EP3870892A1 - Lighting device - Google Patents
Lighting deviceInfo
- Publication number
- EP3870892A1 EP3870892A1 EP19794489.5A EP19794489A EP3870892A1 EP 3870892 A1 EP3870892 A1 EP 3870892A1 EP 19794489 A EP19794489 A EP 19794489A EP 3870892 A1 EP3870892 A1 EP 3870892A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- diffuser
- frame
- layer
- lighting device
- 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.)
- Pending
Links
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
- 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
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- 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
- 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
- F21V31/005—Sealing arrangements therefor
-
- 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 present invention relates to a lighting device with a diffuser.
- the invention relates to a lighting system with such a lighting device.
- Luminous devices of this type usually have at least one light-emitting diode or, particularly preferably, a plurality of light-emitting diodes for generating light which shines through the diffuser. The light shining through the diffuser is evened out and emitted into the room.
- the approach is followed to arrange the light-emitting diode or the light-emitting diodes favorably in relation to the diffuser in order to ensure a high luminous efficiency, that is to say efficiency of the lighting device.
- the lighting devices should be equipped as completely as possible and ready for connection in order to enable easy, fast and inexpensive installation.
- Such a lighting device should in particular be of simple construction in order to be able to reduce costs for the individual components, but also for assembly.
- the object of which is to provide a lighting device in which light is generated by at least one light-emitting diode which shines through a diffuser, the light leaving the diffuser through a light exit surface which has a high luminous efficiency and efficiency, and the structure of the lighting device is kept simple.
- a lighting device meets the requirements set and achieves the present object if it is provided that the lighting device comprises a diffuser and at least one light-emitting diode for generating light that shines through the diffuser, further a peripheral frame and a closure element , wherein the frame delimits a passage through which the light from the lighting device enters the surrounding space.
- a peripheral edge section of the diffuser is connected to the frame.
- the diffuser has a circumferential side surface, a light entry surface and at least one light exit surface, light that can be generated by the light-emitting diode for irradiation into the diffuser striking the light entry surface of the diffuser, and at least one means for equalizing the light radiated through the light entry surface of the diffuser and light emerging through the light exit surface of the diffuser is provided.
- the closure element comprises a peripheral edge area and a central area, the peripheral edge area being connected to a peripheral portion of the frame.
- the at least one light-emitting diode is connected to a support element fixed to the frame.
- the at least one light-emitting diode is connected to a support element fixed to the frame, the light-emitting device can be kept simple in construction, the costs for the individual components but also for assembly being able to be reduced.
- a plurality of light-emitting diodes can advantageously be connected to the support element fixed to the frame.
- the support element is fixed to a projection of the frame.
- the at least one light-emitting diode can be fastened in a simple and quick manner in the light-emitting device of the present invention and is securely received there.
- the support element has a multilayer structure, at least one first layer consisting of or containing a polymer material, and a second layer connected to the first layer being and / or containing a metal or a conductive one Is or contains polymeric material.
- Silver, gold, tin, zinc, aluminum, copper, titanium, chromium, magnesium, iron, steel, brass, bronze, their possible mixtures and alloys can be selected as the metal.
- the metal can be in the form of metal particles and / or metal threads and / or metal fibers.
- the second layer can have a conductive polymer material which contains metal particles and / or metal threads and / or metal fibers, the metal being selected from the group comprising silver, gold, tin, zinc, aluminum, Copper, titanium, chrome, magnesium, iron, steel, brass, bronze, their possible mixtures and alloys.
- the second layer can also contain a metal oxide, such as ITO (indium tin oxide) or ATO (antimony tin oxide).
- a metal oxide such as ITO (indium tin oxide) or ATO (antimony tin oxide).
- Suitable as the conductive polymer material is one which has powder and / or nanowires and / or nanoparticles made of metal, the metals mentioned above being usable for this.
- Doping a polymer material with a carbon modification such as, for example, graphene or carbon nanotubes, such as SWCNT or MWCNT or fullerenes or graphite, can also advantageously increase the conductivity of the polymer material.
- Conductive polymer materials that are intrinsically conductive can also be used, these are, for example, PEDOT or PEDOT: PSS or PANI or polypyrrole or Polthioohen and Polvanilin.
- the second layer can be applied to the first layer as a metal layer or as a printed conductor, or by a coating process, for example PVD, CVD, or by plasma coating processes.
- the conductive polymer material can in particular also be applied as a conductive lacquer or as a conductive ink.
- the second layer can have a layer thickness of 5 pm to 100 pm.
- the first layer can have a layer thickness of 5 pm to 1 mm.
- An adhesive layer for example an adhesive layer, can be arranged between the second layer and the first layer.
- Such a support element is particularly conveniently suitable for arranging a light-emitting diode and establishing an electrical connection to it.
- the support element is designed as a multilayer film, with a first layer, for example, of consists of biaxially oriented polypropylene or of polyethylene terephthalate or of polyethylene naphthalate and a second layer of aluminum connected to the first layer, which is structured in such a way that the light-emitting diode from a power source or from a supply line of a power source to the second layer thereof is powered.
- the second layer made of aluminum can be structured in such a way that conductor tracks are formed in order to supply the light-emitting diode with current.
- the conductor tracks and in particular also sections of aluminum between two conductor tracks can have a large surface area.
- the second layer supplies the light-emitting diode with a metal and / or a conductive polymer material.
- the second layer is designed to be reflective, at least in sections.
- the second layer can have a surface with a reflectance of> 50%, preferably of> 70%.
- a metal coating for example in the form of a vapor deposition (PVD) or a CuSn coating, is applied to the surface, or this is deposited in a galvanizing process.
- PVD vapor deposition
- CuSn coating a metal coating
- the conductor tracks and the sections of aluminum between two conductor tracks which can have a large surface area, can very advantageously reflect the light and guide it to the diffuser.
- the support element can have a stabilization layer, which is preferably arranged on the second layer, opposite the first layer.
- the stabilizing layer can be a layer made of polymer material and / or metal, a polymer material layer reinforced with fibers, for example glass and / or textile fibers, is preferred.
- the support element can be mechanically reinforced by the formation of the stabilization layer and can thus be designed, for example, to be more rigid. A reduced thermal expansion of the support element can also be achieved by this measure.
- a circumferential flat contact and / or a first circumferential seal is formed between a section of the diffuser and a section of the frame.
- an all-round adhesive is formed between a section of the diffuser and a section of the frame.
- Providing the formation of a circumferential flat contact and / or a first circumferential seal between a section of the diffuser and a section of the frame ensures that a media-tight connection is created at the contact point between the diffuser and the frame, so that neither substances from the lighting device tion to the outside into the environment, substances from the environment can still enter or penetrate into the lighting device at this point.
- a circumferential area contact and / or a second circumferential seal is formed between the edge region of the closure element and a through section of the frame.
- the seal which preferably consists of a plastic material or a rubber or rubber material, can advantageously prevent fluids from penetrating over the area between the closure element and the frame.
- the seal can be integrally connected to the closure element.
- EBA Acrylate copolymers
- EMA Acrylate copolymers
- the polyolefin copolymers can be selected from or comprise ethylene vinyl acetate or ethylene-acrylate copolymers, such as, for example, ethylene-ethyl acrylate or ethylene-butyl acrylate or ethylene-methyl acrylate copolymers or polyvinyl chloride, or polyamide, or acrylate resin, or acrylate copolymer (EBA, EMA) , or polyurethane, or fluorine-containing polyurethanes.
- ethylene vinyl acetate or ethylene-acrylate copolymers such as, for example, ethylene-ethyl acrylate or ethylene-butyl acrylate or ethylene-methyl acrylate copolymers or polyvinyl chloride, or polyamide, or acrylate resin, or acrylate copolymer (EBA, EMA) , or polyurethane, or fluorine-containing polyurethanes.
- the fluoropolymers and / or fluoropolymers with amino and / or imino and / or amido and / or epoxy and / or hydroxy and / or carboxylic acid and / or sulfonic acid and / or Modified methacrylic acid and / or maleic anhydride groups.
- the fluoropolymers and / or fluoropolymers can also be dehydrofluorinated fluoropolymers.
- the adhesive can also be an adhesive layer, this preferably comprises at least one binder selected from or comprising polyvinyl alcohol and / or polyvinyl butyral and / or polyvinyl pyrrolidone and / or polyethylene vinyl acetate copolymers and / or polyvinyl acetate and / or acrylates and / or methacrylates and / or urethanes and / or polyesters and / or polyethers and / or urethane acrylates and / or cyanomethyl acrylates and / or cyanoethyl acrylates and / or cyanomethyl methacrylates and / or cyanoethyl methacrylates and / or (meth) acrylic acid derivatives and / or polymethyl methacrylates and / or epoxy resins and / or silicone rubbers and / or silicone rubber copolymers and / or fluoropolymers and / or linear or branched vinyl hydrogen polysiloxanes and /
- the adhesive is in the form of an adhesive layer, this can be or form a thermally and / or chemically and / or radiation-curing system and / or a combination thereof.
- Chemically curing systems include polymerization reactions and / or polyaddition reactions and / or polycondensation reactions and / or hydrosilylation reactions and / or crosslinking reactions.
- Radiation-curing systems are, in particular, photochemically curing systems which cure under UV radiation and / or NIR radiation and / or electron beams and / or microwave beams.
- the closure element is integrally connected to the frame element by a plurality of integral connections.
- Each integral connection can e.g. be designed as a welding spot or welding body or in the form of an adhesive spot or adhesive body.
- Each integral connection can e.g. can be realized in that a corresponding resin or a gel or a dispersion or a polymer or a polymer composition (e.g. in the form of a "hot melt") e.g. is or is applied by a roller application technique or a screen printing technique or a digital printing technique or a 3D printing technique.
- the adhesive connections can in particular also be spaced apart from one another, where they are preferably evenly distributed in the region between the diffuser and the frame, along with the creation of a very stable connection.
- the lighting device according to the invention is particularly suitable for being used in so-called “clean rooms” in rooms in which there are high requirements regarding cleanliness and the limitation of particles distributed in the air. This measure also keeps unwanted media, for example aggressive and corrosive gases, away from unwanted intrusion into the interior of the lighting device.
- closure element and the frame or the frame and the diffuser are non-positively connected to one another.
- closure element and the frame or the frame and the diffuser are non-positively connected to one another creates a particularly stable lighting device.
- closure element and the support element can be connected by an adhesive.
- PEBAX or a fluorine homopolymer, or a fluorine copolymer, or a fluorine-containing one Polyurethane, or a silicone rubber, or a silicone-urethane copolymer or a silicone-polyurea copolymer, or a fluorine-containing silicone rubber, or a polyolefin homo- and / or polyolefin copolymer, or a cyclic polyolefin copolymer (COC, COP), or a poly-alpha-olefin copolymer, or a polyolefin elastomer, or an ionomer, or an amorphous poly-alpha-olefin, or an adhesion-modified es polyolefin or polyolefin copolymer, wherein adhesion-modified polyolefins are modified with maleic anhydride or glycidyl methacrylate, or a functionalized polypropylene or
- the polyolefin copolymers can be selected from or comprise ethylene vinyl acetate or ethylene-acrylate copolymers, such as, for example, ethylene-ethyl acrylate or ethylene-butyl acrylate or ethylene-methyl acrylate copolymers or polyvinyl chloride, or polyamide, or acrylate resin, or acrylate copolymer (EBA, EMA) , or polyurethane, or fluorine-containing polyurethanes.
- ethylene vinyl acetate or ethylene-acrylate copolymers such as, for example, ethylene-ethyl acrylate or ethylene-butyl acrylate or ethylene-methyl acrylate copolymers or polyvinyl chloride, or polyamide, or acrylate resin, or acrylate copolymer (EBA, EMA) , or polyurethane, or fluorine-containing polyurethanes.
- the fluoropolymers and / or fluoropolymers with amino and / or imino and / or amido and / or epoxy and / or hydroxy and / or carboxylic acid and / or sulfonic acid and / or modified methacrylic acid and / or maleic anhydride groups.
- the fluoropolymers and / or fluoropolymers can also be dehydrofluorinated fluoropolymers.
- the adhesive can also be an adhesive layer, this preferably comprises at least one binder selected from or comprising polyvinyl alcohol and / or polyvinyl butyral and / or polyvinyl pyrrolidone and / or polyethylene vinyl acetate copolymers and / or polyvinyl acetate and / or acrylates and / or methacrylates and / or urethanes and / or polyesters and / or polyethers and / or urethane acrylates and / or cyanomethyl acrylates and / or cyanoethyl acrylates and / or cyanomethyl methacrylates and / or cyanoethyl methacrylates and / or (meth) acrylic acid derivatives and / or polymethyl methacrylates and / or epoxy resins and / or silicone rubbers and / or silicone rubber copolymers and / or fluoropolymers and / or linear or branched vinyl hydrogen polysiloxanes and /
- the adhesive is in the form of an adhesive layer, this can be or form a thermally and / or chemically and / or radiation-curing system and / or a combination thereof.
- Chemically curing systems include polymerization reactions and / or polyaddition reactions and / or polycondensation reactions and / or hydrosilylation reactions and / or crosslinking reactions.
- Radiation-curing systems are, in particular, photochemically curing systems which cure under UV radiation and / or NIR radiation and / or electron beams and / or microwave beams.
- the closure element is integrally connected to the frame element by a plurality of integral connections.
- Each integral connection can be designed, for example, as a welding spot or welding body or in the form of an adhesive spot or adhesive body.
- Each integral connection can be realized, for example, by a corresponding resin or a gel or a dispersion or a polymer or a polymer composition (for example in the form of a "hot melt"), for example by means of a roller application technique or a screen printing technique or a digital printing technique or a 3D printing technique is or will be applied.
- the adhesive connections can in particular also be spaced apart from one another, where they are preferably evenly distributed in the region between the closure element and the frame, along with the creation of a very stable connection.
- This measure makes it possible in a simple manner to attach the lighting device according to the invention to a ceiling of a room or to a wall of a room, the lighting device then being fixed to the ceiling or to the wall either on the closure element or on the frame can take place.
- the frame and / or the closure element and / or the diffuser can be produced in a molding process, for example in an extrusion process or an injection molding process or a thermoforming process or a blowing process or a combination of the aforementioned processes.
- the closure element can be planar, or can have a 3d structure or deformations by means of a 3d printing method, or by deep drawing, or by pressing, wherein cavities can also be formed in particular, whereby the closure element is stabilized, which is the case with An attachment of the lighting device to the ceiling or the wall of a room, if this is done by means of the closure element, is particularly advantageous.
- the support element can be formed by deep drawing or another deformation technique.
- the support element can particularly preferably be three-dimensionally shaped at least in sections, in particular at its central region.
- the frame and / or the closure element and / or the diffuser and / or the support element can be produced using a generative production process, in particular in one piece, for example by a 3-D printing process.
- a three-dimensional model that can be read by data processing machines can advantageously be used for the production.
- the invention also encompasses a method for producing a three-dimensional model that is readable by data processing machines for use in a production method for a frame and / or a closure element and / or a diffuser and / or a support element.
- the method also includes, in particular, the input of data, which represent a frame and / or a closure element and / or a diffuser, into a data processing machine and the use of the data around a frame and / or a closure element and / or a diffuser and / or to represent a support element as a three-dimensional model, the three-dimensional model being suitable for use in the production of a frame and / or a closure element and / or a diffuser and / or a support element.
- Also included in the method is a technique in which the input data from one or more 3D scanners, which function either on contact or without contact, with the latter applying energy to a frame and / or a closure element and / or a diffuser and / or a support member is released and the reflected energy is received, and wherein a virtual three-dimensional model of a frame and / or a closure member and / or a diffuser and / or a support member is generated using computer-aided design software.
- the manufacturing process can be a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (Selective Heat Sintering - SHS), selective electron beam melting (Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM) or Solidify powder material using binder jetting.
- SLM selective laser melting
- SLS selective laser sintering
- SHS selective heat sintering
- SHS Selective Heat Sintering - SHS
- selective electron beam melting Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM
- Solidify powder material using binder jetting in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (Selective Heat Sintering - SHS), selective electron beam melting (Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM) or Solidify powder material
- the manufacturing process can be a generative free-space process, in particular build-up welding, wax deposition modeling (WDM), contour crafting, metal powder application process (MPA), plastic-powder application process, cold gas spraying, electron beam melting (Electron Beam Welding - EBW) or melt coating processes such as Fused Deposition Modeling (FDM) or Fused Filament Fabrication (FFF).
- the manufacturing process can be a generative liquid material process, in particular stereolithography (SLA), digital light processing (DLP), multi jet Modeling (MJM), Polyjet Modeling or Liquid Composite Molding (LCM).
- SLA stereolithography
- DLP digital light processing
- MJM multi jet Modeling
- LCM Liquid Composite Molding
- the manufacturing process can also include other generative layer building processes, in particular laminated object modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.
- LOM laminated object modeling
- 3D screen printing or light-controlled electrophoretic deposition.
- the closure element can particularly advantageously be a closure element which consists of a metallic material and / or a plastic material and / or of a mixed form of metallic material and plastic material.
- This metallic material can be selected from stainless steel, aluminum, magnesium, steel, copper, titanium and zinc.
- the metallic material can be used as thin metal sheet material, which is produced in a rolling process, possibly using a pressing technique.
- Homo- and / or copolymers and / or mixtures of homo- and / or copolymers are preferably suitable as the plastic material from which the closure element is formed.
- the plastic material can be non-cross-linked, partially cross-linked or fully cross-linked.
- the plastic material particularly preferably comprises polyamide and / or polyethylene terephthalate and / or polybutylene terephthalate and / or acrylate resin and / or acrylate copolymer (EBA, EMA) and / or polymethyl (meth) acrylate and / or
- POM polyacetal
- the plastic material can in particular contain fillers such as fire and flame retardant additives, pigments, glass fibers, carbon fibers, fibers from renewable raw materials, as well as glass bubbles, textile fabrics, fiber fabrics, wickerwork, reinforcing mesh, additives to increase thermal conductivity and other things.
- fillers such as fire and flame retardant additives, pigments, glass fibers, carbon fibers, fibers from renewable raw materials, as well as glass bubbles, textile fabrics, fiber fabrics, wickerwork, reinforcing mesh, additives to increase thermal conductivity and other things.
- the closure element can particularly preferably be a one-piece closure element made of a plastic material, which is preferably an injection-molded or extruded or deep-drawn or pressed or thermoformed closure element.
- the flat material connection between an edge region of the closure element and a passage section of the frame which is designed as a circumferential flat contact, can in particular be an adhesive connection on a thermal and / or chemical basis or a welded connection. If both the frame and the closure element consist of a plastic material, the integral connection can in particular also be a plastic welded connection.
- connection layer that connects flat and cohesively can e.g. 10 pm to 500 pm thick.
- the connection layer can e.g. be applied by screen printing, by means of an application nozzle, by roller application or by spraying.
- a coating provided for forming the connecting layer can already be present on the edge region of the closure element, it being possible for the coating to be prefabricated as a coextrusion layer or as a film laminate or as a co-injection molding layer when the closure element is manufactured.
- connection layer can in particular also be realized by an adhesive film or an adhesive tape.
- the object of the present invention to provide a lighting system is solved in claim 10.
- a lighting system with a lighting device as described above is improved over those of the prior art.
- FIG. 1 shows a schematic cross-sectional view of a section of a lighting device.
- FIG. 1 shows a schematic cross-sectional view of a section of a lighting device 100.
- the lighting device 100 has a frame 3.
- a closure element 4 is connected to the frame 3 of the lighting device 100 by forming a circumferential flat contact 12 and / or a second circumferential seal 13 between an edge region 4a of the closure element 4 and a section 3a of the frame 3.
- the frame 3 and the closure element 4 are firmly connected to one another in this way - in particular non-positively.
- the frame 3 delimits a passage 5 through which the light which emerges from the light exit surface 1d of the diffuser 1 reaches the surrounding space.
- a diffuser 1 is connected to the frame 3 of the lighting device 100 in that a circumferential flat contact 10 and / or a first circumferential seal 11 is formed between an edge section 1a of the diffuser 1 and a passage section 3b of the frame 3.
- the lighting device 100 according to the invention is completely encapsulated, so that it can be used in rooms in which there are high demands on the cleanliness and the limitation of particles distributed in the air, that is to say in so-called “clean rooms”.
- clean rooms In particular, in this way, nothing can get out of the interior of the lighting device 100 and likewise nothing can get into the interior of the lighting device 100.
- a light-emitting diode 2 is arranged on the support element 7. It goes without saying that a plurality of light-emitting diodes 2 can be arranged on the support element 7, depending on what light intensity is desired in the lighting device 100 of the present invention.
- the support element 7 is fixed on the frame 3.
- the support element 7 is fixed to a projection 3c of the frame 3.
- the projection 3c of the frame 3 extends into the interior of the lighting device 100.
- the fixing of the support element 7 to a projection 3c of the frame 3 can be done by an adhesive process and / or by a welding process and / or by a clamping process and / or through a rest process.
- the support element 7 has a first layer 8 and a second layer 9 connected to the first layer 8.
- the first layer 8 consists of a polymer material, preferably of a polyethylene terephthalate.
- the second layer 9 consists of a metal, preferably of aluminum.
- the second layer 9 made of aluminum is structured in such a way that conductor tracks are formed in order to supply the light-emitting diode 2 with current.
- the conductor tracks and in particular also sections of aluminum between two conductor tracks of the second layer 9 can have a large surface area.
- the support element 7 can have a stabilizing layer 20, which is preferably arranged on the second layer 9, opposite the first layer 8.
- the stabilizing layer 20 can be a layer made of polymer material and / or metal, preferably a polymer material layer reinforced with fibers, for example glass and / or textile fibers.
- a ballast 14 is arranged on the support element 7 and is connected to a cable 30 which is guided gas-tight through the frame 3. Due to the gas-tight passage of the cable 30 through the frame 3, gas along the cable 30 cannot penetrate from the outside into the interior of the lighting device 100 and gas cannot escape from the interior of the lighting device 100 to the outside.
- the cable 30, which has a plug device (not shown here) at its end remote from the lighting device 100, can supply the lighting device 100 with current by connecting the plug device to a counterpart of a voltage source. Further measures are then no longer necessary to start operation of the lighting device 100.
- An electronics unit 15, a first sensor, for example, is furthermore on the support element 7
- the electronics unit 15 can initiate or control complex switching processes of the lighting device 100, for example.
- the first sensor 16 and the second sensor 17 can monitor the safety of the lighting device and, for example, disconnect the lighting device 100 when the temperature rises due to a malfunction. The same can be triggered by the second sensor 17 if there is an undesired change in the parameters of the gas inside the lighting device 100.
- the communication element 18 can, for example, be used to network the lighting device 100 in a so-called “smart home” solution, in order to ensure the operation of the lighting device 100, for example, wirelessly or via information networks.
- the light emitted by the light-emitting diode 2 essentially reaches the light entry surface 1c of the diffuser 1 in a direct way.
- the diffuser 1 has means 6 for equalizing light entering the light entry surface 1c of the diffuser 1, which is emitted by the light-emitting diode 2 and leaving the diffuser 1 again after passing through it at the light exit surface 1d.
- Such means 6 can be particles in the diffuser 1 on which the light is scattered and / or surface structuring on the surface of the diffuser 1 on the light entry surface 1 c and / or on the light exit surface 1 d.
- such means 6 are shown by way of example in the diffuser 1 and on the light entry surface 1 c of the diffuser 1.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018106141.0U DE202018106141U1 (en) | 2018-10-26 | 2018-10-26 | lighting device |
PCT/EP2019/078816 WO2020083969A1 (en) | 2018-10-26 | 2019-10-23 | Lighting device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3870892A1 true EP3870892A1 (en) | 2021-09-01 |
Family
ID=68344828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19794489.5A Pending EP3870892A1 (en) | 2018-10-26 | 2019-10-23 | Lighting device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3870892A1 (en) |
DE (1) | DE202018106141U1 (en) |
WO (1) | WO2020083969A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020109359A1 (en) | 2020-04-03 | 2021-10-07 | HELLA GmbH & Co. KGaA | Lighting device and method for joining a lighting device |
EP3922908A1 (en) * | 2020-06-11 | 2021-12-15 | Signify Holding B.V. | Housing for luminaire |
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US6042243A (en) * | 1996-09-13 | 2000-03-28 | Exhibit & Display Center, Inc. | Modular light box |
DE102007043904A1 (en) * | 2007-09-14 | 2009-03-19 | Osram Gesellschaft mit beschränkter Haftung | Luminous device |
EP2294633A2 (en) * | 2008-06-06 | 2011-03-16 | Relume Technologies, Inc. | Integral heat sink and housing light emitting diode assembly |
US8408724B2 (en) * | 2008-12-26 | 2013-04-02 | Toshiba Lighting & Technology Corporation | Light source module and lighting apparatus |
DE202009016607U1 (en) * | 2009-12-07 | 2011-04-14 | Ivl Lammert Trading Gmbh & Co. Kg | lighting device |
DE202011051669U1 (en) * | 2011-10-19 | 2013-01-21 | Zumtobel Lighting Gmbh | lamp |
DE102012207540A1 (en) * | 2012-05-07 | 2013-11-07 | Hartmut S. Engel | lamp |
CN205592726U (en) * | 2016-04-27 | 2016-09-21 | 深圳市卡能光电科技有限公司 | Line lamp and section bar thereof |
DE202017103332U1 (en) * | 2017-06-02 | 2018-09-05 | Rehau Ag + Co | lighting device |
-
2018
- 2018-10-26 DE DE202018106141.0U patent/DE202018106141U1/en active Active
-
2019
- 2019-10-23 EP EP19794489.5A patent/EP3870892A1/en active Pending
- 2019-10-23 WO PCT/EP2019/078816 patent/WO2020083969A1/en unknown
Also Published As
Publication number | Publication date |
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DE202018106141U1 (en) | 2020-01-28 |
WO2020083969A1 (en) | 2020-04-30 |
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