EP0453652A2 - High pressure discharge lamp - Google Patents

High pressure discharge lamp Download PDF

Info

Publication number
EP0453652A2
EP0453652A2 EP90124911A EP90124911A EP0453652A2 EP 0453652 A2 EP0453652 A2 EP 0453652A2 EP 90124911 A EP90124911 A EP 90124911A EP 90124911 A EP90124911 A EP 90124911A EP 0453652 A2 EP0453652 A2 EP 0453652A2
Authority
EP
European Patent Office
Prior art keywords
tube
discharge lamp
pressure discharge
wire
bimetallic strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90124911A
Other languages
German (de)
French (fr)
Other versions
EP0453652A3 (en
EP0453652B1 (en
Inventor
Helmut Weske
Manfred König
Klaus Kramer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0453652A2 publication Critical patent/EP0453652A2/en
Publication of EP0453652A3 publication Critical patent/EP0453652A3/en
Application granted granted Critical
Publication of EP0453652B1 publication Critical patent/EP0453652B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel

Definitions

  • the invention relates to a high-pressure discharge lamp with a discharge tube made of ceramic and a filling of at least sodium, mercury and a noble gas according to the preamble of claim 1.
  • the high-pressure discharge lamp listed in the preamble of claim 1 is a sodium high-pressure discharge lamp, a lamp type which has great advantages due to its high luminous efficacy. Since it has been possible to improve the color rendering properties in addition to the luminous efficacy by appropriate quantity compositions and pressure ratios, high-pressure sodium discharge lamps have also been used increasingly in areas which were previously reserved for high-pressure discharge lamps with a higher color rendering index.
  • High-pressure sodium discharge lamps with higher xenon gas pressures require an ignition aid.
  • This ignition aid normally consists of a wire lying on the outside of the discharge tube, which is electrically connected to one of the two current leads of the lamp. Since it is due to the Auxiliary wire if the lamps are used for an extended period of time, which can lead to electrolysis in the burner tube and thus to the destruction of the burner, a bimetal is connected between the power supply and the auxiliary ignition wire, which, by self-heating, lifts the auxiliary wire from the burner tube after ignition of the high-pressure sodium discharge lamp and thus prevents electrolysis .
  • DE-OS 31 51 513 describes a high pressure sodium discharge lamp with such an ignition aid.
  • the bimetallic strip is fastened with one end in the middle of an auxiliary ignition wire lying along the discharge tube.
  • This frame structure increases the manufacturing costs.
  • the frame results in a much more voluminous lamp, which has to be socketed on one side due to its uneven weight distribution.
  • the frame structure does not allow the lamp to be made in the form of a festoon with base contacts attached to the two ends of the envelope bulb.
  • the object of the invention is to design the ignition aid so that a frame structure in the outer bulb can be dispensed with in the case of the sodium high-pressure discharge lamp.
  • the construction of the ignition aid should be as simple and inexpensive to manufacture as possible.
  • a bimetallic strip, at one end of which one end of the ignition aid wire is attached and which is attached at the other end to the closer niobium tube, results in a very simple construction of the ignition aid. Due to the structure, there is no need for a frame in the envelope bulb, which requires manual assembly of the lamp.
  • the high pressure sodium discharge lamp can be manufactured fully mechanically in the form of a festoon. Due to the small outer dimensions of the festoon shape, the dimensions of the lights for this type of lamp can also be reduced.
  • the connections of bimetal and auxiliary ignition wire or niobium tube are advantageously welded.
  • the auxiliary ignition wire is made of high-melting metal, e.g. Molybdenum or tungsten.
  • the bimetallic strip consists of a thermobimetal and is angled in steps to adapt to the position of the niobium tube and auxiliary ignition wire, the component with the greater coefficient of thermal expansion facing the niobium or discharge tube.
  • the lamp consists of a circular cylindrical discharge tube 1 made of aluminum oxide ceramic, in the ends of which a tungsten electrode 2, 3 is sealed in a gas-tight manner via a niobium tube 4, 5.
  • the niobium tubes 4, 5 are electrically connected to molybdenum sealing foils 10, 11 in the outer bulb 12 via spring molded parts 6, 7 to compensate for different linear expansions and current leads 8, 9.
  • the sealing foils 10, 11 are squeezed in a gas-tight manner into the ends of the circular cylindrical outer bulb 12 made of quartz.
  • the sealing foils 10, 11 embedded in the squeezes 13, 14 are in turn electrically connected to the two bases 17, 18 of the R7s type via external power supply lines 15, 16.
  • a getter 19 is also squeezed in a potential-free manner via a wire.
  • An ignition auxiliary wire 20 made of molybdenum 50 mm long and 0.4 mm thick is placed along the discharge tube 1, one end of which is welded to a thermobimetal strip 21.
  • the other end of the bimetallic strip 21 is welded to the niobium tube 4 of the electrode 2.
  • the bimetallic strip 21 has an active side made of chromium, iron and nickel, which faces the niobium tube or the discharge tube, and a passive side Chrome and iron. It has a rectangular cross section with a thickness of 0.3 mm and a width of 2 mm.
  • the bimetallic strip 21 is first brought into a step-like shape with three sections 21a, b, c, the first section 21a, which is welded to the niobium tube 4, and the third section 21c, to which the ignition aid wire 20 is welded is parallel to each other and the intermediate section 21b forms a right angle with the other two sections 21a, 21c.
  • the length of the sections 21a to 21c is dimensioned such that, in the welded state, the auxiliary ignition wire runs parallel to the outer edge of the discharge tube 1 and is at a distance of 0.5 mm from the discharge tube 1.
  • the angle between the first section 21a and the second section 21b is then increased using an adjusting device until the auxiliary ignition wire 21 lies against the discharge tube 1 over its entire length.
  • the section 21c experiences a kink in the direction of the auxiliary ignition wire 20.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

The high-pressure discharge lamp, having an outer bulb (12) and a ceramic discharge tube (1), has a starting aid in the form of an auxiliary starting wire (20) which runs along the discharge tube (1). One end of the auxiliary starting wire (20) is welded to the one end of a bimetallic strip (21). The other end of the bimetallic strip (21) is welded to the niobium tube (4) of the electrode vacuum-tight seal that is close by. The bimetallic strip (21) is angled in an essentially stepped manner. <IMAGE>

Description

Die Erfindung betrifft eine Hochdruckentladungslampe mit einem Entladungsrohr aus Keramik und einer Füllung aus zumindest Natrium, Quecksilber und einem Edelgas gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a high-pressure discharge lamp with a discharge tube made of ceramic and a filling of at least sodium, mercury and a noble gas according to the preamble of claim 1.

Bei der im Oberbegriff des Anspruchs 1 aufgeführten Hochdruckentladungslampe handelt es sich um eine Natriumhochdruckentladungslampe, einem Lampentyp, der aufgrund seiner hohen Lichtausbeute große Vorzüge besitzt. Seitdem es gelungen ist, durch entsprechende Mengenzusammensetzungen und Druckverhältnisse neben der Lichtausbeute auch die Farbwiedergabeeigenschaften zu verbessern, finden Natriumhochdruckentladungslampen zunehmend auch in Bereichen Anwendung, die bisher Hochdruckentladungslampen mit höherem Farbwiedergabeindex vorbehalten war.The high-pressure discharge lamp listed in the preamble of claim 1 is a sodium high-pressure discharge lamp, a lamp type which has great advantages due to its high luminous efficacy. Since it has been possible to improve the color rendering properties in addition to the luminous efficacy by appropriate quantity compositions and pressure ratios, high-pressure sodium discharge lamps have also been used increasingly in areas which were previously reserved for high-pressure discharge lamps with a higher color rendering index.

Natriumhochdruckentladungslampen mit höheren Xenongasdrücken benötigen eine Zündhilfe. Diese Zündhilfe besteht normalerweise aus einem außen am Entladungsrohr anliegenden Draht, der elektrisch mit einer der beiden Stromzuführungen der Lampe verbunden ist. Da es durch den am Brenner anliegenden Zündhilfsdraht bei längerem Betrieb der Lampen zu einer Elektrolyse im Brennerrohr und damit zu einer Zerstörung des Brenners kommen kann, ist zwischen die Stromzuführung und den Zündhilfsdraht ein Bimetall geschaltet, der durch Eigenerwärmung den Zündhilfsdraht nach der Zündung der Natriumhochdruckentladungslampe vom Brennerrohr abhebt und so die Elektrolyse unterbindet.High-pressure sodium discharge lamps with higher xenon gas pressures require an ignition aid. This ignition aid normally consists of a wire lying on the outside of the discharge tube, which is electrically connected to one of the two current leads of the lamp. Since it is due to the Auxiliary wire if the lamps are used for an extended period of time, which can lead to electrolysis in the burner tube and thus to the destruction of the burner, a bimetal is connected between the power supply and the auxiliary ignition wire, which, by self-heating, lifts the auxiliary wire from the burner tube after ignition of the high-pressure sodium discharge lamp and thus prevents electrolysis .

In der DE-OS 31 51 513 ist eine Natriumhochdruckentladungslampe mit einer solchen Zündhilfe beschrieben. Der Bimetallstreifen ist dabei mit seinem einen Ende in der Mitte eines entlang des Entladungsrohrs anliegenden Zündhilfsdrahts befestigt. Zur Halterung des Bimetalls ist im Außenkolben ein Gestellaufbau mit einem parallel zum Entladungsrohr verlaufenden Befestigungsarm, an dem das andere Ende des Bimetalls angeschweißt ist, montiert. Dieser Gestellaufbau erhöht die Fertigungskosten. Außerdem ergibt sich durch das Gestell eine wesentlich voluminösere Lampe, die aufgrund ihrer ungleichmäßigen Gewichtsverteilung einseitig gesockelt werden muß. Der Gestellaufbau gestattet es nicht, die Lampe in Soffittenform mit an den beiden Enden des Hüllkolbens ansetzenden Sockelkontakten zu erstellen.DE-OS 31 51 513 describes a high pressure sodium discharge lamp with such an ignition aid. The bimetallic strip is fastened with one end in the middle of an auxiliary ignition wire lying along the discharge tube. To hold the bimetal, a frame structure with a mounting arm running parallel to the discharge tube, to which the other end of the bimetal is welded, is mounted in the outer bulb. This frame structure increases the manufacturing costs. In addition, the frame results in a much more voluminous lamp, which has to be socketed on one side due to its uneven weight distribution. The frame structure does not allow the lamp to be made in the form of a festoon with base contacts attached to the two ends of the envelope bulb.

Aufgabe der Erfindung ist es, die Zündhilfe so zu gestalten, daß bei der Natriumhochdruckentladungslampe auf einen Gestellaufbau im Außenkolben verzichtet werden kann. Der Aufbau der Zündhilfe sollte dabei möglichst einfach und kostengünstig herzustellen sein.The object of the invention is to design the ignition aid so that a frame structure in the outer bulb can be dispensed with in the case of the sodium high-pressure discharge lamp. The construction of the ignition aid should be as simple and inexpensive to manufacture as possible.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.The object is achieved by the characterizing features of claim 1. Further advantageous features can be found in the subclaims.

Durch einen Bimetallstreifen, an dessen einem Ende ein Ende des Zündhilfsdrahtes befestigt ist und der mit seinem anderen Ende am näherliegenden Niobrohr befestigt ist, ergibt sich ein sehr einfacher Aufbau der Zündhilfe. Aufgrund des Aufbaus kann auf ein Gestell im Hüllkolben, das eine Handmontage der Lampe bedingt, verzichtet werden. Die Natriumhochdruckentladungslampe kann vollmechanisch in Soffittenform hergestellt werden. Durch die kleinen Außenmaße der Soffittenform lassen sich auch die Abmessungen der Leuchten für diesen Lampentyp reduzieren.A bimetallic strip, at one end of which one end of the ignition aid wire is attached and which is attached at the other end to the closer niobium tube, results in a very simple construction of the ignition aid. Due to the structure, there is no need for a frame in the envelope bulb, which requires manual assembly of the lamp. The high pressure sodium discharge lamp can be manufactured fully mechanically in the form of a festoon. Due to the small outer dimensions of the festoon shape, the dimensions of the lights for this type of lamp can also be reduced.

Vorteilhaft sind die Verbindungen von Bimetall und Zündhilfsdraht bzw. Niobrohr geschweißt. Der Zündhilfsdraht ist aus hochschmelzendem Metall, wie z.B. Molybdän oder Wolfram. Der Bimetallstreifen besteht aus einem Thermobimetall und ist zur Anpassung an die Lage von Niobrohr und Zündhilfsdraht stufenförmig abgewinkelt, wobei der Bestandteil mit dem größeren Wärmeausdehnungskoeffizienten dem Niob- bzw. Entladungsrohr zugewandt ist.The connections of bimetal and auxiliary ignition wire or niobium tube are advantageously welded. The auxiliary ignition wire is made of high-melting metal, e.g. Molybdenum or tungsten. The bimetallic strip consists of a thermobimetal and is angled in steps to adapt to the position of the niobium tube and auxiliary ignition wire, the component with the greater coefficient of thermal expansion facing the niobium or discharge tube.

Die Erfindung ist anhand des nachfolgenden Ausführungsbeispiels näher veranschaulicht.

Figur 1
zeigt eine Seitenansicht einer Natriumhochdruckentladungslampe
Figur 2
zeigt eine Seitenansicht der um die Lampenlängsachse um 90° gedrehten Natriumhochdruckentladungslampe gemäß Figur 1
The invention is illustrated in more detail using the following exemplary embodiment.
Figure 1
shows a side view of a high pressure sodium discharge lamp
Figure 2
shows a side view of the sodium high-pressure discharge lamp according to FIG. 1 rotated about the lamp longitudinal axis by 90 °

In Figur 1 und 2 ist eine erfindungsgemäße Natriumhochdruckentladungslampe in Soffittenform mit einer Leistungsaufnahme von 70 W wiedergegeben. Die Lampe besteht aus einem kreiszylindrischen Entladungsrohr 1 aus Aluminiumoxidkeramik, in dessen Enden je eine Wolfram-Elektrode 2, 3 über ein Niobrohr 4, 5 gasdicht eingeschmolzen ist. Die Niobrohre 4, 5 sind über Federformteile 6, 7 zum Ausgleich von unterschiedlichen Längenausdehnungen und Stromzuführungen 8, 9 mit Molybdändichtungsfolien 10, 11 im Außenkolben 12 elektrisch verbunden. Die Dichtungsfolien 10, 11 sind in die Enden des kreiszylindrischen Außenkolbens 12 aus Quarz gasdicht eingequetscht. Die in den Quetschungen 13, 14 eingebetteten Dichtungsfolien 10, 11 sind wiederum über äußere Stromzuführungen 15, 16 mit den beiden Sockeln 17, 18 vom Typ R7s elektrisch verbunden. In der Quetschung 14 des Außenkolbens 12 ist außerdem ein Getter 19 über einen Draht potentialfrei eingequetscht.1 and 2 show a high-pressure sodium discharge lamp according to the invention in the form of a festoon with a power consumption of 70 W. The lamp consists of a circular cylindrical discharge tube 1 made of aluminum oxide ceramic, in the ends of which a tungsten electrode 2, 3 is sealed in a gas-tight manner via a niobium tube 4, 5. The niobium tubes 4, 5 are electrically connected to molybdenum sealing foils 10, 11 in the outer bulb 12 via spring molded parts 6, 7 to compensate for different linear expansions and current leads 8, 9. The sealing foils 10, 11 are squeezed in a gas-tight manner into the ends of the circular cylindrical outer bulb 12 made of quartz. The sealing foils 10, 11 embedded in the squeezes 13, 14 are in turn electrically connected to the two bases 17, 18 of the R7s type via external power supply lines 15, 16. In the pinch 14 of the outer bulb 12, a getter 19 is also squeezed in a potential-free manner via a wire.

Längs des Entladungsrohres 1 ist ein Zündhilfsdraht 20 aus Molybdän von 50 mm Länge und 0,4 mm Dicke gelegt, dessen eines Ende mit einem Thermobimetallstreifen 21 verschweißt ist. Das andere Ende des Thermobimetallstreifens 21 ist mit dem Niobrohr 4 der Elektrode 2 verschweißt. Der Thermobimetallstreifen 21 besitzt eine aktive Seite aus Chrom, Eisen und Nickel, die dem Niobrohr bzw. dem Entladungsrohr zugewandt ist, und eine passive Seite aus Chrom und Eisen. Er hat einen rechteckigen Querschnitt mit einer Dicke von 0,3 mm und einer Breite von 2 mm. Bei der Herstellung der Zündhilfe wird der Bimetallstreifen 21 zuerst in eine stufenförmige Form mit drei Abschnitten 21a, b, c gebracht, wobei der erste Abschnitt 21a, der mit dem Niobrohr 4 verschweißt ist, und der dritte Abschnitt 21c, an dem der Zündhilfsdraht 20 angeschweißt ist, parallel zueinander verlaufen und der dazwischenliegende Abschnitt 21b einen rechten Winkel mit den beiden anderen Abschnitten 21a, 21c bildet. Die Länge der Abschnitte 21a bis 21c ist dabei so bemessen, daß im verschweißten Zustand der Zündhilfsdraht parallel zur Außenkante des Entladungsrohrs 1 verläuft und einen Abstand von 0,5 mm zum Entladungsrohr 1 besitzt. Anschließend wird mit einer Justiervorrichtung der Winkel zwischen dem ersten Abschnitt 21a und dem zweiten Abschnitt 21b so lange vergrößert, bis der Zündhilfsdraht 21 über seine gesamte Länge am Entladungsrohr 1 anliegt. Der Abschnitt 21c erfährt dabei eine Abknickung in Richtung Zündhilfsdraht 20. Mit einem so geformten Bimetallstreifen 21 ergibt sich eine optimale Zündhilfe. In kaltem Zustand der Lampe wird der Zündhilfsdraht 20 über seine gesamte Länge gegen das Entladungsrohr 1 gedrückt und nach der Zündung aufgrund der Erwärmung des Bimetallstreifens 21 vollständig vom Entladungsrohr 1 abgehoben.An ignition auxiliary wire 20 made of molybdenum 50 mm long and 0.4 mm thick is placed along the discharge tube 1, one end of which is welded to a thermobimetal strip 21. The other end of the bimetallic strip 21 is welded to the niobium tube 4 of the electrode 2. The bimetallic strip 21 has an active side made of chromium, iron and nickel, which faces the niobium tube or the discharge tube, and a passive side Chrome and iron. It has a rectangular cross section with a thickness of 0.3 mm and a width of 2 mm. In the manufacture of the ignition aid, the bimetallic strip 21 is first brought into a step-like shape with three sections 21a, b, c, the first section 21a, which is welded to the niobium tube 4, and the third section 21c, to which the ignition aid wire 20 is welded is parallel to each other and the intermediate section 21b forms a right angle with the other two sections 21a, 21c. The length of the sections 21a to 21c is dimensioned such that, in the welded state, the auxiliary ignition wire runs parallel to the outer edge of the discharge tube 1 and is at a distance of 0.5 mm from the discharge tube 1. The angle between the first section 21a and the second section 21b is then increased using an adjusting device until the auxiliary ignition wire 21 lies against the discharge tube 1 over its entire length. The section 21c experiences a kink in the direction of the auxiliary ignition wire 20. With a bimetal strip 21 shaped in this way, an optimal ignition aid is obtained. When the lamp is cold, the auxiliary ignition wire 20 is pressed against the discharge tube 1 over its entire length and, after ignition, is completely lifted off the discharge tube 1 due to the heating of the bimetal strip 21.

Claims (5)

Hochdruckentladungslampe, bestehend aus einem Außenkolben (12) aus Quarz oder Glas, der ein inneres Entladungsrohr (1) aus Keramik umschließt, wobei in beide Enden des Entladungsrohrs (1) jeweils über ein Niobrohr (4, 5) eine Elektrode (2, 3) gasdicht eingeschmolzen ist, das Entladungsrohr (1) eine Füllung aus zumindest Natrium, Quecksilber und einem Edelgas enthält und mit einer Zündhilfe im Außenkolben (12) ausgestattet ist, die aus einem längs des Entladungsrohrs (1) anliegenden Zündhilfsdraht (20) besteht, der mittels eines am Zündhilfsdraht (20) befestigten Bimetallstreifens (21) vollständig vom Entladungsrohr (1) abgehoben wird, wenn er beim Betrieb der Lampe erwärmt wird, dadurch gekennzeichnet, daß ein Ende des Bimetallstreifens (21) mit dem einen Ende des Zündhilfsdrahts (20) und das andere Ende des Bimetallstreifens (21) mit dem näherliegenden Niobrohr (4) verbunden ist.High-pressure discharge lamp, consisting of an outer bulb (12) made of quartz or glass, which encloses an inner discharge tube (1) made of ceramic, an electrode (2, 3) in both ends of the discharge tube (1) each having a niobium tube (4, 5) is melted in a gastight manner, the discharge tube (1) contains a filling of at least sodium, mercury and a noble gas and is equipped with an ignition aid in the outer bulb (12), which consists of an ignition aid wire (20) lying along the discharge tube (1), which means a bimetallic strip (21) attached to the auxiliary ignition wire (20) is completely lifted off the discharge tube (1) when it is heated during operation of the lamp, characterized in that one end of the bimetallic strip (21) with one end of the auxiliary ignition wire (20) and the other end of the bimetallic strip (21) is connected to the closer niobium tube (4). Hochdruckentladungslampe nach Anspruch 1, dadurch gekennzeichnet, daß der Bimetallstreifen (21) mit dem Zündhilfsdraht (20) verschweißt ist.High-pressure discharge lamp according to Claim 1, characterized in that the bimetallic strip (21) is welded to the auxiliary ignition wire (20). Hochdruckentladungslampe nach Anspruch 1, dadurch gekennzeichnet, daß der Bimetallstreifen (21) am Niobrohr (4) angeschweißt ist.High-pressure discharge lamp according to Claim 1, characterized in that the bimetal strip (21) is welded to the niobium tube (4). Hochdruckentladungslampe nach Anspruch 1, dadurch gekennzeichnet, daß der Zündhilfsdraht (20) aus hochschmelzendem Metall besteht.High-pressure discharge lamp according to Claim 1, characterized in that the auxiliary ignition wire (20) consists of high-melting metal. Hochdruckentladungslampe nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Bimetallstreifen (21) im wesentlichen stufenförmig abgewinkelt ist.High-pressure discharge lamp according to Claims 1 to 3, characterized in that the bimetal strip (21) is angled essentially in a step-like manner.
EP90124911A 1990-04-27 1990-12-20 High pressure discharge lamp Expired - Lifetime EP0453652B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004811U 1990-04-27
DE9004811U DE9004811U1 (en) 1990-04-27 1990-04-27 High pressure discharge lamp

Publications (3)

Publication Number Publication Date
EP0453652A2 true EP0453652A2 (en) 1991-10-30
EP0453652A3 EP0453652A3 (en) 1992-03-25
EP0453652B1 EP0453652B1 (en) 1995-08-30

Family

ID=6853294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124911A Expired - Lifetime EP0453652B1 (en) 1990-04-27 1990-12-20 High pressure discharge lamp

Country Status (5)

Country Link
US (1) US5079479A (en)
EP (1) EP0453652B1 (en)
JP (1) JP2597525Y2 (en)
KR (1) KR0110029Y1 (en)
DE (2) DE9004811U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562680A1 (en) * 1992-03-27 1993-09-29 Koninklijke Philips Electronics N.V. High pressure discharge lamp
EP0592040A1 (en) * 1992-10-08 1994-04-13 Koninklijke Philips Electronics N.V. High pressure discharge lamp
WO2008009713A1 (en) * 2006-07-21 2008-01-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp with ignition assisting element
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355053A (en) * 1992-11-24 1994-10-11 Osram Sylvania Inc. High pressure sodium lamp starting aid
CN100380570C (en) * 1998-03-19 2008-04-09 皇家菲利浦电子有限公司 Unit comprising short-arc discharge lamp with starting antenna
DE19911727A1 (en) * 1999-03-16 2000-09-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure sodium lamp with ignition aid
US6538377B1 (en) * 2000-11-03 2003-03-25 General Electric Company Means for applying conducting members to arc tubes
DE10262017B4 (en) * 2002-02-22 2010-05-06 Trumpf Laser Gmbh + Co. Kg Pump light source for laser-active media
DE102005007679A1 (en) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Burner for gas discharge lamp, has inlet pipes connected to electrodes, respectively, where one pipe is partially formed as transparent conductive oxide layer which is arranged on outer surface of electric arc
DE102005007680A1 (en) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Gas discharge lamp for motor vehicle-headlight, has electrodes extending into hollow space and ignition aid electrode arranged as electrically conducting layer, where conducting layer is formed as layer of transparent conducting oxide
KR100817485B1 (en) * 2007-08-28 2008-03-31 김선호 Discharge element with discharge-control electrode and the control circuit thereof
WO2014088733A1 (en) * 2012-12-06 2014-06-12 General Electric Company Conductive layer net ignition aids
RU2673561C1 (en) * 2016-06-14 2018-11-28 Плусрайт Электрик (Чайна) Ко., Лтд Supporting high-intensive photosynthetically usable radiation high-voltage sodium lamp with trigger-launching switch
CN105895499A (en) * 2016-06-14 2016-08-24 普罗斯电器（中国）有限公司 High PAR (photosynthetically available radiation) retention rate type high pressure sodium lamp
NL2017507B1 (en) * 2016-09-21 2018-03-29 Aruna Lighting Holding B V Discharge lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305020A1 (en) * 1975-03-19 1976-10-15 Philips Nv DISCHARGE LAMP IN GAS AND / OR VAPOR
JPS51135192A (en) * 1975-05-19 1976-11-24 Hitachi Ltd Discharge lamp
GB2090464A (en) * 1980-12-29 1982-07-07 Gen Electric Starting aid for high pressure lamp
EP0075366A2 (en) * 1981-09-17 1983-03-30 Koninklijke Philips Electronics N.V. High-pressure metal vapour discharge lamp
JPS6237866A (en) * 1985-08-09 1987-02-18 Matsushita Electronics Corp High pressure sodium lamp
DE3923698A1 (en) * 1988-07-28 1990-02-01 Gen Electric CAPACITIVE IGNITION ELECTRODES FOR HID LAMPS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284103A (en) * 1939-09-20 1942-05-26 Gen Electric Thermal switch
US3755708A (en) * 1972-06-02 1973-08-28 Gte Sylvania Inc Sodium vapor lamps having improved starting means
JPS53117271A (en) * 1977-03-22 1978-10-13 Hitachi Ltd High pressure sodium vapor lamp
JPS54479A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Mercury lamp of the type started by preheater
DE8702658U1 (en) * 1987-02-20 1987-04-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München High pressure discharge lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305020A1 (en) * 1975-03-19 1976-10-15 Philips Nv DISCHARGE LAMP IN GAS AND / OR VAPOR
JPS51135192A (en) * 1975-05-19 1976-11-24 Hitachi Ltd Discharge lamp
GB2090464A (en) * 1980-12-29 1982-07-07 Gen Electric Starting aid for high pressure lamp
EP0075366A2 (en) * 1981-09-17 1983-03-30 Koninklijke Philips Electronics N.V. High-pressure metal vapour discharge lamp
JPS6237866A (en) * 1985-08-09 1987-02-18 Matsushita Electronics Corp High pressure sodium lamp
DE3923698A1 (en) * 1988-07-28 1990-02-01 Gen Electric CAPACITIVE IGNITION ELECTRODES FOR HID LAMPS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1, no. 23 (M-11)25. März 1977 & JP-A-51 135 192 ( HITACHI SEISAKUSHO K. K. ) 24. November 1976 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 217 (E-523)(2664) 14. Juli 1987 & JP-A-62 037 866 ( MATSUSHITA ELECTRONICS CORP ) 18. Februar 1987 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562680A1 (en) * 1992-03-27 1993-09-29 Koninklijke Philips Electronics N.V. High pressure discharge lamp
US5325017A (en) * 1992-03-27 1994-06-28 U.S. Philips Corporation High-pressure discharge lamp having solid state getter mounted on bimetallic element
CN1054466C (en) * 1992-03-27 2000-07-12 皇家菲利浦电子有限公司 High-pressure discharge lamp
EP0592040A1 (en) * 1992-10-08 1994-04-13 Koninklijke Philips Electronics N.V. High pressure discharge lamp
WO2008009713A1 (en) * 2006-07-21 2008-01-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp with ignition assisting element
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid

Also Published As

Publication number Publication date
JPH0499353U (en) 1992-08-27
EP0453652A3 (en) 1992-03-25
DE59009592D1 (en) 1995-10-05
KR0110029Y1 (en) 1997-11-24
EP0453652B1 (en) 1995-08-30
JP2597525Y2 (en) 1999-07-05
DE9004811U1 (en) 1990-07-05
US5079479A (en) 1992-01-07

Similar Documents

Publication Publication Date Title
EP0453652B1 (en) High pressure discharge lamp
EP0479087B1 (en) High pressure discharge lamp
EP0110054B1 (en) High pressure discharge lamp with a socket and fitting holder
DE69820992T2 (en) HIGH PRESSURE DISCHARGE LAMP
EP0839381A1 (en) Reflector lamp
EP2306492A1 (en) High pressure discharge lamp with capacitive ignition aid
DE3739008A1 (en) HIGH PRESSURE DISCHARGE LAMP
DE1589106C3 (en)
DE69107572T2 (en) Metal halide lamp.
DE3151513C2 (en) High pressure metal halide lamp
EP0479088A1 (en) High pressure discharge lamp and method for producing the same
EP0168031B1 (en) Electrical lamp
DE69018595T2 (en) Electric discharge lamp and starting means with a thermal switch for such a lamp.
EP0220673B1 (en) High-pressure discharge lamp
DE9205537U1 (en) Single-ended high-pressure discharge lamp
DE69020465T2 (en) Electrical metal vapor discharge lamp pinched on one side.
EP0446461B1 (en) Halogen incandescent lamp having a single pinch
DE8702658U1 (en) High pressure discharge lamp
DE10312748A1 (en) discharge lamp
EP1709668B1 (en) Low-pressure discharge lamp
DE9102566U1 (en) Halogen bulb
EP0250920B1 (en) High-pressure metal halide discharge lamp
DE102010038403A1 (en) High pressure discharge lamp with ignition aid
DE2549419B2 (en) Rectangular fluorescent lamp and process for its manufacture
AT398864B (en) HALOGEN BULB

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

17P Request for examination filed

Effective date: 19901220

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT

17Q First examination report despatched

Effective date: 19940321

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT

REF Corresponds to:

Ref document number: 59009592

Country of ref document: DE

Date of ref document: 19951005

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19951109

ET Fr: translation filed
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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20031204

Year of fee payment: 14

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

Ref country code: BE

Payment date: 20031209

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20031219

Year of fee payment: 14

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

Ref country code: GB

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

Effective date: 20041220

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: 20041231

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

Ref country code: DE

Payment date: 20050217

Year of fee payment: 15

BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20041231

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

Effective date: 20041220

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: 20050831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051220

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: 20060701

BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20041231