EP2833050A1 - Lampe oscillante dotée d'une source lumineuse destinée à produire un éclairage indirect - Google Patents

Lampe oscillante dotée d'une source lumineuse destinée à produire un éclairage indirect Download PDF

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Publication number
EP2833050A1
EP2833050A1 EP14179083.2A EP14179083A EP2833050A1 EP 2833050 A1 EP2833050 A1 EP 2833050A1 EP 14179083 A EP14179083 A EP 14179083A EP 2833050 A1 EP2833050 A1 EP 2833050A1
Authority
EP
European Patent Office
Prior art keywords
profile element
pendant
light source
luminaire according
longitudinal axis
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
EP14179083.2A
Other languages
German (de)
English (en)
Other versions
EP2833050B1 (fr
Inventor
Wolfgang Rüf
Wolfgang Bechter
Joachim Frick
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 EP2833050A1 publication Critical patent/EP2833050A1/fr
Application granted granted Critical
Publication of EP2833050B1 publication Critical patent/EP2833050B1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • 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
    • F21V21/005—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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

Definitions

  • the invention relates to a pendant lamp with an elongated carrier element and a, arranged on the support element light source for generating an upward indirect lighting.
  • the invention has for its object to provide a corresponding, improved pendant lamp.
  • the pendant should have better properties with respect to the assembly of the lamp.
  • a pendant lamp which has an elongate support element which extends along a longitudinal axis, and a light source arranged on the support element for producing an upward indirect illumination.
  • the light source in this case has a first portion which extends with respect to the longitudinal axis over a first longitudinal region, and a second portion which extends with respect to the longitudinal axis over a second longitudinal region, wherein the second portion is arranged at a higher level as the first portion and thereby the first portion and the second portion are designed as parts of a structural unit.
  • the light source for producing the upward indirect illumination can be mounted particularly easily and can also be dismounted.
  • the assembly and thus the light source - with respect to a plane normal to the longitudinal axis of the pendant lamp - can be arranged centrally in a particularly suitable manner.
  • the pendant light can thus be made narrower.
  • the fact that the second section of the light source is arranged at a higher level than the first section, can be particularly advantageous under the second section to arrange another component of the pendant light, particularly suitable for a control device for the light source.
  • the pendant lamp is designed such that - when the pendant light is in a suspended state - the unit from the remaining pendant light, in particular from the support element, can be reversibly separated, without requiring the pendant light from the suspended state in a non-suspended state must be spent.
  • the unit with the light source is particularly easy to handle - namely, without that the pendant lamp would have to be removed for this - disassemble the rest of the pendant and also mount again to the rest of the pendant lamp.
  • This may be relevant, for example, in the case of an exchange of the structural unit, by means of which the pendant luminaire is to be given other properties with regard to the indirect lighting or when the operating device is replaced.
  • the assembly is mechanically connected only via a screw with the rest of the pendant lamp, wherein the screw preferably comprises at least two screws.
  • a screw is particularly easy to use.
  • an electrical ground connection between the assembly and the remaining pendant lamp can be produced by the screw connection particularly suitable. If the screw connection comprises at least two screws, disassembly of the assembly requires two independent actions. As a result, the risk for a user is reduced to receive an electric shock by accidental contact with the light source; In addition, relevant safety regulations can be complied with.
  • the assembly is electrically connected only via a plug connection with the rest of the pendant lamp.
  • the electrical connection between the unit and the remaining pendant lamp when assembling the pendant lamp or when replacing the unit or the operating device can be particularly easy to establish or solve.
  • the assembly comprises a first profile element and a second profile element, wherein the first portion of the light source is arranged held on the first profile element and the second portion of the light source is held held on the second profile element.
  • each module comprises a profile element.
  • the assembly further comprises a connecting element which connects the first profile element with the second profile element.
  • a connecting element which connects the first profile element with the second profile element.
  • the pendant lamp also has a suspension element for mounting the pendant light to a light carrier, such as a ceiling, on, wherein the connecting element has a recess and the suspension element is arranged passing through the recess.
  • the suspension element can be arranged with respect to the longitudinal axis at a location where it particularly affects the upward light output of the light source for generating the indirect illumination.
  • the recess of the connecting element is U-shaped, it can be achieved that the assembly for disassembly with respect to the longitudinal axis can be separated particularly easily by a lateral movement of the remaining pendant lamp.
  • the first profile element and the second profile element each have at least one screw, preferably at least two screw channels, which is or are designed to receive a respective connecting means, such as a screw, for fastening the connecting element.
  • a respective connecting means such as a screw
  • the assembly further preferably further comprises a cover member, which is arranged held on the first profile element such that it covers the channel and the first portion of the light source arranged therein.
  • the first profile element on guide elements for holding the cover which are designed to extend in particular parallel to the longitudinal axis.
  • the cover element can be connected as intended to the first profile element only by means of a translatory movement in the direction of the longitudinal axis. The risk of unwanted access to the light source is thereby further reduced.
  • the assembly further comprises an end cover member configured to secure the position of the cover member with respect to a movement parallel to the longitudinal axis.
  • the second profile element preferably also has the same cross-sectional shape as the first profile element, wherein preferably the structural unit also has a further covering element which is held in the same manner on the second profile element as the first-mentioned covering element on the first profile element.
  • Fig. 1 shows a perspective sketch of an embodiment of a pendant lamp according to the invention, hereinafter also referred to briefly as a lamp.
  • the luminaire has an elongated carrier element 1 which extends along a longitudinal axis L.
  • the lamp is generally elongate, wherein the longitudinal axis L forms a major axis of the lamp.
  • the luminaire may have at least one suspension element 5, for example in the form of a cable, a cable or a pendulum or the like, optionally with retaining elements attached thereto for mechanical connection to the support element 1 on the one hand and a light support on the other hand, such as a ceiling.
  • the pendant lamp exactly two suspension elements 5,5 ', which are arranged with respect to the longitudinal axis L on the support member 1, that they are equidistant from each next longitudinal end point of the lamp.
  • the lamp has a, in separated form in Fig. 2 Outlined in perspective on 3 unit.
  • the assembly 3 is preferably designed to be generally elongate, extending with its longitudinal axis parallel to the longitudinal axis L.
  • Fig. 3 shows a, normal to the longitudinal axis L directed cross-section of the unit 3.
  • the lamp has a, arranged on the support member 1 light source 2.
  • the light source 2 may in particular have a plurality of LEDs (LED: light-emitting diode).
  • the light source 2 comprises a first portion 21 which extends with respect to the longitudinal axis L over a first longitudinal region L1 , and a second portion 22 which extends with respect to the longitudinal axis L via a second longitudinal region L2 .
  • the second section 21 is arranged at a higher level than the first section 22.
  • the first section 21 and the second section 22 are designed as parts of the unit 3.
  • the first section 21 may comprise a plurality of LEDs which are arranged on a first circuit board 81 and the second section 22 further a plurality of LEDs disposed on a second board 82.
  • the plurality of LEDs may each be arranged along a straight line which extends parallel to the longitudinal axis L.
  • the light source can typically be provided that a relevant board is subjected to a high voltage. Therefore, it is useful if the lamp is designed such that a user of the lamp is protected as possible from accidental contact with the board.
  • the light source 2 is designed as a whole as part of the unit 3.
  • the light source 2 in addition to the first section 21 and the second section 22, has a third section which extends correspondingly over a third longitudinal area L3 , wherein the three longitudinal areas L1, L2, L3 are arranged in a row along the longitudinal axis L and the second longitudinal region L2 is arranged between the first longitudinal region L1 and the third longitudinal region L3 .
  • the light source 3 may consist of the three sections mentioned, so in particular have no further section.
  • the third section is preferably designed analogously or structurally to the first section 21.
  • a first suspension element 5 of exactly two suspension elements 5,5 'between the first portion 21 and the second portion 22 of the light source 2 on the support member 1 is arranged attacking and the corresponding second suspension element 5' between the second Section 22 and the third portion of the light source 2 on the support element 1 attacking.
  • the design is more general in particular such that the at least one suspension element 5, 5 'does not engage the structural unit 3.
  • the unit 3 can be separated from the rest of the lamp without the at least one suspension element should be 5,5 'separated from the lamp.
  • the second portion 22 of the light source 2 is disposed at a higher level than the first portion 21.
  • the configuration may be such that the LEDs of the first portion 21 are located higher than the LEDs of the second portion 22.
  • Fig. 1 indicated by the position of the drawn longitudinal axis L and a parallel thereto, higher, dashed outlined, straight line G.
  • the longitudinal axis L is sketched on a first level, on which the LEDs of the first section 21 of the light source 2 are arranged and the straight line G at a second level, on which the LEDs of the second portion 22 of the light source 2 are arranged.
  • the second level is higher than the first level by a height offset ⁇ h .
  • the height offset .DELTA.h can be, for example, between 1 cm and 10 cm.
  • this height-offset arrangement can be under the second portion 22 of the light source 2 advantageously gain a space in which preferably an operating device of the lamp, such as a converter, for example, for powering the light source 2, may be arranged or other electrical components of the lamp may be arranged can.
  • an operating device of the lamp such as a converter, for example, for powering the light source 2
  • the light source 2 can be particularly simply disassemble the rest of the lamp, in particular, without the lamp would have to be suspended for this purpose. Accordingly, the unit 3 can also be mounted again on the corresponding suspended remaining light. Thus, the handling of the lamp, in particular with respect to a mounting and dismounting of the light source 2 and the unit 3 is facilitated.
  • the lamp is in particular designed such that - when the lamp is in a suspended state - the unit 3 can be reversibly separated from the rest of the lamp, in particular of the support member 1, without requiring the pendant lamp from the suspended state must be spent in a non-suspended state.
  • the assembly 3 is advantageous mechanically only via a screw with the rest of the light, here with the support member 1, respectively.
  • the structural unit 3 has at its two longitudinal end regions in each case an engagement element for a screw, for example a first passage opening 91 at a first longitudinal end area of the unit 3 and a second passage opening 92 at the second longitudinal end area of the unit 3 opposite thereto.
  • the screw connection is preferably designed such that it forms an electrical ground connection between the structural unit 3 and the remaining luminaire or the carrier element 1.
  • the screw connection preferably comprises exactly two screws; thus have to disassemble the unit 3 solved two screws become two independent actions are required. This reduces the risk that unintentionally an access to the light source 2 or to one of the boards 81, 82 is formed; Thus, the risk of injury to a user due to electric shock and / or damage to the light source 2 is reduced.
  • the lamp is designed so that the assembly 3 is electrically connected only via a (not shown in the figures) connector with the rest of the lamp.
  • a (not shown in the figures) connector with the rest of the lamp.
  • each section of the light source 2 has to be electrically connected separately to the rest of the luminaire.
  • the handling with respect to the disassembly and assembly of the unit 3 is further facilitated.
  • Fig. 4 the first longitudinal end region of the structural unit 3 is sketched as a perspective view obliquely from above;
  • Fig. 5 shows a corresponding sketch when viewed from diagonally below.
  • the structural unit 3 comprises a first profile element 31 and a second profile element 32, the first section 21 of the light source 2 being held on the first profile element 31 and the second section 22 of the light source 2 being held on the second profile element 32.
  • These profile elements 31, 32 are arranged in each case aligned parallel to the longitudinal axis L.
  • the second profile element 32 is arranged corresponding to the height offset .DELTA.h higher than the first profile element 31st
  • the assembly 3 further comprises a corresponding third profile element 33, wherein the third portion of the light source 2 is arranged analogously held on the third profile element 33.
  • the third profile element 33 is preferably arranged at the same level as the first profile element 31.
  • the second profile element 32 is preferably - as indicated in the figures - formed longer than the first profile element 31 and the third profile element 33.
  • the first profile element 31 and the third profile element 33 are preferably formed equal length.
  • the assembly 3 may comprise a respective profile element 31, 32, 33 for each section of the light source 2.
  • a particularly simple embodiment can be achieved if the first profile element 31 and the second profile element 32 or all profile elements of the structural unit 3 have the same cross-sectional shape.
  • the lamp has two vertical side walls 11 which extend along the longitudinal axis L and which may be designed in particular as parts of the support element 1;
  • the arrangement is such that the profile elements 31, 32, 33 of the assembly 3 are arranged between the two side walls 11, in particular such that between the profile elements 31, 32, 33 on the one hand and the adjacent side walls 11 on the other hand distances are formed which are smaller than 2 mm.
  • the side walls 11 preferably extend upwards as high as the adjacent profile elements 31, 32, 33.
  • the side walls 11 can accordingly be made higher along the second longitudinal region L2 than along the first and third longitudinal regions L1, L3. Also, the side walls 11 are to limit a space for the operating device side.
  • the assembly 3 - after loosening the screw with the support element 1 - is first raised so far up until the profile elements 31, 32, 33 free from the height range of the side walls 11 and then to the side is moved away.
  • the in Fig. 3 shown cross section is at the height of the second profile element 32 - when looking in the direction of the first longitudinal end of the assembly 3 - laid; Therefore, the description below is directed to this second profile element 32, but applies analogously to the first profile element 31 and optionally for each further profile element of the assembly 3 accordingly. Therefore, in the following, the expression "the profile element 32" will be used in the following in such a way that, unless expressly stated otherwise, it should refer to each of the profile elements 31, 32, 33 of the unit 3.
  • the profile element 32 is, for example, an extruded profile.
  • the profile element 32 may be made of aluminum.
  • the profile element 32 in the cross section normal to the longitudinal axis L considered a U-shape, so that a channel K is formed by this U-shape.
  • this channel K is the corresponding associated, here held the second portion 22 of the light source 2 held.
  • the relevant, in this case the second board 82 may be arranged.
  • the first profile element 31 is advantageously connected via a connecting element 4 with the second profile element 32.
  • the design is such that the first profile element 31 is mechanically fixed to the second profile element 32 only via the connecting element 4.
  • the connecting element 4 may be designed, for example, as a sheet metal part.
  • the connecting element 4 is preferably designed with an oblique section, so that the height offset .DELTA.h between the first profile element 31 and the second profile element 32 is realized by this oblique section.
  • the connecting element 4 preferably has a recess 41, wherein the or the first suspension element 5, the recess 41 is arranged to pass through.
  • the recess 41 is preferably U-shaped, in particular U-shaped in a horizontal plane. In this way, for disassembly of the assembly 3, the latter - after loosening the screw connection and lifting over the side walls 11 - can easily move to one side, so that the suspension element 5 comes out of the recess 41.
  • the assembly 3 is preferably designed so that it also has a corresponding, in particular structurally designed further connecting element 4 ', which connects the second profile element 32 with the third profile element 33 in an analogous manner, wherein the second suspension element 5' the corresponding Recess of the further connecting element 4 'interspersed accordingly.
  • the connecting element 4 For mechanical attachment of the connecting element 4 to the second profile element 32, the latter preferably has at least one screw 8.
  • the screw 8 serves to receive a connecting means, for example in the form of a screw 9 for fastening the connecting element 4 to the second profile element 32.
  • the profile element 32 has two corresponding screw 8 and accordingly two connecting means or screws 9 are provided for fastening the connecting element 4 to the second profile element 32.
  • the at least one screw channel 8 analogous again applies again for the other profile elements of the assembly. 3
  • the assembly 3 further comprises a translucent cover member 6 which is arranged held on the first profile element 31 so that it covers the channel K and arranged therein first portion 21 of the light source 2.
  • a corresponding cover element 6 is provided for each profile element 31, 32, 33, which covers the correspondingly associated section of the light source 2.
  • the cover 6 is preferably designed plate-shaped.
  • the cover 6 can be made impact resistant to achieve a particularly suitable protection of the light source 2.
  • the cover 6 may be made crystal clear, for example, made of a plastic, such as PMMA (polymethyl methacrylate) and, for example, have a thickness between 3 and 5 mm.
  • the latter preferably has guide elements 321, which are designed to extend in particular parallel to the longitudinal axis L and are preferably formed by the shape of the profile of the profile element 32.
  • the guide elements 321 are advantageously designed such that the cover element 6 can be inserted by a movement parallel to the longitudinal axis L in the (separated) profile element 32, but not from the inserted state by a movement upwards or perpendicular to the main axis of the Profile element 32 and the longitudinal axis L can be removed.
  • one of the guide elements 321 is formed in each case on one of the two free end regions of the U-legs of the U-shape of the profile element 32.
  • the assembly 3 for securing the position of the (inserted) cover member 6 of the first Profile element 31 with respect to a movement parallel to the Lekssache L preferably further also an end cover element 7 on.
  • the end cover member 7 is designed to close the adjacent channel K.
  • the end cover element 7 may be designed as a sheet metal part.
  • the first through-opening 91 for the screw connection between the structural unit 3 and the carrier element 1 can be formed on the end cover element 7.
  • two corresponding connection means for example screws 9 ', can again be advantageously provided, which engage in the corresponding screw channels 8 of the first profile element 31.
  • the connecting element 4 is preferably shaped such that it closes off the channel K and in particular secures the cover element 6 against a positional shift out of the guide elements 321.
  • Fig. 2 shows - the entire unit 3 designed symmetrically, so that the third profile element 33 on the one hand by a corresponding further Endabdeckungselement 7 'is covered and on the other hand of the further connecting element 4'.
  • a cable connection (not shown in the figures) may be provided. This can be guided through small passage openings 41, 42, which are configured in the connecting element 4 or in the further connecting element 4 '. Of course, these through holes 41, 42 are dimensioned such that through them no penetration can be made by a user.
  • the assembly 3 and the remaining light such as the operating device, preferably only one connector is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP14179083.2A 2013-08-01 2014-07-30 Lampe suspendue dotée d'une source lumineuse destinée à produire un éclairage indirect Active EP2833050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013103456.8U DE202013103456U1 (de) 2013-08-01 2013-08-01 Pendelleuchte mit einer Lichtquelle zur Erzeugung einer indirekten Beleuchtung

Publications (2)

Publication Number Publication Date
EP2833050A1 true EP2833050A1 (fr) 2015-02-04
EP2833050B1 EP2833050B1 (fr) 2017-01-04

Family

ID=51263242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14179083.2A Active EP2833050B1 (fr) 2013-08-01 2014-07-30 Lampe suspendue dotée d'une source lumineuse destinée à produire un éclairage indirect

Country Status (3)

Country Link
EP (1) EP2833050B1 (fr)
AT (1) AT14420U1 (fr)
DE (1) DE202013103456U1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214580A (en) * 1962-12-31 1965-10-26 Herst Lighting Corp Indirect lighting fixture system
US5226724A (en) * 1992-06-17 1993-07-13 Kanarek Shepard S Modular, user-installed, surface-mounted, fluorescent lighting system
EP1043542A2 (fr) * 1999-04-07 2000-10-11 Zumtobel Staff GmbH Système d' éclairage pour installation au plafond ou au mur d' une pièce
DE102008014317A1 (de) 2008-03-14 2009-09-17 Zumtobel Lighting Gmbh Leuchte mit getrennten Leuchtmitteln für Direktbeleuchtung und Indirektbeleuchtung
DE202010003751U1 (de) * 2010-03-17 2011-07-26 Zumtobel Lighting Gmbh Leuchte zur Erzeugung einer veränderbaren indirekten Beleuchtung
DE202011051094U1 (de) * 2011-08-25 2012-11-28 Zumtobel Lighting Gmbh Leuchteneinheit für eine Leuchte, sowie Leuchte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8201006A (nl) * 1982-03-11 1983-10-03 Profilight Bv Verlichtingsarmatuur.
DE59007773D1 (de) * 1990-08-03 1995-01-05 Siemens Ag Modulares Leuchtensystem.
DE29901397U1 (de) * 1999-01-27 2000-08-10 Zumtobel Staff Gmbh Längliche, im Querschnittsprofil linsenartige Pendel- oder Anbauleuchte
US20100097791A1 (en) * 2008-10-18 2010-04-22 Chang Kai-Nan Light emitting diode (led) strip light
DK2209165T3 (da) * 2009-01-19 2012-09-24 Erea Nv Anordning til fejlsikker mekanisk og elektrisk konnektivitet mellem ledere
TWM378328U (en) * 2009-11-10 2010-04-11 Jia-Xiu Lin LED panel which is easy to be mounted/dismounted and of which illumination can be controlled
CN101893178A (zh) * 2010-07-30 2010-11-24 深圳市众明半导体照明有限公司 一种led灯管

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214580A (en) * 1962-12-31 1965-10-26 Herst Lighting Corp Indirect lighting fixture system
US5226724A (en) * 1992-06-17 1993-07-13 Kanarek Shepard S Modular, user-installed, surface-mounted, fluorescent lighting system
EP1043542A2 (fr) * 1999-04-07 2000-10-11 Zumtobel Staff GmbH Système d' éclairage pour installation au plafond ou au mur d' une pièce
DE102008014317A1 (de) 2008-03-14 2009-09-17 Zumtobel Lighting Gmbh Leuchte mit getrennten Leuchtmitteln für Direktbeleuchtung und Indirektbeleuchtung
DE202010003751U1 (de) * 2010-03-17 2011-07-26 Zumtobel Lighting Gmbh Leuchte zur Erzeugung einer veränderbaren indirekten Beleuchtung
DE202011051094U1 (de) * 2011-08-25 2012-11-28 Zumtobel Lighting Gmbh Leuchteneinheit für eine Leuchte, sowie Leuchte

Also Published As

Publication number Publication date
DE202013103456U1 (de) 2014-11-04
EP2833050B1 (fr) 2017-01-04
AT14420U1 (de) 2015-11-15

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