EP3686489B1 - Lampe avec une tôle de support évacuant la chaleur - Google Patents

Lampe avec une tôle de support évacuant la chaleur Download PDF

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Publication number
EP3686489B1
EP3686489B1 EP19216779.9A EP19216779A EP3686489B1 EP 3686489 B1 EP3686489 B1 EP 3686489B1 EP 19216779 A EP19216779 A EP 19216779A EP 3686489 B1 EP3686489 B1 EP 3686489B1
Authority
EP
European Patent Office
Prior art keywords
housing
heatsink
web
longitudinal axis
led unit
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.)
Active
Application number
EP19216779.9A
Other languages
German (de)
English (en)
Other versions
EP3686489A1 (fr
Inventor
Damiano Duerr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3686489A1 publication Critical patent/EP3686489A1/fr
Application granted granted Critical
Publication of EP3686489B1 publication Critical patent/EP3686489B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lamp according to the preamble of claim 1.
  • a lamp which uses LEDs (light emitting diodes) as light sources.
  • LEDs light emitting diodes
  • the entire housing is designed in the manner of a heat sink, with cooling fins.
  • LED unit can be found in the data sheet, which was available on January 9, 2019 at the Internet address https://www.vossloh-schwabe.com/uploads/tx sbdownloader / LED-Line-SMD-Kit 3R-G DE.pdf known, each comprising a plurality of LEDs.
  • the LED unit is assigned an optical unit which influences the light emitted by the LEDs.
  • Tub lights for fluorescent tubes are also known, with reference to the example US 7 083 308 B2 is referred.
  • the housing is designed like a trough, wherein it extends along a longitudinal axis, wherein it has a U-shaped cross-sectional shape with a base and two U-legs in a central region with respect to the longitudinal axis, the heat sink with a constant Cross-sectional shape extends along the longitudinal axis, wherein it has a central section which is arranged transversely to the longitudinal axis between two lateral sections, the central section forming a substantially flat contact surface facing away from the housing, the LED unit being fastened to the contact surface is, wherein the lateral sections each have at least one first web which is aligned essentially perpendicular to the contact surface, wherein it is formed in one piece with the central section, wherein the first webs each form a first free end of the heat sink which points towards the housing, the U-legs of the housing each having a second free end which points towards the heat sink, wherein it rests against an associated first free end, the LED
  • a lamp which comprises an equipment carrier which is designed as a bent sheet metal part. On the side edges pointing transversely to the longitudinal direction, the device carrier has bends which serve for stiffening.
  • the lamp according to the invention can be used as a replacement for the known tub lights, which have essentially the same structural dimensions as a known tub light.
  • the lamp according to the invention is extremely simple. In addition to the electronic and lighting components available on the market, it only includes two other components, namely the housing and the heat sink. These two parts are designed to be particularly material-saving and thus inexpensive.
  • the heat sink can be attached to the housing in a particularly simple manner, preferably solely by means of two screws. Nevertheless, the entire luminaire is inherently stable. In particular, no deformation of the heat sink due to its own weight can be observed.
  • the two lateral sections each comprise a second web which is oriented perpendicular to the contact surface, it being arranged between the associated first web and the contact surface, the second web directly adjoining the contact surface.
  • the second web is preferably formed in one piece with the first web and the central section. It also serves to increase the bending stiffness of the heat sink.
  • the second web also ensures that the lateral sections of the heat sink encompass the LED and the optics unit in a U-shape, with the first free ends of the first webs pointing towards the housing at the same time.
  • the first and the associated second web are connected to one another in one piece via a connecting section, so that they together form a U-shape.
  • the heat sink can be implemented as a bent sheet metal part in a cost-effective manner.
  • the sheet metal is preferably bent along a line parallel to the longitudinal axis.
  • the heat sink is preferably made of aluminum. It is preferably formed by several bends from a flat plate of constant thickness. It is also conceivable to manufacture the heat sink using an extrusion process.
  • the connecting section is preferably arranged approximately in one plane with a light-emitting surface of the optics unit, and it is most preferably set back somewhat.
  • the U-shaped cross-sectional shape of the housing is covered with an end plate at both ends of the housing pointing away from one another in the direction of the longitudinal axis, the heat sink being attached exclusively to the two end plates.
  • the end plates are preferably formed integrally with the remainder of the housing.
  • the housing can be made by bending deformation from a flat plate of constant thickness, it being provided with a bend on each of its two edges facing away from each other transversely to the longitudinal axis, which forms a first U-leg, with it being on both of its edges with respect to the longitudinal axis ends pointing away from one another are each provided with a bend which forms an end plate, the end plates adjoining both U-legs essentially without a gap.
  • the end plates are preferably firmly connected to the U-legs by means of blind rivets.
  • bent-over fastening tabs are provided in one piece on the end plates.
  • the housing is preferably made of sheet metal. It exists preferably made of steel, which is most preferably painted.
  • the housing can also be made of plastic by injection molding.
  • the housing is therefore designed similar to the housing of a known tub light.
  • the unit consisting of heat sink, LED unit and optics unit can be attached to the housing in a similar way to the cover of a known diffuser light. Because of the high rigidity of the structural unit mentioned, only very few fastening elements are required for this, preferably only two.
  • the housing preferably has a constant cross-sectional shape in the central area.
  • the first web serves primarily to increase the second-degree moment of area of the heat sink with respect to the longitudinal axis.
  • the entire heat sink is preferably designed in one piece.
  • the optics unit can be composed of several optics sub-units which are assigned to different sections of the LED unit. The parts of the optics unit are preferably attached to the LED unit and / or the heat sink.
  • the LED unit can be composed of several assemblies, it preferably comprising a single assembly. The assemblies mentioned are preferably attached directly to the heat sink.
  • the U-legs are preferably aligned perpendicular to the base.
  • the lateral sections of the heat sink are preferably designed mirror-symmetrically to one another.
  • the middle section of the heat sink is preferably designed in the form of a flat plate with a constant thickness.
  • the heat sink is preferably made from sheet metal.
  • the first and / or the second free end preferably run parallel to the longitudinal axis.
  • the first free ends preferably lie laterally against the respectively assigned second free end.
  • the first free ends of the heat sink and the second free ends of the first U-legs are preferably flat in the area of the abutment mentioned.
  • the at least one optics unit is preferably detachably connected to the LED unit, the parts mentioned being most preferably screwed together with the heat sink.
  • the cross-sectional shape of the cooling body has an essentially constant thickness everywhere.
  • the second free ends of the U-legs are each provided with a bead, on which an associated first free end of the cooling body rests in such a way that the surfaces of the cooling body and the first U-leg facing the environment are in there an escape are arranged. This prevents dirt and / or moisture from collecting at the corresponding joint.
  • the heat sink is attached to the housing exclusively at its two ends pointing away from one another with respect to the longitudinal axis.
  • the heat sink is preferably screwed to the housing there.
  • Fastening tabs which are bent over at right angles are preferably provided in one piece on the heat sink, which are directly adjacent to the central section.
  • a separate contact washer is preferably arranged between the aforementioned fastening tabs and the housing, which securely establishes an electrically conductive contact between the housing and the heat sink.
  • the contact disk is preferably penetrated by a screw bolt, which also penetrates the fastening tab.
  • the housing together with the heat sink, encloses a substantially closed cavity, a power supply unit to which the LED unit is electrically connected being arranged in the cavity.
  • the power supply unit is preferably attached to the first base of the housing.
  • the power supply unit is preferably designed in the manner of a constant current driver.
  • the LEDs which are preferably connected in series, are consequently all supplied with a fixed, predetermined current, the voltage at the individual LEDs being set accordingly.
  • the heat sink is made of aluminum, the housing being made of steel or plastic.
  • a heat sink made of aluminum dissipates the waste heat from the LEDs particularly well.
  • the proposed materials for the housing are particularly inexpensive.
  • the LED unit comprises a circuit board on which a plurality of separate LEDs are distributed, the circuit board being attached to the middle section of the heat sink, the optics unit each having a funnel-like reflector in the area of the LEDs which is covered by a transparent or translucent material.
  • Said material is preferably a plastic, most preferably polymethyl methacrylate (PMMA; also called acrylic glass).
  • PMMA polymethyl methacrylate
  • the circuit board and / or the optics unit is preferably screwed to the heat sink.
  • the LEDs are preferably arranged in a grid-like manner on the board.
  • Fig. 1 shows an exploded view of a lamp 10 according to the invention.
  • the lamp 10 is shown in a position in which the housing 40 is down. This position is advantageous during the assembly of the lamp 10.
  • the housing 40 is typically arranged at the top, it being fastened, for example, to the basic structure of an assembly workstation in order to illuminate a work area.
  • the housing 40 is designed in the form of a bent sheet metal part which is made from sheet steel. But it can also be injection molded from plastic. It is also conceivable that the housing has a base body made of an extruded aluminum profile, the end plates 45 being designed as separate parts which are firmly connected to the base body.
  • the housing 40 is designed like a trough. In a central region it extends with a constant cross-sectional shape along a longitudinal axis 11. The central region takes up almost the entire length of the housing 40. At the two ends of the housing 40 pointing away from one another in the direction of the longitudinal axis, an end plate 45 is provided, which is oriented perpendicular to the longitudinal axis 11. Said cross-sectional shape of the housing 40 is U-shaped with a base (No. 41 in Fig. 2 ) and two U-legs (No. 42 in Fig. 2 ) educated.
  • the housing 40 is preferably designed as a bent sheet metal part.
  • the blank is accordingly a flat plate of constant thickness, the border of which is cut to size in a common manner, for example by means of punching or laser cutting.
  • the U-legs and the end plate 45 are each formed by an associated 90 ° bend.
  • the end plates 45 are preferably each firmly connected to the two U-legs by means of blind rivets 47.
  • a bent fastening tab 46 is preferably provided in one piece on the end plate 45.
  • a power supply unit 60 is fastened, in particular screwed, to the base of the U-shape.
  • the power supply unit 60 can be connected to the 230V alternating current network via the connection cable 61 which is led to the outside. It is preferably designed as a constant current driver, which generates a direct current suitable for operating the LEDs 51 with a predetermined current strength from the alternating mains voltage.
  • a heat sink 20 is also provided, which consists of aluminum, and is preferably designed as a bent sheet metal part.
  • the heat sink 20 forms a flat contact surface 23 which extends parallel to the longitudinal axis 11.
  • An LED unit 50 rests directly on the contact surface 23 facing away from the housing 40, so that the waste heat generated there in the LEDs 51 (light emmitting diodes) can be given off to the environment with a low thermal resistance.
  • the LED unit 50 is covered by an optical unit 70.
  • the optics unit 70 is preferably designed in such a way that the point-like light emitted by the LEDs 51 is uniformly distributed in the room without the users of the room being dazzled by the very bright LEDs 51 when they look directly at the luminaire 10.
  • the optics unit 70 is fastened together with the LED unit 50 to the heat sink 20 by means of screw bolts 73.
  • the optics unit 70 comprises two optics subunits 72 which are identical to one another. Depending on the length of the luminaire 10, a suitable number of optics subunits 72 is selected.
  • the LED unit 50 comprises a single circuit board 52, which is provided with a multiplicity of LEDs 51 arranged in a grid-like manner. The LEDs are preferably connected in series, any mixed forms of series and parallel connection being conceivable.
  • the board is provided with two connection sockets 54. One connection socket 54 is electrically connected to the power supply unit 60 via the first connecting cable 53.
  • connection socket 54 is short-circuited with a second connection cable 55.
  • LED units can be connected to one opposite Fig. 1 to realize longer luminaires.
  • the optical units 70 are closed at the end with separate end plates 75.
  • the heat sink 20 is fixedly connected to the housing 40 exclusively at its ends pointing away from one another in the direction of the longitudinal axis 11.
  • a fastening tab 28 is provided there in one piece on the heat sink 20, by means of which it is screwed to an associated end plate 45 of the housing 40.
  • a contact disk 29 is located between the fastening tab 28 and the end plate 45 arranged, via which a reliable electrical connection between housing 40 and heat sink 20 is established.
  • the heat sink rests exclusively on the housing 40 in a frictionally engaged manner, it even being possible within the scope of the present invention to dispense with a locking engagement which is difficult to produce.
  • Fig. 2 shows a cross section of the lamp 10 according to Fig. 1 .
  • the heat sink 20 comprises a central section 21, which is arranged transversely to the longitudinal axis between two lateral sections 22.
  • the middle section 21 is defined by the flat contact surface 23 to which the LED unit 50 and the optics unit 70 are attached.
  • the contact surface 23 points away from the housing 40 so that the light from the LEDs 51 is emitted to the outside.
  • the two lateral sections 22 serve to stiffen the heat sink 20 against bending deformation. They are therefore made significantly higher than the central section 21 perpendicular to the contact surface 23. As a result, the lateral sections 22 have a considerably higher second-degree moment of area than the central section 21.
  • the two lateral sections 22 and the contact surface hold the LED -Unit 50 and the optics unit in a U-shape, so that overall a compact and rigid structural unit results, which can be attached to the housing 40 very easily and quickly. Despite the only two fastening points at the end, no noticeable bending deformation due to the weight of the assembly can be detected on this assembly.
  • the lateral sections 22 each comprise a first and a second web 25; 26, which are aligned perpendicular to the contact surface 23.
  • the two webs 25; 26 are integrally connected to one another via a connecting section 27, which is aligned essentially parallel to the contact surface 23, so that a U-shape results.
  • the second web 26 is connected in one piece to the middle section 21, so that it is directly opposite the optics unit 70 laterally.
  • the first web 25 has a first free end 24 which rests from the outside against a second free end 43 of an associated U-leg 42 of the base body 40.
  • the second free end 43 is provided with a bead 44 or provided a recess, so that the outer surfaces of heat sink 20 and housing 40 are arranged in alignment in the area of mutual contact.
  • the optics unit 70 comprises a funnel-like reflector 71 for each LED 51.
  • a plate-like cover 76 made of transparent or translucent material is also provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (7)

  1. Lampe (10) pourvue d'une unité à LED (50), d'au moins une unité à optique (70), d'un dissipateur thermique (20) et d'un boîtier (40), l'unité à LED (50) comprenant une pluralité de LED séparées (51), ladite unité à LED étant fixée au dissipateur thermique (20) de telle manière que la chaleur perdue des LED (51) puisse être dissipée au moins indirectement dans l'environnement par le biais du dissipateur thermique (20), l'unité à optique (70) étant reliée à l'unité à LED (50) de manière à influer sur la lumière qui peut être émise par les LED (51), le boîtier (40) étant conçu comme une cuve, ledit boîtier s'étendant suivant un axe longitudinal (11), ledit boîtier ayant une forme de U en coupe transversale pourvue d'une base (41) et de deux branches (42) dans une région centrale par rapport à l'axe longitudinal (11), le dissipateur thermique (20) s'étendant avec une forme constante en coupe transversale suivant l'axe longitudinal (11), ledit dispositif thermique comportant une portion centrale (21) qui est disposée entre deux portions latérales (22) transversalement à l'axe longitudinal, la portion centrale (21) formant une surface d'appui (23) sensiblement plane qui est dirigée à l'opposé du boîtier (40), l'unité à LED (50) étant fixée à la surface d'appui (23), les portions latérales (22) comportant chacune au moins une première nervure (25) qui est orientée sensiblement perpendiculairement à la surface d'appui, ladite nervure étant formée d'une seule pièce avec la portion centrale (21), les premières nervures (25) formant chacune une première extrémité libre (24) du dissipateur thermique (20) qui est dirigée vers le boîtier (40), les branches de U (42) du boîtier comportant chacune une deuxième extrémité libre (43) qui est dirigée vers le dissipateur thermique (20), ladite deuxième extrémité libre venant en appui sur une première extrémité libre (24) associée, l'unité à LED (50) et/ou l'au moins une unité à optique (70) étant entourée en forme de U par les deux portions latérales (22) et la portion centrale (21),
    caractérisée en ce que les deux portions latérales (22) comprennent chacune une deuxième nervure (26) qui est orientée perpendiculairement à la surface d'appui (23), ladite deuxième nervure étant disposée entre la première nervure associée (25) et la surface d'appui (23), la deuxième nervure (26) étant directement adjacente à la surface d'appui (23), la première nervure et la deuxième nervure associée (25 ; 26) étant reliées d'une seule pièce l'une à l'autre par une portion de liaison (27) de sorte qu'elles forment conjointement un U, la forme en U en coupe transversale du boîtier (40) étant recouverte d'une plaque d'extrémité (45) aux deux extrémités du boîtier (40) qui sont dirigées à l'opposé l'une de l'autre dans la direction de l'axe longitudinal (11), le dissipateur thermique (20) étant fixé exclusivement aux deux plaques d'extrémité (45).
  2. Lampe selon la revendication 1,
    la forme en coupe transversale du dissipateur thermique (20) ayant une épaisseur sensiblement constante partout.
  3. Lampe selon l'une des revendications précédentes,
    les deuxièmes extrémités libres (43) des branches de U (42) étant chacune pourvues d'un collet (44) sur lequel une première extrémité libre associée (24) du dissipateur thermique (20) vient en appui de telle manière que les surfaces, dirigées vers l'environnement, du dissipateur thermique (20) et de la première branche de U (42) soient disposées en alignement.
  4. Lampe selon l'une des revendications précédentes,
    le dissipateur thermique (20) étant fixé, exclusivement à ses deux extrémités opposées l'une à l'autre par rapport à l'axe longitudinal (11), au boîtier (40).
  5. Lampe selon l'une des revendications précédentes,
    le boîtier (40) enfermant conjointement avec le dissipateur thermique (20) une cavité (12) sensiblement fermée, une unité d'alimentation en courant (60), à laquelle l'unité à LED (50) est reliée électriquement, étant disposée dans la cavité (12).
  6. Lampe selon l'une des revendications précédentes,
    le dissipateur thermique (20) étant en aluminium, le boîtier (40) étant en acier ou en matière synthétique.
  7. Lampe selon l'une des revendications précédentes,
    l'unité à LED (50) comprenant une carte de circuit imprimé (52) sur laquelle un grand nombre de LED séparées (51) sont disposées de manière répartie, la carte de circuit imprimé (52) étant fixée à la portion centrale du dissipateur thermique (20), l'unité à optique (70) comportant au niveau de chacune des LED (51) un réflecteur en forme d'entonnoir (71) qui est recouvert d'un matériau transparent ou translucide.
EP19216779.9A 2019-01-23 2019-12-17 Lampe avec une tôle de support évacuant la chaleur Active EP3686489B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019200779.1A DE102019200779A1 (de) 2019-01-23 2019-01-23 Leuchte mit tragendem Kühlblech

Publications (2)

Publication Number Publication Date
EP3686489A1 EP3686489A1 (fr) 2020-07-29
EP3686489B1 true EP3686489B1 (fr) 2021-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19216779.9A Active EP3686489B1 (fr) 2019-01-23 2019-12-17 Lampe avec une tôle de support évacuant la chaleur

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EP (1) EP3686489B1 (fr)
DE (1) DE102019200779A1 (fr)
ES (1) ES2901719T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7198387B1 (en) 2003-12-18 2007-04-03 B/E Aerospace, Inc. Light fixture for an LED-based aircraft lighting system
CA2554863C (fr) * 2004-01-28 2012-07-10 Tir Systems Ltd. Luminaire directement visible
US7083308B2 (en) 2004-03-19 2006-08-01 Hubbell Incorporated Structural reinforcing bracket for a luminaire housing
CN102042513A (zh) * 2009-10-15 2011-05-04 富准精密工业(深圳)有限公司 发光二极管灯管
DE102012001382B4 (de) * 2012-01-24 2013-10-24 Diehl Aerospace Gmbh Leuchtvorrichtung
DE102016104084A1 (de) * 2016-03-07 2017-09-07 Insta Gmbh Leuchtensystem
DE102017203203A1 (de) * 2017-02-28 2018-08-30 Zumtobel Lighting Gmbh Geräteträger für Leuchte

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Publication number Publication date
DE102019200779A1 (de) 2020-07-23
EP3686489A1 (fr) 2020-07-29
ES2901719T3 (es) 2022-03-23

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