DE102021202388A1 - Lighting device with heat sink - Google Patents
Lighting device with heat sink Download PDFInfo
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- DE102021202388A1 DE102021202388A1 DE102021202388.6A DE102021202388A DE102021202388A1 DE 102021202388 A1 DE102021202388 A1 DE 102021202388A1 DE 102021202388 A DE102021202388 A DE 102021202388A DE 102021202388 A1 DE102021202388 A1 DE 102021202388A1
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- lighting device
- electrically conductive
- heat sink
- conductive substrate
- conductor tracks
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- 239000004020 conductor Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
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- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/644—Heat extraction or cooling elements in intimate contact or integrated with parts of the device other than the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/647—Heat extraction or cooling elements the elements conducting electric current to or from the semiconductor body
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/641—Heat extraction or cooling elements characterized by the materials
Abstract
Die vorliegende Erfindung betrifft eine Beleuchtungsvorrichtung (1) mit einem Kühlkörper (2) und zumindest einem Leuchtmittel (6). Auf dem Kühlkörper (2) sind ein isolierendes Substrat (3) und ein elektrisch leitendes Substrat (4) angeordnet. Das elektrisch leitende Substrat (4) bildet Leiterbahnen (5). Das zumindest eine Leuchtmittel (6) ist auf dem elektrisch leitenden Substrat (4) angeordnet und elektrisch an die Leiterbahnen (5) angebunden.The present invention relates to a lighting device (1) with a heat sink (2) and at least one light source (6). An insulating substrate (3) and an electrically conductive substrate (4) are arranged on the heat sink (2). The electrically conductive substrate (4) forms conductor tracks (5). The at least one light source (6) is arranged on the electrically conductive substrate (4) and is electrically connected to the conductor tracks (5).
Description
Die vorliegende Erfindung betrifft eine Beleuchtungsvorrichtung mit einem Kühlkörper und zumindest einem Leuchtmittel.The present invention relates to a lighting device with a heat sink and at least one light source.
Zur Bilderzeugung durch einen Bildgenerator eines Head-up-Displays wird oftmals ein Backlight benötigt, d.h. eine Hintergrundbeleuchtung. Das Backlight nutzt dabei in der Regel LEDs (LED: Light Emitting Diode; Leuchtdiode). Das Licht der LEDs wird durch ein Linsensystem gerichtet. Die Positionierung der LEDs zum Linsensystem, welches über den LEDs positioniert ist, ist von hoher Bedeutung. Darüber hinaus werden die LEDs mit hohen Strömen betrieben, damit eine ausreichende Helligkeit des Bildes ermöglicht wird. Dies führt zu einer enormen Abwärme der LEDs, die abgeführt werden muss.A backlight is often required for image generation by an image generator of a head-up display, i.e. background lighting. The backlight usually uses LEDs (LED: Light Emitting Diode; light-emitting diode). The light from the LEDs is directed through a lens system. The positioning of the LEDs to the lens system, which is positioned above the LEDs, is of great importance. In addition, the LEDs are operated with high currents so that the image is sufficiently bright. This leads to an enormous amount of waste heat from the LEDs, which has to be dissipated.
In diesem Zusammenhang beschreibt
Zur Kühlung der LEDs des Backlights des Bildgenerators kann anstelle einer Luftkühlung eine thermische Anbindung an einen Kühlkörper realisiert werden. Die LEDs sind auf einer Leiterplatte aufgebracht. Diese Leiterplatte kann mittels eines Wärmeleitmediums thermisch an den Kühlkörper angebunden werden.To cool the LEDs of the backlight of the image generator, a thermal connection to a heat sink can be implemented instead of air cooling. The LEDs are mounted on a printed circuit board. This printed circuit board can be thermally connected to the heat sink by means of a thermally conductive medium.
Beispielsweise beschreibt
Beim thermischen Anbinden einer Leiterplatte an den Kühlkörper mittels eines Wärmeleitmediums kann eine inhomogene Verteilung des Wärmeleitmediums allerdings zum Durchbiegen der Leiterplatte führen. Dies führt wiederum zu einer großen Variation der relativen Ausrichtung der LEDs entlang der z-Achse.However, when thermally connecting a printed circuit board to the heat sink by means of a thermally conductive medium, an inhomogeneous distribution of the thermally conductive medium can lead to the printed circuit board sagging. This in turn leads to a large variation in the relative orientation of the LEDs along the z-axis.
Es ist eine Aufgabe der Erfindung, eine Beleuchtungsvorrichtung bereitzustellen, die ohne ein aufzubringendes Wärmeleitmedium auskommt.It is an object of the invention to provide a lighting device that does not require the application of a thermally conductive medium.
Diese Aufgabe wird durch eine Beleuchtungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is achieved by a lighting device having the features of
Gemäß einem ersten Aspekt der Erfindung hat eine Beleuchtungsvorrichtung:
- - einen Kühlkörper;
- - ein auf dem Kühlkörper angeordnetes isolierendes Substrat;
- - ein auf dem isolierenden Substrat angeordnetes elektrisch leitendes Substrat, das Leiterbahnen bildet; und
- - zumindest ein auf dem elektrisch leitenden Substrat angeordnetes Leuchtmittel, das elektrisch an die Leiterbahnen angebunden ist.
- - a heat sink;
- - an insulating substrate arranged on the heat sink;
- - an electrically conductive substrate arranged on the insulating substrate and forming conductor tracks; and
- - at least one arranged on the electrically conductive substrate illuminant, which is electrically connected to the conductor tracks.
Bei der erfindungsgemäßen Lösung werden die Leiterbahnen für das Leuchtmittel direkt auf den Kühlkörper beschichtet. Das Leuchtmittel ist dabei unmittelbar auf dem elektrisch leitenden Substrat angeordnet. Dadurch entsteht ein thermisch direkterer Kontakt des Leuchtmittels zum Kühlkörper, zumal die Substrate metallbasiert und sehr dünn ausgeführt werden können. Zudem entfällt die Leiterplatte, sodass bei der Fertigung der Beleuchtungsvorrichtung das Handling eines Wärmeleitmediums entfällt. Zugleich verringert sich die Aufbauhöhe.In the solution according to the invention, the conductor tracks for the light source are coated directly onto the heat sink. The lighting means is arranged directly on the electrically conductive substrate. This creates a more direct thermal contact between the light source and the heat sink, especially since the substrates are metal-based and can be made very thin. In addition, there is no printed circuit board, so that the handling of a heat-conducting medium is no longer necessary during the manufacture of the lighting device. At the same time, the structural height is reduced.
Gemäß einem Aspekt der Erfindung werden die Leiterbahnen durch flächige Bereiche des elektrisch leitenden Substrats gebildet. Dies hat den Vorteil, dass ein gewisser Spielraum für die Platzierung des Leuchtmittels auf dem Kühlkörper besteht, solange nur die elektrischen Pole des Leuchtmittels jeweils mit einer geeigneten Leiterbahn verbunden sind. Zudem reduziert die flächige Ausgestaltung der Leiterbahnen die Anforderungen an die Genauigkeit Fertigung.According to one aspect of the invention, the conductor tracks are formed by flat areas of the electrically conductive substrate. This has the advantage that there is a certain amount of leeway for the placement of the light source on the heat sink, as long as the electrical poles of the light source are each connected to a suitable conductor track. In addition, the planar design of the conductor tracks reduces the requirements for accuracy in production.
Gemäß einem Aspekt der Erfindung ist zumindest das das elektrisch leitende Substrat mittels Kaltgasspritzen aufgebracht. Durch Kaltgasspritzen, auch als „Cold Gas Technology“ oder „Cold Gas Spraying“ bezeichnet, lassen sich sehr homogene und dichte Schichten aufbringen, insbesondere auch metallische Schichten. Die physikalischen und chemischen Eigenschaften dieser metallischen Schichten unterscheiden sich kaum von denen des verwendeten Metalls. Ein großer Vorteil besteht zudem darin, dass das aufgespritzte Metall beim Prozess nicht angeschmolzen oder aufgeschmolzen wird. Damit wird der thermische Einfluss auf Schicht und den Kühlkörper minimiert. Auch das isolierende Substrat kann mittels eines Spritzverfahrens aufgebracht werden. Dabei wird vorzugsweise ein Verfahren gewählt, das ein Anschmelzen des Spritzmaterial erlaubt, um so beim Auftreffen auf den Kühlkörper ein mechanisches Verkrallen thermisch zu unterstützen.According to one aspect of the invention, at least the electrically conductive substrate is applied by means of cold gas spraying. Cold gas spraying, also known as "cold gas technology" or "cold gas spraying", can be used to apply very homogeneous and dense layers, especially metallic layers. The physical and chemical properties of these metallic layers hardly differ from those of the metal used. Another great advantage is that the metal sprayed on is not melted or melted during the process. This minimizes the thermal influence on the layer and the heat sink. Also the isolating Substrate can be applied using a spraying process. In this case, a method is preferably selected that allows the spray material to melt, in order to thermally support mechanical clawing when it hits the heat sink.
Gemäß einem Aspekt der Erfindung umfasst das isolierende Substrat eine Aluminiumoxidschicht. Aluminiumoxid ist ein sehr guter Isolator und weist zudem eine gute Wärmeleitfähigkeit auf. Die Dicke der Aluminiumoxidschicht kann beispielsweise in der Größenordnung von etwa 125 µm liegen.According to one aspect of the invention, the insulating substrate includes an aluminum oxide layer. Aluminum oxide is a very good insulator and also has good thermal conductivity. The thickness of the aluminum oxide layer can be, for example, of the order of about 125 μm.
Gemäß einem Aspekt der Erfindung umfasst das elektrisch leitende Substrat eine Aluminiumschicht und eine Kupferschicht. Beide Materialien lassen sich gut durch Kaltgasspritzen aufbringen. Die Kupferschicht erleichtert dabei die elektrische Anbindung des Leuchtmittels und zeichnet sich zudem durch eine hohe elektrische Leitfähigkeit aus. Die Aluminiumschicht verbessert die Haftung des Kupfers im Vergleich zu einem direkten Aufbringen von Kupfer, sodass eine bessere Langzeitstabilität erreicht wird. Die Dicke der Aluminiumschicht kann beispielsweise in der Größenordnung von etwa 250 µm liegen, die der Kupferschicht in der Größenordnung von etwa 50 µm.According to one aspect of the invention, the electrically conductive substrate comprises an aluminum layer and a copper layer. Both materials can be easily applied by cold gas spraying. The copper layer facilitates the electrical connection of the lamp and is also characterized by high electrical conductivity. The aluminum layer improves the adhesion of the copper compared to direct copper application, resulting in better long-term stability. The thickness of the aluminum layer can be, for example, on the order of about 250 μm, and that of the copper layer on the order of about 50 μm.
Gemäß einem Aspekt der Erfindung ist das zumindest eine Leuchtmittel mit den Leiterbahnen verlötet. Auf diese Weise wird sowohl eine sehr gute elektrische Anbindung als auch eine sehr gute thermische Anbindung erzielt.According to one aspect of the invention, the at least one light source is soldered to the conductor tracks. In this way, both a very good electrical connection and a very good thermal connection are achieved.
Gemäß einem Aspekt der Erfindung weist die Beleuchtungsvorrichtung eine Vielzahl von Leuchtdioden auf. Die Verwendung einer Vielzahl von Leuchtdioden als Leuchtmittel erlaubt es, auf dem Kühlkörper eine flächige Beleuchtung zu realisieren, wie sie beispielsweise für ein Backlight einer Anzeigevorrichtung benötigt wird.According to one aspect of the invention, the lighting device has a multiplicity of light-emitting diodes. The use of a large number of light-emitting diodes as lighting means makes it possible to realize planar lighting on the heat sink, as is required for a backlight of a display device, for example.
Gemäß einem Aspekt der Erfindung ist die Beleuchtungsvorrichtung als Backlight für einen Bildgenerator ausgestaltet. Die sehr glatte und ebene Fläche des Kühlkörpers führt zu einer sehr guten Ausrichtung der Leuchtdioden relativ zueinander entlang der z-Achse. Dies führt zu einer besseren optischen Performance des Bildgenerators, was insbesondere bei der Verwendung in einem Head-up-Display von Bedeutung ist. Auch reduziert sich die Anzahl der Teile in der Fertigungslinie auf eine Baugruppe.According to one aspect of the invention, the lighting device is designed as a backlight for an image generator. The very smooth and flat surface of the heatsink leads to a very good alignment of the light-emitting diodes relative to each other along the z-axis. This leads to better optical performance of the image generator, which is particularly important when used in a head-up display. The number of parts in the production line is also reduced to one assembly.
Ein solcher Bildgenerator wird vorzugsweise in einem Head-up-Display für ein Fortbewegungsmittel verwendet.Such an image generator is preferably used in a head-up display for a means of transportation.
Weitere Merkmale der vorliegenden Erfindung werden aus der nachfolgenden Beschreibung und den angehängten Ansprüchen in Verbindung mit den Figuren ersichtlich.Further features of the present invention will become apparent from the following description and the appended claims in conjunction with the figures.
Figurenlistecharacter list
-
1 zeigt schematisch eine erfindungsgemäße Beleuchtungsvorrichtung;1 shows schematically a lighting device according to the invention; -
2 zeigt schematisch einen Schnitt durch die Beleuchtungsvorrichtung aus1 ; und2 FIG. 1 schematically shows a section through thelighting device 1 ; and -
3 zeigt schematisch ein Backlight für einen Bildgenerator eines Head-up-Displays.3 shows schematically a backlight for an image generator of a head-up display.
Figurenbeschreibungcharacter description
Zum besseren Verständnis der Prinzipien der vorliegenden Erfindung werden nachfolgend Ausführungsformen der Erfindung anhand der Figuren detaillierter erläutert. Gleiche Bezugszeichen werden in den Figuren für gleiche oder gleichwirkende Elemente verwendet und nicht notwendigerweise zu jeder Figur erneut beschrieben. Es versteht sich, dass sich die Erfindung nicht auf die dargestellten Ausführungsformen beschränkt und dass die beschriebenen Merkmale auch kombiniert oder modifiziert werden können, ohne den Schutzbereich der Erfindung zu verlassen, wie er in den angehängten Ansprüchen definiert ist.For a better understanding of the principles of the present invention, embodiments of the invention are explained in more detail below with reference to the figures. The same reference symbols are used in the figures for the same or equivalent elements and are not necessarily described again for each figure. It goes without saying that the invention is not limited to the illustrated embodiments and that the features described can also be combined or modified without going beyond the protective scope of the invention as defined in the appended claims.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent Literature Cited
- US 2019/0182994 A1 [0003]US 2019/0182994 A1 [0003]
- DE 10016817 A1 [0005]DE 10016817 A1 [0005]
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021202388.6A DE102021202388A1 (en) | 2021-03-11 | 2021-03-11 | Lighting device with heat sink |
PCT/DE2022/200036 WO2022188932A1 (en) | 2021-03-11 | 2022-03-08 | Illumination device having a cooling body |
DE112022001436.9T DE112022001436A5 (en) | 2021-03-11 | 2022-03-08 | Lighting device with heat sink |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102021202388.6A DE102021202388A1 (en) | 2021-03-11 | 2021-03-11 | Lighting device with heat sink |
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DE102021202388A1 true DE102021202388A1 (en) | 2022-09-15 |
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DE102021202388.6A Withdrawn DE102021202388A1 (en) | 2021-03-11 | 2021-03-11 | Lighting device with heat sink |
DE112022001436.9T Pending DE112022001436A5 (en) | 2021-03-11 | 2022-03-08 | Lighting device with heat sink |
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DE112022001436.9T Pending DE112022001436A5 (en) | 2021-03-11 | 2022-03-08 | Lighting device with heat sink |
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WO (1) | WO2022188932A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10016817A1 (en) | 2000-04-05 | 2001-10-18 | Mannesmann Vdo Ag | Color head-up display, especially for a vehicle |
DE102004013680A1 (en) | 2004-03-18 | 2005-10-20 | Siemens Ag | Light source for imaging unit |
KR101055383B1 (en) | 2010-03-15 | 2011-08-08 | (주)포인트엔지니어링 | Optical element device and fabricating method thereof |
US20190182994A1 (en) | 2017-12-13 | 2019-06-13 | Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America | Head up display cooling |
DE102017130362A1 (en) | 2017-12-18 | 2019-07-11 | Valeo Schalter Und Sensoren Gmbh | Method for producing an electronic assembly, electronic assembly, image forming apparatus, head-up display and vehicle with head-up display |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015050303A (en) * | 2013-08-30 | 2015-03-16 | 東芝ライテック株式会社 | Light-emitting device |
JP6203942B2 (en) * | 2014-04-04 | 2017-09-27 | シャープ株式会社 | Method for manufacturing substrate for light emitting device, method for manufacturing light emitting device, and method for manufacturing lighting device |
WO2015163075A1 (en) * | 2014-04-23 | 2015-10-29 | シャープ株式会社 | Substrate for light-emitting device, light-emitting device, and method for manufacturing substrate for light-emitting device |
KR102380582B1 (en) * | 2017-08-25 | 2022-03-31 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Light emitting device package and manufacture method, light source apparatus |
-
2021
- 2021-03-11 DE DE102021202388.6A patent/DE102021202388A1/en not_active Withdrawn
-
2022
- 2022-03-08 DE DE112022001436.9T patent/DE112022001436A5/en active Pending
- 2022-03-08 WO PCT/DE2022/200036 patent/WO2022188932A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10016817A1 (en) | 2000-04-05 | 2001-10-18 | Mannesmann Vdo Ag | Color head-up display, especially for a vehicle |
DE102004013680A1 (en) | 2004-03-18 | 2005-10-20 | Siemens Ag | Light source for imaging unit |
KR101055383B1 (en) | 2010-03-15 | 2011-08-08 | (주)포인트엔지니어링 | Optical element device and fabricating method thereof |
US20190182994A1 (en) | 2017-12-13 | 2019-06-13 | Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America | Head up display cooling |
DE102017130362A1 (en) | 2017-12-18 | 2019-07-11 | Valeo Schalter Und Sensoren Gmbh | Method for producing an electronic assembly, electronic assembly, image forming apparatus, head-up display and vehicle with head-up display |
Also Published As
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WO2022188932A1 (en) | 2022-09-15 |
DE112022001436A5 (en) | 2023-12-28 |
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R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
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R118 | Application deemed withdrawn due to claim for domestic priority |