EP0492205B1 - Metal halide high-pressure discharge lamp - Google Patents
Metal halide high-pressure discharge lamp Download PDFInfo
- Publication number
- EP0492205B1 EP0492205B1 EP91120910A EP91120910A EP0492205B1 EP 0492205 B1 EP0492205 B1 EP 0492205B1 EP 91120910 A EP91120910 A EP 91120910A EP 91120910 A EP91120910 A EP 91120910A EP 0492205 B1 EP0492205 B1 EP 0492205B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal halide
- vessel
- discharge lamp
- lamp according
- pressure metal
- 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.)
- Expired - Lifetime
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- 229910001507 metal halide Inorganic materials 0.000 title claims description 21
- 150000005309 metal halides Chemical class 0.000 title claims description 21
- 238000009877 rendering Methods 0.000 claims description 17
- 229910052735 hafnium Inorganic materials 0.000 claims description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 9
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- -1 halide compounds Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 229910052756 noble gas Inorganic materials 0.000 claims 1
- 210000003739 neck Anatomy 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052775 Thulium Inorganic materials 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001649 bromium compounds Chemical class 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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 relates to a metal halide high-pressure discharge lamp according to the preamble of claim 1.
- Metal halide high-pressure discharge lamps of this type are used in particular in lighting systems for stage, film and television, where light with color temperatures between 4000 and 9000 K and very good color rendering is required in all color temperature ranges. Recently, these lamps have also been used in projection technology and effect lighting.
- EP-A-0 391 283 discloses a high pressure metal halide discharge lamp with a filling which, in addition to an inert gas and mercury, contains bromides of the elements Dy, Tm, Tl, Cs and additionally ThJ 4 , where Th can be replaced by Hf. With this filling, a color temperature of 5600 K and a color rendering index of 92 are achieved.
- the object of the invention is to provide a metal halide high-pressure discharge lamp which emits radiation with a color temperature between 4000 and 9000 K and a general color rendering index Ra of greater than 90, the color rendering index R 9 in particular reaching values of 50 and more for the red spectral range.
- the color rendering can be further improved, values between 50 and 98 being achieved for the red rendering index R 9, depending on the lamp type.
- the general color rendering index Ra always has values of over 90.
- the lamp bulb when the lamps are operated on a dimmer, the lamp bulb no longer shows any blackening.
- the color rendering index no longer drops with decreasing performance, so that good color rendering values are also achieved here.
- the hafnium and / or zirconium increases the burning voltage, which makes it possible to shorten the electrode spacing with the same mercury dosage in order to obtain higher luminance levels.
- the lamps with essentially only hafnium and / or zirconium filling have reduced devitrification.
- the discharge vessel contains 0.02 to 6 mg hafnium per ml of the vessel volume.
- the filling should advantageously contain 0.01 to 4 mg of this metal per ml of the vessel volume.
- Iodine and bromine in a molar ratio between 0.2 and 5 are advantageously used as halogens.
- the discharge vessel should also contain cesium in an amount of up to 4 mg per ml of the vessel volume.
- the discharge vessel can additionally contain one or more rare earth metals as well as nickel and / or cobalt.
- the discharge vessel 2 made of quartz glass has a spherical shape and has a neck 3, 4 at each of two diametrically opposite points, into which pin-shaped tungsten electrodes 5, 6 are melted by means of sealing foils 7, 8 made of molybdenum. The ends of the sealing foils 7, 8 facing away from the discharge space are welded to power supply lines 9, 10.
- Table 1 below shows two different fillings of the discharge vessel 2 of a 400 W lamp, one with hafnium and one with zirconium, as well as the photometric data obtained with the respective fill.
- FIG. 2 shows a metal halide high-pressure discharge lamp 13 according to the invention which has a base on two sides and has a power consumption of 575 W.
- the discharge vessel 14 made of quartz glass has an essentially spherical shape and has a neck 15, 16 at two diametrically opposite locations. In each of these necks 15, 16, a pin electrode 17, 18 made of tungsten is melted in a gas-tight manner via a molybdenum sealing film 19, 20.
- the sealing foils 19, 20 are electrically connected to a base of the type SFc 10-4, the base sleeve 21, 22 of which is attached to the free end of each neck 15, 16.
- a threaded pin 23, 24 is welded onto the base sleeve 21, 22, on which in turn a knurled nut 25, 26 is screwed.
- the electrical connection to the mains or ballast is established by connecting cables which are clamped between the base sleeve 21, 22 and the knurled nut 25, 26.
- Table 2 below shows two different fillings of the discharge vessel for a 575 W lamp, one with hafnium and one with zirconium as well as the lighting data of the lamps.
- Table 2 Filling 3 Filling 4 J 2 0.90 mg 0.90 mg Br 2 0.60 mg 0.60 mg Cs 0.30 mg 0.30 mg Dy 0.40 mg 0.40 mg Hf 0.40 mg --- Zr --- 0.20 mg Co 0.05 mg 0.07 mg Ed 42 mg 46 mg Ar 400 mbar 400 mbar Power consumption 575 W. 575 W.
- Discharge tube volume 2.60 ml 2.60 ml Electrode gap 6 mm 6 mm Burning voltage 100 V 100 V Color temperature 5600 K. 5600 K. Luminous efficacy 81 lm / W 81 lm / W Color rendering index Ra 94 95 Red rendering index R 9 65 75 lifespan 750 h 750 h
- FIG. 3 shows a metal halide high-pressure discharge lamp 27 according to the invention with a power consumption of 4000 W.
- the lamp 27 consists of an ellipsoidal discharge vessel 28 made of quartz glass, at the two ends of which lie in the axis, a neck 29, 30 made of quartz glass is melted on.
- a molybdenum sealing film 31, 32 is melted into each of the necks 29, 30, a pin-shaped electrode 33, 34 being provided on the end of the film 31, 32 facing the discharge vessel is welded from tungsten.
- the other ends of the sealing film 31, 32 are electrically connected to the bases 35, 36 of the type SFa 21-12, which are placed over the free ends of the necks 29, 30 and fastened by means of putty.
- Table 3 shows two different fillings of the discharge vessel of a 4000 W lamp, one with hafnium and one with zirconium, as well as the lighting data of the lamps.
- Table 3 Filling 5 Filling 6 J 2 1.30 mg 1.30 mg Br 2 2.30 mg 2.30 mg Cs 1.20 mg 1.20 mg Dy 0.95 mg 1.10 mg DG 0.55 mg 0.40 mg Hf 0.27 mg --- Zr --- 0.14 mg Ed 235 mg 220 mg Ar 400 mbar 400 mbar Power consumption 4000 W 4000 W Discharge tube volume 24.5 ml 24.5 ml Electrode gap 20 mm 20 mm Burning voltage 200 V 200 V Color temperature 6000 K. 6000 K. Luminous efficacy 102 lm / W 102 lm / W Color rendering index Ra 96 98 Red rendering index R 9 92 95 lifespan 500 h 500 h
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- Discharge Lamp (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Die Erfindung betrifft eine Metallhalogenid-Hochdruckentladungslampe gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a metal halide high-pressure discharge lamp according to the preamble of claim 1.
Metallhalogenid-Hochdruckentladungslampen dieser Art werden insbesondere in Beleuchtungssystemen für Bühne, Film und Fernsehen eingesetzt, wo Licht mit Farbtemperaturen zwischen 4000 und 9000 K und sehr guter Farbwiedergabe in allen Farbtemperaturbereichen benötigt wird. Neuerdings finden diese Lampen auch in der Projektionstechnik und der Effektbeleuchtung Verwendung.Metal halide high-pressure discharge lamps of this type are used in particular in lighting systems for stage, film and television, where light with color temperatures between 4000 and 9000 K and very good color rendering is required in all color temperature ranges. Recently, these lamps have also been used in projection technology and effect lighting.
Aus der DE-PS 19 40 539 und der DE-PS 21 14 804 sind Quecksilberdampf-Hochdruckentladungslampen mit Halogenidzusätzen von Dysprosium und/oder Holmium und/oder Thulium bekannt. Diese Lampen geben Licht mit einer tageslichtähnlichen spektralen Zusammensetzung und einer Farbtemperatur von ca. 6000 K ab. Nachteilig ist jedoch, daß bei diesen Lampen der Farbwiedergabeindex noch keine optimalen Werte aufweist und insbesondere - wie bei den meisten anderen auf dem Markt befindlichen Hochdruckentladungslampen für diesen Anwendungszweck - der Wiedergabeindex R9 für die roten Farbtöne nur höchstens Werte der Stufe 3 mit einem R9 von etwa 40 erreicht. Die richtige Wiedergabe von Rottönen, wie sie insbesondere auch bei der Farbe der Haut vorliegen, ist bei Film, Fernsehen und Bühne von großer BedeutungFrom DE-PS 19 40 539 and DE-PS 21 14 804 mercury vapor high-pressure discharge lamps with halide additions of dysprosium and / or holmium and / or thulium are known. These lamps emit light with a spectral composition similar to daylight and a color temperature of approx. 6000 K. However, it is disadvantageous that the color rendering index of these lamps does not yet have optimal values, and in particular - like most of the other high-pressure discharge lamps on the market for this purpose - the rendering index R 9 for the red hues only has a maximum of
EP-A-0 391 283 offenbart eine Mettallhalogenid-Hochdruckentladungslampe mit einer Füllung, die neben einem Edelgas und Quecksilber Bromide der Elemente Dy, Tm, Tl, Cs und zusätzlich ThJ4 aufweist, wobei Th durch Hf ersetzt sein kann. Mit dieser Füllung werden eine Farbtemperatur von 5600 K und ein Farbwiedergabeindex von 92 erreicht.EP-A-0 391 283 discloses a high pressure metal halide discharge lamp with a filling which, in addition to an inert gas and mercury, contains bromides of the elements Dy, Tm, Tl, Cs and additionally ThJ 4 , where Th can be replaced by Hf. With this filling, a color temperature of 5600 K and a color rendering index of 92 are achieved.
Aufgabe der Erfindung ist es, eine Metallhalogenid-Hochdruckentladungslampe zu schaffen, die Strahlung mit einer Farbtemperatur zwischen 4000 und 9000 K und einem allgemeinen Farbwiedergabeindex Ra von größer 90 abgibt, wobei insbesondere der Farbwiedergabeindex R9 für den roten Spektralbereich Werte von 50 und mehr erreicht.The object of the invention is to provide a metal halide high-pressure discharge lamp which emits radiation with a color temperature between 4000 and 9000 K and a general color rendering index Ra of greater than 90, the color rendering index R 9 in particular reaching values of 50 and more for the red spectral range.
Die Aufgabe wird durch das kennzeichnende Merkmal des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.The object is achieved by the characterizing feature of claim 1. Further advantageous features can be found in the subclaims.
Durch die Verwendung von im wesentlichen nur Hafnium und/oder Zirkon als Metall für die Metallhalogenidfüllung kann die Farbwiedergabe weiter verbessert werden, wobei für den roten Wiedergabeindex R9 je nach Lampentyp Werte zwischen 50 und 98 erreicht werden. Der allgemeine Farbwiedergabeindex Ra weist dabei immer Werte von über 90 auf.By using essentially only hafnium and / or zirconium as metal for the metal halide filling, the color rendering can be further improved, values between 50 and 98 being achieved for the red rendering index R 9, depending on the lamp type. The general color rendering index Ra always has values of over 90.
Insbesondere zeigt bei Betrieb der Lampen an einem Dimmer der Lampenkolben keine Schwärzung mehr. Der Farbwiedergabeindex bricht mit abnehmender Leistung nicht mehr ein, so daß auch hier gute Farbwiedergabewerte erreicht werden. Durch das Hafnium und/oder Zirkon wird eine Erhöhung der Brennspannung erzielt, die es gestattet, bei gleicher Quecksilber-Dosierung den Elektrodenabstand zu verkürzen, um somit höhere Leuchtdichten zu erhalten. Außerdem weisen die Lampen mit im wesentlichen nur Hafnium- und/oder Zirkonfüllung eine verminderte Entglasung auf.In particular, when the lamps are operated on a dimmer, the lamp bulb no longer shows any blackening. The color rendering index no longer drops with decreasing performance, so that good color rendering values are also achieved here. The hafnium and / or zirconium increases the burning voltage, which makes it possible to shorten the electrode spacing with the same mercury dosage in order to obtain higher luminance levels. In addition, the lamps with essentially only hafnium and / or zirconium filling have reduced devitrification.
Optimale Ergebnisse werden erzielt, wenn das Entladungsgefäß pro ml des Gefäßvolumens 0,02 bis 6 mg Hafnium enthält. Bei der Verwendung von Zirkon sollte die Füllung vorteilhaft pro ml des Gefäßvolumens 0,01 bis 4 mg dieses Metalls enthalten. Als Halogene werden vorteilhaft Jod und Brom in einem Molverhältnis zwischen 0,2 und 5 verwendet. Das Entladungsgefäß sollte außerdem Cäsium bis zu einer Menge von 4 mg pro ml des Gefäßvolumens enthalten.Optimal results are achieved if the discharge vessel contains 0.02 to 6 mg hafnium per ml of the vessel volume. When using zirconium, the filling should advantageously contain 0.01 to 4 mg of this metal per ml of the vessel volume. Iodine and bromine in a molar ratio between 0.2 and 5 are advantageously used as halogens. The discharge vessel should also contain cesium in an amount of up to 4 mg per ml of the vessel volume.
Zur Einstellung der gewünschten Farbtemperatur zwischen 4000 und 9000 K kann das Entladungsgefäß zusätzlich eines oder mehrere Seltenerdmetalle sowie Nickel und/oder Kobalt enthalten.To set the desired color temperature between 4000 and 9000 K, the discharge vessel can additionally contain one or more rare earth metals as well as nickel and / or cobalt.
Andere Zusätze, die untersucht worden sind, haben keine Verbesserung im angestrebten Sinn erbracht und sind nicht Gegenstand der vorliegenden Erfindung.Other additives that have been investigated have not brought about any improvement in the intended sense and are not the subject of the present invention.
Die Erfindung ist anhand der nachfolgenden Ausführungsbeispiele näher veranschaulicht.
- Figur 1
- zeigt eine geschnittene Seitenansicht einer erfindungsgemäßen Metallhalogenid-Hochdruckentladungslampe
Figur 2- zeigt eine teilweise geschnittene Seitenansicht einer weiteren erfindungsgemäßen Metallhalogenid-Hochdruckentladungslampe
Figur 3- zeigt eine Seitenansicht einer dritten erfindungsgemäßen Metallhalogenid-Hochdruckentladungslampe
- Figure 1
- shows a sectional side view of a metal halide high-pressure discharge lamp according to the invention
- Figure 2
- shows a partially sectioned side view of a further metal halide high-pressure discharge lamp according to the invention
- Figure 3
- shows a side view of a third metal halide high-pressure discharge lamp according to the invention
In Figur 1 ist eine Metallhalogenid-Hochdruckentladungslampe 1 mit einer Leistungsaufnahme von 400 W dargestellt, wie sie in ein Reflektorsystem eingewerden kann. Das Entladungsgefäß 2 aus Quarzglas besitzt eine kugelförmige Gestalt und weist an zwei diametral gegenüberliegenden Stellen je einen Hals 3, 4 auf, in den stiftförmige Wolfram-Elektroden 5, 6 mittels Dichtungsfolien 7, 8 aus Molybdän eingeschmolzen sind. Die dem Entladungsraum abgewandten Enden der Dichtungsfolien 7, 8 sind mit Stromzuführungen 9, 10 verschweißt. Am Übergang der Elektroden 5, 6 zu den Dichtungsfolien 7, 8 sind Freiräume 11, 12 zwischen den Elektroden 5, 6 und dem Glasmantel der Hälse 3, 4 angeordnet, in denen sich abgetragenes Wolfram der Elektroden sowie kondensierte Verunreinigungen aus dem Innern der Lampe 1 sammeln können, so daß eine Schwärzung der für die Lichtabstrahlung wesentlichen Teile des Entladungsgefäßes 2 verhindert wird.1 shows a metal halide high-pressure discharge lamp 1 with a power consumption of 400 W, as is used in a reflector system can. The
In der nachfolgenden Tabelle 1 sind zwei unterschiedliche Füllungen des Entladungsgefäßes 2 einer 400 W-Lampe, eine mit Hafnium und eine mit Zirkon sowie die mit der jeweiligen Füllung erzielten lichttechnischen Daten zusammengestellt.
Figur 2 zeigt eine erfindungsgemäße zweiseitig gesockelte Metallhalogenid-Hochdruckentladungslampe 13 mit einer Leistungsaufnahme von 575 W. Das Entladungsgefäß 14 aus Quarzglas besitzt eine im wesentlichen kugelförmige Gestalt und weist an zwei diametral gegenüberliegenden Stellen je einen Hals 15, 16 auf. In diese Hälse 15, 16 ist je eine Stiftelektrode 17, 18 aus Wolfram über eine Molybdän-Dichtungsfolie 19, 20 gasdicht eingeschmolzen. Die Dichtungsfolien 19, 20 sind mit einem Sockel vom Typ SFc 10-4 elektrisch verbunden, dessen Sockelhülse 21, 22 auf das freie Ende jedes Halses 15, 16 aufgesteckt ist. Auf die Sockelhülse 21, 22 ist ein Gewindestift 23, 24 geschweißt, auf den wiederum eine Rändelmutter 25, 26 geschraubt ist. Die elektrische Verbindung mit dem Netz bzw. Vorschaltgerät wird durch Verbindungskabel hergestellt, die zwischen Sockelhülse 21, 22 und Rändelmutter 25, 26 eingeklemmt werden.FIG. 2 shows a metal halide high-
In der folgenden Tabelle 2 sind zwei unterschiedliche Füllungen des Entladungsgefäßes für eine 575 W-Lampe, eine mit Hafnium und eine mit Zirkon sowie die lichttechnischen Daten der Lampen zusammengestellt.
In Figur 3 ist eine erfindungsgemäße Metallhalogenid-Hochdruckentladungslampe 27 mit einer Leistungsaufnahme von 4000 W dargestellt. Die Lampe 27 besteht aus einem ellipsoidförmigen Entladungsgefäß 28 aus Quarzglas, an dessen beiden in der Achse liegenden Enden je ein Hals 29, 30 aus Quarzglas angeschmolzen ist. In die Hälse 29, 30 ist jeweils eine Molybdän-Dichtungsfolie 31, 32 eingeschmolzen, wobei an dem dem Entladungsgefäß zugewandten Ende der Folie 31, 32 eine stiftförmige Elektrode 33, 34 aus Wolfram angeschweißt ist. Die anderen Enden der Dichtungsfolie 31, 32 sind elektrisch mit den Sockeln 35, 36 vom Typ SFa 21-12 verbunden, die über die freien Enden der Hälse 29, 30 gesteckt und mittels Kitt befestigt sind.FIG. 3 shows a metal halide high-
Die folgende Tabelle 3 zeigt zwei unterschiedliche Füllungen des Entladungsgefäßes einer 4000 W-Lampe, eine mit Hafnium und eine mit Zirkon sowie die lichttechnischen Daten der Lampen.
Claims (7)
- High-pressure metal halide discharge lamp (1, 13, 27) having a discharge vessel (2, 14, 28) made of high-temperature stable translucent material, two high-temperature resistant electrodes (5, 6; 17, 18; 33, 34) and a filling which essentially consists of mercury, at least one noble gas, ceasium and metal halides, the lamp (1, 13, 27), for the production of light with a colour temperature of between 4000 and 9000 K, a general colour rendering index Ra of greater than 90 and a colour rendering index R9 for the red spectral range of at least 50, containing, as metals for the metal halides, essentially only hafnium and/or zirconium and, if appropriate, additionally one or more rare-earth metals and/or nickel and/or cobalt.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (2, 14, 28) contains hafnium in an amount of in each case 0.02 to 6.0 mg per ml of the vessel volume.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (2, 14, 28) contains zirconium in an amount of in each case 0.01 to 4.0 mg per ml of the vessel volume.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (2, 14, 28) contains, as halogens for the halide compounds, iodine and bromine in a molar ratio of between 0.2 and 5.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (2, 14, 28) contains ceasium up to a quantity of 4 mg per ml of the vessel volume.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (14, 28) additionally contains rare-earth metals up to an amount of 6 mg per ml of the vessel volume.
- High-pressure metal halide discharge lamp according to Claim 1, characterized in that the discharge vessel (14) additionally contains cobalt and/or nickel in an amount of 0.01 to 0.2 mg per ml of the vessel volume.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4040858A DE4040858A1 (en) | 1990-12-20 | 1990-12-20 | METAL HALOGENIDE HIGH PRESSURE DISCHARGE LAMP |
| DE4040858 | 1990-12-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0492205A2 EP0492205A2 (en) | 1992-07-01 |
| EP0492205A3 EP0492205A3 (en) | 1992-12-30 |
| EP0492205B1 true EP0492205B1 (en) | 1996-10-30 |
Family
ID=6420828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91120910A Expired - Lifetime EP0492205B1 (en) | 1990-12-20 | 1991-12-05 | Metal halide high-pressure discharge lamp |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5323085A (en) |
| EP (1) | EP0492205B1 (en) |
| JP (1) | JP3171895B2 (en) |
| DE (2) | DE4040858A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8569952B2 (en) | 2008-11-06 | 2013-10-29 | Osram Gesellschaft Mit Beschraenkter Haftung | Ceramic metal halide lamp having a high color temperature |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382873A (en) * | 1991-12-04 | 1995-01-17 | U.S. Philips Corporation | High-pressure discharge lamp with incandescing metal droplets |
| JP2511393B2 (en) * | 1992-09-15 | 1996-06-26 | パテント−トロイハント−ゲゼルシヤフト フユア エレクトリツシエ グリユーランペン ミツト ベシユレンクテル ハフツング | Metal halide lamp |
| DE4310539A1 (en) * | 1993-03-31 | 1994-10-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Metal halide high-pressure discharge lamp for installation in optical systems |
| KR950001852A (en) * | 1993-06-01 | 1995-01-04 | 에프.제이.스미트 | High pressure metal halide lamp |
| US5451838A (en) * | 1994-03-03 | 1995-09-19 | Hamamatsu Photonics K.K. | Metal halide lamp |
| DE4432611A1 (en) | 1994-09-14 | 1996-03-21 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Metal halide high pressure discharge lamp |
| US6301371B1 (en) * | 1995-08-21 | 2001-10-09 | Mark F. Jones | Object identification system applications |
| WO1998048446A2 (en) * | 1997-04-21 | 1998-10-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Long-lasting metal halide discharge lamp |
| DE29905662U1 (en) * | 1999-03-26 | 2000-08-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München | Long life metal halide discharge lamp |
| JP4366567B2 (en) * | 2003-05-09 | 2009-11-18 | ウシオ電機株式会社 | High pressure discharge lamp and manufacturing method thereof |
| DE102005026208A1 (en) | 2005-06-07 | 2006-12-14 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Metal halide high-pressure discharge lamp |
| US7486026B2 (en) * | 2006-11-09 | 2009-02-03 | General Electric Company | Discharge lamp with high color temperature |
| WO2010109385A1 (en) | 2009-03-27 | 2010-09-30 | Koninklijke Philips Electronics N.V. | Gobo projector and moving head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3521110A (en) * | 1967-09-25 | 1970-07-21 | Gen Electric | Mercury-metallic halide vapor lamp with regenerative cycle |
| EP0391283A2 (en) * | 1989-04-04 | 1990-10-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Double-based high-pressure discharge lamp |
| EP0545476A1 (en) * | 1991-12-04 | 1993-06-09 | Koninklijke Philips Electronics N.V. | High-pressure discharge lamp |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575630A (en) * | 1968-05-15 | 1971-04-20 | Westinghouse Electric Corp | High pressure mercury vapor discharge lamp containing zirconium iodide |
| DE2114804B2 (en) * | 1971-03-26 | 1978-09-14 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen | Mercury vapor high pressure discharge lamp with the addition of rare earth halides |
| JPS568468B2 (en) * | 1973-07-04 | 1981-02-24 | ||
| JPS5231583A (en) * | 1975-09-05 | 1977-03-10 | Toshiba Corp | Lamp discharging metallic fumes |
| JPS5725665A (en) * | 1980-07-24 | 1982-02-10 | Toshiba Corp | Metal halide lamp |
| JPS59167948A (en) * | 1983-03-15 | 1984-09-21 | Mitsubishi Electric Corp | High pressure metal vapor discharge lamp |
-
1990
- 1990-12-20 DE DE4040858A patent/DE4040858A1/en not_active Withdrawn
-
1991
- 1991-12-05 DE DE59108315T patent/DE59108315D1/en not_active Expired - Fee Related
- 1991-12-05 EP EP91120910A patent/EP0492205B1/en not_active Expired - Lifetime
- 1991-12-10 US US07/805,858 patent/US5323085A/en not_active Expired - Lifetime
- 1991-12-11 JP JP35094291A patent/JP3171895B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3521110A (en) * | 1967-09-25 | 1970-07-21 | Gen Electric | Mercury-metallic halide vapor lamp with regenerative cycle |
| EP0391283A2 (en) * | 1989-04-04 | 1990-10-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Double-based high-pressure discharge lamp |
| EP0545476A1 (en) * | 1991-12-04 | 1993-06-09 | Koninklijke Philips Electronics N.V. | High-pressure discharge lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8569952B2 (en) | 2008-11-06 | 2013-10-29 | Osram Gesellschaft Mit Beschraenkter Haftung | Ceramic metal halide lamp having a high color temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0492205A2 (en) | 1992-07-01 |
| US5323085A (en) | 1994-06-21 |
| DE59108315D1 (en) | 1996-12-05 |
| DE4040858A1 (en) | 1992-06-25 |
| EP0492205A3 (en) | 1992-12-30 |
| JPH04294048A (en) | 1992-10-19 |
| JP3171895B2 (en) | 2001-06-04 |
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