EP2994690B1 - Luminaire équipé d'un boîtier comportant plusieurs orifices de rayonnement de lumière - Google Patents

Luminaire équipé d'un boîtier comportant plusieurs orifices de rayonnement de lumière Download PDF

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Publication number
EP2994690B1
EP2994690B1 EP14719278.5A EP14719278A EP2994690B1 EP 2994690 B1 EP2994690 B1 EP 2994690B1 EP 14719278 A EP14719278 A EP 14719278A EP 2994690 B1 EP2994690 B1 EP 2994690B1
Authority
EP
European Patent Office
Prior art keywords
light
housing
lighting fixture
reflector
lamp
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
EP14719278.5A
Other languages
German (de)
English (en)
Other versions
EP2994690A1 (fr
Inventor
Daniel EBERLE
Julian Lonsdale
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
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Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2994690A1 publication Critical patent/EP2994690A1/fr
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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
    • 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
    • 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
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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 luminaire which has a plurality of light emission openings for emitting light on a light emission side of a luminaire housing.
  • Luminaires for illuminating workplaces or comparable areas are known in a wide variety of variants.
  • the optical elements of such a luminaire should be designed such that the light is focused concentrated on the area to be illuminated and, moreover, there is no risk of glare for a viewer or unwanted reflections. From the state of the art for this purpose a variety of optical elements are known, with the help of these requirements is taken into account.
  • LEDs as punctiform light sources now have properties with regard to their light output, which enable their use in all fields of application of lighting technology.
  • LEDs are essentially punctiform light sources, either an optical system that dissolves the appearance of individual light sources must then be used, or the LEDs are each assigned individual optical elements, which are then in the form of lenses or individual reflectors for the light source Viewers are recognizable.
  • the present invention is based on the object, in this regard, to provide a novel lamp, which differs in terms of their appearance from previously known lights, but at the same time meets the requirements of modern lighting technology, especially with regard to a reliable and efficient illumination of workstations.
  • the luminaire according to the invention is preferably realized in the form of a so-called long-field luminaire. That is, the lamp has a housing which is elongate and has on its underside, which forms the light emission side of the lamp, a plurality of Lichtabstrahlö réelleen, each associated with a light source arranged in the housing.
  • the light emission openings are now not closed by an optical element such as a lens or the like, but instead open to the inside.
  • a pot-like reflector is responsible, each associated with a light source and extends from the light source to the associated Lichtabstrahlö réelle. This results in a novel appearance for a lamp, the light output can be influenced in spite of everything about reflectors in the desired manner, so that lighting can be realized in accordance with the above requirements.
  • a luminaire with a housing which has a plurality of light emission openings at its light emission side, each of which is assigned a light source arranged in the housing, each light source furthermore being associated with a cup-shaped reflector which extends from the light source to the unsealed light emission opening extends, wherein the reflector is flush with the associated Lichtabstrahlö réelle and the reflector has at its end facing the Lichtabstrahlö réelle an encircling recess or step, which is provided for abutment against the edge region of the Lichtabstrahlötechnisch.
  • a simple construction of the luminaire is also achieved according to the invention in that the light sources are arranged together with the associated reflectors on an insertable into the lamp housing support member.
  • the luminaire housing has on its underside, as already mentioned, only the light emission openings.
  • a larger opening extending in the longitudinal direction is preferably provided, via which the carrier element with the light sources and reflectors located thereon can be inserted from the upper side into the housing.
  • the above-mentioned defined system between reflector and Lichtabstrahlö réelle in this case ensures a reliable positioning of the support member in the housing.
  • the carrier element has surface portions which are provided for abutment against the lamp housing. Since the carrier element, as already mentioned, also serves to hold the light sources, this ensures that the heat generated during operation of the light sources, which are preferably realized as LEDs, is generated efficiently transferred to the housing and can be derived here to the environment.
  • the carrier element forms on its side opposite to the light sources and reflectors a further contact surface on which further indirect light sources are arranged for indirect illumination.
  • These light sources can emit light via the above-mentioned upper opening of the housing for indirect illumination, wherein this opening is then closed after insertion of the carrier element into the housing and fastening there optionally by a cover, which may preferably be lens-like.
  • the luminaire according to the invention is preferably a so-called field lamp, which therefore has an elongated housing.
  • This is made as compact as possible in terms of its dimensions, with the result that an operating device for operating the light sources is preferably arranged offset to the light sources.
  • the housing has at least one projecting region which serves to receive the lamp operating device already mentioned.
  • the luminaire according to the invention is designed as a pendant lamp.
  • the further light sources are also provided for indirect illumination. It would also be conceivable, however, to use the luminaire according to the invention in the form of a surface-mounted or recessed luminaire.
  • inventive linear luminaire is designed in the illustrated embodiment as a pendant lamp. That is, the elongated housing 10 of the lamp is fastened by means of two ropes 101 to the ceiling, not shown, of a room or a comparable carrier element.
  • the appearance of the lamp is characterized by the housing 10, which has on its underside 11 a plurality of longitudinally successively arranged light exit openings 15. About these light exit openings 15, the light is emitted to the bottom, so the so-called.
  • Direct lighting which is inventively provided that the openings 15 are not closed.
  • the associated light source and the reflector explained below can be seen through the openings 15, which causes an interesting depth impression when viewing the luminaire 100.
  • the arrangement and configuration of the components required for the direct lighting can in particular the sectional view of FIG. 2 be removed. It can be seen that the rectangular, almost square-shaped housing 10 is designed in the form of an aluminum extruded profile. At regular intervals, the mentioned light exit openings 15 are formed within the profile on the underside 11, which in the present case have a circular shape.
  • each light exit opening 15 is associated with a light source 5, wherein the bundling of the light emitted by LEDs usually in a very wide angular range using a cup-shaped reflector 6 takes place.
  • the reflector 6 extends as shown from the LED 5 to the corresponding light exit opening 15, so that on the one hand it is ensured that almost all LED light can be used for direct lighting.
  • an influencing of the light output takes place exclusively via the reflector walls, so that with a corresponding design of the reflector 6, the light output with respect to its light distribution can be adapted to the requirements.
  • the light exit openings 15 do not necessarily have to assume a circular shape but possibly also otherwise, for example, polygonal or in the form of an oval may be formed.
  • the shape of the corresponding reflector 6, in particular its end region must be adjusted, since this should end as flush as possible and seamless on the bottom 11 of the housing.
  • This desired seamless transition between the reflector 6 and housing bottom 11 is shown in the representation of FIG. 3 achieved in that the reflector 6 at its end facing the light exit opening 15 has a circumferential recess 7 or step, in which the edge region of the light exit opening 15 engages.
  • a defined orientation of the reflector 6 is achieved to the light exit opening 15, which has a very positive effect on the appearance of the lamp when viewing from the bottom.
  • the center leg 21 serves as a support surface for a circuit board 4 with the LEDs arranged thereon 5.
  • the reflectors 6 are attached to this board 4, so that an exact and positionally accurate assignment between LEDs 5 and 6 reflectors is achieved.
  • the support member 20 also has two vertically aligned side legs 22, which correspond to the representation of FIG. 2 get in abutment against inwardly directed projections 12 of the lamp housing 10. These projections 12 each form a screw channel 13, via which at the same time an attachment of the support member 20 takes place on the lamp housing 10. On the one hand this ensures a reliable mounting of the carrier element 20 within the lamp housing 10, on the other hand allows the application of the side legs 22 on the projections 12 of the lamp housing 10, a transfer of the generated by the LEDs 5 during operation heat so that they efficiently on the lamp housing 10th can be transmitted and then released from this to the environment. As a result, the required cooling of the LEDs 5 is ensured during operation.
  • the arrangement and attachment of the support member 20 in the lamp housing 10 then takes place in that it is inserted from the top of the housing 10 via an elongated opening 14 in the housing, wherein due to the defined System between reflectors 6 and light exit openings 15 a correct position positioning is guaranteed. Subsequently, then with the aid of appropriate screws, the final fixation of the support member 20 to the lamp housing 10. Other fasteners, in particular between reflectors 6 and light exit openings 15, however, are not required.
  • the lamp 100 is additionally designed for indirect lighting. This is made possible by the fact that from the center leg 21 of the support member 20, an additional web 24 is vertically upwards. The web 24 widened toward the top and then forms a support surface for a further LED board 8, the light is emitted through the opening 14 to the top, to lighten in the sense of an indirect illumination above the lamp 100 lying area of a ceiling. If necessary, the light output towards the top can be influenced in the desired manner with the aid of a corresponding optical element 9, which is arranged in the opening 14. In general, however, the use of a simple translucent cover, which closes the upper opening 14, would be conceivable.
  • FIGS. 4 and 5 Evident here are the housing 10 and the support element 20 disposed therein with the light sources 5 and 8 located thereon for both direct and indirect lighting and the underside of the support member 20 additionally mounted reflectors 6.
  • the housing 10 On the front side, the housing 10 is closed by a corresponding end cap. It is envisaged that - as in the FIGS. 1 and 5 shown - at one end portion of the housing 10, a projecting portion is formed, in which there are no light exit openings 15 and associated light sources. This projecting portion of the housing 10 is then used to receive a control gear 30 for powering the light sources. Since the housing 10 is preferably designed extremely compact in terms of its dimensions, the operating device 30 can not be positioned in the area of the light sources 5, since it would take too much space here.
  • a corresponding projection of the housing 10 is provided on one side to provide the required clearance.
  • a corresponding protrusion could also be created at the opposite end region of the housing 10, so that the luminaire as a whole is designed to be symmetrical.
  • FIGS. 4 and 5 Furthermore, the finally used means for mounting the luminaire 100 are also shown. These are two mounting plates 31 and 32, which are each placed at the end portions of the top of the housing 10 and then bolted to the support member 20. At the mounting plates 31 and 32 then also attack the lower end portions of the cable suspensions 101.
  • a lamp which has a very simple structure, but due to the corresponding use and arrangement of the components for light emission causes a novel appearance. Nevertheless, the light can be reliably influenced in the desired manner in order to meet the requirements of efficient lighting, for example of workplaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (7)

  1. Luminaire (100), avec un boîtier (10) qui, sur son côté d'émission de lumière, comporte plusieurs ouvertures d'émission de lumière (15) auxquelles est affectée respectivement une source de lumière (5) disposée dans le boîtier (10), un réflecteur (6) en forme de pot étant affecté à chaque source de lumière (5) et s'étendant à partir de la source de lumière (5) jusqu'à l'ouverture d'émission de lumière (15) non fermée, le réflecteur (6) se terminant en affleurement avec l'ouverture d'émission de lumière (15) correspondante, et le réflecteur (6) comportant, au niveau de sa zone d'extrémité tournée vers l'ouverture d'émission de lumière (15), un creux ou un dégradé (7) périphérique qui est prévu pour l'appui contre la zone de bord de l'ouverture d'émission de lumière (15), et les sources de lumière (5) étant, conjointement avec les réflecteurs (6), disposées sur un élément de support (20) pouvant être introduit dans le boîtier (10) de luminaire,
    caractérisé en ce que,
    sur son côté opposé aux sources de lumière (5) et aux réflecteurs (6), l'élément de support (20) forme une surface d'appui sur laquelle sont disposées des sources de lumière (8) supplémentaires prévues pour l'éclairage indirect.
  2. Luminaire selon la revendication 1,
    caractérisé en ce que
    l'élément de support (20) comporte des zones (22) latérales qui sont prévues pour l'appui contre le boîtier (10) de luminaire.
  3. Luminaire selon la revendication 2,
    caractérisé en ce que
    les zones du boîtier (10) de luminaire qui sont prévues pour l'appui contre l'élément de support (20) sont constituées en tant que canaux de vissage (13).
  4. Luminaire selon l'une des revendications précédentes,
    caractérisé en ce que
    les ouvertures d'émission de lumière (15) sont ovales, en particulier sont de forme circulaire.
  5. Luminaire selon l'une des revendications précédentes,
    caractérisé en ce que
    le boîtier (10) est constitué de façon oblongue.
  6. Luminaire selon la revendication 5,
    caractérisé en ce que,
    par rapport à la disposition des ouvertures d'émission de lumière (15), le boîtier (10) comporte une zone en saillie qui est constituée pour recevoir un appareil de commande (30).
  7. Luminaire selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il s'agit d'un luminaire à suspension.
EP14719278.5A 2013-04-25 2014-04-17 Luminaire équipé d'un boîtier comportant plusieurs orifices de rayonnement de lumière Active EP2994690B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013101790.6U DE202013101790U1 (de) 2013-04-25 2013-04-25 Leuchte mit Gehäuse mit mehreren Lichtabstrahlöffnungen
PCT/EP2014/057913 WO2014173816A1 (fr) 2013-04-25 2014-04-17 Luminaire équipé d'un boîtier comportant plusieurs orifices de rayonnement de lumière

Publications (2)

Publication Number Publication Date
EP2994690A1 EP2994690A1 (fr) 2016-03-16
EP2994690B1 true EP2994690B1 (fr) 2019-01-02

Family

ID=50549308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14719278.5A Active EP2994690B1 (fr) 2013-04-25 2014-04-17 Luminaire équipé d'un boîtier comportant plusieurs orifices de rayonnement de lumière

Country Status (3)

Country Link
EP (1) EP2994690B1 (fr)
DE (1) DE202013101790U1 (fr)
WO (1) WO2014173816A1 (fr)

Citations (3)

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Publication number Priority date Publication date Assignee Title
WO2011025244A2 (fr) * 2009-08-25 2011-03-03 ㈜알텍테크놀로지스 Module d'éclairage
EP2515033A1 (fr) * 2011-04-19 2012-10-24 Purso Oy Système d'éclairage
US20120268930A1 (en) * 2011-04-25 2012-10-25 Cree, Inc. Optical arrangement for a solid-state lamp

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US6644841B2 (en) * 2002-03-01 2003-11-11 Gelcore Llc Light emitting diode reflector
GB2404929A (en) * 2003-08-14 2005-02-16 Pixie Developments Ltd Handrail
DE102004019137A1 (de) * 2004-04-16 2005-11-17 Trilux-Lenze Gmbh + Co Kg Leuchtenfeld
CH697541B1 (de) * 2005-03-15 2008-11-28 Regent Beleuchtungskoerper Ag Leuchte und Verwendung von dieser.
WO2009055374A1 (fr) * 2007-10-25 2009-04-30 Lsi Industries, Inc. Réflecteur
US20110310614A1 (en) * 2009-09-01 2011-12-22 Budike Jr Lothar E S Led light fixture having led modules
DE202009016793U1 (de) * 2009-12-11 2011-04-21 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe
WO2011125010A1 (fr) * 2010-04-09 2011-10-13 Koninklijke Philips Electronics N.V. Système d'éclairage et luminaire
TWM389218U (en) * 2010-05-28 2010-09-21 Genius Electronic Optical Co Ltd Optical light-emitting device
JP5612380B2 (ja) * 2010-06-24 2014-10-22 株式会社アイ・ライティング・システム Ｌｅｄ照明器具
WO2012062347A1 (fr) * 2010-11-08 2012-05-18 Osram Ag Dispositif d'éclairage linéaire comportant des dels
DE102011051038A1 (de) * 2011-06-14 2012-12-20 Selux Aktiengesellschaft LED Beleuchtungsanordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011025244A2 (fr) * 2009-08-25 2011-03-03 ㈜알텍테크놀로지스 Module d'éclairage
EP2515033A1 (fr) * 2011-04-19 2012-10-24 Purso Oy Système d'éclairage
US20120268930A1 (en) * 2011-04-25 2012-10-25 Cree, Inc. Optical arrangement for a solid-state lamp

Also Published As

Publication number Publication date
EP2994690A1 (fr) 2016-03-16
WO2014173816A1 (fr) 2014-10-30
DE202013101790U1 (de) 2014-07-28

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