EP1467144A2 - Lichterzeugende Vorrichtung mit Reflektor - Google Patents
Lichterzeugende Vorrichtung mit Reflektor Download PDFInfo
- Publication number
- EP1467144A2 EP1467144A2 EP04005058A EP04005058A EP1467144A2 EP 1467144 A2 EP1467144 A2 EP 1467144A2 EP 04005058 A EP04005058 A EP 04005058A EP 04005058 A EP04005058 A EP 04005058A EP 1467144 A2 EP1467144 A2 EP 1467144A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- light
- generating device
- heat dissipation
- improving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/03—Gas-tight or water-tight arrangements with provision for venting
-
- 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
-
- 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
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
Definitions
- the invention relates generally to lighting means, in particular, the invention relates to a light-generating device Device with reflector and cooling structure.
- the invention is therefore based on the object light-generating system, in particular a light-generating system To provide device, which is an improvement with regard to the problems mentioned above.
- This The task becomes surprisingly simple solved by the subject matter of the independent claims.
- Advantageous refinements and developments are also specified in the subclaims.
- the invention sees a light-generating Device in front of a reflector, as well as a device includes to improve heat dissipation from the reflector.
- a light-generating device in which the Device to improve heat dissipation with the Back of the reflector connected or arranged on this is.
- the back or outside of the reflector is one the illuminant or that provided for the illuminant Understand the side facing away from the reflector.
- the device to improve heat dissipation comprises a radiation absorbing surface.
- the device for improving the Heat dissipation a radiation absorbing coating comprise, it being particularly expedient if the Coating in the infrared range, especially in the spectral range Area of heat radiation absorbed.
- Such one Coating can also be done in a simple manner or not weakly absorbent materials of a reflector body, such as about a glass dome.
- a preferred further training provides that the Heat radiation absorbing coating on the outside of the reflector is arranged.
- the coating can entire outside or one or more sub-areas cover.
- one can be used for cooling intended area also include vortex generating structures.
- the structures can be at least one Area of the surface of the reflector may be arranged.
- a preferred embodiment of the invention provides that the vortex-generating structures on the outside of the reflector are arranged.
- Vortex generating structures Dimpel or depressions, which may be circular, for example can. These are easy to manufacture and ensure Flow around one equipped with such structures Surface with a cooling fluid due to the vortex formation for an effective mixing of cold and hot fluid layers and thus more effective heat exchange.
- the reflector can also be used with advantage self-cleaning surface. This prevents the accumulation or deposition of impurities among other things, can disadvantageously hinder heat dissipation. Self-cleaning properties can among other things also due to the vortex-forming structures mentioned above can be achieved, with a vortex formation Formation of flow dead zones and thus the deposition of contaminants such as dust is avoided.
- the light generating device comprises the device for Improve heat dissipation with the reflector connected heat sink, so as to increase the effective cooling surface enlarge.
- the heat sink can in particular also in the area of Connection to the reflector is adapted to the reflector Have shape to the heat conduction from the reflector in the To improve the heat sink.
- the device for Improve heat dissipation on the reflector especially arranged on the outside of the reflector thermally conductive layer comprises.
- This ensures one improved distribution and removal of the resulting Heat output.
- a reflector can be used be provided with a metallic coating.
- Such a coating also ensures improved heat dissipation for increased resistance to temperature changes because of the heat faster on the reflector body or parts of the Reflector body can be distributed and Temperature stresses in the reflector material can be avoided.
- the reflector is used is provided with a coating comprising two layers, wherein a first layer is radiation absorbing and a second layer arranged above the first layer is thermally conductive. In this way, a reflection of the Radiation avoided through the first layer and the Radiation power entered specifically in this layer then the second layer for a more even Temperature distribution along the coated surface provides.
- a coating comprising two layers, wherein a first layer is radiation absorbing and a second layer arranged above the first layer is thermally conductive.
- the device for improving heat dissipation can also advantageously a CVD and / or PVD coating of the Include reflector.
- This layer can in particular be a radiation-absorbing and / or heat-conducting layer include.
- CVD and PVD coatings can be large Variety of materials and also light as absorbent layers produce. For example, a silicon oxide layer can be used for this purpose with a high carbon content, especially with an amorphous one Carbon is deposited, the good one Has absorption properties.
- the CVD coating can also have one or more metal oxides, wherein under other oxides of the metals titanium, tantalum and niobium are.
- the process of PVD coating is also useful to deposit metallic layers, for example.
- the reflector can be the device for Improvement in heat dissipation is also advantageous with the Include metal foil in contact with reflector. This in Can bring in contact by gluing or Clamps between the reflector and another part respectively.
- the light-generating device preferably also has a Air cooling on to heat components of the facility to improve heat dissipation.
- the air cooling can of course also be part of the facility for Improve heat dissipation.
- the air cooling can for example include a fan and / or as Convection cooling can be designed.
- the light-generating device can itself be at least one Bulbs include or accordingly for the equipment be designed with a lamp.
- suitable Illuminants are, for example, ultra-high pressure lamps such as especially short-arc lamps, or halogen lamps.
- the device also results in particular from use of a cold light reflector, since a large part of the Heat radiation passes through the reflector and behind the reflector must be removed or otherwise behind surfaces lying strongly on the reflector.
- the inventive Device can also be equipped with a housing. This can happen especially when using ultra high pressure lamps
- the housing is useful as a splinter protection housing be designed.
- This can also be a housing also have at least one light-protected opening, through the cooling air can be supplied without light, which about through the reflector or through recesses in it reaches the housing body through the housing opening got outside.
- the device can also be a thermal Include connection to the reflector with thermal paste, or with the reflector over a thermal paste layer be connected to the reflector.
- thermal paste between the reflector and a heat sink or a heat-distributing metal foil.
- Good thermal contact can also be achieved with a springy and / or cup of the device adapted to the shape of the reflector to improve heat dissipation can be achieved, which hugs the reflector.
- plastics can be used for example at least one of the plastics polycarbonate, Polyetherimide, polymethyl methacrylate, cyclic olefin, Olefin copolymer, polyether sulfone contain.
- Composite materials can also be used for the reflector are used, such as a composite material one or more of the aforementioned plastics with one metallic material.
- the invention also provides a reflector to provide that with a facility for improvement the heat dissipation is equipped and especially for the use in a device according to the invention may be suitable.
- the device for improving the heat dissipation of the reflector according to the invention can according to one embodiment the invention a coating of at least one area include a surface of the reflector.
- a preferred one Further training provides that the coating on the Outside of the reflector is arranged.
- the coating can be beneficial radiation absorbing, especially heat radiation or be infrared absorbing.
- the device for improving heat dissipation can also surface-enlarging cooling structures of the reflector body, such as cooling fins or knobs to the Increase cooling capacity.
- Fig. 1 is a cross-sectional view through a Embodiment of a light-generating device according to the invention Device shown as a whole with the reference symbol 1 is designated.
- the light-generating device 1 comprises a reflector 2 with an inside 4 and an outside 6, and one Device for improving the heat dissipation from the reflector 2.
- the inside 4 is concavely curved, so that light is one Illuminant, which is in or in front of the curved Inside defined cavity is arranged by Reflection from the surface of the inside 4 is bundled.
- the reflector can be made of metal, glass, glass ceramic, or Be made of plastic, or a composite material of two or more of these materials.
- material for a plastic reflector or a reflector with a Composite material reflector bodies can in particular Plastics polycarbonate, polyetherimide, Polymethyl methacrylate, cyclic olefin, olefin copolymer, or polyether sulfone can be used.
- the is preferred Reflector 2 of the embodiment shown in Fig. 1 also designed as a cold light reflector.
- the illuminant 10 comprises in this embodiment, an ultra high pressure lamp whose Legs 101, 102 through cutouts 12 of the reflector 2 are led.
- the device is to improve heat dissipation with the back of the Connected reflector.
- the facility to improve the Heat dissipation comprises a coating 8 on the outside of the reflector 6.
- This coating is considered to be heat radiation absorbing Coating formed.
- This coating can, for example, by CVD coating of the reflector be produced, or also include a PVD coating. Through CVD and PVD coating can be done easily in particular also deposited multi-layer coatings be, for example, by coating the composition of the process gas is changed.
- Heat radiation which during operation of the device from Illuminant 10 is emitted, passes through the Reflector body and is then on the back or Outside 6 of the heat radiation absorbing Surface serving coating 8 absorbed. This also leads to prevent back reflection of the heat radiation is, so that a reduction in the coating 8 Heat radiation shares in the spectral distribution of the cone of light emitted occurs.
- the Coating 8 also serve for improved heat distribution, if the coating 8 comprises a thermally conductive layer. This not only leads to a targeted absorption of Radiant energy, which is then dissipated by layer 8 can be improved, but also among other things Resistance to temperature changes of the reflector 2.
- the device for improving heat dissipation includes the device for improving heat dissipation furthermore a heat sink 16.
- a heat sink 16 This is with an area the reflector outside 6, or the coating 8 connected to the reflector outside 6.
- the heat sink 16 has one in the area of connection to the reflector Receiving cup 32 for the reflector, the surface of which has a shape adapted to the reflector. With that the Contact surface between heat sink 16 and reflector 2 for more effective cooling increases.
- the invention air-cooling device as a component the device to improve heat dissipation from Reflector provided.
- This includes a fan 18, which sucks in an air stream and blows on the heat sink or generates an air flow flowing around the heat sink, by sucking air from the direction of the heat sink.
- the Heatsink has a channel 24 through which the air of the fan 18 and flow through openings 28 again can escape.
- Inner cooling fins 26 in the channel 24 provide additional heat exchange. The cooling is additional supported by outer cooling fins 30.
- the cooling fins 26 and 30 can also m different from in Fig. 1 schematically shown, along the flow direction of the Air flow generated by the fan 18 run. Can too the heat sink is solid, that is to say without a channel 24 which, among other things, reduces the manufacturing effort. On Such a heat sink is in a perspective view in Fig. 2 shown. In the cylindrical shown in Fig. 2 Heat sinks 16 run the cooling fins 30 along the Axis of symmetry of the body.
- the surface of the heat sink 16 can additionally be one or cover several surfaces with vortex-generating structures. Examples of such vortex generating structures are defined roughness or depressions.
- the light-generating device 1 comprises in FIG. 1 shown embodiment also a housing 20th This housing 20 can serve as splinter protection, what especially when using ultra high pressure lamps as Illuminant is advantageous.
- the housing 20 also has a variety of light-protected openings 22 on which the air exchange allow for cooling while preventing Light which, for example, through the openings 12 in the Reflector 2 enters the housing, comes out.
- To the openings 22 can be provided with suitable screens, that block direct light emission.
- Fig. 3 is a cross section of a section coated reflector 2 shown.
- the substrate or the Reflector body 3 is similar to that in FIG. 1 embodiment shown on the reflector outside 6 with provided a coating 8.
- the coating 8 is both radiation absorbing as well as highly heat conductive.
- To Layer 8 comprises a first layer 81, which on the Reflector body 3 is applied and one over the first Layer 81 applied second layer 82.
- the first layer 81 is radiation absorbing, which property especially for those emitted by the lamp Heat radiation shares apply.
- the radiation absorbing For example, by a high property Layer roughness and / or a sufficient proportion of amorphous carbon can be achieved in the layer.
- the second layer 81 arranged above is high thermally conductive.
- this layer 82 can be a suitable metal.
- the first layer 81 prevents that essential radiation components from the second layer 82 be reflected back and so for example with one Cold light reflector again make a spectral contribution can.
- Fig. 4 shows an embodiment of an inventive Reflector 2, which has a device for improving the Heat dissipation is equipped and also in one Device 1 according to the invention can be used, such as it is shown by way of example in FIG. 1.
- the reflector includes a reflector body 3 with a concavely curved Inside 4, which is the reflective surface of the Reflector 2 for the light emitted by a lamp forms, the inner surface 4, for example with a radiation reflective coating is equipped.
- This can be used as an interference filter or dielectric mirror be carried out, which is in the manner of a cold light reflector visible light reflects and longer-wave light can transmit.
- the device for improving heat dissipation includes this embodiment, surface-enlarging cooling structures of the reflector body 3 in the form of cooling fins 31 on the Outside 6 on.
- the cooling fins 31 extend at this embodiment, for example, along the Axis of symmetry of the reflector body 3. This configuration is advantageous, among other things, if an additional Air cooling with a fan that is used Airflow generated in the direction of the axis of symmetry. additionally the reflector 2 on the outside 6 also have vortex-generating structures around the Improve air mixing during cooling.
- the coating 8 can advantageous as the coating shown in Fig. 3 with a lower, radiation-absorbing layer 8 and one of these first layer 81 covering second layer 82, the second layer 82 is highly thermally conductive and the Temperature compensation serves.
- FIG. 5 is another embodiment of a reflector 2 according to the invention, or one light generating device 1 shown.
- the illuminant 10 in Integrated reflector 2.
- the illuminant can, for example, as shown, a halogen bulb or another one Ultra high pressure lamp.
- the reflector 2 is also like in the embodiments described above on his Outside 6 with a coating 8 as part of a Provided device to improve heat dissipation.
- the Coating 8 serves to absorb radiation and can also have heat-conducting properties.
- a heat-conductive metal foil 34 which with the Reflector 2, or with its coated Outside 6 is in contact as a further component of the Applied device to improve heat dissipation Metal foil 34 can be due to its flexibility and Fit the flexibility well to the shape of the reflector 2 and serves the better distribution of the heat output in particular on the outside of the reflector 6.
- FIG. 6 shows a further preferred embodiment of a reflector according to the invention 2.
- this embodiment includes the device for improving heat dissipation vortex generating structures in the form of dimples or Wells 36, which can be circular, for example and which are arranged on the outer surface 6 of the reflector.
- the recesses 36 can, for example, in a regular patterns, for example in the form of a hexagonal matrix on the outer surface 6 or a portion of the outer surface 6 may be arranged.
- the depressions ensure the flow around the Reflector with a cooling fluid, such as air in particular an intensive swirling of the fluid and thus for one improved heat exchange of the surface of the reflector 2 with the cooling fluid.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
- Fig. 1
- eine schematische Schnittdarstellung einer Ausführungsform einer erfindungsgemäßen lichterzeugenden Vorrichtung,
- Fig. 2
- eine Ausführungsform eines Kühlkörpers,
- Fig. 3
- einen Ausschnitt eines beschichteten Reflektors im Querschnitt,
- Fig. 4
- eine Ausführungsform eines erfindungsgemäßen Reflektors,
- Fig. 5
- eine weitere Ausführungsform eines erfindungsgemäßen Reflektors mit integriertem Leuchtmittel, und
- Fig. 6
- eine Ausführungsform eines erfindungsgemäßen Reflektors mit wirbelerzeugenden Strukturen.
- 1
- Lichterzeugende Vorrichtung
- 2
- Reflektor
- 3
- Reflektorkörper
- 4
- Innenseite von 2
- 6
- Außenseite von 2
- 8
- Wärmestrahlungs-absorbierende Beschichtung
- 10
- Leuchtmittel
- 12
- Aussparung in 2
- 14
- Wärmeleitpaste
- 16
- Kühlkörper
- 18
- Ventilator
- 20
- Gehäuse
- 22
- Lichtgeschützte Öffnung in 20
- 24
- Kanal in 16
- 26
- Innere Kühlrippen in 24
- 28
- Öffnungen zu 24
- 30
- äußere Kühlrippen von 16
- 31
- Kühlrippen von 2
- 32
- Aufnahmebecher in 16
- 34
- Metallfolie
- 36
- wirbelerzeugende Vertiefungen
- 81
- strahlungsabsorbierende Schicht von 8
- 82
- hoch wärmeleitende Schicht von 8
- 101,102
- Anschlußbeine von 10
Claims (34)
- Lichterzeugende Vorrichtung (1), welche einen Reflektor (2), sowie Einrichtung zur Verbesserung der Wärmeabfuhr vom Reflektor (2) umfaßt.
- Lichterzeugende Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet daß die Einrichtung zur Verbesserung der Wärmeabfuhr mit der Reflektor-Außenseite (6) verbunden oder an dieser angeordnet ist.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine strahlungsabsorbierende, insbesondere eine wärmestrahlungs-absorbierende Fläche umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine strahlungsabsorbierende, insbesondere eine wärmestrahlungs-absorbierende Beschichtung (8) umfaßt.
- Lichterzeugende Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, daß die wärmestrahlungs-absorbierende Beschichtung (8) auf der Reflektor-Außenseite (6) angeordnet oder aufgebracht ist.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine Fläche mit wirbelerzeugenden Strukturen umfaßt.
- Lichterzeugende Vorrichtung gemäß Anspruch 6, dadurch gekennzeichnet, daß die wirbelerzeugenden Strukturen Vertiefungen, beispielsweise kreisförmige Vertiefungen (36) umfassen.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr einen mit dem Reflektor (2) verbundenen Kühlkörper (16) umfaßt.
- Lichterzeugende Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, daß der Kühlkörper im Bereich der Verbindung mit dem Reflektor eine an den Reflektor angepaßte Form aufweist.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine auf dem Reflektor, insbesondere auf der Reflektor-Außenseite angeordnete wärmeleitende Schicht umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, gekennzeichnet durch eine Luftkühlung.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Luftkühlung einen Ventilator oder eine Konvektionskühlung umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, gekennzeichnet durch zumindest ein Leuchtmittel.
- Lichterzeugende Vorrichtung gemäß Anspruch 13, dadurch gekennzeichnet, daß das Leuchtmittel eine Ultrahochdruck-Lampe, insbesondere eine Kurzbogenlampe, oder eine Halogenlampe umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Reflektor einen Kaltlicht-Reflektor umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, gekennzeichnet durch ein Splitterschutz-Gehäuse.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, gekennzeichnet durch ein Gehäuse mit zumindest einer lichtgeschützten Öffnung.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine Wärmeleitpasten-Verbindung mit dem Reflektor umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr einen federnden oder an die Form des Reflektors angepaßten Becher umfaßt, welcher sich an den Reflektor (2) anschmiegt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine mit dem Reflektor (2) in Kontakt gebrachte Metallfolie (34) umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Reflektor (2) zumindest eines der Materialien Metall, Glas, Glaskeramik, Kunststoff umfaßt.
- Lichterzeugende Vorrichtung gemäß Anspruch 20, dadurch gekennzeichnet, daß der Reflektor (2) ein Material umfaßt, welches zumindest einen der Kunststoffe Polycarbonat, Polyetherimid, Polymethylmethacrylat, zyklisches Olefin, Olefincopolymer, Polyethersulfon enthält.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Reflektor (2) ein Verbundmaterial umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine CVD- oder PVD-Beschichtung des Reflektors (2) umfaßt.
- Lichterzeugende Vorrichtung gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Reflektor (2) mit einer selbstreinigenden Oberfläche ausgestattet ist.
- Reflektor (2) mit einer Einrichtung zur Verbesserung der Wärmeabfuhr, insbesondere für eine Vorrichtung gemäß einem der vorstehenden Ansprüche.
- Reflektor gemäß Anspruch 26, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr eine Beschichtung (8) zumindest eines Bereiches einer Fläche des Reflektors (2) umfaßt.
- Reflektor gemäß Anspruch 27, dadurch gekennzeichnet, daß die Beschichtung auf der Außenseite (6) des Reflektors aufgebracht ist.
- Reflektor gemäß Anspruch 27 oder 28, dadurch gekennzeichnet, daß die Beschichtung (8) strahlungsabsorbierend, insbesondere wärmestrahlungsabsorbierend ist.
- Reflektor gemäß einem der Ansprüche 27 bis 29, dadurch gekennzeichnet, daß die Beschichtung (8) eine hoch wärmeleitfähige Schicht umfaßt.
- Reflektor gemäß einem der Ansprüche 27bis 30, dadurch gekennzeichnet, daß die Beschichtung zwei Schichten (81, 82) umfaßt, wobei eine erste Schicht (81) strahlungsabsorbierend und eine zweite, über der ersten Schicht (81) angeordnete Schicht (82) hoch wärmeleitfähig ist.
- Reflektor gemäß einem der Ansprüche 26 bis 31, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr wirbelerzeugende Strukturen in zumindest einem Bereich der Oberfläche des Reflektors (2) umfaßt.
- Reflektor gemäß Anspruch 32, dadurch gekennzeichnet, daß die wirbelerzeugenden Strukturen Vertiefungen, beispielsweise kreisförmige Vertiefungen (36) umfassen.
- Reflektor gemäß einem der Ansprüche 26 bis 33, dadurch gekennzeichnet, daß die Einrichtung zur Verbesserung der Wärmeabfuhr oberflächenvergrößernde Kühlstrukturen des Reflektorkörpers (3), beispielsweise Kühlrippen (31) oder Noppen umfaßt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10316506A DE10316506A1 (de) | 2003-04-09 | 2003-04-09 | Lichterzeugende Vorrichtung mit Reflektor |
DE10316506 | 2003-04-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1467144A2 true EP1467144A2 (de) | 2004-10-13 |
EP1467144A3 EP1467144A3 (de) | 2007-07-18 |
EP1467144B1 EP1467144B1 (de) | 2014-11-26 |
Family
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Family Applications (1)
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EP04005058.5A Expired - Lifetime EP1467144B1 (de) | 2003-04-09 | 2004-03-04 | Lichterzeugende Vorrichtung mit Reflektor |
Country Status (5)
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---|---|
US (1) | US7244051B2 (de) |
EP (1) | EP1467144B1 (de) |
JP (1) | JP4386782B2 (de) |
CN (1) | CN100465779C (de) |
DE (1) | DE10316506A1 (de) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1940956A1 (de) | 2005-10-19 | 2008-07-09 | Bayer MaterialScience AG | Lichtstreuende folien sowie deren verwendung in flachbildschirmen |
CN101460896B (zh) * | 2006-06-07 | 2010-10-27 | 皇家飞利浦电子股份有限公司 | 带有反射镜和金属外壳的照明设备 |
WO2012044364A1 (en) * | 2010-09-30 | 2012-04-05 | GE Lighting Solutions, LLC | Lightweight heat sinks and led lamps employing same |
US8672516B2 (en) | 2010-09-30 | 2014-03-18 | GE Lighting Solutions, LLC | Lightweight heat sinks and LED lamps employing same |
CN110045569A (zh) * | 2018-01-15 | 2019-07-23 | 深圳光峰科技股份有限公司 | 散热系统及投影设备 |
CN110045569B (zh) * | 2018-01-15 | 2021-07-06 | 深圳光峰科技股份有限公司 | 散热系统及投影设备 |
Also Published As
Publication number | Publication date |
---|---|
EP1467144A3 (de) | 2007-07-18 |
JP2004311444A (ja) | 2004-11-04 |
DE10316506A1 (de) | 2004-11-18 |
US20040264197A1 (en) | 2004-12-30 |
CN1550870A (zh) | 2004-12-01 |
US7244051B2 (en) | 2007-07-17 |
JP4386782B2 (ja) | 2009-12-16 |
CN100465779C (zh) | 2009-03-04 |
EP1467144B1 (de) | 2014-11-26 |
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