EP2085684A1 - Lampe dotée d'une unité de réflecteur autoporteur - Google Patents

Lampe dotée d'une unité de réflecteur autoporteur Download PDF

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Publication number
EP2085684A1
EP2085684A1 EP09151603A EP09151603A EP2085684A1 EP 2085684 A1 EP2085684 A1 EP 2085684A1 EP 09151603 A EP09151603 A EP 09151603A EP 09151603 A EP09151603 A EP 09151603A EP 2085684 A1 EP2085684 A1 EP 2085684A1
Authority
EP
European Patent Office
Prior art keywords
light
luminaire according
reflector unit
lamp
reflector
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
Application number
EP09151603A
Other languages
German (de)
English (en)
Other versions
EP2085684B1 (fr
Inventor
Wolfgang Rüf
Michael Spiegel
Gerald Ladstätter
Wolfgang Bechter
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2085684A1 publication Critical patent/EP2085684A1/fr
Application granted granted Critical
Publication of EP2085684B1 publication Critical patent/EP2085684B1/fr
Not-in-force 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • 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
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the subject of the present invention is a luminaire which has a receiving space for receiving at least one elongated light source and a reflector unit with at least one reflector surface arranged next to the light source, viewed from the area to be illuminated.
  • Luminaires according to the preamble of claim 1 are for example from the DE 100 06 410 A1 the applicant known. Such known from the prior art lamp is in Fig. 7 shown.
  • a light-influencing element 110 is arranged in the form of a raster element under an elongated light source 101.
  • another light-influencing element 111 is arranged in the form of a partial light-permeable diffuser.
  • the luminaire has a reflector unit 102.
  • This lamp has in addition to the reflector unit 102 via a housing unit 120.
  • the reflector unit 102 is mounted on the housing unit.
  • a single light exit element is arranged below the light source and the reflector.
  • This light exit element has a first emission region located substantially in front of the light source and a second emission region separated from the first region, the first and the second emission region having a different light emission characteristic.
  • the majority of the light is emitted via the first emission area, whereby the light can be blended (longitudinally and transversely) by a grid element.
  • the second emission area provides more subtle light, which underlines the light of the first emission area and produces a pleasant optical image.
  • the in the DE 10 2006 026 207 A1 described luminaire also has a housing unit to which all elements such as reflector and light exit element are attached.
  • the object of the present invention is now to further develop the lighting concept explained in the two abovementioned publications. Particular attention is paid to weight reduction and an improvement of the photograph.
  • the luminaire according to the invention has a receiving space for receiving at least one elongated light source and a reflector unit with at least one - viewed from the area to be illuminated - arranged next to the light source reflector surface, wherein the reflector unit is self-supporting and projections and / or recesses for receiving or Holder of functional elements of the lamp has.
  • These functional elements are, for example, lamp sockets, lamp holders, operating devices for lamps, leveling and / or mounting elements.
  • the reflector unit Due to the configuration of the reflector unit as a self-supporting element, there is no longer any disturbance of the light image of the luminaire at the edge regions of the reflector since no connecting elements to a housing unit have to be used here.
  • the reflector unit is now so stably constructed in contrast to the previously known lights that can be attached to her fasteners for the lamp with which the lamp is mounted on a wall or ceiling.
  • the reflector unit is made of aluminum by die casting and the reflector surface is then applied by vapor deposition or painting.
  • cooling fins are integrally formed on the rear side of the reflector unit. These cooling fins enable effective dissipation of the heat generated by the lamp operating devices and the light sources.
  • bores for carrying out a tool for swiveling out the leveling unit or for assembly work can be provided on the reflector unit.
  • a lamp operating device may be arranged either above the light source, wherein the reflector unit forms a rectangular recess at the corresponding location, or the lamp operating device is arranged at one or both ends of the receiving space and the reflector unit forms at the corresponding locations recesses.
  • the receiving space is limited by a light exit opening, which is closed by a light exit element.
  • the reflector unit may have a circumferential recess or groove for latching with the light exit element and the edge regions of the light exit element are folded upwards or angled, wherein the first folded or angled edge region of the light exit element with the rest of the light exit element includes such an obtuse angle such that the end region of the light exit element is perpendicular to the emission area.
  • the light exit element consists of a plurality of sub-elements, wherein a first sub-element disposed substantially in a first emission area in front of the light source and a second sub-element is arranged substantially laterally of the light source and in front of the reflector surface in a second emission and has a different light emission characteristic than the first Light-emitting element.
  • the first and / or the second sub-element can be designed to be adjustable in the light emission direction.
  • an at least partial translucent diffuser can be arranged and in the first light emission region in front of the lamp a light distribution element can be arranged, which is preferably a grid element or a perforated plate.
  • Fig. 1 and Fig. 2 show a first embodiment of the lamp according to the invention.
  • Fig. 1 is a perspective view of this lamp and
  • Fig. 2 shows a cross section through the lamp.
  • the lamp shown in these figures has four fluorescent tubes 1 as light sources. However, it is within the scope of the present invention also possible to use only a single fluorescent tube 1 or a different number of fluorescent tubes 1. The use of completely different light sources, such as LEDs, is conceivable.
  • a reflector unit 2 which has a reflector surface 3 on the underside.
  • the reflector unit 2 is made of aluminum produced by die casting and the reflector surface 3 then applied by vapor deposition or painting.
  • the reflector unit 2 is configured self-supporting. Accordingly, the reflector unit 2 need not be connected to an additional housing unit, which would ensure the assembly and the stability of the lamp. Rather, the reflector unit 2 is configured slightly curved. This shape generates a voltage which ensures that the arrangement according to the invention is stabilized.
  • the reflector unit 2 on recesses and / or projections, which allow the recording or support of functional elements of the lamp.
  • a functional element is, for example, a leveling element.
  • Reference numeral 4 designates an attachment for such a leveling element.
  • a significant advantage of the lamp according to the invention is that the projections 4 are integrated for the leveling elements in the reflector unit 2. This can be dispensed with a housing unit.
  • this construction Compared to the lights known from the prior art, this construction has the advantage that weight can be saved.
  • a weight-reduced lamp is easier to attach and is also characterized by lower production costs.
  • leveling elements are particularly required when installing the luminaire in a suspended ceiling.
  • the leveling elements make it possible to adapt the luminaire to the thickness of the suspended ceiling and thus ensure stable attachment.
  • Various embodiments of leveling elements are known in the art and are not the subject of the present invention.
  • 2 holes 5 are provided in the reflector unit.
  • a tool such as a screwdriver can through such a hole. 5 be passed. With the help of this tool could also be locked, for example, a leveling element. If the lamp according to the invention is embedded in a suspended ceiling, then a leveling element can be swung out by being actuated via a tool introduced through the bore 5. Also with regard to mounting purposes, it makes sense to equip the reflector unit 2 with corresponding holes 5.
  • the inventive design of the reflector surface also improves the light pattern of the luminaire.
  • the edge region between reflector surface and housing unit is always visible in the photograph. Since in the reflector unit 2 according to the invention the underside is designed as a reflector surface 3, such a transition in the light image is no longer recognizable.
  • the surfaces of the reflector unit 2 designated by the reference symbols 3a and 3b are also configured as reflector surfaces. These are surfaces which are not covered by a light exit element 10 arranged below the reflector unit 2. The exact configuration of this light exit element 10 will be discussed below.
  • the surface 3a results as an extension of the reflector surface 3.
  • the surface 3b is angled relative to the reflector surfaces 3 and 3a. Since the surfaces 3a and 3b are designed to be reflective, there are no parasitic effects at the edges of the light image of the luminaire according to the invention, which arise for example by a non-reflective housing in other known in the art lights.
  • cooling fins 6 are formed, by means of which the heat generated by the light sources 1 and the lamp operating device can be dissipated from the interior of the lamp. This concept also allows the effective use of light-emitting diodes as light sources. Light-emitting diodes need an effective system to dissipate the heat, otherwise the semiconductor will be destroyed.
  • the lamp operating device 7 is also arranged in the reflector unit 2.
  • the reflector unit 2 has a corresponding recess.
  • the lamp operating device 7 is arranged directly above the fluorescent tubes 1.
  • the reflector unit 2 accordingly has a rectangular recess above the light sources 1.
  • the recess provided for the lamp operating device 7 is covered by a cover 19.
  • the underside of this cover 19 is designed as a reflector surface 3c.
  • the entire bottom 3, 3a, 3b, 3c of the reflector unit 2 is designed as a reflective surface. Accordingly, no contours of the lamp are more recognizable in the photograph of the lamp.
  • the cover 19 is fastened to the reflector unit 2 by means of a clamp closure.
  • a completely different manner of fastening is also conceivable, for example by means of a plug connection or a screw connection.
  • the reflector unit 2 has means 8 for receiving or holding a battery 9. This can ensure, for example, in an emergency, the power supply of the lamp.
  • the means 8 for receiving the battery 9 are arranged at the top of the lamp, so that they do not affect the photograph of the lamp.
  • the central region 11 has a different light emission characteristic than the outer regions 12, as shown, for example, in US Pat DE 10 2006 026 207 A1 is known.
  • the central region 11 of the light exit element 10 can be configured, for example, as a grid element or as a perforated plate.
  • the use of such raster elements or perforated sheets is advantageous, for example, in luminaires in offices with several VDU workstations, since the down-radiated Light is cross-faded to a certain degree and therefore can not cause reflections on the screens.
  • the outer region 12 is configured such that here decent light is emitted, which underlines the light emitted from the inner region 11 and generates an overall more pleasant light image.
  • the outer region 12 of the light exit element 10 can be configured as an at least partially permeable diffuser.
  • the light exit element 10 is usually fastened to a housing unit. Since in the luminaire according to the invention such a housing unit is dispensed with in order to achieve the above-mentioned advantages, now the reflector unit 2 must be configured such that the light exit element 10 can be fastened to the reflector unit 2. For this purpose, the reflector unit 2 has a peripheral recess or groove 13 for latching with the light exit element 10.
  • the in Fig. 1 and Fig. 2 shown embodiment of the groove 13 and the light exit element 10 proved.
  • the region 14 of the light exit element 10, which adjoins the outer region 12 is angled at an angle 15 relative to the outer region.
  • This angle 15 is preferably blunt.
  • the end region 16 of the light exit element, which engages in the case of a latching in the groove 13, in turn at an angle 17 with respect to the portion 14 is angled.
  • the angle 17 is preferably also selected dull.
  • the regions 14 and 16 preferably have the same light emission characteristic as the second emission region 12. In the present exemplary embodiment, therefore, they are likewise designed as at least part-light-permeable diffusers.
  • the end region 16 is perpendicular to the first and second emission regions 11, 12 of the light exit element 10.
  • the light exit member 10 can be engaged by a simple vertical movement in the groove 13. By pulling the latched Light exit element 10 down this can in turn be released from the groove 13.
  • the groove 13 would have to be provided on the sides of the reflector unit 2. This would, on the one hand, widen the luminaire unnecessarily and, on the other hand, it would no longer be possible for the light exit element 10 to engage and disengage into the groove 13 without the use of tools.
  • the shape according to the invention offers greater stability, and if the region 14 of the light exit element is also designed as an at least partially translucent diffuser, the light image of the luminaire is significantly less disturbed by the angling at an obtuse angle 15 than would be the case at an angle at right angles ,
  • Fig. 3 and Fig. 4 show a second embodiment of the present invention.
  • the same reference numerals designate identical elements.
  • the lamp operating device 7 is no longer located above the light sources 1, but rather elongated receiving spaces 18 are provided for a lamp operating device 7 at the two opposite ends of the light chamber. In this case, it is also necessary to provide the recesses with a corresponding cover (not shown) in order to close the reflector surface.
  • cooling fins 6 are further designed significantly larger. This allows effective and good dissipation of the heat generated by the lamp operating devices 7.
  • a third embodiment of the luminaire according to the invention is finally in the Fig. 5 and 6 shown.
  • the reflector unit 2 is designed such that it picks up various components of the luminaire. These include the batteries 9, 19, the lamp operating device and leveling elements, are provided for the corresponding projections 4.
  • the aluminum die cast part, which forms the reflector unit 2 in this exemplary embodiment is configured in such a way that it reproduces the shape of a luminaire trough.
  • the bottom 3, 3a, 3b, 3c of the reflector unit 2 is designed as a reflective surface.
  • a cover 19 covers the lamp operating device 7 and mounting elements 20.
  • the underside of the cover 19 is designed as a reflector surface 3c. Outwardly, now join the reflector surfaces 3, 3a and 3b.
  • the cover is much larger here. This is due only to design specifications, since the lamp operating device 7 is no longer centrally located in the lamp.
  • the side walls 21, 22, 23 of the reflector unit 2 shown are also larger in this embodiment and they form the shape of a light well after. Their main task, however, continues to be the formation of recesses and formations 4 for receiving or holding functional elements of the luminaire.
  • the decisive advantage in turn is that the underside of the reflector unit 2 is designed as a reflector surface 3, 3a, 3b, 3c.
  • the underside 3c of the cover 19 and the underside 3, 3a, 3b of the reflector unit has been designed to be reflective.
  • This also includes the outer part 3a, 3b of the reflector unit 2, which is not covered by the light exit element 10.
  • the luminaire according to the invention thus produces a light image in which no contours of the luminaire can be seen, and which thus has a very even and pleasant effect on the viewer.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP09151603A 2008-01-29 2009-01-29 Lampe dotée d'une unité de réflecteur autoporteur Not-in-force EP2085684B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008006576A DE102008006576A1 (de) 2008-01-29 2008-01-29 Leuchte mit selbsttragender Reflektoreinheit

Publications (2)

Publication Number Publication Date
EP2085684A1 true EP2085684A1 (fr) 2009-08-05
EP2085684B1 EP2085684B1 (fr) 2012-01-25

Family

ID=40578846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09151603A Not-in-force EP2085684B1 (fr) 2008-01-29 2009-01-29 Lampe dotée d'une unité de réflecteur autoporteur

Country Status (3)

Country Link
EP (1) EP2085684B1 (fr)
AT (1) ATE543044T1 (fr)
DE (1) DE102008006576A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017121121A1 (fr) * 2016-01-11 2017-07-20 深圳市桑达实业股份有限公司 Boîtier de réverbère et réverbère

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010037630A1 (de) * 2010-09-17 2012-03-22 Manfred Grimm Leuchte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB753477A (en) * 1953-05-07 1956-07-25 New Era Ind Tottenham Ltd Improvements in reflectors for fluorescent lighting
US3085152A (en) * 1958-09-02 1963-04-09 Robert A D Schwartz Lighting fixture with ceiling panel supporting element
GB2301176A (en) * 1995-05-20 1996-11-27 Add Reflectors Ltd Luminaire
DE10006410A1 (de) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Leuchte
DE102006026207A1 (de) 2006-05-30 2007-12-06 Siemens Ag Bauteil für eine thermische Beanspruchung, insbesondere Turbinenschaufel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2319316C3 (de) * 1973-04-17 1985-06-20 Händler, Paul, 8400 Regensburg Leuchte mit breitem, gewölbtem Blechreflektor niedriger Bauhöhe
DE4210444A1 (de) * 1992-03-30 1993-10-07 Hartmut S Engel Strahler mit gestufter Reflektorfläche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB753477A (en) * 1953-05-07 1956-07-25 New Era Ind Tottenham Ltd Improvements in reflectors for fluorescent lighting
US3085152A (en) * 1958-09-02 1963-04-09 Robert A D Schwartz Lighting fixture with ceiling panel supporting element
GB2301176A (en) * 1995-05-20 1996-11-27 Add Reflectors Ltd Luminaire
DE10006410A1 (de) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Leuchte
DE102006026207A1 (de) 2006-05-30 2007-12-06 Siemens Ag Bauteil für eine thermische Beanspruchung, insbesondere Turbinenschaufel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017121121A1 (fr) * 2016-01-11 2017-07-20 深圳市桑达实业股份有限公司 Boîtier de réverbère et réverbère

Also Published As

Publication number Publication date
EP2085684B1 (fr) 2012-01-25
DE102008006576A1 (de) 2009-07-30
ATE543044T1 (de) 2012-02-15

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