EP2993393B1 - Beleuchtungsvorrichtung - Google Patents

Beleuchtungsvorrichtung Download PDF

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Publication number
EP2993393B1
EP2993393B1 EP15183240.9A EP15183240A EP2993393B1 EP 2993393 B1 EP2993393 B1 EP 2993393B1 EP 15183240 A EP15183240 A EP 15183240A EP 2993393 B1 EP2993393 B1 EP 2993393B1
Authority
EP
European Patent Office
Prior art keywords
lighting
fact
support body
stretch
lighting apparatus
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
EP15183240.9A
Other languages
English (en)
French (fr)
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EP2993393A1 (de
Inventor
Mario Bellu'
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.)
Vignal Cea Sa
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Vignal CEA SA
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
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Publication of EP2993393A1 publication Critical patent/EP2993393A1/de
Application granted granted Critical
Publication of EP2993393B1 publication Critical patent/EP2993393B1/de
Active legal-status Critical Current
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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
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • F21V21/28—Pivoted arms adjustable in more than one plane
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • 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
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • 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
    • F21V7/04—Optical design
    • F21V7/048—Optical design with facets structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • 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 apparatus, particularly to a removable lighting apparatus.
  • Lighting apparatus are used, such as removable spotlights, to illuminate indoor and outdoor environments in special circumstances requiring temporary and/or exceptional illumination of areas which are not normally illuminated.
  • Known spotlights generally have a metal support body similar to a cap inside which one or more light sources and the electrical circuits thereof are placed. These spotlights have coupling devices which allow to be fixed in a removable manner to walls or means of transport to be used in several environments and for different purposes.
  • spotlights are used which have one or more traditional light sources inside, such as incandescent lamps, gas discharge lamps and the like.
  • the operation of these apparatus has been improved by making LED spotlights, much more efficient and long-lasting than traditional light sources.
  • One drawback is related to the temperature these apparatus can reach during operation.
  • LEDs in fact, are very sensitive to heat and excessive operating temperatures lead to a shortening of lifespan or to the destruction of the LED itself.
  • the support body must be designed in such a way as to ensure a sufficient heat dissipation.
  • Known spotlights are designed in such a way as to have one or more light sources of the same type and arranged to illuminate the environment according to a precise mode of use.
  • the document US 2013/0215611A illustrates a lighting system and method.
  • the lighting system includes a hybrid canopy that can provide an optimum light beam shape for a number of different lighting applications.
  • the hybrid canopy is equipped with lighting clusters of different types, thereby enabling a broader beam output.
  • a drawback of the lighting system described in the document US 2013/0215611 is that it has attaching means that allow a difficult attachment of the lighting system to a bearing structure.
  • the main aim of the present invention is to provide a lighting apparatus that allows to have different lighting modes and to switch from one mode to another in a simple and fast manner.
  • Another object of the present invention is to provide an apparatus that allows to overcome the mentioned drawbacks of the prior art within the ambit of a simple, rational, easy, effective to use and affordable solution.
  • reference number 1 globally indicates a lighting apparatus.
  • the lighting apparatus 1 has a support body 2 and at least a lighting device 3a, 3b associated with the support body 2.
  • the apparatus 1 has a plurality of lighting devices 3a, 3b, in particular, in the present embodiment, the number of lighting devices 3a, 3b is equal to six. Embodiments are not ruled out wherein the number of such devices is greater or lesser than 6.
  • a lighting device 3a, 3b consists of an emitting element 4a, 4b and a lighting appliance 5a, 5b.
  • the emitting element 4a, 4b is able to emit light radiation and is composed of, e.g., a LED light, but alternative embodiments are not ruled out.
  • the lighting appliance 5a, 5b is advantageously a casing able to define and direct the radiation emitted by the emitting element 4a, 4b.
  • the lighting appliance 5a, 5b is a casing the surface of which draws a paraboloid at the apex of which is placed an emitting element 4a, 4b and the axis of symmetry of which comes out in a direction orthogonal to the plane on which the emitting elements 4a, 4b lie.
  • Embodiments cannot be ruled out wherein the lighting appliance 5a, 5b has alternative forms.
  • At least a first lighting device 3a is composed of a first emitting element 4a and a first lighting appliance 5a.
  • the first lighting appliance 5a is associated with the first emitting element 4a and has a first inner polygonal surface 6a able to diffuse light radiation.
  • the first inner surface 6a is composed of a set of quadrangular polygons which are positioned side by side to each other.
  • the polygons are elements coated with a reflective material and are directed so as to deflect the incident radiation towards the other polygons which, in turn, further reflect the incident radiation by amplifying and diffusing the light radiation emitted by the LED.
  • the light beam exiting from the first lighting appliance 5a therefore, is a beam of diffused light, suitable to illuminate large areas.
  • the apparatus 1 also has at least a second lighting device 3b comprising a second emitting element 4b able to emit light radiation and a second lighting appliance 5b.
  • the second lighting appliance 5b is also associated with the second emitting element 4b, but in this case has a second inner surface 6b substantially smooth and able to direct the light radiation produced by the LED.
  • the light beam exiting from the second lighting appliance 5b is a well-defined light beam, suitable to illuminate circumscribed and limited areas in a substantially punctual manner.
  • two out of six lighting devices 3a, 3b present in the apparatus 1 are first lighting devices 3a and are arranged in a substantially peripheral position, so as to maximize the diffused light produced.
  • the other four devices are second lighting devices 3b and are arranged in a substantially central position, so as to obtain a well-defined single light beam which can be directed towards a point to illuminate.
  • the first and second lighting appliances 5a, 5b are made in a single body piece.
  • the single body piece has a substantially plate-shaped element 7 comprising convexities defining the lighting appliances 5a, 5b.
  • convexities are the outer surfaces of the lighting appliances 5a, 5b and are extruded from the substantially plate-shaped element 7.
  • the substantially plate-shaped element 7 has a shape and dimensions such as to be accommodated inside the support body 2.
  • the support body 2 comprises a cap element 8 able to house the first and second lighting devices 3a, 3b and related electrical components.
  • the cap element 8 has a bottom wall 9 and a plurality of side walls 10 which, besides defining the perimeter edge of the support body 2, also define the depth of the cap element 8.
  • the cap element 8 is closed on top by a transparent element 11, conveniently glass, with the substantially plate-shaped element 7 inserted to measure inside said cap.
  • the transparent element 11 protects the internal parts of the apparatus 1 from external agents such as water, dust, etc..
  • a printed circuit board 12 on which the emitting elements 4a, 4b are positioned.
  • the printed circuit board 12 is also insertable to measure in the cap element 8 and is fixed to the bottom wall 9 by means of connecting elements 13, e.g. star screws or the like.
  • the printed circuit board 12 also comprises a through opening 14 able to make the electrical connections necessary for the operation of LEDs pass through. To allow greater heat dissipation a thermo-conductive resin is applied between the support body 2 and the printed circuit board 12.
  • the cap element 8 also has an outer surface 9a with ribs 15, 16 able to reinforce the support body 2 and facilitate heat dissipation.
  • the ribs 15, 16, in fact, besides providing thicknesses that increase the resistance of the support body 2, increase the outer surface 9a in contact with air, promoting heat exchange between the support body 2 and the air itself.
  • the ribs 15, 16 are divided into first ribs 15 and second ribs 16.
  • the first ribs 15 have a first stretch 15a substantially straight which extends on one of the side walls 10, a second stretch 15b substantially curved which extends on the bottom wall 9 and connected to the first stretch 15a, and a third stretch 15c substantially straight which extends on an adjacent side wall and connected to the second stretch 15b.
  • the second ribs 16 have a first stretch 16a substantially straight which extends on one of the side walls 10 and a second stretch 16b which extends on the bottom wall 9 and connected to the first stretch 16a.
  • the ribs 15, 16 so arranged promote circulation of air between the ribs themselves, thus increasing the ability of the support body 2 to dissipate heat.
  • the attachment medium 17 is composed of a housing seat able to accommodate the end part of an electric cable.
  • Embodiments with different connections are not ruled out comprising, e.g., an integrated cable or other forms of connection.
  • the cap element 8 is made of plastic material able to disperse heat.
  • the cap element 8 is made of plastic which is obtained from a polymer composition such as to ensure structural resistance for the illuminance required and relative operating temperatures, as well as to ensure heat dissipation such as to keep the temperature within acceptable limits for LEDs operation.
  • the apparatus 1 comprises an attachment device 18 of the support body 2 to a bearing structure such as a fixed wall or the chassis of a means of transport, etc.
  • the attachment device 18 comprises a base 19 stably associable with the bearing structure and articulation means 23, 24, 25 interposed between the base 19 and the support body 2.
  • the latter allow the support body 2 to rotate with respect to the bearing structure.
  • the articulation means 23, 24, 25 allow to rotate the support body 2 around a second and a third direction 21 and 22 mutually orthogonal to the first direction 20.
  • the articulation means 23, 24, 25 comprise a first cylindrical surface 23, an intermediate element 24 and a hinging assembly 25.
  • the first cylindrical surface 23 is formed on the base 19.
  • the base 19 has a hole 26 able to make a fixing screw 27, 28, 29, 30 pass to measure.
  • the fixing screw 27, 28, 29, 30 has a prismatic head 27 and is advantageously a traditional bolt having a prismatic hexagonal head 27, a threaded screw 28, a screwable nut 29 and washers 30 placed between the nut 29 and the base 19.
  • the intermediate element 24 has a second cylindrical surface 33 substantially complementary to the first cylindrical surface 23 and sliding at least in part on it so as to make the support body rotate around the second direction 21.
  • the intermediate element 24 is "U"-shaped, with a central part 31 and two side parts 32.
  • the central part 31 is curved and allows a rotational sliding of the second cylindrical surface 33 on the first cylindrical surface 23.
  • the central part 31 has a slot 34 able to make the fixing screw 27, 28, 29, 30 pass through.
  • the side parts 32 have two gaps 35 able to make a pin 29a, 30a, 36 pass through.
  • the pin 29a, 30a, 36 is composed of a bolt with smooth shank 36 and relative nut 29a and washer 30a.
  • the bolt is part of the hinging assembly 25 which is interposed between the support body 2 and the intermediate element 24.
  • the support body 2 has a cylindrical hollow extrusion 37 aligned with the gaps 35 along the third direction 22 and secured to the intermediate element 24 by means of the pin 29a, 30a, 36 inserted into the gaps 35 and in the hollow extrusion 37.
  • the hinging assembly 25 allows the support body 2 to rotate with respect to the third direction 22.
  • Embodiments are not ruled out wherein the articulation means 23, 24, 25 are made with different solutions allowing rotation in the three directions 20, 21, 22.
  • the attachment device 18 To lock the position of the support body 2, the attachment device 18 has a "C"-shaped fixing element 38 and has a prismatic housing seat 39.
  • This seat has a hexagonal outline and is able to be coupled to the head 27 of the bolt so as to prevent rotations around the first direction 20.
  • the fixing element 38 is able to embrace at least in part the intermediate element 24 and the base 19, so as to prevent rotations around the second direction 21.
  • the apparatus 1 fixed to a bearing structure by means of the attachment device 18, is directed towards the area or the point to be illuminated by adjusting the articulation means 23, 24, 25 and is connected to the electrical mains.
  • a light beam is generated by means of which the area or the selected point are illuminated.
  • the first lighting devices 3a are switched on, so the light radiation is amplified and diffused in such a way that the apparatus 1 illuminates an extended area.
  • the second lighting devices 3b are switched on, so the light radiation is concentrated in a well-defined beam in such a way that the apparatus 1 illuminates a precise point.
  • One or more mixed lighting modes cannot be ruled out wherein some or all first and second lighting devices 3a, 3b are switched on.
  • This increase in temperature is limited by the particular shape of the outer surface 9a wherein the ribs 15, 16 are arranged in such a way as to promote air circulation and heat dissipation.
  • the apparatus also ensures an effective heat dissipation due to the particular arrangement of the ribs.
  • the present invention allows to have an apparatus easy to position and adjustable in a practical and simple manner thanks to the special attachment device.

Landscapes

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

Claims (10)

  1. Beleuchtungsgerät (1), das mindestens einen Trägerkörper (2) und mindestens eine mit dem Trägerkörper (2) verknüpfte Beleuchtungsvorrichtung (3a, 3b) umfasst, umfassend eine Vielzahl der Beleuchtungsvorrichtungen (3a, 3b), darunter:
    - mindestens eine erste Beleuchtungsvorrichtung (3a), die mindestens ein erstes emittierendes Element (4a), das in der Lage ist, Lichtstrahlung zu emittieren, und mindestens eine erste Beleuchtungseinrichtung (5a) umfasst, die mit dem ersten emittierenden Element (4a) verknüpft ist und eine im Wesentlichen polygonale erste Innenfläche (6a) aufweist, die in der Lage ist, die Lichtstrahlung zu streuen; und
    - mindestens eine zweite Beleuchtungsvorrichtung (3b), die mindestens ein zweites emittierendes Element (4b), das in der Lage ist, Lichtstrahlung zu emittieren, und mindestens eine zweite Beleuchtungseinrichtung (5b) umfasst, die mit dem zweiten emittierenden Element (4b) verknüpft ist und eine im Wesentlichen glatte zweite Innenfläche (6b) aufweist, die in der Lage ist, die Lichtstrahlung zu lenken, und umfassend:
    - eine Anbringungsvorrichtung (18) des Trägerkörpers (2) an einer Lagerstruktur und einen Sockel (19) umfassend, der stabil mit der Lagerstruktur verknüpfbar ist; und Gelenkmittel (23, 24, 25), die zwischen dem Sockel (19) und dem Trägerkörper (2) eingefügt und in der Lage sind, den Trägerkörper (2) in Bezug auf die Lagerstruktur zu drehen;
    gekennzeichnet durch die Tatsache, dass die Gelenkmittel (23, 24, 25) umfassen:
    - eine erste zylindrische Fläche (23), die am Sockel gebildet ist;
    - ein Zwischenelement (24), das eine zweite zylindrische Fläche (33) aufweist, die im Wesentlichen zur ersten zylindrischen Fläche (23) komplementär ist und mindestens zum Teil auf derselben gleitet; und
    - eine Scharnierbaugruppe (25), die zwischen dem Trägerkörper (2) und dem Zwischenelement (24) eingefügt ist;
    und durch die Tatsache, dass die Anbringungsvorrichtung (18) umfasst:
    - ein "C"-förmiges Befestigungselement (38), das einen prismenförmigen Aufnahmesitz (39) aufweist und in der Lage ist, das Zwischenelement (24) und den Sockel (19) mindestens zum Teil zu umfassen; und
    - eine Befestigungsschraube (27, 28, 29, 30), die einen prismenförmigen Kopf (27) aufweist, die in den prismenförmigen Aufnahmesitz (39) einführbar ist und mit der Lagerstruktur verknüpfbar ist.
  2. Beleuchtungsgerät (1) nach Anspruch 1, gekennzeichnet durch die Tatsache, dass es eine Vielzahl der ersten Beleuchtungsvorrichtungen (3a) umfasst, die in einer im Wesentlichen Umfangsposition angeordnet sind.
  3. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass es eine Vielzahl der zweiten Beleuchtungsvorrichtungen (3b) umfasst, die in einer im Wesentlichen zentralen Position angeordnet sind.
  4. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass die ersten und zweiten Beleuchtungseinrichtungen (5a, 5b) in einem einzelnen Körperstück angefertigt sind, das ein im Wesentlichen plattenförmiges Element umfasst, welches Konvexitäten umfasst, die die Beleuchtungseinrichtungen (5a, 5b) definieren.
  5. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass der Trägerkörper (2) mindestens ein Kappenelement (8) umfasst, das in der Lage ist, die ersten und zweiten Beleuchtungsvorrichtungen (3a, 3b) aufzunehmen.
  6. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass das Kappenelement (8) eine Bodenwand (9) und eine Vielzahl von Seitenwänden (10) aufweist.
  7. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass das Kappenelement (8) eine Außenfläche (9a) umfasst, die Rippen (15, 16) aufweist, welche in der Lage sind, den Trägerkörper (2) zu verstärken und Wärmeabfuhr zu begünstigen.
  8. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass die Rippen (15, 16) erste Rippen (15) umfassen, die eine im Wesentlichen gerade erste Strecke (15a) aufweisen, die sich an einer der Seitenwände (10) erstreckt, eine im Wesentlichen gekrümmte zweite Strecke (15b), die sich an der Bodenwand (9) erstreckt und mit der ersten Strecke (15a) verbunden ist, und eine im Wesentlichen gerade dritte Strecke (15c), die sich an einer benachbarten Seitenwand (10) erstreckt und mit der zweiten Strecke (15b) verbunden ist.
  9. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass die Rippen (15, 16) zweite Rippen (16) umfassen, die eine im Wesentlichen gerade erste Strecke (16a) aufweisen, die sich an einer der Seitenwände (10) erstreckt, und eine zweite Strecke (16b), die sich an der Bodenwand (9) erstreckt und mit der ersten Strecke (16a) verbunden ist.
  10. Beleuchtungsgerät (1) nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch die Tatsache, dass das Kappenelement (8) aus Kunststoffmaterial angefertigt ist, das in der Lage ist, Wärme abzuführen.
EP15183240.9A 2014-09-03 2015-09-01 Beleuchtungsvorrichtung Active EP2993393B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20140249 2014-09-03

Publications (2)

Publication Number Publication Date
EP2993393A1 EP2993393A1 (de) 2016-03-09
EP2993393B1 true EP2993393B1 (de) 2018-08-22

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EP15183240.9A Active EP2993393B1 (de) 2014-09-03 2015-09-01 Beleuchtungsvorrichtung

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900012570A1 (it) * 2019-07-22 2021-01-22 Aec Illuminazione S R L Modulo illuminante led e sistema di montaggio della scheda led di detto modulo

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Publication number Priority date Publication date Assignee Title
JP4799393B2 (ja) * 2006-12-20 2011-10-26 京セラ株式会社 照明装置
US7888883B2 (en) * 2008-01-25 2011-02-15 Eveready Battery Company, Inc. Lighting device having cross-fade and method thereof
DE102009047971B4 (de) * 2009-10-01 2011-12-01 Dräger Medical GmbH Aufhängevorrichtung und Verfahren zu deren Montage
DE102009053957A1 (de) * 2009-11-19 2011-06-01 Osram Gesellschaft mit beschränkter Haftung Reflektor für eine Leuchtvorrichtung und Leuchtvorrichtung
WO2011125010A1 (en) * 2010-04-09 2011-10-13 Koninklijke Philips Electronics N.V. Illumination system and luminaire
DK177579B1 (en) * 2010-04-23 2013-10-28 Martin Professional As Led light fixture with background lighting
US9228715B2 (en) * 2012-02-22 2016-01-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Hybrid canopy lighting for optimum light beam shaping

Non-Patent Citations (1)

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Title
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