • the wall load is typically less than 40 W / cm 2
  • the electrode distance is more than 5 mm
  • the InJ amount is less than 0.1 mg / ml, especially at 0.03 to 0.075 mg / ml. This allows a long life, typically more than 4000 hours and at the same time achieve a high luminous flux.
  • FIG. 1 shows the side view of a two-sided crimped metal halide lamp 1 with 70 W rated power.
  • 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. These bruises 4 are connected to external power supply lines 6.
  • the outer power supply 6 is guided in a tubular sleeve 7 and terminates in a socket 8 of an integral base part 9.
  • the base is integrally made of steel or another made of heat-resistant metal and also includes a circular disk 10 as a contact element and barbs 11 as centering and mounting.
  • 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, or similar.
  • the outer bulb can be filled with nitrogen, inert gas, 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 lamps with 100 h burning time according to the embodiment according to Fig. 1 whose discharge vessel contains 10 mg Hg and the metal halide fillings according to Tab.
  • the filling in the outer bulb is argon.
  • Fig. 3 and 4 shows the change of the color temperature Tn ( FIG. 3b and 4b ) and the luminous flux LS ( FIG. 3a and 4a ) of the lamp FIG. 1 as a function of the lifetime for the two embodiments of Table 1. Both characteristics are extremely stable up to a lifetime of at least 6000 hours.
  • the first embodiment see FIG. 3 , is suitable for higher luminous flux and higher color temperature than the second embodiment.

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)

Abstract

The halide lamp has an ionizable fill comprising an inert gas, mercury and metal halides, with a halogen. An outer bulb (12) is made from hard glass or quartz glass and a discharge vessel (2) is made from quartz glass and contains two electrodes (3), where the outer bulb partially surrounds the discharge vessel. A space between the discharge vessel and the outer bulb contains a gas fill.

Description

Technisches GebietTechnical area

Die Erfindung geht aus von einer Metallhalogenidlampe für eine Hochdruckentladungslampe gemäß dem Oberbegriff des Anspruchs 1. Es handelt sich dabei 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 claim 1. These are fillings for lamps with daylight-like light color.

Stand der TechnikState of the art

Zur Erzielung tageslichtähnlicher Lichtfarben enthalten Metallhalogenidentladungslampen meist Thallium. Zum Beispiel beschreibt die US-A 6 107 742 eine Lampe, die eine Metallhalogenidfüllung mit den Metallen Cs, TI, und Seltene Erden wie Dy, Tm, Ho enthält und eine tageslichtähnliche Lichtfarbe hat.To achieve daylight-like light colors, metal halide discharge lamps usually contain thallium. For example, that describes US Pat. No. 6,107,742 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.

Außerdem ist aus US-A 5 965 984 eine Füllung für Metallhalogenidlampen bekannt, die In-Halogenid enthält. Daneben kann die Füllung Metallhalogenide mit den Metallen Seltene Erden wie Tm, Ho mit Ausnahme von DyJ3 enthalten. Sie wird für fotooptische Zwecke eingesetzt, also für hohe Leuchtdichte. Hier liegt die Wandbelastung bei typisch 48 bis 62 W/cm2, die spezifische Leistung bei 35 bis 70 W/mm Bogenlänge, der Elektrodenabstand liegt bei unter 5 mm, die InJ-Menge beträgt 0,1 bis 1,5 mg/ml.Besides, it is off US Pat. No. 5,965,984 a filling for metal halide lamps which contains in-halide. In addition, the filling may contain metal halides with the metals rare earths such as Tm, Ho with the exception of DyJ3. It is used for photo-optical purposes, so for high luminance. Here the wall load is typically 48 to 62 W / cm 2 , the specific power at 35 to 70 W / mm arc length, the electrode spacing is less than 5 mm, the InJ amount is 0.1 to 1.5 mg / ml.

Aus der US-A 2004253897 ist eine Metallhalogenidlampe mit zweiendigem Außenkolben bekannt, der nur einen Teil des Entladungsgefäßes umgibt.From the US-A 2004253897 a metal halide lamp with two-ended outer bulb is known, which surrounds only a portion of the discharge vessel.

Aus der EP-A 1 455 382 und der EP-A 1 511 068 ist jeweils eine Füllung bekannt, die neben Hg auch Metallhalogenide von TI, Na, Seltene Erden und in enthält. Dokument EP-A 1 455 382 offenbart eine Metallhalogenidlampe gemäß dem Oberbegriff des Anspruchs 1.From the EP-A 1 455 382 and the EP-A 1 511 068 In each case a filling is known, which also contains metal halides of TI, Na, rare earths and in addition to Hg. document EP-A 1 455 382 discloses a metal halide lamp according to the preamble of claim 1.

Darstellung der ErfindungPresentation of the invention

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 claim 1, which are adapted to the particular conditions of an outer bulb.

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 claim 1. Particularly advantageous embodiments can be found in the dependent claims.

Erfindungsgemäß wird eine Metallhalogenidfüllung verwendet, die Na, TI, und Seltene Erden und zusätzlich In-Halogenid verwendet. Dabei wird auf andere Komponenten mit weiteren Halogeniden verzichtet. Als Halogen wird Jod und/oder Brom verwendet.According to the invention, a metal halide filling is used which uses Na, TI, and rare earths and additionally In halide. It is dispensed with other components with other halides. The halogen used is iodine and / or bromine.

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 Indiumhalogenid. 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 Tm allein oder überwiegend, also mit mehr als 50 % Anteil, insbesondere mit mindestens 90 % Anteil.Remedy here creates the precisely metered addition of indium 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. Particularly suitable is Tm alone or predominantly, ie with more than 50% share, in particular with at least 90% share.

Das molare Verhältnis zwischen In und Seltenen Erden soll zwischen 0,03 und 0,6, insbesondere zwischen 0,04 und 0,4, liegen. Bevorzugt enthält die Füllung mehr Jod als Brom. Insbesondere wird Jod allein verwendet, mit maximal 10 % Brom-Anteil, molar gesehen.The molar ratio between In and rare earths should be between 0.03 and 0.6, in particular between 0.04 and 0.4. Preferably, the filling contains more iodine than bromine. In particular, iodine is used alone, with a maximum of 10% bromine content, molar seen.

Die Füllung enthält außerdem Na-Halogenid, insbesondere Na-Jodid. Das molare Verhältnis zwischen Na und Seltene Erden liegt zwischen 4 und 0,2, bevorzugt zwischen 3 und 0,3.The filling also contains Na-halide, especially Na-iodide. The molar ratio between Na and rare earths is between 4 and 0.2, preferably between 3 and 0.3.

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 Unterschreiten des molaren Verhältnisses von In zu Seltene Erden wird die y-Komponente des Farborts zu hoch und der Farbort zu grünstichig. Bei Überschreiten des molaren Verhältnisses von In zu Seltene Erden wird der Lichtstrom zu niedrig.When the molar ratio of In to rare earths falls below the color component, the y component of the color locus becomes too high and the color locus too greenish. When the molar ratio of In to rare earths is exceeded, the luminous flux becomes too low.

Bei Unterschreiten des molaren Verhältnisses von Na zu Seltene Erden wird der Entladungsbogen zu sehr eingeschnürt. Bei Überschreiten des molaren Verhältnisses von Na zu Seltene Erden ist die Farbtemperatur zu niedrig.If the molar ratio of Na to rare earths is undershot, the discharge arc is constricted too much. When the molar ratio of Na to rare earths is exceeded, the color temperature is too low.

Die Farbtemperatur der Lampe liegt bevorzugt im Tageslichtbereich mit einer Farbtemperatur von 5000 bis 6000 K. Die spezifische Leistung, gegeben in Watt pro mm Bogenlänge, liegt bevorzugt unter 30.The color temperature of the lamp is preferably in the daylight range with a color temperature of 5000 to 6000 K. The specific power, given in watts per mm arc length, is preferably less than 30.

Diese Füllung eignet sich bevorzugt für Allgemeinbeleuchtungszwecke für niederwattige Lampen mit höchstens 150 W Nennleistung. Sie wird also für niedrige Leuchtdichten eingesetzt. Hier liegt die Wandbelastung bei typisch weniger als 40 W/cm2, die spezifische Leistung bei weniger als 30 W/mm Bogenlänge, der Elektrodenabstand liegt bei mehr als 5 mm, die InJ-Menge beträgt unter 0,1 mg/ml, insbesondere bei 0,03 bis 0,075 mg/ml. Damit lässt sich eine lange Lebensdauer, typisch mehr als 4000 Std. und gleichzeitig ein hoher Lichtstrom erzielen.This filling is preferably suitable for general lighting purposes for low-wattage lamps with a maximum rated power of 150 W. It is therefore used for low luminance. Here, the wall load is typically less than 40 W / cm 2 , the specific power at less than 30 W / mm arc length, the electrode distance is more than 5 mm, the InJ amount is less than 0.1 mg / ml, especially at 0.03 to 0.075 mg / ml. This allows a long life, typically more than 4000 hours and at the same time achieve a high luminous flux.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

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 und des Lichtstroms mit der Le- bensdauer für zwei Ausführungsbeispiele.
In the following the invention will be explained in more detail with reference to several embodiments. Show it:
FIG. 1
a metal halide lamp according to the invention;
FIG. 2
a spectrum of this lamp
FIG. 3
the change in color temperature and luminous flux with the lifetime for two embodiments.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Figur 1 zeigt die seitliche Ansicht einer zweiseitig gequetschten Metallhalogenidlampe 1 mit 70 W Nennleistung. 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 Quetschungen 4 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 einem anderen 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 two-sided crimped metal halide lamp 1 with 70 W rated power. 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. These bruises 4 are connected to external power supply lines 6. The outer power supply 6 is guided in a tubular sleeve 7 and terminates in a socket 8 of an integral base part 9. The base is integrally made of steel or another made of heat-resistant metal and also includes a circular disk 10 as a contact element and barbs 11 as centering and mounting. 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).

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, Edelgas, einem anderen inerten Gas oder auch Vakuum befüllt sein.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, or similar. The outer bulb can be filled with nitrogen, inert gas, another inert gas or vacuum.

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 Lebensdauerein 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 von Lampen mit 100 h Brenndauer nach dem Ausführungsbeispiel gemäß Fig. 1, deren Entladungsgefäß 10 mg Hg und die Metallhalogenid-Füllungen nach Tab. 1 enthält. Die Füllung im Außenkolben ist Argon. Tab. 1 Ausführungsbeispiel 1 (Fig. 3) Ausführungsbeispiel 2 (Fig. 4) Leistung/ W 73 73 Lichtstrom/ Im 5830 5350 Farbtemperatur/ K 5650 5480 Farbort 0,329 / 0,350 0,333 / 0,337 Mittlere LD / h 9000 9000 Elektrodenabstand / mm 9,0 9,0 Durchmesser Brennerkolben/ mm 11,0 11,0 Länge Brennerkolben /mm 16,0 16,0 Kolbenvolumen / ml 0,75 0,75 Füllgas Brenner 100h Pa Ar 100h Pa Ar Füllgas Außenkolben 300 hPa Ar 300 hPa Ar Füllung in mg 10 mg Hg, 0,04 mg InJ, 0,70 mg TmJ3, 0,11 mg TIJ, 0,25 mg NaJ 10 mg Hg, 0,04 mg InJ, 0,67 mg TmJ3, 0,06 mg TIJ, 0,34 mg NaJ Metalle in mol % Na 48%. Tm 37 %, TI 10 %, In 5 % Na 59 %, Tm 33 %, TI 4 %, In 4 % Fig. 2 shows the spectrum of lamps with 100 h burning time according to the embodiment according to Fig. 1 whose discharge vessel contains 10 mg Hg and the metal halide fillings according to Tab. The filling in the outer bulb is argon. Tab. 1 Embodiment 1 ( Fig. 3 ) Embodiment 2 ( Fig. 4 ) Power / W 73 73 Luminous flux / Im 5830 5350 Color temperature / K 5650 5480 color location 0.329 / 0.350 0.333 / .377 Medium LD / h 9000 9000 Electrode distance / mm 9.0 9.0 Diameter burner piston / mm 11.0 11.0 Length of burner piston / mm 16.0 16.0 Piston volume / ml 0.75 0.75 Filling gas burner 100h Pa Ar 100h Pa Ar Filling gas outer bulb 300 hPa Ar 300 hPa Ar Filling in mg 10 mg Hg, 0.04 mg InJ, 0.70 mg TmJ3, 0.11 mg TIJ, 0.25 mg NaI 10 mg Hg, 0.04 mg InJ, 0.67 mg TmJ3, 0.06 mg TIJ, 0.34 mg NaJ Metals in mol% Na 48%. Tm 37%, TI 10%, In 5% Na 59%, Tm 33%, TI 4%, In 4%

Durch Wahl der relativen Verhältnisse der Metallhalogenide lässt sich eine höhere oder niedrigere Farbtemperatur einstellen. Zwei Ausführungsbeispiele mit unterschiedlicher Füllung sind in Tab. 1 gezeigt. Die Füllung verwendet als Seltene Erde jeweils Tm allein. Gute Ergebnisse werden auch mit einer Zugabe an Dy und Ho erzielt, wenn Tm überwiegend mit mehr als 50 % Anteil verwendet wird.By choosing the relative ratios of the metal halides, a higher or lower color temperature can be set. Two embodiments with different filling are shown in Tab. 1. The filling uses Tm alone as Rare Earth. Good results are also obtained with an addition of Dy and Ho, if Tm is used predominantly with more than 50% proportion.

Fig. 3 und 4 zeigt die Änderung der Farbtemperatur Tn (Figur 3b und 4b) und des Lichtstroms LS (Figur 3a und 4a) der Lampe aus Figur 1 als Funktion der Lebensdauer für die beiden Ausführungsbeispiele der Tab. 1. Beide Kenngrößen sind bis zu einer Lebensdauer von mindestens 6000 Std. äußerst stabil. Das erste Ausführungsbeispiel, siehe Figur 3, ist für höheren Lichtstrom und höhere Farbtemperatur geeignet als das zweite Ausführungsbeispiel. Fig. 3 and 4 shows the change of the color temperature Tn ( FIG. 3b and 4b ) and the luminous flux LS ( FIG. 3a and 4a ) of the lamp FIG. 1 as a function of the lifetime for the two embodiments of Table 1. Both characteristics are extremely stable up to a lifetime of at least 6000 hours. The first embodiment, see FIG. 3 , is suitable for higher luminous flux and higher color temperature than the second embodiment.

Claims (9)

  1. Metal halide lamp having an ionizable fill comprising at least one inert gas, mercury and metal halides, with at least one halogen, the fill comprising Tl, Na and rare earths as metals for halides, the fill additionally comprising In halide, at least one halide from the group of the rare earths Dy, Ho, Tm being used, the fill containing between 0.1 and 2.5 mg of RE halide per ml of bulb volume of the discharge vessel, characterized in that the fill contains between 0.03 and 0.075 mg of In halide per ml of bulb volume of the discharge vessel, and in that the color temperature of the lamp is from 5000 to 6000 K, corresponding to a luminous color similar to daylight.
  2. Metal halide lamp according to Claim 1, characterized in that Tm alone or predominantly in a proportion of more than 50% is used.
  3. Metal halide lamp according to Claim 1, characterized in that iodine and/or bromine are used as halogens for forming halides.
  4. Metal halide lamp according to Claim 3, characterized in that iodine with a proportion of at most 10% of bromine is used as the halogen.
  5. Metal halide lamp according to Claim 1, characterized in that the molar ratio between indium and rare earths is between 0.03 and 0.6, preferably between 0.04 and 0.4.
  6. Metal halide lamp according to Claim 1, characterized in that the molar ratio between sodium and rare earths is between 4.0 and 0.2, preferably between 3.0 and 0.3.
  7. Metal halide lamp according to Claim 1, characterized in that the lamp also comprises: an outer bulb made from hard glass or quartz glass and a discharge vessel (2) made from quartz glass and containing two electrodes (11), with the outer bulb in particular only partially surrounding the discharge vessel.
  8. Metal halide lamp according to Claim 6, characterized in that the space between discharge vessel and outer bulb contains a gas fill.
  9. Metal halide lamp according to Claim 7, characterized in that the gas fill consists of 200 to 900 mbar N2 or noble gas or CO2 alone or in combination.
EP06006771A 2005-04-01 2006-03-30 Metal halide lamp Not-in-force EP1708245B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005005200U DE202005005200U1 (en) 2005-04-01 2005-04-01 metal halide

Publications (2)

Publication Number Publication Date
EP1708245A1 EP1708245A1 (en) 2006-10-04
EP1708245B1 true EP1708245B1 (en) 2011-03-02

Family

ID=36678577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06006771A Not-in-force EP1708245B1 (en) 2005-04-01 2006-03-30 Metal halide lamp

Country Status (7)

Country Link
US (1) US7545100B2 (en)
EP (1) EP1708245B1 (en)
JP (1) JP2006286643A (en)
CN (1) CN201608150U (en)
AT (1) ATE500606T1 (en)
CA (1) CA2541519A1 (en)
DE (2) DE202005005200U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008218192A (en) * 2007-03-05 2008-09-18 Osram Melco Toshiba Lighting Kk High-pressure discharge lamp, and luminaire
US8653732B2 (en) * 2007-12-06 2014-02-18 General Electric Company Ceramic metal halide lamp with oxygen content selected for high lumen maintenance
CN105810551A (en) * 2014-12-31 2016-07-27 广东雪莱特光电科技股份有限公司 Mercury-free high voltage gas discharge lamp
DE102018116252B3 (en) 2018-07-05 2019-08-08 TRüTZSCHLER GMBH & CO. KG carding

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290742A (en) * 1993-03-31 1994-10-18 Iwasaki Electric Co Ltd Metal halide lamp
TW339447B (en) 1995-10-20 1998-09-01 Matsushita Electric Ind Co Ltd Metal halide lamp
JPH10283993A (en) 1997-04-03 1998-10-23 Matsushita Electron Corp Metal halide lamp
JP4181949B2 (en) * 2003-03-03 2008-11-19 オスラム・メルコ・東芝ライティング株式会社 High pressure discharge lamp and lighting device
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
JP4340170B2 (en) * 2003-03-03 2009-10-07 オスラム・メルコ・東芝ライティング株式会社 High pressure discharge lamp and lighting device
DE10325554A1 (en) 2003-06-05 2004-12-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method of manufacturing an electric lamp with an outer bulb
JP4295700B2 (en) * 2003-08-29 2009-07-15 パナソニック株式会社 Method for lighting metal halide lamp and lighting device
JP2005203177A (en) * 2004-01-14 2005-07-28 Osram Melco Toshiba Lighting Kk High-pressure discharge lamp and lighting system

Also Published As

Publication number Publication date
CN201608150U (en) 2010-10-13
JP2006286643A (en) 2006-10-19
DE502006008974D1 (en) 2011-04-14
EP1708245A1 (en) 2006-10-04
US7545100B2 (en) 2009-06-09
US20060220564A1 (en) 2006-10-05
DE202005005200U1 (en) 2006-08-10
ATE500606T1 (en) 2011-03-15
CA2541519A1 (en) 2006-10-01

Similar Documents

Publication Publication Date Title
EP1465237B1 (en) High pressure discharge lamp for vehicle headlamps
EP1076353B1 (en) Mercury-free metal halide lamp
DD283875A5 (en) HIGH PRESSURE MERCURY VAPOR DISCHARGE LAMP
EP0841686A2 (en) Metal halide high pressure discharge lamp
EP0453893B1 (en) High-pressure discharge lamp
DE69825700T2 (en) metal halide
EP1708244B1 (en) Metal halide lamp
EP1708245B1 (en) Metal halide lamp
DE3210809C2 (en) Miniature high-pressure discharge lamp
DE60128417T2 (en) High pressure discharge lamp
EP0702394B1 (en) Metal halide high pressure discharge lamp
EP0492205A2 (en) Metal halide high-pressure discharge lamp
EP1351277B1 (en) Metal halide filling composition and corresponding lamp
DE102005016048B4 (en) Metal halide lamp with an ionizable filling containing at least one inert gas, mercury and metal halides of Tl, Na, Li, Dy, Ho and Tm
EP1735814B1 (en) High-pressure discharge lamp
EP2342735A1 (en) Ceramic metal halide lamp having a high color temperature
DE102005026208A1 (en) Metal halide high-pressure discharge lamp
DE3044121A1 (en) SODIUM PRESSURE LAMP
DE102010038537A1 (en) High pressure discharge lamp
DE69302353T2 (en) High pressure sodium discharge lamp
DE202006005213U1 (en) Metal halide lamp for high-pressure discharge lamp, contains ionizable fill having inert gas, mercury and/or metal halides, halogen(s), thallium, sodium, lithium and rare earths, and mercury halide
EP2024988A1 (en) Metal-halogenide filling for an electric high-pressure discharge lamp and associated lamp
DE102005026207A1 (en) Metal halide high-pressure discharge lamp
DE10234758A1 (en) Low power metal halogen vapor lamp has elliptical discharge vessel with quartz wall, outer thermal reflective coating, and ionisable filling with mercury, starter gas, and metal halogenide
DE2622760A1 (en) Regenerative cycle incandescent lamp contg. mercuric bromide - in amt. correlated with design parameters to avoid premature blackening

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20061023

17Q First examination report despatched

Effective date: 20061122

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: METAL HALIDE LAMP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502006008974

Country of ref document: DE

Date of ref document: 20110414

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006008974

Country of ref document: DE

Effective date: 20110414

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110603

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110613

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110602

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E011052

Country of ref document: HU

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006008974

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110331

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110704

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110702

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110331

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111001

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111213

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: OSRAM AG, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111213

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH, 81543 MUENCHEN, DE

Effective date: 20110203

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: LEDVANCE GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111213

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: LEDVANCE GMBH, DE

Free format text: FORMER OWNER: PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH, 81543 MUENCHEN, DE

Effective date: 20110203

26N No opposition filed

Effective date: 20111205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120327

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120328

Year of fee payment: 7

Ref country code: GB

Payment date: 20120312

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120319

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 500606

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110330

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502006008974

Country of ref document: DE

Effective date: 20111205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110330

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: LEDVANCE GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20130319

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110330

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20130320

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110302

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20131001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130823

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: LEDVANCE GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130823

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130330

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20131129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130402

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131001

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502006008974

Country of ref document: DE

Owner name: LEDVANCE GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 80807 MUENCHEN, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200528

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006008974

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211001