EP0991107A1 - Discharge lamp and lighting device comprising a discharge lamp - Google Patents
Discharge lamp and lighting device comprising a discharge lamp Download PDFInfo
- Publication number
- EP0991107A1 EP0991107A1 EP99112643A EP99112643A EP0991107A1 EP 0991107 A1 EP0991107 A1 EP 0991107A1 EP 99112643 A EP99112643 A EP 99112643A EP 99112643 A EP99112643 A EP 99112643A EP 0991107 A1 EP0991107 A1 EP 0991107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge lamp
- lamp
- discharge
- translucent
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 12
- 229910052754 neon Inorganic materials 0.000 claims description 9
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 3
- 229910006404 SnO 2 Inorganic materials 0.000 description 4
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003287 optical effect 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
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
Definitions
- the invention relates to a discharge lamp according to the preamble of Claim 1 and a lighting system with a discharge lamp.
- Such a discharge lamp is for example in the American one Patent US 5,420,481.
- This patent describes a discharge lamp external electrodes applied to their discharge vessel that are designed as transparent ITO layers.
- European patent EP 0 334 208 describes one in a reflector arranged discharge lamp, the discharge vessel of a cylindrical, glass thermal pitot tube is surrounded.
- the thermal pitot tube is included an ITO layer to approximate the color temperature of the lamp Lower 600 Kelvin.
- the aforementioned discharge lamps have the disadvantage that their operation on an electronic control gear, which the lamp is usually equipped with medium-frequency supply voltage in the range of approximately 20 KHz feeds up to 100 kHz, can interfere with the reception of radio equipment.
- the discharge lamp according to the invention has at least one translucent one Lamp vessel which encloses the discharge space of the discharge lamp, a lamp and electrical connections for their power supply.
- the at least one lamp vessel has one translucent, electrically conductive layer on at least the discharge space of the lamp. Under the discharge space is here only the part of the interior that is effective for gas discharge in the lamp understood the at least one lamp vessel.
- the invention Coating therefore extends at least over those parts of the vessel at least one lamp vessel, which enclose the discharge plasma.
- the translucent, electrically conductive Layer advantageously on the outer surface of the at least applied a lamp vessel.
- the specific surface resistance of the translucent, electrically conductive layer advantageously less than 100 ohms per Square.
- the specific surface resistance of an electrically conductive layer is usually measured with the help of two flat electrodes, which are applied to the layer to be measured so that they are facing each other are arranged opposite one another.
- the distance between the two measuring electrodes is the same size as the width of the measuring electrodes, so that between the two Measuring electrodes a square section of the layer to be measured is arranged.
- a current is given to the layer via the measuring electrodes Current intensity and the voltage drop across the measuring electrodes determined by means of a galvanometer.
- the quotient from the measured Voltage drop and the current strength of the impressed current results the specific surface resistance of the layer to be measured.
- the surface resistance of the layer is independent of the size the square area of the layer. It just depends on that Quotients from the specific electrical resistance of the layer material and the layer thickness.
- the unit of surface resistivity is usually referred to as ohms per square.
- the translucent, electrically conductive layer is advantageously as ITO layer, that is, formed as an indium tin oxide layer.
- a discharge lamp that is predominantly yellow, orange, or red Light emitted.
- the layer thickness of the translucent, electrically conductive Layer is therefore advantageously chosen so that the coated lamp vessel as far as possible in the wavelength range from 550 nm to 700 nm high transparency, that is, a transmission coefficient of greater than 0.8.
- the thickness of the translucent, electrically conductive layer on the one hand, it must be sufficiently large to have sufficient electrical power To ensure conductivity, but also sufficient be small in order to still have sufficient light transmission.
- the discharge lamp is designed as a neon gas discharge lamp. That lamp mainly produces orange or red light. It can therefore advantageously as part of a lighting system in a motor vehicle, to generate the flashing light or the tail light and / or brake light, be used.
- the lighting system according to the invention has a discharge lamp and an operating device for the discharge lamp, wherein the discharge lamp at least one enclosing the discharge space of the lamp Lamp vessel has that with a translucent, electrically conductive Layer is provided, wherein this layer is at least over the discharge space extends and to a predetermined electrical reference potential, which advantageously the circuit-internal ground potential of the operating device or the earth potential is connected.
- a translucent, electrically conductive Layer is provided, wherein this layer is at least over the discharge space extends and to a predetermined electrical reference potential, which advantageously the circuit-internal ground potential of the operating device or the earth potential is connected.
- the reflector has of the lighting system according to the invention advantageously a metallic or a metallized reflection surface.
- the reflector practices therefore also a shielding effect on that of the discharge plasma electromagnetic radiation generated in the discharge lamp.
- This allows the layer thickness of the translucent, electrically conductive Layer on the reflector or the interior of the lamp facing Wall areas of the at least one lamp vessel advantageously run less than on those facing away from the reflector Wall areas of the at least one lamp vessel, and on this Way the light transmission of the wall areas facing the reflector increases and the efficiency of the lighting system according to the invention be improved.
- the at least one lamp vessel advantageously has one cylindrical vessel part and two angled in the direction of the reflector End up. This ensures that the dark ends of the Discharge lamp equipped with the electrical connections of the lamp are not visible. Alternatively, the dark ends of the Discharge lamp also in shadowed areas of the lighting device be relocated.
- Lighting system is the layer thickness of the translucent, electrically conductive layer on the wall areas facing away from the reflector of the at least one lamp vessel 300 nm Wall areas a particularly high transparency for light with a wavelength from 600 nm.
- This lighting system is therefore advantageously suitable for use in a motor vehicle to generate the Tail light and / or the brake light.
- FIG. 1 it is a neon gas discharge lamp.
- That lamp has a tubular, glass discharge vessel 1 with two right angles, Ends angled in the same direction 1a.
- Electrode system 2 of the neon gas discharge lamp melted down gas-tight.
- the current leads protruding from the melting area 1aa 2a form the electrical connections of the lamp.
- the discharge vessel 1 has a circular cylindrical shape at the ends 1a.
- the outer diameter of the discharge vessel 1 is approximately 5 mm.
- the distance between the power leads 2a which is approximately the length of the circular cylindrical discharge vessel part 1b corresponds to 308 mm.
- the angled ends 1a have a length of 36.2 mm.
- the outer surface of the discharge vessel 1 is provided with a so-called ITO layer 4 - this is an indium tin oxide layer - which extends over the entire discharge space 3 of the neon gas discharge lamp as far as the melting areas 1aa of the electrodes 2.
- the discharge space 3 is defined here by the ends of the two electrodes 2 on the discharge side and the inner diameter of the discharge vessel 1.
- the ITO layer 4 measured using the four-point measurement method, has a specific surface resistance of 14 ohms per square. It consists of 90 percent by weight indium oxide In 2 O 3 and 10 percent by weight tin oxide SnO 2 .
- the transmission curve 1 shows the light transmittance of the discharge vessel 1 with ITO layer 4 as a function of the wavelength
- the transmission curve 2 shows the light transmittance of the discharge vessel without ITO layer.
- the layer thickness of the ITO layer is coordinated in such a way that the transmission curve 1 has a transmission maximum at a wavelength of 600 nm, that is to say for red light which is emitted predominantly by the neon gas discharge lamp.
- the layer thickness of the ITO layer 4 is therefore approximately 300 nm.
- the transmission of the coated lamp vessel 1 is more than 80% of the light impinging on the inner wall of the discharge vessel 1, that is to say the transmission coefficient therein Wavelength range greater than 0.8.
- a transmission coefficient of more than 0.85 is achieved.
- the neon gas discharge lamp described above is preferably a component a lighting system, in particular a motor vehicle rear light and serves to generate a tail light and / or a brake light.
- this rear light also includes an electronic control gear for the neon gas discharge lamp and one trough-shaped reflector 5, which between the angled ends 1 a Lamp is arranged.
- the circular cylindrical vessel part 1b of the discharge vessel 1 is arranged approximately in the optical axis of the reflector 5.
- the reflection surface 5a of the reflector 5 facing the lamp is metallic or metallized and with the internal circuit potential of the Control gear connected.
- the ITO layer 4 of the discharge vessel 1 is also connected to the internal circuit potential of the control gear.
- the lighting device also has a housing (not shown) on, the metallized parts also to the internal circuit potential are connected so that a star-shaped contact in a common ground point.
- a housing not shown
- the metallized parts also to the internal circuit potential are connected so that a star-shaped contact in a common ground point.
- On the reflector 5 facing Wall areas 10a of the discharge vessel 1 have the ITO layer 4 a smaller layer thickness than that facing away from the reflector 5 Wall regions 10b of the discharge vessel 1.
- the layer thickness of the ITO layer 4 is on the wall areas facing away from the reflector 5 10b has a value of approx. 300 nm while it is on the reflector 5 facing wall regions 10a measures approximately 100 nm.
- ITO layer 4 does not have to cover the whole Extend discharge vessel 1. Those wall areas are sufficient of the discharge vessel 1, which the space between the discharge side Enclose ends of the two electrodes 2 to be provided with the ITO layer 4.
- the invention can also be applied to other types of discharge lamps, for example on low-pressure discharge lamps or on high-pressure discharge lamps and on lighting systems with a high-pressure discharge lamp such as one with a high pressure discharge lamp equipped automotive headlights can be applied.
- a high-pressure discharge lamp such as one with a high pressure discharge lamp equipped automotive headlights can be applied.
- it is a single-sided high-pressure discharge lamp, which is a discharge vessel enclosed by a glass outer bulb has, the outer bulb with a translucent, electrically conductive layer - preferably an ITO layer which extends over the entire discharge space of the lamp.
- the High-pressure discharge lamp is preferably part of a motor vehicle headlight and is operated on an electronic control gear.
- the translucent, electrically conductive layer on the outer bulb The high-pressure discharge lamp is connected to the internal ground potential connected to the control gear.
- translucent, electrically conductive layers which consist of another material, for example of tin oxide SnO 2 or of tin oxide SnO 2 : F or SnO 2 : Sb doped with fluorine or antimony.
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Die Erfindung betrifft eine Entladungslampe gemäß des Oberbegriffes des
Patentanspruchs 1 sowie ein Beleuchtungssystem mit einer Entladungslampe.The invention relates to a discharge lamp according to the preamble of
Eine derartige Entladungslampe ist beispielsweise in der amerikanischen Patentschrift US 5,420,481 offenbart. Diese Patentschrift beschreibt eine Entladungslampe, auf deren Entladungsgefäß Außenelektroden aufgebracht sind, die als transparente ITO-Schichten ausgebildet sind.Such a discharge lamp is for example in the American one Patent US 5,420,481. This patent describes a discharge lamp external electrodes applied to their discharge vessel that are designed as transparent ITO layers.
Die europäische Patentschrift EP 0 334 208 beschreibt eine in einem Reflektor
angeordnete Entladungslampe, deren Entladungsgefäß von einem zylindrischen,
gläsernen Wärmestaurohr umgeben ist. Das Wärmestaurohr ist mit
einer ITO-Schicht versehen, um die Farbtemperatur der Lampe um ungefähr
600 Kelvin abzusenken.
Die vorgenannten Entladungslampen besitzen den Nachteil, daß ihr Betrieb an einem elektronischen Betriebsgerät, das die Lampe üblicherweise mit einer mittelfrequenten Versorgungsspannung im Bereich von ungefähr 20 KHz bis 100 KHz speist, den Empfang von Rundfunkgeräten stören kann.The aforementioned discharge lamps have the disadvantage that their operation on an electronic control gear, which the lamp is usually equipped with medium-frequency supply voltage in the range of approximately 20 KHz feeds up to 100 kHz, can interfere with the reception of radio equipment.
Es ist die Aufgabe der Erfindung eine Entladungslampe bereitzustellen, die die Nachteile des Standes der Technik vermeidet. It is the object of the invention to provide a discharge lamp which avoids the disadvantages of the prior art.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale
des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der
Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the characterizing features
of
Die erfindungsgemäße Entladungslampe besitzt mindestens ein lichtdurchlässiges Lampengefäß, das den Entladungsraum der Entladungslampe umschließt, ein Leuchtmittel und elektrische Anschlüsse zu ihrer Spannungsversorgung. Erfindungsgemäß weist das mindestens eine Lampengefäß eine lichtdurchlässige, elektrisch leitfähige Schicht auf, die zumindest den Entladungsraum der Lampe umschließt. Unter dem Entladungsraum wird hier nur der für die Gasentladung in der Lampe wirksame Teil des Innenraums des mindestens einen Lampengefäßes verstanden. Die erfindungsgemäße Beschichtung erstreckt sich daher zumindest über diejenigen Gefäßteile des mindestens einen Lampengefäßes, die das Entladungsplasma umschließen. Durch die erfindungsgemäße Beschichtung des mindestens einen Lampengefäßes wird beim Betrieb der Entladungslampe an einer mittelfrequenten Wechselspannung die von dem im Lampengefäß eingeschlossenen Entladungsplasma emittierte mittelfrequente elektromagnetische Strahlung um mehr als 50 Dezibel geschwächt. Eine Störung des Rundfunkempfanges findet daher selbst dann nicht statt, wenn die erfindungsgemäße Entladungslampe in der Nähe der Antenne eines Rundfunkempfängers an einem elektronischen Betriebsgerät betrieben wird.The discharge lamp according to the invention has at least one translucent one Lamp vessel which encloses the discharge space of the discharge lamp, a lamp and electrical connections for their power supply. According to the invention, the at least one lamp vessel has one translucent, electrically conductive layer on at least the discharge space of the lamp. Under the discharge space is here only the part of the interior that is effective for gas discharge in the lamp understood the at least one lamp vessel. The invention Coating therefore extends at least over those parts of the vessel at least one lamp vessel, which enclose the discharge plasma. By coating the at least one lamp vessel according to the invention is operated at a medium frequency when the discharge lamp is in operation AC voltage from the discharge plasma enclosed in the lamp vessel emitted medium-frequency electromagnetic radiation weakened by more than 50 decibels. A disturbance in the radio reception takes place therefore does not take place even if the discharge lamp according to the invention near the antenna of a radio receiver on an electronic Operating device is operated.
Aus fertigungstechnischen Gründen ist die lichtdurchlässige, elektrisch leitfähige Schicht vorteilhafterweise auf der äußeren Oberfläche des mindestens einen Lampengefäßes aufgebracht. Um eine zufriedenstellende elektromagnetische Verträglichkeit der erfindungsgemäßen Entladungslampe zu gewährleisten, ist der spezifische Oberflächenwiderstand der lichtdurchlässigen, elektrisch leitenden Schicht vorteilhafterweise kleiner als 100 Ohm pro Square. For technical reasons, it is translucent, electrically conductive Layer advantageously on the outer surface of the at least applied a lamp vessel. To a satisfactory electromagnetic To ensure compatibility of the discharge lamp according to the invention, is the specific surface resistance of the translucent, electrically conductive layer advantageously less than 100 ohms per Square.
Der spezifische Oberflächenwiderstand einer elektrisch leitfähigen Schicht wird üblicherweise mit Hilfe von zwei flächenhaften Elektroden gemessen, die auf der zu messenden Schicht aufgebracht werden, so daß sie einander gegenüberliegend angeordnet sind. Der Abstand der beiden Meßelektroden ist genauso groß wie die Breite der Meßelektroden, so daß zwischen den beiden Meßelektroden ein quadratischer Ausschnitt der zu messenden Schicht angeordnet ist. Über die Meßelektroden wird der Schicht ein Strom vorgegebener Stromstärke aufgeprägt und der Spannungsabfall über den Meßelektroden mittels eines Galvanometers bestimmt. Der Quotient aus dem gemessenen Spannungsabfall und der Stromstärke des aufgeprägten Stromes ergibt den spezifischen Oberflächenwiderstand der zu messenden Schicht. Der spezifische Oberflächenwiderstand der Schicht ist unabhängig von der Größe des quadratischen Flächenauschnittes der Schicht. Er hängt nur von dem Quotienten aus dem spezifischen elektrischen Widerstand des Schichtmaterials und der Schichtdicke ab. Die Einheit des spezifischen Oberflächenwiderstandes wird üblicherweise mit Ohm pro Square bezeichnet.The specific surface resistance of an electrically conductive layer is usually measured with the help of two flat electrodes, which are applied to the layer to be measured so that they are facing each other are arranged opposite one another. The distance between the two measuring electrodes is the same size as the width of the measuring electrodes, so that between the two Measuring electrodes a square section of the layer to be measured is arranged. A current is given to the layer via the measuring electrodes Current intensity and the voltage drop across the measuring electrodes determined by means of a galvanometer. The quotient from the measured Voltage drop and the current strength of the impressed current results the specific surface resistance of the layer to be measured. The specific one The surface resistance of the layer is independent of the size the square area of the layer. It just depends on that Quotients from the specific electrical resistance of the layer material and the layer thickness. The unit of surface resistivity is usually referred to as ohms per square.
Die lichtdurchlässige, elektrisch leitfähige Schicht ist vorteilhafterweise als ITO-Schicht, das heißt, als Indium-Zinn-Oxid-Schicht ausgebildet. Bei dem besonders bevorzugten Ausführungsbeispiel der Erfindung handelt es sich um eine Entladungslampe, die vorwiegend gelbes, orangefarbenes oder rotes Licht emittiert. Die Schichtdicke der lichtdurchlässigen, elektrisch leitfähigen Schicht ist daher vorteilhafterweise so gewählt, daß das beschichtete Lampengefäß in dem Wellenlängenbereich von 550 nm bis 700 nm eine möglichst hohe Transparenz, das heißt, einen Transmissionskoeffizienten von größer als 0,8 besitzt. Die Dicke der lichtdurchlässigen, elektrisch leitfähigen Schicht muß nämlich einerseits hinreichend groß sein, um eine ausreichende elektrische Leitfähigkeit zu gewährleisten, und andererseits aber auch hinreichend klein sein, um noch eine ausreichende Lichtdurchlässigkeit aufzuweisen. Gemäß des besonders bevorzugten Ausführungsbeispiels der Erfindung ist die Entladungslampe als Neongasentladungslampe ausgebildet. Diese Lampe erzeugt vorwiegend orangefarbenes oder rotes Licht. Sie kann daher vorteilhafterweise als Bestandteil eines Beleuchtungssystems in einem Kraftfahrzeug, zur Erzeugung des Blinklichtes oder des Schluß- und/oder Bremslichtes, verwendet werden.The translucent, electrically conductive layer is advantageously as ITO layer, that is, formed as an indium tin oxide layer. In which particularly preferred embodiment of the invention a discharge lamp that is predominantly yellow, orange, or red Light emitted. The layer thickness of the translucent, electrically conductive Layer is therefore advantageously chosen so that the coated lamp vessel as far as possible in the wavelength range from 550 nm to 700 nm high transparency, that is, a transmission coefficient of greater than 0.8. The thickness of the translucent, electrically conductive layer on the one hand, it must be sufficiently large to have sufficient electrical power To ensure conductivity, but also sufficient be small in order to still have sufficient light transmission. According to the particularly preferred embodiment of the invention the discharge lamp is designed as a neon gas discharge lamp. That lamp mainly produces orange or red light. It can therefore advantageously as part of a lighting system in a motor vehicle, to generate the flashing light or the tail light and / or brake light, be used.
Das erfindungsgemäße Beleuchtungssystem weist eine Entladungslampe und ein Betriebsgerät für die Entladungslampe auf, wobei die Entladungslampe mindestens ein den Entladungsraum der Lampe umschließendes Lampengefäß besitzt, das mit einer lichtdurchlässigen, elektrisch leitfähigen Schicht versehen ist, wobei diese Schicht sich zumindest über den Entladungsraum erstreckt und an ein vorgegebenes elektrisches Bezugspotential, das vorteilhafterweise das schaltungsinterne Massepotential des Betriebsgerätes oder das Erdpotential ist, angeschlossen ist. Die vorgenannten Merkmale des erfindungsgemäßen Beleuchtungssystems gewährleisten seine zufriedenstellende elektromagnetische Verträglichkeit, da die von dem Entladungsplasma der Entladungslampe emittierte mittelfrequente elektromagnetische Strahlung um mehr als 50 Dezibel geschwächt wird. Vorteilhafterweise weist das erfindungsgemäße Beleuchtungssystem zusätzlich einen Reflektor auf. Um einen hohen Lichtreflexionsgrad zu erzielen, besitzt der Reflektor des erfindungsgemäßen Beleuchtungssystems vorteilhafterweise eine metallische oder eine metallisierte Reflexionsfläche auf. Der Reflektor übt daher ebenfalls eine abschirmende Wirkung auf die von dem Entladungsplasma in der Entladungslampe erzeugte elektromagnetische Strahlung aus. Es hat sich als besonders vorteilhaft erwiesen, den Reflektor und eventuell metallisierte Teile des Leuchtengehäuses zur Verbesserung der Abschirmung ebenfalls an das vorgegebene elektrische Bezugspotential anzuschließen. Dadurch kann die Schichtdicke der lichtdurchlässigen, elektrisch leitfähigen Schicht auf den dem Reflektor bzw. dem Innenraum der Leuchte zugewandten Wandbereichen des mindestens einen Lampengefäßes vorteilhafterweise geringer ausgeführt werden, als auf den vom Reflektor abgewandten Wandbereichen des mindestens einen Lampengefäßes, und auf diese Weise die Lichtdurchlässigkeit der dem Reflektor zugewandten Wandbereiche erhöht und die Effizienz des erfindungsgemäßen Beleuchtungssystems verbessert werden. Das mindestens eine Lampengefäß besitzt vorteilhafterweise ein zylindrisches Gefäßteil und zwei in Richtung des Reflektors abgewinkelte Enden. Dadurch wird gewährleistet, daß die dunklen Enden der Entladungslampe, die mit den elektrischen Anschlüssen der Lampe ausgestattet sind, nicht sichtbar sind. Alternativ können die dunklen Enden der Entladungslampe auch in abgeschattete Bereiche der Beleuchtungsvorrichtung verlegt werden.The lighting system according to the invention has a discharge lamp and an operating device for the discharge lamp, wherein the discharge lamp at least one enclosing the discharge space of the lamp Lamp vessel has that with a translucent, electrically conductive Layer is provided, wherein this layer is at least over the discharge space extends and to a predetermined electrical reference potential, which advantageously the circuit-internal ground potential of the operating device or the earth potential is connected. The aforementioned features of the lighting system according to the invention ensure its satisfactory electromagnetic compatibility because of the discharge plasma the discharge lamp emitted medium-frequency electromagnetic Radiation is weakened by more than 50 decibels. Advantageously the lighting system according to the invention additionally has a reflector on. In order to achieve a high degree of light reflection, the reflector has of the lighting system according to the invention advantageously a metallic or a metallized reflection surface. The reflector practices therefore also a shielding effect on that of the discharge plasma electromagnetic radiation generated in the discharge lamp. It has proven particularly advantageous to use the reflector and possibly Metallized parts of the luminaire housing to improve the shielding also to be connected to the specified electrical reference potential. This allows the layer thickness of the translucent, electrically conductive Layer on the reflector or the interior of the lamp facing Wall areas of the at least one lamp vessel advantageously run less than on those facing away from the reflector Wall areas of the at least one lamp vessel, and on this Way the light transmission of the wall areas facing the reflector increases and the efficiency of the lighting system according to the invention be improved. The at least one lamp vessel advantageously has one cylindrical vessel part and two angled in the direction of the reflector End up. This ensures that the dark ends of the Discharge lamp equipped with the electrical connections of the lamp are not visible. Alternatively, the dark ends of the Discharge lamp also in shadowed areas of the lighting device be relocated.
Bei dem besonders bevorzugten Ausführungsbeispiel des erfindungsgemäßen Beleuchtungssystems beträgt die Schichtdicke der lichtdurchlässigen, elektrisch leitfähigen Schicht auf den vom Reflektor abgewandten Wandbereichen des mindestens einen Lampengefäßes 300 nm. Dadurch weisen diese Wandbereiche eine besonders hohe Transparenz für Licht mit einer Wellenlänge von 600 nm auf. Dieses Beleuchtungssystem eignet sich daher vorteilhafterweise zur Verwendung in einem Kraftfahrzeug zur Erzeugung des Schlußlichtes oder/und des Bremslichtes.In the particularly preferred embodiment of the invention Lighting system is the layer thickness of the translucent, electrically conductive layer on the wall areas facing away from the reflector of the at least one lamp vessel 300 nm Wall areas a particularly high transparency for light with a wavelength from 600 nm. This lighting system is therefore advantageously suitable for use in a motor vehicle to generate the Tail light and / or the brake light.
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:
Figur 1- einen Längsschnitt durch eine Entladungslampe gemäß des bevorzugten Ausführungsbeispiels der Erfindung in schematischer Darstellung
Figur 2- einen Querschnitt durch die Entladungslampe gemäß
Figur 1 mit einem Reflektor in schematischer Darstellung Figur 3- Transmissionskurven für das unbeschichtete und das beschichtete Lampengefäß
- Figure 1
- a longitudinal section through a discharge lamp according to the preferred embodiment of the invention in a schematic representation
- Figure 2
- a cross section through the discharge lamp of Figure 1 with a reflector in a schematic representation
- Figure 3
- Transmission curves for the uncoated and the coated lamp vessel
Bei dem in Figur 1 abgebildeten bevorzugten Ausführungsbeispiel der Erfindung
handelt es sich um eine Neongasentladungslampe. Diese Lampe
besitzt ein rohrförmiges, gläsernes Entladungsgefäß 1 mit zwei rechtwinklig,
in gleicher Richtung abgewinkelten Enden 1a. In die Enden 1a ist jeweils ein
Elektrodensystem 2 der Neongasentladungslampe gasdicht eingeschmolzen.
Die aus dem Einschmelzungsbereich 1aa herausragenden Stromzuführungen
2a bilden die elektrischen Anschlüsse der Lampe. Zwischen seinen abgewinkelten
Enden 1a besitzt das Entladungsgefäß 1 eine kreiszylindrische Gestalt.
Der Außendurchmesser des Entladungsgefäßes 1 beträgt ungefähr 5 mm.
Der Abstand zwischen den Stromzuführungen 2a, der ungefähr der Länge
des kreiszylindrischen Entladungsgefäßteils 1b entspricht, beträgt 308 mm.
Die abgewinkelten Enden 1a besitzen eine Länge von 36,2 mm.In the preferred embodiment of the invention shown in FIG. 1
it is a neon gas discharge lamp. That lamp
has a tubular,
Die äußere Oberfläche des Entladungsgefäßes 1 ist mit einer sogenannten
ITO-Schicht 4 ― das ist eine Indium-Zinn-Oxid-Schicht ― versehen, die sich
über den gesamten Entladungsraum 3 der Neongasentladungslampe, bis zu
den Einschmelzungsbereichen 1aa der Elektroden 2 erstreckt. Der Entladungsraum
3 wird hier durch die entladungsseitigen Enden der beiden
Elektroden 2 und den Innendurchmesser des Entladungsgefäßes 1 definiert.
Die ITO-Schicht 4 besitzt, gemessen mittels der Methode der Vierpunktmessung,
einen spezifischen Oberflächenwiderstand von 14 Ohm pro Square. Sie
besteht aus 90 Gewichtsprozent Indiumoxid In2O3 und 10 Gewichtsprozent
Zinnoxid SnO2. Die Transmissionskurve 1 zeigt die Lichtdurchlässigkeit des
Entladungsgefäßes 1 mit ITO-Schicht 4 in Abhängigkeit von der Wellenlänge,
während die Transmissionskurve 2 die Lichtdurchlässigkeit des Entladungsgefäßes
ohne ITO-Schicht zeigt. Die Schichtdicke der ITO-Schicht ist
derart abgestimmt, daß die Transmissionskurve 1 bei einer Wellenlänge von
600 nm, also für rotes Licht, das vorwiegend von der Neongasentladungslampe
emittiert wird, ein Transmissionsmaximum aufweist. Die Schichtdicke
der ITO-Schicht 4 beträgt daher ca. 300 nm. Im Wellenlängenbereich von
550 nm bis 700 nm beträgt die Transmission des beschichteten Lampengefäßes
1 mehr als 80% des auf die Innenwand des Entladungsgefäßes 1 auftreffenden
Lichtes, das heißt der Transmissionskoeffizient ist in diesem Wellenlängenbereich
größer als 0,8. Bei der Wellenlänge von 600 nm wird ein
Transmissionskoeffizient von mehr als 0,85 erreicht.The outer surface of the
Die oben beschriebene Neongasentladungslampe ist vorzugsweise Bestandteil
eines Beleuchtungssystems, insbesondere einer Kraftfahrzeugheckleuchte
und dient zur Erzeugung eines Schlußlichtes und/oder eines Bremslichtes.
Diese Heckleuchte umfaßt neben der Neongasentladungslampe zusätzlich
ein elektronisches Betriebsgerät für die Neongasentladungslampe und einen
rinnenförmigen Reflektor 5, der zwischen den abgewinkelten Enden 1a der
Lampe angeordnet ist. Der kreiszylindrische Gefäßteil 1b des Entladungsgefäßes
1 ist annähernd in der optischen Achse des Reflektors 5 angeordnet.
Die der Lampe zugewandte Reflexionsfläche 5a des Reflektors 5 ist metallisch
oder metallisiert und mit dem schaltungsinternen Massepotential des
Betriebsgerätes verbunden. Die ITO-Schicht 4 des Entladungsgefäßes 1 ist
ebenfalls an das schaltungsinterne Massepotential des Betriebgerätes angeschlossen.
Die Beleuchtungsvorrichtung weist auch ein Gehäuse (nicht abgebildet)
auf, dessen metallisierte Teile ebenfalls an das schaltungsinterne Massepotential
angeschlossen sind, so daß eine sternförmige Kontaktierung in
einem gemeinsamen Massepunkt erfolgt. Auf den dem Reflektor 5 zugewandten
Wandbereichen 10a des Entladungsgefäßes 1 besitzt die ITO-Schicht
4 eine geringere Schichtdicke als auf den von dem Reflektor 5 abgewandten
Wandbereichen 10b des Entladungsgefäßes 1. Die Schichtdicke der
ITO-Schicht 4 beträgt auf den von dem Reflektor 5 abgewandten Wandbereichen
10b einen Wert von ca. 300 nm, während sie auf den dem Reflektor 5
zugewandten Wandbereichen 10a ca. 100 nm mißt. The neon gas discharge lamp described above is preferably a component
a lighting system, in particular a motor vehicle rear light
and serves to generate a tail light and / or a brake light.
In addition to the neon gas discharge lamp, this rear light also includes
an electronic control gear for the neon gas discharge lamp and one
trough-shaped
Die Erfindung beschränkt sich nicht auf das oben näher erläuterte Ausführungsbeispiel.
Beispielsweise muß sich die ITO-Schicht 4 nicht über das gesamte
Entladungsgefäß 1 erstrecken. Es genügt diejenigen Wandbereiche
des Entladungsgefäßes 1, die den Raum zwischen den entladungsseitigen
Enden der beiden Elektroden 2 umschließen, mit der ITO-Schicht 4 zu versehen.The invention is not limited to the exemplary embodiment explained in more detail above.
For example,
Die Erfindung kann auch auf andere Typen von Entladungslampen, beispielsweise auf Niederdruckentladungslampen oder auf Hochdruckentladungslampen und auf Beleuchtungssysteme mit einer Hochdruckentladungslampe wie zum Beispiel einen mit einer Hochdruckentladungslampe ausgerüsteten Kraftfahrzeugscheinwerfer angewendet werden. Insbesondere handelt es sich in diesem Fall um eine einseitig gesockelte Hochdruckentladungslampe, die ein von einem gläsernen Außenkolben umschlossenes Entladungsgefäß besitzt, wobei der Außenkolben mit einer lichtdurchlässigen, elektrisch leitfähigen Schicht ― vorzugsweise einer ITO-Schicht ― versehen ist, die sich über den gesamten Entladungsraum der Lampe erstreckt. Die Hochdruckentladungslampe ist vorzugsweise Bestandteil eines Kraftfahrzeugscheinwerfers und wird an einem elektronischen Betriebsgerät betrieben. Die lichtdurchlässige, elektrisch leitfähige Schicht auf dem Außenkolben der Hochdruckentladungslampe ist mit dem schaltungsinternen Massepotential des Betriebsgerätes verbunden.The invention can also be applied to other types of discharge lamps, for example on low-pressure discharge lamps or on high-pressure discharge lamps and on lighting systems with a high-pressure discharge lamp such as one with a high pressure discharge lamp equipped automotive headlights can be applied. In particular in this case it is a single-sided high-pressure discharge lamp, which is a discharge vessel enclosed by a glass outer bulb has, the outer bulb with a translucent, electrically conductive layer - preferably an ITO layer which extends over the entire discharge space of the lamp. The High-pressure discharge lamp is preferably part of a motor vehicle headlight and is operated on an electronic control gear. The translucent, electrically conductive layer on the outer bulb The high-pressure discharge lamp is connected to the internal ground potential connected to the control gear.
Anstelle einer ITO-Schicht können auch lichtdurchlässige, elektrisch leitende Schichten, die aus einem anderen Material, beispielsweise aus Zinnoxid SnO2 oder aus mit Fluor bzw. Antimon dotierten Zinnoxid SnO2:F bzw. SnO2:Sb bestehen, eingesetzt werden.Instead of an ITO layer, it is also possible to use translucent, electrically conductive layers which consist of another material, for example of tin oxide SnO 2 or of tin oxide SnO 2 : F or SnO 2 : Sb doped with fluorine or antimony.
Claims (16)
dadurch gekennzeichnet, daß das mindestens eine Lampengefäß (1) eine lichtdurchlässige, elektrisch leitfähige Schicht (4) aufweist, die sich zumindest über den gesamten Entladungsraum (3) der Entladungslampe erstreckt.Discharge lamp with at least one translucent lamp vessel (1) which surrounds the discharge space (3) of the discharge lamp, a lamp and electrical connections (2a) for supplying voltage to the discharge lamp,
characterized in that the at least one lamp vessel (1) has a translucent, electrically conductive layer (4) which extends at least over the entire discharge space (3) of the discharge lamp.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19844548A DE19844548A1 (en) | 1998-09-29 | 1998-09-29 | Discharge lamp and lighting system with a discharge lamp |
| DE19844548 | 1998-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0991107A1 true EP0991107A1 (en) | 2000-04-05 |
| EP0991107B1 EP0991107B1 (en) | 2004-01-28 |
Family
ID=7882589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99112643A Expired - Lifetime EP0991107B1 (en) | 1998-09-29 | 1999-07-02 | Lighting device comprising a discharge lamp |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6153982A (en) |
| EP (1) | EP0991107B1 (en) |
| JP (1) | JP2000106010A (en) |
| KR (1) | KR20000034948A (en) |
| AT (1) | ATE258717T1 (en) |
| CA (1) | CA2281191A1 (en) |
| DE (2) | DE19844548A1 (en) |
| HU (1) | HUP9903289A3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004083900A2 (en) * | 2003-03-18 | 2004-09-30 | Philips Intellectual Property & Standards Gmbh | Gas discharge lamp |
| US7705540B2 (en) | 2004-09-07 | 2010-04-27 | Osram Gesellschaft Mit Beschraenkter Haftung | High-pressure discharge lamp having electrically conductive transparent coating |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6404132B1 (en) | 2001-03-27 | 2002-06-11 | Liteglow Industries, Inc. | Neon cruising lights for use with motor vehicle headlights |
| US6593706B1 (en) * | 2001-10-02 | 2003-07-15 | The Regents Of The University Of California | High pressure neon arc lamp |
| BE1015302A3 (en) * | 2003-01-10 | 2005-01-11 | Glaverbel | Glass with electronic components. |
| KR20050115917A (en) * | 2003-03-18 | 2005-12-08 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | Gas discharge lamp |
| DE102005007658A1 (en) * | 2005-02-19 | 2006-08-24 | Robert Bosch Gmbh | Burner for a gas discharge lamp and method for producing such a burner |
| DE102005007678A1 (en) * | 2005-02-19 | 2006-09-07 | Hella Kgaa Hueck & Co. | Electrical gas discharge lighting bulb has a coating of a transparent conductive oxide acting as a preheating layer |
| DE102005007672A1 (en) * | 2005-02-19 | 2006-09-07 | Hella Kgaa Hueck & Co. | Burner for gas-discharge lamp, has discharge container provided with combustion chamber and made of quartz glass tube, such that outer surface of discharge container is free from grooving and cross-sectional cracks |
| 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 |
| DE102005007657A1 (en) * | 2005-02-19 | 2006-08-24 | Hella Kgaa Hueck & Co. | Gas discharge lamp especially for motor vehicle headlights has electrodes for arc formation in gas filled hollow space and surrounding layer of transparent electrically conductive oxide with electromagnetic screening |
| DE102005007660A1 (en) * | 2005-02-19 | 2006-08-24 | Hella Kgaa Hueck & Co. | Ignition torch, for gas discharge lamp, especially for motor vehicle headlights, has chamber with electrodes giving arc in operation and wall material to limit outside temperature during running |
| DE102006007218A1 (en) | 2006-02-15 | 2007-08-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | High pressure discharge lamp |
| US20070247850A1 (en) * | 2006-03-28 | 2007-10-25 | Kenall Manufacturing Co. | Lighting Fixture with EMI/RFI Shield |
| US7772749B2 (en) * | 2007-05-01 | 2010-08-10 | General Electric Company | Wavelength filtering coating for high temperature lamps |
| TWI417474B (en) * | 2010-05-31 | 2013-12-01 | 明志科技大學 | A bulb and a lighting fixture capable of reducing electromagnetic radiation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4568859A (en) * | 1982-12-29 | 1986-02-04 | U.S. Philips Corporation | Discharge lamp with interference shielding |
| EP0334208A2 (en) | 1988-03-22 | 1989-09-27 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Compact reflector lamp |
| US5003214A (en) * | 1986-12-19 | 1991-03-26 | Gte Products Corporation | Metal halide lamp having reflective coating on the arc tube |
| JPH0443547A (en) * | 1990-06-08 | 1992-02-13 | Toshiba Lighting & Technol Corp | Automotive lighting equipment and discharge lamps |
| EP0512622A1 (en) * | 1991-05-08 | 1992-11-11 | Koninklijke Philips Electronics N.V. | Electrodeless low-pressure mercury vapour discharge lamp |
| US5420481A (en) | 1993-09-27 | 1995-05-30 | Smiths Industries | Fluorescent lamp with wide range of luminous intensities |
| EP0660375A2 (en) * | 1993-12-22 | 1995-06-28 | Ge Lighting Limited | Electrodeless fluorescent lamp |
| EP0673057A2 (en) * | 1994-03-18 | 1995-09-20 | Ge Lighting Limited | Electrodeless fluorescent lamp |
| EP0767340A2 (en) * | 1995-10-02 | 1997-04-09 | Osram Sylvania Inc. | Discharge lamp having light-transmissive conductive coating for RF containment and heating, and lamp assembly containing the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3932783A (en) * | 1969-01-02 | 1976-01-13 | Sylvania Electric Products Inc. | Fluorescent lamp containing indium oxide |
| NL7610170A (en) * | 1976-09-14 | 1978-03-16 | Philips Nv | LOW-PRESSURE MERCURY DISCHARGE LAMP. |
| JPS559309A (en) * | 1978-07-03 | 1980-01-23 | Tokyo Shibaura Electric Co | Light illuminating bulb |
| US4227113A (en) * | 1978-10-18 | 1980-10-07 | Duro-Test Corporation | Incandescent electric lamp with partial light transmitting coating |
| EP0102139A3 (en) * | 1982-08-19 | 1984-11-07 | Osram- Gec Limited | Cathodoluminescent light sources and electric lighting arrangements including such sources |
| CA2017471C (en) * | 1989-07-19 | 2000-10-24 | Matthew Eric Krisl | Optical interference coatings and lamps using same |
| US5287258A (en) * | 1990-04-04 | 1994-02-15 | Robert Bosch Gmbh | Headlamp for motor vehicles |
| WO1997040519A1 (en) * | 1996-04-19 | 1997-10-30 | Philips Electronics N.V. | Electrodeless low-pressure discharge lamp |
| JP3635849B2 (en) * | 1997-04-07 | 2005-04-06 | ウシオ電機株式会社 | Noble gas discharge lamp |
-
1998
- 1998-09-29 DE DE19844548A patent/DE19844548A1/en not_active Withdrawn
-
1999
- 1999-07-02 EP EP99112643A patent/EP0991107B1/en not_active Expired - Lifetime
- 1999-07-02 AT AT99112643T patent/ATE258717T1/en not_active IP Right Cessation
- 1999-07-02 DE DE59908400T patent/DE59908400D1/en not_active Expired - Lifetime
- 1999-08-23 US US09/379,427 patent/US6153982A/en not_active Expired - Fee Related
- 1999-08-26 CA CA002281191A patent/CA2281191A1/en not_active Abandoned
- 1999-09-28 KR KR1019990041466A patent/KR20000034948A/en not_active Application Discontinuation
- 1999-09-28 JP JP11274777A patent/JP2000106010A/en active Pending
- 1999-09-28 HU HU9903289A patent/HUP9903289A3/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4568859A (en) * | 1982-12-29 | 1986-02-04 | U.S. Philips Corporation | Discharge lamp with interference shielding |
| US5003214A (en) * | 1986-12-19 | 1991-03-26 | Gte Products Corporation | Metal halide lamp having reflective coating on the arc tube |
| EP0334208A2 (en) | 1988-03-22 | 1989-09-27 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Compact reflector lamp |
| JPH0443547A (en) * | 1990-06-08 | 1992-02-13 | Toshiba Lighting & Technol Corp | Automotive lighting equipment and discharge lamps |
| EP0512622A1 (en) * | 1991-05-08 | 1992-11-11 | Koninklijke Philips Electronics N.V. | Electrodeless low-pressure mercury vapour discharge lamp |
| US5420481A (en) | 1993-09-27 | 1995-05-30 | Smiths Industries | Fluorescent lamp with wide range of luminous intensities |
| EP0660375A2 (en) * | 1993-12-22 | 1995-06-28 | Ge Lighting Limited | Electrodeless fluorescent lamp |
| EP0673057A2 (en) * | 1994-03-18 | 1995-09-20 | Ge Lighting Limited | Electrodeless fluorescent lamp |
| EP0767340A2 (en) * | 1995-10-02 | 1997-04-09 | Osram Sylvania Inc. | Discharge lamp having light-transmissive conductive coating for RF containment and heating, and lamp assembly containing the same |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 016, no. 230 (E - 1208) 27 May 1992 (1992-05-27) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004083900A2 (en) * | 2003-03-18 | 2004-09-30 | Philips Intellectual Property & Standards Gmbh | Gas discharge lamp |
| WO2004083900A3 (en) * | 2003-03-18 | 2004-11-04 | Philips Intellectual Property | Gas discharge lamp |
| US7705540B2 (en) | 2004-09-07 | 2010-04-27 | Osram Gesellschaft Mit Beschraenkter Haftung | High-pressure discharge lamp having electrically conductive transparent coating |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0991107B1 (en) | 2004-01-28 |
| ATE258717T1 (en) | 2004-02-15 |
| HU9903289D0 (en) | 1999-11-29 |
| DE59908400D1 (en) | 2004-03-04 |
| HUP9903289A3 (en) | 2000-05-29 |
| CA2281191A1 (en) | 2000-03-29 |
| HUP9903289A2 (en) | 2000-04-28 |
| US6153982A (en) | 2000-11-28 |
| JP2000106010A (en) | 2000-04-11 |
| KR20000034948A (en) | 2000-06-26 |
| DE19844548A1 (en) | 2000-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0991107B1 (en) | Lighting device comprising a discharge lamp | |
| DE69628986T2 (en) | Lamp arrangement with a discharge lamp, which has a translucent and conductive coating for RF limitation and heating. | |
| DE3607460C2 (en) | Electrodeless low pressure discharge lamp | |
| EP1984936B1 (en) | High-pressure discharge lamp | |
| DE102012018001A1 (en) | Transparent glass pane i.e. windscreen, for use in sensor-pane-unit of e.g. passenger car, has sensor region-collecting conductors electrically conductively connected with transparent, electrical conductive layer of sensor region | |
| EP0922297A1 (en) | Fluorescent lamp | |
| DE19628925B4 (en) | Discharge lamp with a filling that contains deuterium, hydrogen, mercury, a metal halide or noble gas | |
| DE69516091T2 (en) | Luminaire with elastic connecting elements for an accurate and vibration-free mounting of a neon lamp | |
| DE602004010629T2 (en) | GAS DISCHARGE LAMP | |
| DE69603926T2 (en) | LIGHTING UNIT, ELECTRODELESS LOW-PRESSURE DISCHARGE LAMP AND DISCHARGE VESSEL FOR USE IN THE LIGHTING UNIT | |
| DE3513833A1 (en) | FUSE PROTECTION INSERT WITH OPTOELECTRICAL DISPLAY DEVICE | |
| DE602004003171T2 (en) | Slice antenna system for vehicles | |
| DE3038993C2 (en) | Metal vapor discharge lamp | |
| DE69019600T2 (en) | Plasma display device. | |
| DE69926706T2 (en) | NIEDERDRUCKQUECKSILBERDAMPFEENTLADUNGSLAMPE | |
| EP1276137B1 (en) | Dielectric-barrier discharge lamp with starting aid | |
| DE69707620T2 (en) | ELECTRODELESS LOW PRESSURE DISCHARGE TUBE | |
| DE69103133T2 (en) | HIGH FREQUENCY SUPPLIED DISPLAY DEVICE. | |
| DE2739591C2 (en) | Low pressure mercury vapor discharge lamp | |
| DE10236549A1 (en) | Electric light bulb | |
| DE2745666A1 (en) | GLARE-FREE REAR-VIEW MIRROR FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES, AND THE PROCESS FOR ITS MANUFACTURING | |
| EP1055866A2 (en) | Motor vehicle lamp | |
| DE102014206283B3 (en) | Electrical contact connection and method for producing a contact connection | |
| DD264316A5 (en) | ELECTRIC LIGHT BULB FOR MAINS VOLTAGE OPERATION | |
| DE19640666A1 (en) | Discharge lamp esp. for vehicle illumination units with base and filament |
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): BE DE ES FR GB IT NL SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 20000503 |
|
| AKX | Designation fees paid |
Free format text: BE DE ES FR GB IT NL SE |
|
| 17Q | First examination report despatched |
Effective date: 20021125 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RTI1 | Title (correction) |
Free format text: LIGHTING DEVICE COMPRISING A DISCHARGE LAMP |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040128 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;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.SCRIBED TIME-LIMIT Effective date: 20040128 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: 20040128 Ref country code: GB 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: 20040128 Ref country code: FR 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: 20040128 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: 20040128 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: 20040128 |
|
| 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: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 59908400 Country of ref document: DE Date of ref document: 20040304 Kind code of ref document: P |
|
| 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: 20040428 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: 20040428 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: 20040428 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20040509 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| 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: 20040702 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040702 |
|
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20040128 |
|
| 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: 20040731 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| 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 |
Effective date: 20041029 |
|
| EN | Fr: translation not filed | ||
| BERE | Be: lapsed |
Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M. Effective date: 20040731 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| BERE | Be: lapsed |
Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M. Effective date: 20040731 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040628 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59908400 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: 20111130 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59908400 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE Effective date: 20130205 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59908400 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE Effective date: 20130822 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170724 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59908400 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: 20190201 |