EP2179217B1 - Lighting apparatus - Google Patents

Lighting apparatus Download PDF

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Publication number
EP2179217B1
EP2179217B1 EP08785463.4A EP08785463A EP2179217B1 EP 2179217 B1 EP2179217 B1 EP 2179217B1 EP 08785463 A EP08785463 A EP 08785463A EP 2179217 B1 EP2179217 B1 EP 2179217B1
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EP
European Patent Office
Prior art keywords
lighting apparatus
housing
reflector
electrically conductive
electromagnetic radiation
Prior art date
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Active
Application number
EP08785463.4A
Other languages
German (de)
French (fr)
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EP2179217A1 (en
Inventor
Ralph Vollmer
Thomas Reiners
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Osram GmbH
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Osram GmbH
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Classifications

    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lighting device with electromagnetic radiation emitting components, in particular using light emitting diodes (LEDs), as well as a vehicle lighting.
  • LEDs light emitting diodes
  • the switched-mode power supply When using a switched-mode power supply to drive an LED, the switched-mode power supply typically emits high-frequency electromagnetic radiation in the range of more than 100 kHz, which can lead to EMC problems with other electronic components. This is a problem, especially in the automotive sector, where a large number of electronic components are gathered in the smallest of spaces.
  • switching power supplies are usually operated in an independent, completely shielded housing. This is elaborate and voluminous and heavy.
  • US 5,006,763 discloses a lighting device with an electrically conductive housing, in the interior of which at least one electrodeless HID lamp is arranged, and with an electrically conductive cover, wherein the cover and the housing are electrically connected to each other, wherein the cover comprises an optical element.
  • the lighting device has an at least partially electrically conductive housing, in the interior of which at least a light source, in particular LED, and at least one electromagnetic radiation emitting circuit component for operating the at least one light source are arranged. Furthermore, the lighting device has an electrically conductive cover for covering at least part of the circuit components, wherein the cover and the housing are electrically connected to each other.
  • the cover and the usually grounded housing thereby form a Faraday cage which shields electromagnetic radiation.
  • the interior of the Faraday cage forms a shielded receiving space for receiving the circuit components.
  • the housing only needs to be electrically conductive insofar as it can form the shielded receiving space.
  • the housing may have an open side through which light emitted by the at least one light source is emitted to the outside.
  • the light source accommodating housing also for accommodating the radiating components can be dispensed with a separate, complete housing for shielding the radiating components. This results in compact dimensions and weight and cost savings.
  • the board on which the radiating components are mounted need not be carried out particularly. It is the use of a single-sided board with a minimum number of layers possible, which for example, a cost savings over using multi-layer, double-sided boards with ground plate allows, which could possibly also be used for shielding.
  • the lighting device is particularly well suited for shielding components whose electromagnetic radiation has a frequency of about 100 KHz or more.
  • the cover comprises an optical element for the beam guidance of the light emitted by the at least one light source in the form of a reflector, wherein the light source is guided through the central opening of the reflector.
  • the reflector preferably has a metallization, for. B. on a non-conductive basic form.
  • the reflector is made of metal, for. B. in the deep drawing process.
  • the reflector is preferably supported electrically conductive on the housing, for. B. without further fasteners.
  • the reflector is preferably connected to the housing by means of an electrically conductive adhesive.
  • the reflector is preferably connected by means of an electrically conductive mechanical connecting element with the housing, for. B. a metal clip.
  • the optical element preferably has a light-transmitting, electrically conductive coating, wherein the coating is particularly preferably electrically connected to the housing.
  • the coating is electrically connected to the housing by means of an electrically conductive adhesive connected is.
  • any other suitable electrically conductive compound may be used, e.g. B. a solder joint.
  • the cover comprises a light-transmitting, non-jet-forming closing element, in particular a cover disk.
  • the terminating element has a light-transmitting, electrically conductive coating which is electrically connected to the housing, in particular if the coating is electrically connected to the housing by means of an electrically conductive adhesive.
  • Preferred is a lighting device in which the housing is made of metal.
  • a lighting device may be preferred in which the housing is made of conductive, in particular metallized, plastic.
  • a lighting device in which the housing is formed as a heat sink, for. B. by providing cooling fins, but also without cooling fins.
  • a lighting device in which the at least one electromagnetic radiation-emitting circuit component is connected to at least one electronic filter element for reducing electromagnetic radiation of electrical supply lines is preferred.
  • Such a lighting device in a vehicle, for. B. as a headlight, turn signal, tail light, brake light, side light, low beam, and so on.
  • the at least one LED may be a single LED or comprise multiple LEDs.
  • the multiple LEDs can be arranged in groups, so-called LED clusters.
  • the LEDs can be monochrome or different colors.
  • the LED cluster can have a plurality of differently colored LEDs, preferably suitable for white additive color mixing, for. B. the type RGB, RRGB, RGGB, etc.
  • the LEDs can spectrally pure or mixed radiate. Also includes LEDs that emit IR or UV light. Also included are LEDs with wavelength-converting material, e.g. B. based on phosphorus, z. B. to convert from blue to yellow light.
  • FIG. 1 shows an inventive lighting device 1 with an electrically conductive, about an optical axis O rotationally symmetrical housing 2, the interior 3 has a single-sided opening 4.
  • a one-sided populated, non-shielding board 5 is mounted, which is equipped on one side with an LED 6 and components 7 of a switching power supply for driving the LED 6 on its upper side.
  • the components 7 are fed by supply lines, not shown, which are led through the housing 2.
  • an electrically conductive reflector 8 is placed, which has a central opening (without reference numeral), through which the LED 6 is guided.
  • the reflector 8 covers the components 7 of the switched-mode power supply and thereby provides, together with the housing 2, a receiving space 9 for these components 7.
  • the reflector 8 and the housing 2 are electrically connected to one another by an electrically conductive adhesive which is located at the interface 10 between reflector 8 and housing 2 is located.
  • a Faraday cage is formed which prevents electromagnetic radiation from running out of or into the receiving space 9.
  • the reflector 8 is made of metal, optionally with protective layers, and is produced by thermoforming.
  • the housing is not rotationally symmetrical, but elongated, in which case FIG. 1 the longitudinal axis is perpendicular to the page plane.
  • This case is particularly suitable for juxtaposing multiple LEDs, which have a common reflector, z. B. to build an elongated light, z. B. a high-mounted brake light.
  • the reflector may have a suitably connected to the housing, in particular large-scale metallization, for. B. applied to a plastic body. This metallization can then also be used for light reflection
  • the reflector to the housing may possibly already its mechanical support on the housing, ie without adhesive connection sufficient.
  • the ground connection can be given for example by a mechanical tensioning device made of metal.
  • FIG. 2 shows a lighting device 11, which now differs from that of FIG. 1 instead of a reflector of a projection lens 12 served as (secondary) optics, which covers the opening 4 and a transparent, electrically conductive coating 13 has.
  • the coating 13 is connected by an electrically conductive adhesive 14 to the housing, whereby now the EMC shielding or formation of the receiving space 15 by the housing 2 and the lens 12 and its coating 13 takes place.
  • the coating 13 may comprise, for example, InO: Sn, ZnO: Al or carbon nanotubes.
  • the electrically conductive coating 13 may be applied to the inside or outside of the lens 12.
  • a primary optics 16 for beam shaping of the light emitted by the LED 6 is arranged between the LED 6 and the lens 12.
  • the housing need not be rotationally symmetrical, but may for example also be elongated, especially when using multiple LEDs.
  • FIG. 3 shows a lighting device 17, in which now in contrast to the embodiment of FIG. 2 instead of the lens a translucent lens 18 is present without significant visual effect.
  • the cover plate 18 also has a transparent, electrically conductive coating 19, which in this example is connected to the housing by an electrically conductive adhesive 20, as a result of which the EMC shield or formation of the receiving space 21 through the housing 2 and the cover plate 18 or the coating 19 takes place.
  • the coating 19 may, for example InO: Sn, ZnO: include AI or carbon nanotubes.
  • the electrically conductive coating 19 may be applied to the inside or outside of the lens 18 without significant optical effect.
  • the present invention is not limited to the present embodiments.
  • the shape of the interior may be different, z. B. not square in cross-section, but arbitrarily shaped.
  • the housing can also be designed as a heat sink and can be z. B. Identify cooling fins.
  • the housing can also consist of metallized or metal-reinforced plastic or another suitable electrically conductive material or composite material.
  • no single LED needs to be used as the light source, but it is also possible, for example, to use LED clusters of a plurality of differently colored LEDs whose colors are mixed together in an additive manner.
  • the invention is not limited to LEDs, but may include other suitable light sources that require radiating elements to drive them, e.g. B. laser diodes.
  • radiant elements can be accommodated, which are not needed to drive the LEDs, but for other purposes.
  • the invention is not limited to an automotive application, but may include any suitable lighting application.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Led Device Packages (AREA)

Description

Die Erfindung betrifft eine Beleuchtungsvorrichtung mit elektromagnetische Strahlung aussendenden Komponenten, insbesondere unter Verwendung von Leuchtdioden (LEDs), sowie eine Fahrzeugbeleuchtung.The invention relates to a lighting device with electromagnetic radiation emitting components, in particular using light emitting diodes (LEDs), as well as a vehicle lighting.

Bei einer Verwendung eines Schaltnetzteils zum Betreiben einer LED sendet das Schaltnetzteil typischerweise eine hochfrequente elektromagnetische Strahlung im Bereich von über 100 KHz aus und kann dadurch zu EMV-Problemen bei anderen elektronischen Komponenten führen. Dies ist insbesondere im Automobilbereich ein Problem, wo eine Vielzahl elektronischer Komponenten auf engstem Raum versammelt ist.When using a switched-mode power supply to drive an LED, the switched-mode power supply typically emits high-frequency electromagnetic radiation in the range of more than 100 kHz, which can lead to EMC problems with other electronic components. This is a problem, especially in the automotive sector, where a large number of electronic components are gathered in the smallest of spaces.

Zur Reduzierung der vom Schaltnetzteil ausgehenden EMV-Beeinflussung, insbesondere in Fahrzeugen, werden, neben einer Filterung der Aus- und Eingangsleitungen, Schaltnetzteile üblicherweise in einem eigenständigen, vollständig geschirmten Gehäuse betrieben. Dies ist aufwendig und voluminös und schwer.In order to reduce the EMI influence emanating from the switched-mode power supply, in particular in vehicles, in addition to filtering the output and input lines, switching power supplies are usually operated in an independent, completely shielded housing. This is elaborate and voluminous and heavy.

US 5,006,763 offenbart eine Beleuchtungsvorrichtung mit einem elektrisch leitfähigen Gehäuse, in dessen Innenraum mindestens eine elektrodenlose HID-Lampe angeordnet ist, und mit einer elektrisch leitfähigen Abdeckung, wobei die Abdeckung und das Gehäuse elektrisch miteinander verbunden sind, wobei die Abdeckung ein optisches Element umfasst. US 5,006,763 discloses a lighting device with an electrically conductive housing, in the interior of which at least one electrodeless HID lamp is arranged, and with an electrically conductive cover, wherein the cover and the housing are electrically connected to each other, wherein the cover comprises an optical element.

Es ist die Aufgabe der vorliegenden Erfindung, eine Möglichkeit zur kompakten, gewichts- und kostensparenden EMV-Schirmung von Schaltnetzteilen zu schaffen, insbesondere für Leuchtdioden insbesondere in Fahrzeugbau, speziell für Fahrzeugscheinwerfer.It is the object of the present invention to provide a way to compact, weight and cost-saving EMC shielding of switching power supplies, especially for light-emitting diodes, especially in vehicle, especially for vehicle headlights.

Diese Aufgabe wird mittels einer Beleuchtungsvorrichtung nach Anspruch 1 und einer Fahrzeugleuchte nach Anspruch 14 gelöst. Vorteilhafte Ausgestaltungen sind insbesondere den Unteransprüchen entnehmbar.This object is achieved by means of a lighting device according to claim 1 and a vehicle lamp according to claim 14. Advantageous embodiments are in particular the dependent claims.

Die Beleuchtungsvorrichtung weist ein zumindest teilweise elektrisch leitfähiges Gehäuse auf, in dessen Innenraum mindestens eine Lichtquelle, insbesondere LED, und mindestens eine elektromagnetische Strahlung aussendende Schaltungskomponente zum Betreiben der mindestens einen Lichtquelle angeordnet sind. Weiterhin weist die Beleuchtungsvorrichtung eine elektrisch leitfähige Abdeckung zum Abdecken zumindest eines Teils der Schaltungskomponenten auf, wobei die Abdeckung und das Gehäuse elektrisch miteinander verbunden sind.The lighting device has an at least partially electrically conductive housing, in the interior of which at least a light source, in particular LED, and at least one electromagnetic radiation emitting circuit component for operating the at least one light source are arranged. Furthermore, the lighting device has an electrically conductive cover for covering at least part of the circuit components, wherein the cover and the housing are electrically connected to each other.

Die Abdeckung und das, üblicherweise geerdete, Gehäuse bilden dadurch einen Faradayschen Käfig, der elektromagnetische Strahlung abschirmt. Der Innenraum des Faradayschen Käfigs bildet einen geschirmten Aufnahmeraum zur Aufnahme der Schaltungskomponenten. Das Gehäuse braucht nur insoweit elektrisch leitfähig zu sein, als dass es den geschirmten Aufnahmeraum bilden kann.The cover and the usually grounded housing thereby form a Faraday cage which shields electromagnetic radiation. The interior of the Faraday cage forms a shielded receiving space for receiving the circuit components. The housing only needs to be electrically conductive insofar as it can form the shielded receiving space.

Typischerweise kann das Gehäuse eine offene Seite aufweisen, durch welche von der mindestens einen Lichtquelle emittiertes Licht nach Außen abgestrahlt wird.Typically, the housing may have an open side through which light emitted by the at least one light source is emitted to the outside.

Durch die Verwendung des die Lichtquelle aufnehmenden Gehäuses auch zur Unterbringung der abstrahlenden Komponenten kann auf ein gesondertes, vollständiges Gehäuse zur Schirmung der abstrahlenden Komponenten verzichtet werden. Dadurch ergeben sich kompakte Abmessungen sowie eine Gewichts- und Kostenersparnis.By using the light source accommodating housing also for accommodating the radiating components can be dispensed with a separate, complete housing for shielding the radiating components. This results in compact dimensions and weight and cost savings.

Zudem braucht auch die Platine, auf der die abstrahlenden Komponenten montiert sind, nicht besonders ausgeführt zu werden. Es ist die Verwendung einer einseitigen Platine mit minimaler Anzahl von Lagen möglich, was beispielsweise eine Kostenersparnis gegenüber einer Verwendung mehrlagiger, beidseitiger Platinen mit Masseplatte ermöglicht, welche ggf. ebenfalls zur Schirmung eingesetzt werden könnten.In addition, the board on which the radiating components are mounted, need not be carried out particularly. It is the use of a single-sided board with a minimum number of layers possible, which for example, a cost savings over using multi-layer, double-sided boards with ground plate allows, which could possibly also be used for shielding.

Die Beleuchtungsvorrichtung ist besonders gut zur Abschirmung von Komponenten geeignet, deren elektromagnetische Strahlung eine Frequenz von ca. 100 KHz oder mehr aufweist.The lighting device is particularly well suited for shielding components whose electromagnetic radiation has a frequency of about 100 KHz or more.

Die Abdeckung umfasst ein optisches Element zur Strahlführung des von der mindestens einen Lichtquelle emittierten Lichts in Form eines Reflektors, wobei die Lichtquelle durch die mittige Öffnung des Reflektors geführt ist.The cover comprises an optical element for the beam guidance of the light emitted by the at least one light source in the form of a reflector, wherein the light source is guided through the central opening of the reflector.

Dann weist der Reflektor bevorzugt eine Metallisierung auf, z. B. auf einer nichtleitenden Grundform.Then, the reflector preferably has a metallization, for. B. on a non-conductive basic form.

Es kann aber auch bevorzugt sein, wenn der Reflektor aus Metall hergestellt ist, z. B. im Tiefziehverfahren.However, it may also be preferred if the reflector is made of metal, for. B. in the deep drawing process.

Der Reflektor ist vorzugsweise elektrisch leitfähig an dem Gehäuse gehaltert, z. B. ohne weitere Befestigungsmittel.The reflector is preferably supported electrically conductive on the housing, for. B. without further fasteners.

Der Reflektor ist alternativ bevorzugt mittels eines elektrisch leitfähigen Klebers mit dem Gehäuse verbunden.Alternatively, the reflector is preferably connected to the housing by means of an electrically conductive adhesive.

Alternativ oder zusätzlich ist der Reflektor vorzugsweise mittels eines elektrisch leitfähigen mechanischen Verbindungselements mit dem Gehäuse verbunden, z. B. einer Metallklammer.Alternatively or additionally, the reflector is preferably connected by means of an electrically conductive mechanical connecting element with the housing, for. B. a metal clip.

Das optische Element weist vorzugsweise eine lichtdurchlässige, elektrisch leitfähige Beschichtung auf, wobei die Beschichtung speziell bevorzugt elektrisch mit dem Gehäuse verbunden ist.The optical element preferably has a light-transmitting, electrically conductive coating, wherein the coating is particularly preferably electrically connected to the housing.

Besonders bevorzugt ist es, wenn die Beschichtung mittels eines elektrisch leitfähigen Klebers elektrisch mit dem Gehäuse verbunden ist. Alternativ kann jede andere geeignete elektrisch leitfähige Verbindung verwendet werden, z. B. eine Lötverbindung.It is particularly preferred if the coating is electrically connected to the housing by means of an electrically conductive adhesive connected is. Alternatively, any other suitable electrically conductive compound may be used, e.g. B. a solder joint.

Alternativ oder zusätzlich kann es bevorzugt sein, wenn die Abdeckung ein lichtdurchlässiges, nicht strahlformendes Abschlusselement, insbesondere eine Abschlussscheibe, umfasst.Alternatively or additionally, it may be preferred if the cover comprises a light-transmitting, non-jet-forming closing element, in particular a cover disk.

Dann wird es bevorzugt, wenn das Abschlusselement eine lichtdurchlässige, elektrisch leitfähige Beschichtung aufweist, die elektrisch mit dem Gehäuse verbunden ist, insbesondere, wenn die Beschichtung mittels eines elektrisch leitfähigen Klebers elektrisch mit dem Gehäuse verbunden ist.It is then preferred if the terminating element has a light-transmitting, electrically conductive coating which is electrically connected to the housing, in particular if the coating is electrically connected to the housing by means of an electrically conductive adhesive.

Bevorzugt wird eine Beleuchtungsvorrichtung, bei der das Gehäuse aus Metall hergestellt ist.Preferred is a lighting device in which the housing is made of metal.

Alternativ kann eine Beleuchtungsvorrichtung bevorzugt sein, bei der das Gehäuse aus leitfähigem, insbesondere metallisiertem, Kunststoff hergestellt ist.Alternatively, a lighting device may be preferred in which the housing is made of conductive, in particular metallized, plastic.

Besonders bevorzugt wird eine Beleuchtungsvorrichtung, bei der das Gehäuse als Kühlkörper ausgebildet ist, z. B. durch Vorsehen von Kühlrippen, aber auch ohne Kühlrippen.Particularly preferred is a lighting device in which the housing is formed as a heat sink, for. B. by providing cooling fins, but also without cooling fins.

Bevorzugt wird ferner eine Beleuchtungsvorrichtung, bei der die mindestens eine elektromagnetische Strahlung aussendende Schaltungskomponente mit mindestens einem elektronischen Filterglied zur Reduzierung einer elektromagnetischen Abstrahlung elektrischer Zuleitungen verbunden ist.Furthermore, a lighting device in which the at least one electromagnetic radiation-emitting circuit component is connected to at least one electronic filter element for reducing electromagnetic radiation of electrical supply lines is preferred.

Insbesondere bevorzugt ist eine Verwendung einer solchen Beleuchtungsvorrichtung in einem Fahrzeug, z. B. als Scheinwerfer, Blinker, Rückleuchte, Bremsleuchte, Seitenleuchte, Abblendleuchte, und so weiter.Particularly preferred is a use of such a lighting device in a vehicle, for. B. as a headlight, turn signal, tail light, brake light, side light, low beam, and so on.

Die mindestens eine LED kann eine einzelne LED sein oder mehrere LEDs umfassen. Die mehreren LEDs können in Gruppen angeordnet sein, sog. LED-Clustern. Die LEDs können einfarbig oder verschiedenfarbig sein. Insbesondere kann das LED-Cluster mehrere verschiedenfarbige LEDs aufweisen, vorzugsweise geeignet für eine weiße additive Farbmischung, z. B. der Art RGB, RRGB, RGGB usw. Die LEDs können spektral rein oder gemischt abstrahlen. Auch sind LEDs umfasst, die IR- oder UV-Licht abstrahlen. Auch umfasst sind LEDs mit wellenlängenumwandelndem Material, z. B. auf Phosphorbasis, z. B. zur Umwandlung von blauem in gelbes Licht.The at least one LED may be a single LED or comprise multiple LEDs. The multiple LEDs can be arranged in groups, so-called LED clusters. The LEDs can be monochrome or different colors. In particular, the LED cluster can have a plurality of differently colored LEDs, preferably suitable for white additive color mixing, for. B. the type RGB, RRGB, RGGB, etc. The LEDs can spectrally pure or mixed radiate. Also includes LEDs that emit IR or UV light. Also included are LEDs with wavelength-converting material, e.g. B. based on phosphorus, z. B. to convert from blue to yellow light.

In einem folgenden Ausführungsbeispiel wird die Erfindung schematisch näher ausgeführt. Dabei können gleiche Bezugsziffern gleiche oder funktional gleiche oder ähnliche Elemente durch mehrere Figuren hindurch bezeichnen.

FIG 1
zeigt als Querschnittsansicht in Seitenansicht eine erfindungsgemäße Leuchtvorrichtung;
FIG 2
zeigt als Querschnittsansicht in Seitenansicht eine weitere Leuchtvorrichtung;
FIG 3
zeigt als Querschnittsansicht in Seitenansicht noch eine weitere Leuchtvorrichtung.
In a following embodiment, the invention is schematically illustrated in more detail. The same reference numerals may denote the same or functionally identical or similar elements through several figures.
FIG. 1
shows a cross-sectional view in side view of a lighting device according to the invention;
FIG. 2
shows a cross-sectional view in side view of a further lighting device;
FIG. 3
shows a cross-sectional view in side view yet another lighting device.

FIG 1 zeigt eine erfindungsgemäße Beleuchtungsvorrichtung 1 mit einem elektrisch leitenden, um eine optische Achse O rotationssymmetrischen Gehäuse 2, dessen Innenraum 3 eine einseitige Öffnung 4 aufweist. Am Boden des Innenraums 3 ist eine einseitig bestückte, nicht abschirmende Platine 5 angebracht, die an ihrer Oberseite einseitig mit einer LED 6 und mit Komponenten 7 eines Schaltnetzteils zur Ansteuerung der LED 6 bestückt ist. Die Komponenten 7 werden durch nicht gezeigte Versorgungsleitungen gespeist, die durch das Gehäuse 2 geführt sind. FIG. 1 shows an inventive lighting device 1 with an electrically conductive, about an optical axis O rotationally symmetrical housing 2, the interior 3 has a single-sided opening 4. At the bottom of the interior 3, a one-sided populated, non-shielding board 5 is mounted, which is equipped on one side with an LED 6 and components 7 of a switching power supply for driving the LED 6 on its upper side. The components 7 are fed by supply lines, not shown, which are led through the housing 2.

Auf die Ränder der Öffnung 4 ist ein elektrisch leitender Reflektor 8 aufgesetzt, der eine mittige Öffnung (ohne Bezugszeichen) aufweist, durch welche die LED 6 geführt ist. Mittels des Reflektors 8 wird Licht, das von der LED 6 auf diesen abgestrahlt wird, durch die Öffnung 4 symmetrisch zur optischen Achse O nach Außen abgestrahlt. Der Reflektor 8 deckt die Komponenten 7 des Schaltnetzteils ab und schafft dadurch zusammen mit dem Gehäuse 2 einen Aufnahmeraum 9 für diese Komponenten 7. Ferner sind der Reflektor 8 und das Gehäuse 2 elektrisch durch einen elektrisch leitfähigen Kleber miteinander verbunden, der sich an der Grenzfläche 10 zwischen Reflektor 8 und Gehäuse 2 befindet.On the edges of the opening 4, an electrically conductive reflector 8 is placed, which has a central opening (without reference numeral), through which the LED 6 is guided. By means of the reflector 8, light emitted from the LED 6 thereon is emitted through the opening 4 symmetrically to the optical axis O to the outside. The reflector 8 covers the components 7 of the switched-mode power supply and thereby provides, together with the housing 2, a receiving space 9 for these components 7. Furthermore, the reflector 8 and the housing 2 are electrically connected to one another by an electrically conductive adhesive which is located at the interface 10 between reflector 8 and housing 2 is located.

Durch die elektrische Verbindung bzw. Masseanbindung zwischen Reflektor 8 und Gehäuse 2 wird ein Faradayscher Käfig gebildet, der elektromagnetische Strahlung daran hindert, aus dem Aufnahmeraum 9 hinaus oder in diesen hinein zu laufen. Dabei ist die mittige Öffnung im Reflektor 8 zur Durchführung der LED 6 für typische Frequenzen ca. ≥ 100 KHz, wie sie von Schaltnetzteilen erzeugt werden, unschädlich.As a result of the electrical connection or ground connection between the reflector 8 and the housing 2, a Faraday cage is formed which prevents electromagnetic radiation from running out of or into the receiving space 9. In this case, the central opening in the reflector 8 for the implementation of the LED 6 for typical frequencies about ≥ 100 KHz, as they are generated by switching power supplies harmless.

Im gezeigten Beispiel besteht der Reflektor 8 aus Metall, ggf. mit Schutzschichten, und ist im Tiefziehverfahren hergestellt.In the example shown, the reflector 8 is made of metal, optionally with protective layers, and is produced by thermoforming.

Alternativ ist das Gehäuse nicht rotationssymmetrisch ausgeführt, sondern länglich, wobei dann in FIG 1 die Längsachse senkrecht zur Blattebene liegt. Dieser Fall ist insbesondere zur Nebeneinanderreihung mehrerer LEDs geeignet, die einen gemeinsamen Reflektor aufweisen, z. B. zum Aufbau einer länglichen Leuchte, z. B. einer hoch angebrachten Bremsleuchte.Alternatively, the housing is not rotationally symmetrical, but elongated, in which case FIG. 1 the longitudinal axis is perpendicular to the page plane. This case is particularly suitable for juxtaposing multiple LEDs, which have a common reflector, z. B. to build an elongated light, z. B. a high-mounted brake light.

Alternativ kann der Reflektor eine mit dem Gehäuse geeignet verbundene, insbesondere großflächige Metallisierung aufweisen, z. B. aufgebracht auf einen Kunststoff-Grundkörper. Diese Metallisierung kann dann auch zur Lichtreflexion verwendet werdenAlternatively, the reflector may have a suitably connected to the housing, in particular large-scale metallization, for. B. applied to a plastic body. This metallization can then also be used for light reflection

Als Massenanbindung des Reflektors an das Gehäuse kann eventuell bereits seine mechanische Halterung am Gehäuse, also ohne Haftverbindung, ausreichen. Alternativ oder zusätzlich kann die Masseanbindung beispielsweise durch eine mechanische Spannvorrichtung aus Metall gegeben sein.As a mass connection of the reflector to the housing may possibly already its mechanical support on the housing, ie without adhesive connection sufficient. Alternatively or additionally, the ground connection can be given for example by a mechanical tensioning device made of metal.

FIG 2 zeigt eine Beleuchtungsvorrichtung 11, die sich nun im Unterschied zu derjenigen aus FIG 1 statt eines Reflektors einer Projektionslinse 12 als (sekundärer) Optik bedient, welche die Öffnung 4 abdeckt und eine transparente, elektrisch leitfähige Beschichtung 13 aufweist. Die Beschichtung 13 ist durch einen elektrisch leitfähigen Klebstoff 14 mit dem Gehäuse verbunden, wodurch nun die EMV-Abschirmung bzw. Bildung des Aufnahmeraums 15 durch das Gehäuse 2 und die Linse 12 bzw. deren Beschichtung 13 erfolgt. Die Beschichtung 13 kann beispielsweise InO:Sn, ZnO:AI oder Kohlenstoffnanoröhrchen umfassen. Je nach Design kann die elektrisch leitfähige Beschichtung 13 auf der Innen- oder Außenseite der Linse 12 aufgebracht sein. Zusätzlich ist zwischen LED 6 und Linse 12 eine primäre Optik 16 zur Strahlformung des von der LED 6 ausgestrahlten Lichts angeordnet. FIG. 2 shows a lighting device 11, which now differs from that of FIG. 1 instead of a reflector of a projection lens 12 served as (secondary) optics, which covers the opening 4 and a transparent, electrically conductive coating 13 has. The coating 13 is connected by an electrically conductive adhesive 14 to the housing, whereby now the EMC shielding or formation of the receiving space 15 by the housing 2 and the lens 12 and its coating 13 takes place. The coating 13 may comprise, for example, InO: Sn, ZnO: Al or carbon nanotubes. Depending on the design, the electrically conductive coating 13 may be applied to the inside or outside of the lens 12. In addition, a primary optics 16 for beam shaping of the light emitted by the LED 6 is arranged between the LED 6 and the lens 12.

Auch hier braucht das Gehäuse nicht rotationssymmetrisch ausgebildet zu sein, sondern kann beispielsweise auch länglich ausgeführt sein, insbesondere bei Verwendung mehrerer LEDs.Again, the housing need not be rotationally symmetrical, but may for example also be elongated, especially when using multiple LEDs.

FIG 3 zeigt eine Beleuchtungsvorrichtung 17, bei der nun im Gegensatz zu der Ausführungsform von FIG 2 statt der Linse eine lichtdurchlässige Abschlussscheibe 18 ohne wesentliche optische Wirkung vorhanden ist. Auch die Abschlussscheibe 18 weist eine transparente, elektrisch leitfähige Beschichtung 19 auf, die in diesem Beispiel durch einen elektrisch leitfähigen Klebstoff 20 mit dem Gehäuse verbunden, wodurch nun die EMV-Abschirmung bzw. Bildung des Aufnahmeraums 21 durch das Gehäuse 2 und die die Abschlussscheibe 18 bzw. deren Beschichtung 19 erfolgt. Die Beschichtung 19 kann beispielsweise InO:Sn, ZnO:AI oder Kohlenstoffnanoröhrchen umfassen. Je nach Design kann die elektrisch leitfähige Beschichtung 19 auf der Innen- oder Außenseite der Abschlussscheibe 18 ohne wesentliche optische Wirkung aufgebracht sein. FIG. 3 shows a lighting device 17, in which now in contrast to the embodiment of FIG. 2 instead of the lens a translucent lens 18 is present without significant visual effect. The cover plate 18 also has a transparent, electrically conductive coating 19, which in this example is connected to the housing by an electrically conductive adhesive 20, as a result of which the EMC shield or formation of the receiving space 21 through the housing 2 and the cover plate 18 or the coating 19 takes place. The coating 19 may, for example InO: Sn, ZnO: include AI or carbon nanotubes. Depending on the design, the electrically conductive coating 19 may be applied to the inside or outside of the lens 18 without significant optical effect.

Für die EMV-gerechte Abschirmung der elektrischen Zuleitungen (ohne Abbildung) zur Leuchtvorrichtung (LED-Modul) sind in der Treiberelektronik 7 elektronische Filterglieder integriert, die eine Abschirmung der Zuleitungskabel unnötig machen. Ansonsten ist auch die Verwendung eines geschirmten Zuleitungskabels möglich, welches an beiden Enden elektrisch leitfähig mit den entsprechenden Gegensteckern verbunden ist.For EMC-compliant shielding of the electrical leads (not shown) to the lighting device (LED module) 7 electronic filter elements are integrated in the driver electronics, which make a shielding of the supply cable unnecessary. Otherwise, the use of a shielded supply cable is possible, which is electrically conductively connected at both ends with the corresponding mating connectors.

Selbstverständlich ist die vorliegende Erfindung nicht auf die vorliegenden Ausführungsbeispiele beschränkt. So kann die Form des Innenraums unterschiedlich ausgeprägt sein, z. B. nicht viereckig im Querschnitt, sondern beliebig geformt.Of course, the present invention is not limited to the present embodiments. Thus, the shape of the interior may be different, z. B. not square in cross-section, but arbitrarily shaped.

Das Gehäuse kann auch als Kühlkörper ausgeführt sein und kann dazu z. B. Kühlrippen ausweisen.The housing can also be designed as a heat sink and can be z. B. Identify cooling fins.

Das Gehäuse kann beispielsweise statt aus Vollmetall auch aus metallisiertem oder metallbewehrtem Kunststoff oder einem anderen geeigneten elektrisch leitfähigen Material oder Materialverbund bestehen.For example, instead of being made of solid metal, the housing can also consist of metallized or metal-reinforced plastic or another suitable electrically conductive material or composite material.

Auch braucht ferner keine einzelne LED als Lichtquelle verwendet zu werden, sondern es können beispielsweise auch LED-Cluster aus mehreren verschiedenfarbigen LEDs verwendet werden, deren Farben additiv zusammengemischt werden.Furthermore, furthermore, no single LED needs to be used as the light source, but it is also possible, for example, to use LED clusters of a plurality of differently colored LEDs whose colors are mixed together in an additive manner.

Allgemein ist die Erfindung nicht auf LEDs beschränkt, sondern kann auch andere geeignete Lichtquellen umfassen, die abstrahlende Elemente zu ihrer Ansteuerung benötigen, z. B. Laserdioden.Generally, the invention is not limited to LEDs, but may include other suitable light sources that require radiating elements to drive them, e.g. B. laser diodes.

Auch können im Aufnahmeraum strahlende Elemente untergebracht werden, die nicht zur Ansteuerung der LEDs benötigt werden, sondern für andere Zwecke.Also in the recording room radiant elements can be accommodated, which are not needed to drive the LEDs, but for other purposes.

Die Erfindung ist nicht auf eine Anwendung im Fahrzeugbau beschränkt, sondern kann alle geeigneten Beleuchtungsanwendungen umfassen.The invention is not limited to an automotive application, but may include any suitable lighting application.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Beleuchtungsvorrichtunglighting device
22
Gehäusecasing
33
Innenrauminner space
44
Öffnungopening
55
Platinecircuit board
66
LEDLED
77
Komponenten eines SchaltnetzteilsComponents of a switching power supply
88th
Reflektorreflector
99
Aufnahmeraumaccommodation space
1010
Grenzflächeinterface
1111
Beleuchtungsvorrichtunglighting device
1212
Projektionslinseprojection lens
1313
Beschichtungcoating
1414
Klebstoffadhesive
1515
Aufnahmeraumaccommodation space
1616
Primäroptikprimary optics
1717
Beleuchtungsvorrichtunglighting device
1818
Abschlussscheibelens
1919
Beschichtungcoating
2020
Klebstoffadhesive
2121
Aufnahmeraumaccommodation space
OO
optische Achseoptical axis

Claims (14)

  1. Lighting apparatus (1) with an electrically conductive housing (2), in whose interior (3) at least one light source (6), in particular an LED, and at least one electromagnetic radiation-emitting circuit component (7) for operating the at least one light source (6) are arranged, and with an electrically conductive cover (8; 12, 13; 18, 19) for covering the circuit components (7), the cover (8; 12, 13; 18, 19) and the housing (2) being electrically connected to one another, wherein the cover (8) comprises an optical element for guiding the beam of light emitted by the light source (6) in the form of a reflector (8) and wherein the light source (6) is passed through a central opening of the reflector (8).
  2. Lighting apparatus (1) according to Claim 1, in which the electromagnetic radiation has a frequency of approximately 100 kHz or more.
  3. Lighting apparatus (1) according to one of the preceding claims, in which the reflector has a metal plating.
  4. Lighting apparatus (1) according to one of Claims 1 to 2, in which the reflector (8) is produced from metal.
  5. Lighting apparatus (1) according to one of the preceding claims, in which the reflector (8) is held in an electrically conductive manner on the housing (2).
  6. Lighting apparatus (1) according to one of the preceding claims, in which the reflector (8) is connected to the housing (2) by means of an electrically conductive adhesive.
  7. Lighting apparatus (1) according to one of the preceding claims, in which the reflector is connected to the housing (2) by means of an electrically conductive, mechanical connecting element.
  8. Lighting apparatus (1) according to one of the preceding claims, in which the housing (2) is produced from metal.
  9. Lighting apparatus (1) according to one of Claims 1 to 7, in which the housing is produced from conductive, in particular metal-plated, plastic.
  10. Lighting apparatus (1) according to one of the preceding claims, in which the housing is in the form of a heat sink.
  11. Lighting apparatus (1) according to one of the preceding claims, in which the at least one electromagnetic radiation-emitting circuit component (7) is connected to at least one electronic filter element for reducing emission of electromagnetic radiation from electrical feed lines.
  12. Lighting apparatus (1) according to one of the preceding claims, in which the at least one light source has at least one LED (6).
  13. Lighting apparatus (1) according to Claim 12, in which the at least one electromagnetic radiation-emitting circuit component (7) has at least one component of a switched-mode power supply.
  14. Vehicle lighting system with a lighting apparatus (1) according to one of the preceding claims.
EP08785463.4A 2007-08-10 2008-08-08 Lighting apparatus Active EP2179217B1 (en)

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DE102007037822A DE102007037822A1 (en) 2007-08-10 2007-08-10 lighting device
PCT/EP2008/006570 WO2009021694A1 (en) 2007-08-10 2008-08-08 Lighting apparatus

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Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5288161B2 (en) * 2008-02-14 2013-09-11 東芝ライテック株式会社 Light emitting module and lighting device
DE102009047765A1 (en) * 2009-12-10 2011-06-16 Ifm Electronic Gmbh High frequency modulated lighting for photonic mixer device camera installed in motor vehicle, has opening formed in housing at region of light sources, and metal plating that controls electromagnetic emission
CN102762920B (en) * 2010-02-11 2015-04-08 帝斯曼知识产权资产管理有限公司 Led lighting device
DE202010007032U1 (en) * 2010-04-09 2011-08-09 Tridonic Jennersdorf Gmbh LED module for spotlights
EP2386792B1 (en) * 2010-05-12 2013-09-11 Zizala Lichtsysteme GmbH LED light module
WO2012081258A1 (en) * 2010-12-16 2012-06-21 パナソニック株式会社 Illuminating light source and illuminating device
RU2649891C2 (en) * 2012-02-03 2018-04-05 Филипс Лайтинг Холдинг Б.В. Lighting driver and body that has a internal electromagnetic screen layer for direct connection with earth connection
DE102012202354A1 (en) 2012-02-16 2013-08-22 Osram Gmbh light module
JP5690764B2 (en) * 2012-03-06 2015-03-25 株式会社ホンダアクセス Lighting device
DE102012204786A1 (en) * 2012-03-26 2013-09-26 Osram Gmbh LIGHTING DEVICE WITH FLUORESCENT BODY ON COOLING BODY
US20130335980A1 (en) * 2012-06-13 2013-12-19 Panasonic Corporation Light emitting device and lighting fixture
US9696012B2 (en) * 2012-10-04 2017-07-04 Guardian Industries Corp. Embedded LED assembly with optional beam steering optical element, and associated products, and/or methods
JP2014149978A (en) * 2013-02-01 2014-08-21 Ichikoh Ind Ltd Vehicular lamp
AT513747B1 (en) 2013-02-28 2014-07-15 Mikroelektronik Ges Mit Beschränkter Haftung Ab Assembly process for circuit carriers and circuit carriers
JP6441652B2 (en) * 2014-02-12 2018-12-19 株式会社小糸製作所 Vehicle lighting
FR3022608B1 (en) * 2014-06-19 2018-07-20 Psa Automobiles Sa. LIGHTING AND / OR SIGNALING DEVICE GENERATING A HOMOGENEOUS LIGHT ON A SCREEN
DE102014009594A1 (en) * 2014-06-27 2015-12-31 Audi Ag Lighting device for a motor vehicle with a safety device for detecting fault conditions and method for detecting fault conditions
FR3032516B1 (en) 2015-02-06 2021-04-16 Valeo Vision LUMINOUS MODULE REFLECTOR DEVICE WITH ELECTROMAGNETIC SHIELDING
KR101755783B1 (en) * 2015-03-05 2017-07-20 현대자동차주식회사 Laser optical system for in vehicle
US10100998B2 (en) * 2015-05-26 2018-10-16 The Boeing Company Electrically shielded lighting apparatus
FR3037730A1 (en) * 2015-06-22 2016-12-23 Valeo Vision LUMINOUS DEVICE OF A MOTOR VEHICLE WITH LIMITED ELECTROMAGNETIC RADIATION
FR3047796B1 (en) * 2016-02-15 2019-05-24 Valeo Vision Belgique LUMINOUS DEVICE HOUSING OF A MOTOR VEHICLE
DE102017115593A1 (en) * 2017-07-12 2019-01-17 HELLA GmbH & Co. KGaA Lighting device for vehicles
FR3090076A1 (en) * 2018-12-12 2020-06-19 Valeo Vision Belgique Lighting device comprising an electronic circuit protected by a Faraday cage
WO2022152553A1 (en) * 2021-01-12 2022-07-21 Signify Holding B.V. Lighting arrangement for illumination and disinfection lighting

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8205219U1 (en) 1982-02-25 1982-05-19 Walz, Alfred, Prof. Dr.-Ing., 7830 Emmendingen WORKPLACE LIGHT
DE3701789A1 (en) 1987-01-22 1988-08-04 Siemens Ag Indicating unit (display unit)
JPH03136938A (en) 1989-10-23 1991-06-11 Nissan Motor Co Ltd Discharge lamp head lamp device for vehicle
US5006763A (en) * 1990-03-12 1991-04-09 General Electric Company Luminaire for an electrodeless high intensity discharge lamp with electromagnetic interference shielding
JP2626155B2 (en) * 1990-04-20 1997-07-02 日産自動車株式会社 Vehicle discharge lamp headlamp
US5581157A (en) * 1992-05-20 1996-12-03 Diablo Research Corporation Discharge lamps and methods for making discharge lamps
DE4310307B4 (en) * 1993-03-30 2004-10-14 Robert Bosch Gmbh Headlights for vehicles
CN1096103C (en) * 1995-05-24 2002-12-11 皇家菲利浦电子有限公司 Lighting unit and electrodeless low-pressure discharge lamp, and discharge vessel for use in said lighting unit
US5882108A (en) * 1995-10-12 1999-03-16 Valeo Sylvania L.L.C. Lighting with EMI shielding
JP3195215B2 (en) * 1995-12-28 2001-08-06 株式会社小糸製作所 Automotive headlamp
AU7619996A (en) * 1996-01-11 1997-08-01 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Electric lamp with uncemented base
JP3854421B2 (en) * 1999-02-23 2006-12-06 株式会社小糸製作所 Vehicle lamp having a discharge bulb
JP4106801B2 (en) * 1999-03-24 2008-06-25 松下電工株式会社 Fuel cell power generation system
CN1334591A (en) * 2000-07-18 2002-02-06 戴培钧 High-frequency induced electrodeless electronic fluorescent lamp
DE10308866A1 (en) * 2003-02-28 2004-09-09 Osram Opto Semiconductors Gmbh Lighting module and method for its production
DE10329078A1 (en) 2003-06-27 2005-01-20 Osram Opto Semiconductors Gmbh Illumination module especially for air-traffic signaling or warning lamp, has LED encapsulated in housing with light-emission window
JP3987485B2 (en) 2003-12-25 2007-10-10 セイコーエプソン株式会社 Light source device and projector
DE202004003793U1 (en) 2004-03-11 2004-05-13 Hella Kg Hueck & Co. Light emitting diode (LED) assembly for fitting into cars, comprises cooler for dissipating waste heat and directly supporting LEDs and electronic components
JP2006184347A (en) 2004-12-27 2006-07-13 Casio Comput Co Ltd Image display device
JP2006302712A (en) * 2005-04-21 2006-11-02 Koito Mfg Co Ltd Vehicle head-lamp
JP4656997B2 (en) * 2005-04-21 2011-03-23 株式会社小糸製作所 Vehicle lighting
JP2006302713A (en) * 2005-04-21 2006-11-02 Koito Mfg Co Ltd Vehicle head-lamp
JP4471169B2 (en) * 2005-04-21 2010-06-02 株式会社小糸製作所 Projector type vehicle lamp unit
JP4703375B2 (en) * 2005-11-08 2011-06-15 株式会社小糸製作所 Interior lighting
DE102006001981A1 (en) 2006-01-16 2007-08-02 CFL Licht & Design GbR (vertretungsberechtigte Gesellschafter: Wilfried Böhm Light strip for e.g. decorative illumination system, has base firmly connected with metal section, such that narrow side of base is arranged on open side of section, where side surfaces and side are laid in section without distance
JP4500273B2 (en) * 2006-01-31 2010-07-14 株式会社小糸製作所 Vehicle headlamp
JP4595914B2 (en) * 2006-10-03 2010-12-08 パナソニック電工株式会社 LED lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102007037822A1 (en) 2009-02-12
JP5416102B2 (en) 2014-02-12
CN101688659A (en) 2010-03-31
US8602620B2 (en) 2013-12-10
WO2009021694A1 (en) 2009-02-19
US20110038172A1 (en) 2011-02-17
CN101688659B (en) 2013-01-23
EP2179217A1 (en) 2010-04-28
JP2010531037A (en) 2010-09-16

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