EP2341512B1 - Integrated discharge lamp - Google Patents
Integrated discharge lamp Download PDFInfo
- Publication number
- EP2341512B1 EP2341512B1 EP10014656A EP10014656A EP2341512B1 EP 2341512 B1 EP2341512 B1 EP 2341512B1 EP 10014656 A EP10014656 A EP 10014656A EP 10014656 A EP10014656 A EP 10014656A EP 2341512 B1 EP2341512 B1 EP 2341512B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light source
- housing
- control module
- module
- burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/17—Discharge light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Definitions
- the present invention relates to a light source with a gas discharge lamp.
- the light source comprises a control module with a driver circuit, an ignition module for generating a high voltage and a gas-filled burner, in which an arc is ignited and maintained between two electrodes.
- the invention also relates to a lighting device for a motor vehicle with such a light source.
- a light source of the type mentioned is for example from the WO 2004/083900 A1 , of the EP 1 273 848 A1 or the WO 2004/084250 A1 known.
- a noble gas or a gas mixture is contained in a burner, which can also be referred to as a discharge vessel or inner bulb. Between two protruding into the interior of the burner electrodes is a voltage is applied so that an arc is formed between the electrodes, which leads to a light emission, and the arc can be maintained during the operation of the light source.
- a driver circuit of a control module or a control unit of the gas discharge lamp from the battery voltage of 12 V or 24 V generates an intermediate voltage of a few 100 V to over 1000 V, for example. About 1200 V, between two potentials of -700 V and +500 V. issue.
- an ignition module of the gas discharge lamp generates an ignition voltage (high voltage) for the burner, which can be several kilovolts, for example in the range between 10 kV and 25 kV, in particular in the range of 23 kV.
- the ignition voltage is applied to the electrodes.
- the voltage applied to the electrodes can be reduced to an operating voltage (AC) of only a few volts, for example to a voltage of 43 V or 85 V at 400 Hz.
- the operating voltage is supplied by a driver circuit of the control module.
- the ignition voltage is preferably generated by stepping up the operating voltage.
- the control module is arranged separately and spatially separated from the burner.
- the ignition module is integrated in the known light sources either in the control module or arranged directly on the burner and / or a base of the gas discharge lamp.
- the operating voltage generated by the control module is conducted via a shielded line to the burner or to the ignition module and applied to the electrodes.
- the decentralized arrangement of the control module has in the known gas discharge lamps especially thermal reasons.
- the driver circuit formed in the control module comprises a plurality of electronic components which generate a considerable amount of heat during operation of the light source. This can be better dissipated at a distance to the burner, at lower ambient temperatures.
- the ignited and maintained in the interior of the burner arc generated very high temperatures, which are in the range of several 100 ° C and can even reach 1,000 ° C or more. These high temperatures would lead to impairment or even damage to the driver circuit or their electronic components, if the control module would be located in close proximity to the burner.
- a disadvantage of the known light sources is the relatively large space requirement due to the separate and spatially separated from the rest of the light source control module.
- the required shielded connection line between the control module and the remaining light source (burner or ignition module) for additional costs and increased effort during assembly. Due to the transmitted via the connecting line AC signals and the electromagnetic radiation caused thereby, it is necessary that the connecting line is well shielded against electromagnetic radiation. This is done, for example, by a metal mesh or metal-plastic braid surrounding the connecting line. However, this braid must meet a variety of requirements, which leads to relatively high costs for the shielded connection line.
- the mesh must be designed to be flexible so that a relative movement of the burner relative to the light source Control module through the shielded connection line is not or not significantly affected. Otherwise, a reliable movement, in particular a uniform movement, of the light module can not be ensured or it requires particularly strong forces and particularly large and heavy drive units.
- the present invention has the object, a light source comprising a gas discharge lamp compact as possible, small-sized, easy to handle and inexpensive to design.
- control module the ignition module and the burner are mounted on a common carrier system and combined into one unit.
- the control module in the vicinity of the burner namely arranged on a common carrier system of the light source.
- the gas discharge lamp has a lower power and thus also a lower heat development during operation than conventional gas discharge lamps previously used in motor vehicle lighting devices.
- the gas discharge lamp of the light source according to the invention has a reduced by about 20% to 30% compared to conventional gas discharge lamps electrical power.
- the gas discharge lamp of the light source according to the invention has a power of about 25 watts, for example.
- the reduced power results in lower arc temperatures, significantly less waste heat, and the power loss of the control module also decreases.
- the reduced luminous flux due to the reduced power does not necessarily lead to a poorer illumination of the road or other areas in front of the motor vehicle. Rather, it is possible to achieve an illumination comparable to more powerful conventional gas discharge lamps by optimizing the other components of the motor vehicle lighting device equipped with the power-reduced gas discharge lamp.
- the components of the illumination device to be optimized include, for example, a primary optic (for example a reflector), a secondary optic (for example a projection lens), a cover plate of a housing and any other components of the illumination device influencing the light distribution.
- the reduced power of the gas discharge lamp causes the gas discharge lamp to generate significantly less waste heat during operation than conventional gas discharge lamps. Only then is it possible to fasten the control module in the vicinity of the burner to a common carrier system without the control module or its driver circuit or the electronic components being restricted in their function or even being damaged.
- An advantage of the light source according to the invention is that no separate, separate from the rest of the gas discharge lamp control module, for example in the form of a Control unit with its own control unit housing, is present, which must be arranged in the vehicle.
- the control module, ignition module and burner to form a common unit, the connecting lines between the control module and the burner or ignition module.
- the individual modules of the light source namely control module, ignition module and burner, can be manufactured as separate modules and tested individually. In the final manufacturing process, all modules are then mounted in or on the common carrier system. In this way, it would also be possible, for example, to combine different modules to different light sources for different applications and customer requirements, without each requiring a complete redevelopment of a light source. Instead, a new light source can be assembled from proven modules that have already been individually tested. This can significantly reduce development time and costs.
- the carrier system comprises a housing, in particular a metal housing.
- the housing is preferably made of a metal sheet, in particular an aluminum sheet, bent or as a metal die-cast housing, in particular die-cast aluminum, formed.
- the control module and the ignition module are in a common housing of the carrier system arranged.
- the burner would be attached to the housing via the ignition module, with leads or wires connecting the electrodes of the burner to the interior of the housing and the control module or ignition module disposed therein.
- the housing can also fulfill the functions of protection against moisture, dirt and mechanical stress, heat dissipation (cooling or cooling) and EMC shielding.
- the carrier system thus not only serves to attach the control module, ignition module and burner, but at the same time as a housing, heat sink and EMC shielding.
- the housing has means for increasing a heat release to the environment.
- the housing may, for example, be equipped with cooling fins or cooling pins or other elements which increase the surface which can be used for heat dissipation.
- the surface of the housing has a high emissivity of, for example,> 0.7, in particular of> 0.9.
- the emissivity of a body indicates how much radiation it emits in comparison to an ideal heat radiator, a so-called black body.
- emissivities such as a directional spectral emissivity, a hemispherical spectral emissivity, a directional total emissivity, or a hemispherical total emissivity.
- emissivity is understood to mean the total hemispheric emissivity. This is according to the present embodiment above 0.7, in particular above 0.9.
- the emissivity of the housing can by a suitable surface treatment can be improved. To improve the emissivity of the housing, this can be painted with suitable paints, for example.
- the paints should behave in the infrared wavelength range ideally as a "black spotlight", the paints should therefore absorb the heat radiation as completely as possible and release it to the environment.
- Decisive in this embodiment is that the emissivity of the surface of the housing by suitable treatment is greater than the corresponding untreated surface (base material).
- Untreated, aluminum has an emissivity of approx. 0.15.
- an emissivity of approximately 0.7 may already be sufficient, but it is preferably above 0.9.
- modules of the light source in the upper region of the carrier system, which can endure high temperatures without impairment of function or the risk of damage.
- the ignition module or the electrical circuit of the ignition module at the top of the carrier system.
- Modules that can not be subjected to high thermal loads should be mounted as low as possible on the carrier system.
- a plug of the control module or ignition module should be arranged as far down as possible on the carrier system. The plug can also be arranged outside the housing.
- the present invention also includes automotive lighting devices having at least one light source according to the invention.
- the lighting device is preferably as a motor vehicle headlight educated.
- a lighting device for motor vehicles is designated in its entirety by the reference numeral 1.
- the lighting device 1 is formed in the illustrated embodiment as a motor vehicle headlight.
- the lighting device 1 may also be designed as a light or the like.
- the headlight 1 comprises a housing 2, which is preferably made of plastic.
- the headlight housing 2 has a light exit opening, which is closed by a transparent cover 4.
- the cover 4 is made of colorless plastic or glass.
- the disk 4 may be formed as a so-called clear disk without optically effective profiles (for example, prisms). Alternatively, the disc 4 may be provided at least partially with optically effective profiles.
- the light modules 5, 6 are arranged inside the headlight housing 2 movable.
- the light modules 5, 6 are to produce a desired light distribution, such as a low beam, a high beam, a city light, a highway, a motorway light, a fog light, a static or dynamic Kurvenlicht- or any other static and / or or adaptive light distribution formed.
- the light modules 5, 6 generate the desired light function either alone or in combination with each other by the light module 5 of each individual light module; 6 supplied partial light distributions are superimposed to the desired light distribution.
- the light modules 5, 6 can be designed as a reflection module and / or as a projection module. Of course, more or less than the two illustrated light modules 5, 6 may be provided in the headlight housing 2.
- the light module 5, 6 off FIG. 2 is designed as a projection module. It comprises a light source 7 which emits electromagnetic radiation, preferably light visible to the human eye.
- the light module 5, 6 comprises a primary optics 8 in the form of a reflector for bundling the emitted light.
- the light source 7 is of the Rear side of the reflector 8 ago introduced into a receiving opening formed in the apex of the reflector 8 and fixed there, for example, bayonet.
- a lamp base 9 is provided on the light source 7.
- the light emitted by the light source 7 and focused by the reflector 8 light is imaged by a secondary optics 10, which is formed for example as a projection lens, on the roadway in front of the motor vehicle.
- the lens 10 is fixed by means of a lens holder 11 at the front edge of the reflector 8. If the light distribution to be generated by the light module 5, 6 has a horizontal light-dark boundary (for example in the case of a low-beam distribution or a fog light distribution), a diaphragm arrangement 12 is arranged between the primary optics 8 and the secondary optics 10, the upper edge 13 of which is projected from the projection lens 10 as a light-dark boundary Roadway is projected in front of the motor vehicle.
- the course of the upper edge 13 of the diaphragm arrangement 12 can be varied to produce a variable or adaptive light distribution.
- the diaphragm arrangement 12 in its entirety is pivotable about an axis of rotation 15 which is at a distance from an optical axis 14 of the light module 5, 6 and extending transversely thereto. In this way, the diaphragm 12 can be moved out of or out of the beam path, and the light distribution emitted by the light module 5, 6 can be switched between a dimmed light distribution (for example low beam) and a non-dimmed light distribution (for example high beam).
- a dimmed light distribution for example low beam
- a non-dimmed light distribution for example high beam
- the light source used in the light module 5, 6 7 is in detail in FIG. 3 shown.
- the light source 7 comprises a gas discharge lamp and a control module 16 with a driver circuit for generating an intermediate voltage or an operating voltage for the gas discharge lamp, an ignition module 17 for generating a high voltage (ignition voltage) from the intermediate voltage and a gas-filled burner 18.
- the burner 18 is preferably with filled with a noble gas or gas mixture. In the burner 18 protrude two electrodes 19, 20, between which an arc is ignited for the operation of the light source 7 and maintained for the duration of the operation of the light source 7.
- the gas-filled burner 18 (so-called inner glass bulb) is in turn arranged inside a preferably air-filled glass bulb 24 (so-called outer glass bulb).
- Both the burner 18 and the glass bulb 24 are preferably made of a quartz glass.
- the lines 25, 26 are guided through the base 9 in the interior of the housing 21 and there connected to the control module 16 and / or the ignition module 17.
- control module 16, the ignition module 17 and the burner 18 are attached to a common carrier system 21 and combined into one unit.
- the support system 21 in addition to the attachment of the sub-components 16, 17 and the functions of a housing for the electrical circuits of the control module 16 and the ignition module 17 and the function of a heat sink, on the waste heat of the electronic components of the control module 16 and / or the ignition module 17th is delivered to the environment.
- the housing 21 protects the circuits or electronic components of the control module 16 and the ignition module 17 from dirt, moisture and mechanical damage.
- the housing 21 provides an EMC shield so that electromagnetic interference from outside does not affect the circuits or electronic components of the control module 16 and the ignition module 17 and on the other hand, electromagnetic interference of the circuits or electronic components of the control module 16 and the ignition module 17 not on outside circuits and components act.
- the electronic components of the circuits of the control module 16 and the ignition module 17 are arranged on one or more printed circuit boards 22, mechanically fixed and electrically contacted. About formed on the circuit board 22 traces, the two modules 16, 17 with each other and with other components for power supply and / or signal transmission in electrical connection.
- the other components are, for example, a plug or socket element 23, which is formed on the underside of the printed circuit board 22 and protrudes through an opening in the housing 21 to the outside.
- a corresponding socket or plug element in FIG.
- a connecting line via which the light source 7 and the control module 16 and the ignition module 17 with a higher-level control unit, for example, a so-called body controller, as well as for power to a power supply, such as a motor vehicle battery, in communication.
- a higher-level control unit for example, a so-called body controller
- the control module 16 it is possible for the first time to place the control module 16 in the immediate vicinity of the light source To position burner 18 without causing thermal problems or overheating of the electronic components of the control module 16. This is made possible by the fact that the burner 18 has a reduced lamp power compared to conventional gas discharge lamps.
- the high packing density of the light source 7 according to the invention is possible because the reduced power of the light source 7 makes thermal management manageable from an economic point of view.
- the various subcomponents of the light source 7 according to the invention, namely the control module 16, the ignition module 17 and the burner 18, can be manufactured and tested as separate modules. In the final manufacturing process then all required modules are mounted in the common carrier system 21.
- the light source 7 allows a particularly compact construction of a gas discharge lamp. Due to the small size, it is recommended for cooling to increase the proportion of radiated heat energy by appropriate measures. For this purpose, it is possible to carry out the surface of the housing 21 with a particularly high emissivity (for example 0.9).
- the particularly high emissivity can be achieved, for example, by painting the housing 21 with suitable paints. The paints must behave in the infrared range ideally like a "black spotlight".
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die vorliegende Erfindung betrifft eine Lichtquelle mit einer Gasentladungslampe. Die Lichtquelle umfasst ein Steuermodul mit einer Treiberschaltung, ein Zündmodul zur Erzeugung einer Hochspannung sowie einen gasgefüllten Brenner, in dem zwischen zwei Elektroden ein Lichtbogen gezündet und aufrechterhalten wird. Die Erfindung betrifft außerdem eine Beleuchtungseinrichtung für ein Kraftfahrzeug mit einer solchen Lichtquelle.The present invention relates to a light source with a gas discharge lamp. The light source comprises a control module with a driver circuit, an ignition module for generating a high voltage and a gas-filled burner, in which an arc is ignited and maintained between two electrodes. The invention also relates to a lighting device for a motor vehicle with such a light source.
Eine Lichtquelle der eingangs genannten Art ist beispielsweise aus der
Bei den aus dem Stand der Technik bekannten Lichtquellen ist das Steuermodul separat und räumlich getrennt von dem Brenner angeordnet. Das Zündmodul ist bei den bekannten Lichtquellen entweder in das Steuermodul integriert oder unmittelbar am Brenner und/oder einem Sockel der Gasentladungslampe angeordnet. Die von dem Steuermodul generierte Betriebsspannung wird über eine abgeschirmte Leitung zum Brenner beziehungsweise zum Zündmodul geführt und an die Elektroden angelegt. Die dezentrale Anordnung des Steuermoduls hat bei den bekannten Gasentladungslampen vor allem thermische Gründe. So umfasst die in dem Steuermodul ausgebildete Treiberschaltung eine Vielzahl elektronischer Bauelemente, die während des Betriebs der Lichtquelle eine zum Teil erhebliche Wärmemenge erzeugen. Diese kann in einem Abstand zum Brenner, bei niedrigeren Umgebungstemperaturen, besser abgeführt werden. Der im Innenraum des Brenners gezündete und aufrechterhaltene Lichtbogen erzeugt sehr hohe Temperaturen, die im Bereich von mehreren 100 °C liegen und sogar 1.000 °C oder mehr erreichen können. Diese hohen Temperaturen würden zu einer Beeinträchtigung oder gar Beschädigung der Treiberschaltung beziehungsweise deren elektronischen Bauteile führen, wenn das Steuermodul in räumlicher Nähe zum Brenner angeordnet wäre.In the light sources known from the prior art, the control module is arranged separately and spatially separated from the burner. The ignition module is integrated in the known light sources either in the control module or arranged directly on the burner and / or a base of the gas discharge lamp. The operating voltage generated by the control module is conducted via a shielded line to the burner or to the ignition module and applied to the electrodes. The decentralized arrangement of the control module has in the known gas discharge lamps especially thermal reasons. Thus, the driver circuit formed in the control module comprises a plurality of electronic components which generate a considerable amount of heat during operation of the light source. This can be better dissipated at a distance to the burner, at lower ambient temperatures. The ignited and maintained in the interior of the burner arc generated very high temperatures, which are in the range of several 100 ° C and can even reach 1,000 ° C or more. These high temperatures would lead to impairment or even damage to the driver circuit or their electronic components, if the control module would be located in close proximity to the burner.
Nachteilig bei den bekannten Lichtquellen ist jedoch der relativ große Platzbedarf aufgrund des separaten und räumlich getrennt zur restlichen Lichtquelle angeordneten Steuermoduls. Außerdem sorgt die erforderliche geschirmte Verbindungsleitung zwischen dem Steuermodul und der restlichen Lichtquelle (Brenner oder Zündmodul) für zusätzliche Kosten und erhöhten Aufwand bei der Montage. Aufgrund der über die Verbindungsleitung übertragenen Wechselspannungssignale und die dadurch hervorgerufene elektromagnetische Strahlung ist es erforderlich, dass die Verbindungsleitung gut gegen elektromagnetische Strahlung abgeschirmt wird. Dies erfolgt beispielsweise durch ein die Verbindungsleitung umgebendes Metallgeflecht oder Metall-Kunststoff-Geflecht. Dieses Geflecht muss jedoch einer Vielzahl von Anforderungen genügen, was zu relativ hohen Kosten für die geschirmte Verbindungsleitung führt. Wenn die Lichtquelle beispielsweise Teil eines bewegbaren Lichtmoduls ist, muss das Geflecht so flexibel ausgebildet sein, dass eine Relativbewegung des Brenners relativ zum Steuermodul durch die geschirmte Verbindungsleitung nicht oder nicht wesentlich beeinträchtigt wird. Ansonsten kann eine zuverlässige Bewegung, insbesondere eine gleichförmige Bewegung, des Lichtmoduls nicht sichergestellt werden oder es sind dazu besonders starke Kräfte und besonders große und schwere Antriebeinheiten erforderlich.A disadvantage of the known light sources, however, is the relatively large space requirement due to the separate and spatially separated from the rest of the light source control module. In addition, the required shielded connection line between the control module and the remaining light source (burner or ignition module) for additional costs and increased effort during assembly. Due to the transmitted via the connecting line AC signals and the electromagnetic radiation caused thereby, it is necessary that the connecting line is well shielded against electromagnetic radiation. This is done, for example, by a metal mesh or metal-plastic braid surrounding the connecting line. However, this braid must meet a variety of requirements, which leads to relatively high costs for the shielded connection line. If, for example, the light source is part of a movable light module, the mesh must be designed to be flexible so that a relative movement of the burner relative to the light source Control module through the shielded connection line is not or not significantly affected. Otherwise, a reliable movement, in particular a uniform movement, of the light module can not be ensured or it requires particularly strong forces and particularly large and heavy drive units.
Ausgehend von dem beschriebenen Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Lichtquelle umfassend eine Gasentladungslampe möglichst kompakt, kleinbauend, einfach handhabbar und kostengünstig auszugestalten.Based on the described prior art, the present invention has the object, a light source comprising a gas discharge lamp compact as possible, small-sized, easy to handle and inexpensive to design.
Zur Lösung dieser Aufgabe wird ausgehend von der Lichtquelle der eingangs genannten Art vorgeschlagen, dass das Steuermodul, das Zündmodul und der Brenner an einem gemeinsamen Trägersystem befestigt und zu einer Einheit zusammengefasst sind.To solve this problem is proposed starting from the light source of the type mentioned that the control module, the ignition module and the burner are mounted on a common carrier system and combined into one unit.
Gemäß der vorliegenden Erfindung wird also entgegen der bisherigen Praxis das Steuermodul in der Nähe des Brenners, nämlich an einem gemeinsamen Trägersystem der Lichtquelle angeordnet. Dies ist dadurch möglich, dass die Gasentladungslampe eine geringere Leistung und damit auch eine geringere Wärmeentwicklung während des Betriebs als herkömmliche in Kraftfahrzeugbeleuchtungseinrichtungen bisher eingesetzte Gasentladungslampen hat. Vorzugsweise hat die Gasentladungslampe der erfindungsgemäßen Lichtquelle eine um etwa 20% bis 30% gegenüber herkömmlichen Gasentladungslampen reduzierte elektrische Leistung. Wenn man beispielsweise davon ausgeht, dass herkömmliche Gasentladungslampen eine Leistung von 35 Watt haben, hat die Gasentladungslampe der erfindungsgemäßen Lichtquelle beispielsweise eine Leistung von etwa 25 Watt. Die verringerte Leistung führt zu geringeren Temperaturen des Lichtbogens, deutlich weniger Abwärme, und die Verlustleistung des Steuermoduls verringert sich ebenfalls.According to the present invention, therefore, contrary to the previous practice, the control module in the vicinity of the burner, namely arranged on a common carrier system of the light source. This is possible because the gas discharge lamp has a lower power and thus also a lower heat development during operation than conventional gas discharge lamps previously used in motor vehicle lighting devices. Preferably, the gas discharge lamp of the light source according to the invention has a reduced by about 20% to 30% compared to conventional gas discharge lamps electrical power. For example, assuming that conventional gas discharge lamps have a power of 35 watts, the gas discharge lamp of the light source according to the invention has a power of about 25 watts, for example. The reduced power results in lower arc temperatures, significantly less waste heat, and the power loss of the control module also decreases.
Der verringerte Lichtstrom aufgrund der reduzierten Leistung führt nicht zwangsläufig zu einer schlechteren Ausleuchtung der Fahrbahn oder anderer Bereiche vor dem Kraftfahrzeug. Vielmehr ist es möglich, durch eine Optimierung der übrigen Komponenten der mit der leistungsverringerten Gasentladungslampe ausgestatteten Kraftfahrzeugbeleuchtungseinrichtung eine mit leistungsstärkeren herkömmlichen Gasentladungslampen vergleichbare Ausleuchtung zu erzielen. Die zu optimierenden Komponenten der Beleuchtungseinrichtung umfassen beispielsweise eine Primäroptik (zum Beispiel einen Reflektor), eine Sekundäroptik (zum Beispiel eine Projektionslinse), eine Abdeckscheibe eines Gehäuses sowie beliebig andere die Lichtverteilung beeinflussende Komponenten der Beleuchtungseinrichtung.The reduced luminous flux due to the reduced power does not necessarily lead to a poorer illumination of the road or other areas in front of the motor vehicle. Rather, it is possible to achieve an illumination comparable to more powerful conventional gas discharge lamps by optimizing the other components of the motor vehicle lighting device equipped with the power-reduced gas discharge lamp. The components of the illumination device to be optimized include, for example, a primary optic (for example a reflector), a secondary optic (for example a projection lens), a cover plate of a housing and any other components of the illumination device influencing the light distribution.
Ganz entscheidend für die vorliegende Erfindung ist die Tatsache, dass die reduzierte Leistung der Gasentladungslampe dazu führt, dass die Gasentladungslampe während des Betriebs deutlich weniger Abwärme erzeugt als herkömmliche Gasentladungslampen. Erst dadurch ist es möglich, das Steuermodul in der Nähe des Brenners an einem gemeinsamen Trägersystem zu befestigen, ohne dass das Steuermodul bzw. dessen Treiberschaltung oder die elektronischen Bauteile in ihrer Funktion eingeschränkt werden oder gar Schaden nehmen.Quite decisive for the present invention is the fact that the reduced power of the gas discharge lamp causes the gas discharge lamp to generate significantly less waste heat during operation than conventional gas discharge lamps. Only then is it possible to fasten the control module in the vicinity of the burner to a common carrier system without the control module or its driver circuit or the electronic components being restricted in their function or even being damaged.
Vorteilhaft bei der erfindungsgemäßen Lichtquelle ist es, dass kein separates, von der übrigen Gasentladungslampe getrenntes Steuermodul, beispielsweise in Form eines Steuergeräts mit eigenem Steuergerätegehäuse, vorhanden ist, das im Kraftfahrzeug angeordnet werden muss. Außerdem entfallen durch das Zusammenfassen von Steuermodul, Zündmodul und Brenner zu einer gemeinsamen Einheit die Verbindungsleitungen zwischen Steuermodul und Brenner beziehungsweise Zündmodul. Schließlich ist es möglich, die Lichtquelle als eine einzelne Einheit gesondert Handzuhaben, wodurch der Transport und der Einbau der Lichtquelle in einer erfindungsgemäßen Kraftfahrzeugbeleuchtungsvorrichtung wesentlich erleichtert wird.An advantage of the light source according to the invention is that no separate, separate from the rest of the gas discharge lamp control module, for example in the form of a Control unit with its own control unit housing, is present, which must be arranged in the vehicle. In addition, by combining the control module, ignition module and burner to form a common unit, the connecting lines between the control module and the burner or ignition module. Finally, it is possible to handle the light source separately as a single unit, thereby substantially facilitating the transportation and installation of the light source in a motor vehicle lighting device according to the invention.
Die einzelnen Module der Lichtquelle, nämlich Steuermodul, Zündmodul und Brenner, können als separate Module gefertigt und einzeln getestet werden. Im abschließenden Fertigungsprozess werden dann alle Module in bzw. an dem gemeinsamen Trägersystem montiert. Auf diese Weise wäre es beispielsweise auch möglich, unterschiedliche Module zu verschiedenen Lichtquellen für verschiedene Einsatzzwecke und Kundenwünsche zu kombinieren, ohne dass jeweils eine komplette Neuentwicklung einer Lichtquelle erforderlich wäre. Stattdessen kann eine neue Lichtquelle aus bewährten, bereits einzeln getesteten Modulen zusammengesetzt werden. Dadurch können die Entwicklungszeit und -kosten deutlich reduziert werden.The individual modules of the light source, namely control module, ignition module and burner, can be manufactured as separate modules and tested individually. In the final manufacturing process, all modules are then mounted in or on the common carrier system. In this way, it would also be possible, for example, to combine different modules to different light sources for different applications and customer requirements, without each requiring a complete redevelopment of a light source. Instead, a new light source can be assembled from proven modules that have already been individually tested. This can significantly reduce development time and costs.
Gemäß einer vorteilhaften Weiterbildung der vorliegenden Erfindung wird vorgeschlagen, dass das Trägersystem ein Gehäuse, insbesondere ein Metallgehäuse, umfasst. Das Gehäuse ist vorzugsweise aus einem Metallblech, insbesondere einem Aluminiumblech, gebogen oder als ein Metalldruckgussgehäuse, insbesondere aus Aluminiumdruckguss, ausgebildet. Gemäß dieser Ausgestaltung der Erfindung sind das Steuermodul und das Zündmodul in einem gemeinsamen Gehäuse des Trägersystems angeordnet. Der Brenner wäre über das Zündmodul an dem Gehäuse befestigt, wobei Leitungen oder Drähte die Elektroden des Brenners mit dem Inneren des Gehäuses und dem darin angeordneten Steuermodul beziehungsweise dem Zündmodul verbinden. Das Gehäuse kann neben der Aufgabe der Befestigung der Teilkomponenten der Lichtquelle auch die Funktionen Schutz vor Feuchtigkeit, Schmutz und mechanischer Beanspruchung, Wärmeableitung (Entwärmung bzw. Kühlung) sowie EMV-Abschirmung erfüllen. Gemäß dieser Weiterbildung dient das Trägersystem also nicht nur zur Befestigung von Steuermodul, Zündmodul und Brenner, sondern gleichzeitig als Gehäuse, Kühlkörper und EMV-Abschirmung.According to an advantageous development of the present invention, it is proposed that the carrier system comprises a housing, in particular a metal housing. The housing is preferably made of a metal sheet, in particular an aluminum sheet, bent or as a metal die-cast housing, in particular die-cast aluminum, formed. According to this embodiment of the invention, the control module and the ignition module are in a common housing of the carrier system arranged. The burner would be attached to the housing via the ignition module, with leads or wires connecting the electrodes of the burner to the interior of the housing and the control module or ignition module disposed therein. In addition to the task of fastening the subcomponents of the light source, the housing can also fulfill the functions of protection against moisture, dirt and mechanical stress, heat dissipation (cooling or cooling) and EMC shielding. According to this development, the carrier system thus not only serves to attach the control module, ignition module and burner, but at the same time as a housing, heat sink and EMC shielding.
Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung wird vorgeschlagen, dass das Gehäuse Mittel zur Erhöhung einer Wärmeabgabe an die Umgebung aufweist. Zu diesem Zweck kann das Gehäuse beispielsweise mit Kühlrippen oder Kühlstiften oder anderen Elementen, welche die zur Wärmeabgabe nutzbare Oberfläche vergrößern, ausgestattet sein. Vorteilhafterweise hat die Oberfläche des Gehäuses einen hohen Emissionsgrad von zum Beispiel > 0,7, insbesondere von > 0,9. Der Emissionsgrad eines Körpers gibt an, wie viel Strahlung er im Vergleich zu einem idealen Wärmestrahler, einem sogenannten schwarzen Körper, abgibt. Es gibt verschiedene Emissionsgrade, beispielsweise einen gerichteten spektralen Emissionsgrad, einen hemisphärischen spektralen Emissionsgrad, einen gerichteten Gesamt-Emissionsgrad, oder einen hemisphärischen Gesamt-Emissionsgrad. Gemäß der vorliegenden Erfindung wird unter Emissionsgrad der hemisphärische Gesamt-Emissionsgrad verstanden. Dieser liegt gemäß der vorliegenden Ausführungsform oberhalb von 0,7, insbesondere oberhalb von 0,9. Der Emissionsgrad des Gehäuses kann durch eine geeignete Oberflächenbehandlung verbessert werden. Um den Emissionsgrad des Gehäuses zu verbessern, kann dieses zum Beispiel mit geeigneten Lacken lackiert werden. Die Lacke sollten sich im Infrarot-Wellenlängenbereich idealer Weise wie ein "schwarzer Strahler" verhalten, die Lacke sollten also die Wärmestrahlung möglichst vollständig absorbieren und an die Umgebung abgeben. Entscheidend bei dieser Ausführungsform ist, dass der Emissionsgrad der Oberfläche des Gehäuses durch geeignete Behandlung größer wird als die entsprechende unbehandelte Oberfläche (Basismaterial). Unbehandelt hat Aluminium einen Emissionsgrad von ca. 0,15. Je nach Auslegung des Gehäuses und der darin angeordneten Wärme abgebenden Komponenten kann bereits ein Emissionsgrad von ca. 0,7 genügen, vorzugsweise ist er jedoch oberhalb von 0,9.According to a preferred embodiment of the present invention, it is proposed that the housing has means for increasing a heat release to the environment. For this purpose, the housing may, for example, be equipped with cooling fins or cooling pins or other elements which increase the surface which can be used for heat dissipation. Advantageously, the surface of the housing has a high emissivity of, for example,> 0.7, in particular of> 0.9. The emissivity of a body indicates how much radiation it emits in comparison to an ideal heat radiator, a so-called black body. There are different emissivities, such as a directional spectral emissivity, a hemispherical spectral emissivity, a directional total emissivity, or a hemispherical total emissivity. According to the present invention, emissivity is understood to mean the total hemispheric emissivity. This is according to the present embodiment above 0.7, in particular above 0.9. The emissivity of the housing can by a suitable surface treatment can be improved. To improve the emissivity of the housing, this can be painted with suitable paints, for example. The paints should behave in the infrared wavelength range ideally as a "black spotlight", the paints should therefore absorb the heat radiation as completely as possible and release it to the environment. Decisive in this embodiment is that the emissivity of the surface of the housing by suitable treatment is greater than the corresponding untreated surface (base material). Untreated, aluminum has an emissivity of approx. 0.15. Depending on the design of the housing and the heat-emitting components arranged therein, an emissivity of approximately 0.7 may already be sufficient, but it is preferably above 0.9.
Aus thermischer Sicht ist es besonders vorteilhaft, solche Module der Lichtquelle im oberen Bereich des Trägersystems anzuordnen, die ohne Funktionsbeeinträchtigung oder die Gefahr einer Beschädigung hohe Temperaturen ertragen können. So wäre es beispielsweise denkbar, das Zündmodul beziehungsweise die elektrische Schaltung des Zündmoduls oben am Trägersystem anzuordnen. Module, die thermisch nicht so hoch beansprucht werden können, sollten möglichst weit unten am Trägersystem befestigt sein. So sollte beispielsweise ein Stecker des Steuermoduls beziehungsweise Zündmoduls möglichst weit unten am Trägersystem angeordnet sein. Der Stecker kann auch außerhalb des Gehäuses angeordnet sein.From a thermal point of view, it is particularly advantageous to arrange such modules of the light source in the upper region of the carrier system, which can endure high temperatures without impairment of function or the risk of damage. For example, it would be conceivable to arrange the ignition module or the electrical circuit of the ignition module at the top of the carrier system. Modules that can not be subjected to high thermal loads should be mounted as low as possible on the carrier system. For example, a plug of the control module or ignition module should be arranged as far down as possible on the carrier system. The plug can also be arranged outside the housing.
Die vorliegende Erfindung umfasst auch Kraftfahrzeugbeleuchtungseinrichtungen mit mindestens einer erfindungsgemäßen Lichtquelle. Die Beleuchtungseinrichtung ist vorzugsweise als ein Kraftfahrzeugscheinwerfer ausgebildet.The present invention also includes automotive lighting devices having at least one light source according to the invention. The lighting device is preferably as a motor vehicle headlight educated.
Ein bevorzugtes Ausführungsbeispiel der vorliegenden Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Dabei haben die nachfolgend beschriebenen Komponenten und Bauteile die angegebenen Merkmale und Vorteile jeweils auch einzeln, das heißt auch ohne die übrigen Komponenten und Bauteile der Erfindung, ohne dass dies im Einzelfall jedes Mal erwähnt ist. Es zeigen:
Figur 1- eine erfindungsgemäße Beleuchtungseinrichtung für ein Kraftfahrzeug mit einer erfindungsgemäßen Lichtquelle gemäß einer bevorzugten Ausführungsform;
Figur 2- ein Lichtmodul der Beleuchtungseinrichtung aus
Figur 1 ; und Figur 3- eine erfindungsgemäße Lichtquelle des Lichtmoduls aus
Figur 2 bzw. der Beleuchtungseinrichtung ausFigur 1 gemäß einer bevorzugten Ausführungsform.
- FIG. 1
- an illumination device according to the invention for a motor vehicle with a light source according to the invention according to a preferred embodiment;
- FIG. 2
- a light module of the illumination device
FIG. 1 ; and - FIG. 3
- a light source according to the invention of the light module
FIG. 2 or the lighting deviceFIG. 1 according to a preferred embodiment.
In
Die Abdeckscheibe 4 ist aus farblosem Kunststoff oder Glas gefertigt. Die Scheibe 4 kann ohne optisch wirksame Profile (zum Beispiel Prismen) als sogenannte klare Scheibe ausgebildet sein. Alternativ kann die Scheibe 4 zumindest bereichsweise mit optisch wirksamen Profilen versehen sein.In
The
Im Inneren des Scheinwerfergehäuses 2 sind in dem dargestellten Ausführungsbeispiel zwei Lichtmodule 5, 6 angeordnet. Die Lichtmodule 5, 6 sind fest oder relativ zu dem Gehäuse 2 bewegbar angeordnet. Die Lichtmodule 5, 6 sind zur Erzeugung einer gewünschten Lichtverteilung, beispielsweise einer Abblendlicht-, einer Fernlicht-, einer Stadtlicht-, einer Landstraßenlicht-, einer Autobahnlicht-, einer Nebellicht-, einer statischen oder dynamischen Kurvenlicht- oder einer beliebig anderen statischen und/oder adaptiven Lichtverteilung ausgebildet. Die Lichtmodule 5, 6 erzeugen die gewünschte Lichtfunktion entweder alleine oder in Kombination miteinander, indem die von jedem einzelnen Lichtmodul 5; 6 gelieferten Teillichtverteilungen zu der gewünschten Lichtverteilung überlagert werden. Die Lichtmodule 5, 6 können als Reflexionsmodul und/oder als Projektionsmodul ausgebildet sein. Selbstverständlich können in dem Scheinwerfergehäuse 2 auch mehr oder weniger als die zwei dargestellten Lichtmodule 5, 6 vorgesehen sein.Inside the
In
Das von der Lichtquelle 7 ausgesandte und vom Reflektor 8 gebündelte Licht wird von einer Sekundäroptik 10, die beispielsweise als eine Projektionslinse ausgebildet ist, auf der Fahrbahn vor dem Kraftfahrzeug abgebildet. Die Linse 10 ist mittels eines Linsenhalters 11 am vorderen Rand des Reflektors 8 befestigt. Falls die von dem Lichtmodul 5, 6 zu erzeugende Lichtverteilung eine horizontale Helldunkelgrenze aufweist (beispielsweise bei einer Abblendlichtverteilung oder einer Nebellichtverteilung), ist zwischen der Primäroptik 8 und der Sekundäroptik 10 eine Blendenanordnung 12 angeordnet, deren Oberkante 13 von der Projektionslinse 10 als Helldunkelgrenze auf die Fahrbahn vor das Kraftfahrzeug projiziert wird. Der Verlauf der Oberkante 13 der Blendenanordnung 12 kann zur Erzeugung einer variablen beziehungsweise adaptiven Lichtverteilung variiert werden. Ebenso ist es denkbar, dass die Blendenanordnung 12 in ihrer Gesamtheit um eine in einem Abstand zu einer optischen Achse 14 des Lichtmoduls 5, 6 und quer dazu verlaufende Drehachse 15 verschwenkbar ist. Auf diese Weise kann die Blende 12 in den Strahlengang hinaus oder aus diesem herausbewegt werden, und die von dem Lichtmodul 5, 6 ausgesandte Lichtverteilung kann zwischen einer abgeblendeten Lichtverteilung (zum Beispiel Abblendlicht) und einer nicht abgeblendeten Lichtverteilung (zum Beispiel Fernlicht) umgeschaltet werden.The light emitted by the light source 7 and focused by the reflector 8 light is imaged by a
Die in dem Lichtmodul 5, 6 zum Einsatz kommende Lichtquelle 7 ist im Detail in
Bei der erfindungsgemäßen Lichtquelle 7 sind das Steuermodul 16, das Zündmodul 17 und der Brenner 18 an einem gemeinsamen Trägersystem 21 befestigt und zu einer Einheit zusammengefasst. Das Trägersystem 21 kann neben der Befestigung der Teilkomponenten 16, 17 auch die Funktionen eines Gehäuses für die elektrischen Schaltungen des Steuermoduls 16 und des Zündmoduls 17 sowie die Funktion eines Kühlkörpers, über den die Abwärme der elektronischen Bauelemente des Steuermoduls 16 und/oder des Zündmoduls 17 an die Umgebung abgegeben wird. Das Gehäuse 21 schützt die Schaltungen bzw. elektronischen Bauteile des Steuermoduls 16 und des Zündmoduls 17 vor Schmutz, Feuchtigkeit und mechanischer Beschädigung. Außerdem bietet das Gehäuse 21 eine EMV-Abschirmung, damit elektromagnetische Störungen von außerhalb nicht auf die Schaltungen bzw. elektronischen Bauteile des Steuermoduls 16 und des Zündmoduls 17 wirken und andererseits elektromagnetische Störungen der Schaltungen bzw. elektronischen Bauteile des Steuermoduls 16 und des Zündmoduls 17 nicht auf außerhalb befindliche Schaltungen und Bauteile wirken.In the light source 7 according to the invention, the
Die elektronischen Bauteile der Schaltungen des Steuermoduls 16 und des Zündmoduls 17 sind auf einer oder mehreren Leiterplatten 22 angeordnet, mechanisch befestigt und elektrisch kontaktiert. Über auf der Leiterplatte 22 ausgebildete Leiterbahnen stehen die beiden Module 16, 17 miteinander sowie mit anderen Komponenten zur Energieversorgung und/oder Signalübertragung in elektrischer Verbindung. Bei den übrigen Komponenten handelt es sich beispielsweise um ein Stecker- oder Buchsenelement 23, das an der Unterseite der Leiterplatte 22 ausgebildet ist und durch eine Öffnung im Gehäuse 21 nach außen ragt. An das Stecker- oder Buchsenelement 23 kann ein entsprechendes Buchsen- beziehungsweise Steckerelement (in
Bei der erfindungsgemäßen Lichtquelle 7 ist es erstmals möglich, das Steuermodul 16 in unmittelbarer Nähe zu dem Brenner 18 zu positionieren, ohne dass es zu thermischen Problemen beziehungsweise einer Überhitzung der elektronischen Komponenten des Steuermoduls 16 kommt. Dies wird dadurch ermöglicht, dass der Brenner 18 eine gegenüber herkömmlichen Gasentladungslampen verringerte Lampenleistung hat. Die hohe Packungsdichte der erfindungsgemäßen Lichtquelle 7 ist möglich, da die reduzierte Leistung der Lichtquelle 7 das thermische Management auch unter wirtschaftlichen Gesichtspunkten beherrschbar macht. Die verschiedenen Teilkomponenten der erfindungsgemäßen Lichtquelle 7, nämlich das Steuermodul 16, das Zündmodul 17 und der Brenner 18, können als separate Module gefertigt und getestet werden. Im abschließenden Fertigungsprozess werden dann alle erforderlichen Module in dem gemeinsamen Trägersystem 21 montiert. Aus thermischer Sicht ist es vorteilhaft, Module, die hohe Temperaturen ertragen können, wie beispielsweise das Zündmodul 17, oben im Trägersystem 21 zu montieren. Module, die thermisch nicht so hoch beanspruchbar sind, wie beispielsweise das Steuermodul 16 oder das Stecker-/Buchsenelement 23, werden unten im Trägersystem 21 montiert. Die erfindungsgemäße Lichtquelle 7 erlaubt einen besonders kompakten Aufbau einer Gasentladungslampe. Aufgrund der kleinen Bauform ist es zur Kühlung empfehlenswert, den Anteil der abgestrahlten Wärmeenergie durch geeignete Maßnahmen zu erhöhen. Hierzu ist es möglich, die Oberfläche des Gehäuses 21 mit einem besonders hohen Emissionsgrad (zum Beispiel 0,9) auszuführen. Der besonders hohe Emissionsgrad kann zum Beispiel durch Lackieren des Gehäuses 21 mit geeigneten Lacken erreicht werden. Die Lacke müssen sich im Infrarot-Bereicht idealer Weise wie ein "schwarzer Strahler" verhalten.In the case of the light source 7 according to the invention, it is possible for the first time to place the
Claims (8)
- a light source (7) with a gas discharge lamp, including- a control module (16) with a driver circuit;- an ignition module (17) for producing a high voltage; and- a gas-filled burner (18), in which an electric arc is ignited and maintained between two electrodes (19, 20),wherein the control module (16), the ignition module (17) and the burner (18) are attached to a mutual support system (21) and combined into a unit,
characterized in that the light source (7) has a lamp base (9), which is embodied such that via the lamp base (9), the light source (7) can be bayonet-mounted in a receptacle opening embodied on a back side of a reflector (8). - The light source (7) as set forth in claim 1, wherein the support system includes a housing, in particular a metal housing.
- The light source (7) as set forth in claim 2, wherein the housing has means for increasing emission of heat to the surrounding area.
- The light source (7) as set forth in claim 2 or 3, wherein the surface of the housing has an emission ratio of greater than 0.7, in particular greater than 0.9.
- The light source (7) as set forth in one of claims 1-4, wherein the surface of the housing is painted.
- The light source (7) as set forth in one of claims 1-5, wherein in an operating position of the light source, the ignition module is arranged above the control module and/or the burner in the support system.
- Lighting equipment (1) for a motor vehicle, including at least one light source (7) as set forth in one of claims 1-6.
- Lighting equipment (1) as set forth in claim 7, wherein the lighting equipment (1) is embodied as a motor-vehicle headlight.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009060778 | 2009-12-22 | ||
DE102010019679A DE102010019679A1 (en) | 2009-12-22 | 2010-05-07 | Light source with a gas discharge lamp and lighting device for a motor vehicle with such a light source |
Publications (2)
Publication Number | Publication Date |
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EP2341512A1 EP2341512A1 (en) | 2011-07-06 |
EP2341512B1 true EP2341512B1 (en) | 2013-03-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10014656A Not-in-force EP2341512B1 (en) | 2009-12-22 | 2010-11-16 | Integrated discharge lamp |
Country Status (4)
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US (1) | US9431204B2 (en) |
EP (1) | EP2341512B1 (en) |
CN (1) | CN102102839B (en) |
DE (1) | DE102010019679A1 (en) |
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CH278968A (en) | 1949-06-20 | 1951-11-15 | Issaiewitch Rebikoff Dimitri | Watertight housing for flash discharge lamp. |
US5073845A (en) * | 1989-04-10 | 1991-12-17 | Janice Industries, Inc. | Fluorescent retrofit light fixture |
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EP0838081A2 (en) * | 1996-05-09 | 1998-04-29 | Koninklijke Philips Electronics N.V. | High-pressure discharge lamp |
JP3632183B2 (en) * | 1997-01-28 | 2005-03-23 | 東洋電装株式会社 | Discharge lamp unit |
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JP4496514B2 (en) * | 2001-07-06 | 2010-07-07 | 株式会社デンソー | Discharge lamp equipment |
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US6819036B2 (en) * | 2002-05-28 | 2004-11-16 | Eastman Kodak Company | OLED lighting apparatus |
KR20050111770A (en) | 2003-03-18 | 2005-11-28 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | Gas discharge lamp |
CN100538990C (en) | 2003-03-18 | 2009-09-09 | 皇家飞利浦电子股份有限公司 | Gaseous discharge lamp |
US20060133079A1 (en) * | 2003-03-31 | 2006-06-22 | Michael Callahan | Lighting systems and components thereof |
WO2005075883A1 (en) * | 2004-01-07 | 2005-08-18 | Philips Intellectual Property & Standards Gmbh | Vehicle headlight and lamp |
US20050259419A1 (en) * | 2004-05-22 | 2005-11-24 | Ruben Sandoval | Replacement lighting fixture using multiple florescent bulbs |
EP1843087B1 (en) * | 2005-01-25 | 2013-01-02 | Panasonic Corporation | Electronic ballast and illuminating device |
US20100328466A1 (en) * | 2006-11-01 | 2010-12-30 | Videolarm, Inc. | Infrared illuminator with variable beam angle |
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JP2009129675A (en) * | 2007-11-22 | 2009-06-11 | Koito Mfg Co Ltd | Discharge lamp for vehicle |
DE102008036194B4 (en) * | 2008-08-02 | 2016-10-20 | Automotive Lighting Reutlingen Gmbh | Light module for a lighting device for a motor vehicle |
US20100079055A1 (en) * | 2008-09-30 | 2010-04-01 | General Electric Company | Providing an improved thermal path to electronics by overmolding in a lighting source |
US8653727B2 (en) * | 2008-11-07 | 2014-02-18 | General Electric Compan | HID lighting assembly capable of instant on/off cycle operation |
CN102227786B (en) * | 2008-11-28 | 2013-09-04 | 欧司朗股份有限公司 | Integrated gas discharge lamp and ignition transformer for integrated gas discharge lamp |
EP2351466B1 (en) * | 2008-11-28 | 2013-01-02 | Osram Ag | Integrated gas discharge lamp with an ignition electronics integrated into the base for generating asymmetrical ignition pulses |
DE102008062675B4 (en) | 2008-12-17 | 2010-12-09 | Osram Gesellschaft mit beschränkter Haftung | Electric lamp with integrated electronics |
EP2405464A4 (en) * | 2009-03-06 | 2014-09-17 | Harison Toshiba Lighting Corp | Vehicle discharge lamp, vehicle discharge lamp device, lighting circuit combined type vehicle discharge lamp device, and lighting circuit |
-
2010
- 2010-05-07 DE DE102010019679A patent/DE102010019679A1/en not_active Ceased
- 2010-11-16 EP EP10014656A patent/EP2341512B1/en not_active Not-in-force
- 2010-12-21 CN CN201010614728.5A patent/CN102102839B/en not_active Expired - Fee Related
- 2010-12-22 US US12/975,993 patent/US9431204B2/en active Active
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US9431204B2 (en) | 2016-08-30 |
EP2341512A1 (en) | 2011-07-06 |
US20110148299A1 (en) | 2011-06-23 |
CN102102839A (en) | 2011-06-22 |
DE102010019679A1 (en) | 2011-06-30 |
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