EP2886950B1 - Lumière - Google Patents

Lumière Download PDF

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Publication number
EP2886950B1
EP2886950B1 EP14198436.9A EP14198436A EP2886950B1 EP 2886950 B1 EP2886950 B1 EP 2886950B1 EP 14198436 A EP14198436 A EP 14198436A EP 2886950 B1 EP2886950 B1 EP 2886950B1
Authority
EP
European Patent Office
Prior art keywords
light
housing
light according
support elements
exit opening
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
EP14198436.9A
Other languages
German (de)
English (en)
Other versions
EP2886950A1 (fr
Inventor
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
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 EP2886950A1 publication Critical patent/EP2886950A1/fr
Application granted granted Critical
Publication of EP2886950B1 publication Critical patent/EP2886950B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S19/00Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
    • F21S19/005Combining sunlight and electric light sources for indoor illumination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/01Housings, e.g. material or assembling of housing parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14Covers for frames; Frameless shades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/745Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades the fins or blades being planar and inclined with respect to the joining surface from which the fins or blades extend
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/04Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/007Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Definitions

  • the present invention relates to a luminaire according to the preamble of claim 1, which has a housing which defines a light exit opening, wherein light sources are arranged in the housing.
  • the artificial light output to be adapted to the natural daylight in a particularly elegant manner or complement the natural daylight.
  • Daylight-dependent lighting controls have long been known in particular when illuminating larger buildings or building complexes. Controlling the artificial light depending on the incident from outside daylight not only leads to a more pleasant lighting situation, which improves the so-called indoor climate, but also serves to save energy. The fact that the artificial light is switched on only when the natural daylight does not provide sufficient brightness, the energy consumption of a lighting system can be significantly reduced.
  • the daylight usually falls on windows in a room to be illuminated, the lights, which are responsible for the complementary artificial light, then arranged, for example, on the ceiling of the room or are arranged distributed as floor lamps within the room.
  • a light incidence of daylight is sometimes even when in the ceiling area windows or glazed or generally translucent structures are arranged.
  • the luminaires responsible for the artificial light are then in turn arranged adjacent to these translucent structures on opaque ceiling areas.
  • a luminaire according to the subject-matter of claim 1 is known.
  • a luminaire is to be made available, which enables a coordinated illumination of a room both by daylight and by artificial light.
  • the concept according to the invention is based on the idea of additionally using the light exit opening of the luminaire, which is provided for the delivery of the artificial light, as the light exit surface for the natural daylight. That is, both types of light are emitted over the same area, resulting in a particularly harmonious combination of natural light and artificial light.
  • This combination of the two types of light is achieved in that the housing of the lamp is also open or translucent designed on the opposite rear side of the light exit opening, so that the natural daylight, which occurs from above or from the back of the lamp, through the housing is guided and then leaves this via the light exit opening.
  • a luminaire with a housing which defines a light exit opening and arranged in the housing bulbs proposed, according to the invention, the housing at the opposite side of the light exit opening is at least partially transparent or open and the arrangement of the light source within the housing so is that on the back into the housing entering light can leave this through the light exit opening.
  • the lighting means are arranged on a plurality of elongated carrier elements which extend substantially parallel and at a distance from each other through the housing. In the intermediate regions between the support elements additional optical elements for influencing the passing through (day) light are arranged.
  • the support elements are preferably also the storage of these optical elements.
  • the solution according to the invention makes it possible, with the aid of such luminaires, to fill out a ceiling area of a building or a room with so-called light tiles, through which on the one hand the natural daylight can enter the room and, on the other hand, where appropriate also artificial light is emitted.
  • the previous subdivision between windows or glass fronts, through which the daylight is incident, and separately arranged lights omitted so what leads to an interesting appearance of the room as a whole.
  • the lights can also be used for other purposes such as sound attenuation or the like due to the fact that they can occupy very large areas.
  • additional optical elements for influencing the passing through (day) light then appears even in a situation in which is given by the light only daylight, the light exit surface as uniformly bright.
  • the daylight can pass and ultimately be delivered through the light exit opening.
  • the housing of the lamp according to the invention is like a frame and accordingly completely open to the rear.
  • the housing is preferably rectangular, in particular square shaped, in this regard, of course, there is no restriction and other forms would be conceivable.
  • the lighting means may be formed in particular by LEDs.
  • the support elements for the light sources may be formed by profile parts, in particular aluminum profile parts, which are each attached with their front ends to the housing.
  • the profile parts can then be web-like and initially have a receiving area for holding LED boards. From this receiving area, a web region can then extend to the rear, which is preferably designed in the form of a heat sink, that is to say has a plurality of side arms, by means of which the surface is enlarged and thus the heat exchange with the surrounding air is optimized.
  • the carrier elements can be used simultaneously for holding primary optics for the LEDs, these primary optics are designed to support a uniform light output of the artificial light.
  • the optical elements may, for example, be formed by elongated plates which have a structure in the form of prisms or the like, by means of which a uniform distribution of the daylight is achieved.
  • the primary optics for the illuminants have a comparable function, so that the light exit surface of the luminaire is brightened up as uniformly and homogeneously as possible both by the daylight and by the artificial light.
  • the lamp according to the invention is preferably realized as a large-area light, which can then also be used for other purposes to improve the indoor climate.
  • the luminaire has a translucent cover in the region of the light exit opening, the cover having a frame which is covered with at least two translucent materials which are spaced apart from one another in the light emission direction.
  • the cover has a frame which is covered with at least two translucent materials which are spaced apart from one another in the light emission direction.
  • this special cover is achieved in particular when the two translucent materials have a different sound transmission.
  • the light-transmissive material facing the housing has a lower sound transmission, whereas the sound transmission of the more distant clothing, which ultimately forms the light-emitting surface of the luminaire, is significantly higher.
  • the sound from the cover is no longer reflected but penetrates into the space between the two materials, with the result that the desired sound insulation is achieved.
  • the two materials may in particular be films or fabrics.
  • a square, generally provided with the reference numeral 100 lamp is shown in the figures. It is a luminaire, which is usually arranged below a translucent ceiling structure of a building, through which the daylight in the building or in the room to be illuminated can come up. It is provided with the help of several such lamps 100 to completely fill a larger area, so that on the arrangement thus formed both the daylight and the artificial light falling into the room.
  • the illustrated square shape is provided for the lamp 100, in this regard, of course, there are no restrictions. In general, however, it will be relatively large lights, for example, have an edge length of 1 m or more.
  • the lamp is slightly stepped and has an upper housing part 10, on the underside of a cover 50 is additionally arranged.
  • the cover 50 is designed slightly larger than the housing 10 in terms of their dimensions, in which case when joining several lamp 100, the covers abut each other laterally and on the housing 10 corresponding fastening means for mounting the lamp 100 can be attached.
  • the central idea of the luminaire 100 according to the invention is the sectional view of FIG. 3 removable. It can be seen that the housing 10 is not - as normally usual - has a back, substantially closed bottom surface on which the assembly of the various components of the lamp 100 is carried out. Instead, the housing 10 is formed like a frame and accordingly has on its rear side an almost over the entire width extending opening 11. This opening 11 could optionally be covered by a light-transmitting element, but it is preferably provided that no corresponding cover is used, but the lamp 100 is actually open to the rear.
  • the bottom of the housing 10 defines a light exit opening 12 through which the light is emitted. In the present case, as already indicated, the light output takes place via an additional cover 50, which is arranged below the housing 10 and whose configuration will be explained in more detail below.
  • LEDs 21 are provided in the present case, which, as in FIG. 4 are arranged on elongated boards 20 are arranged.
  • the holder of the LED boards 20 takes place with the aid of a plurality of profile parts 15, which run parallel to each other through the lamp housing 10 and attached respectively at their ends to the frame-like housing 10, for example, with a slightly raised web 13 of the housing wall are screwed.
  • operating devices 14 are also arranged for the power supply of the lighting means.
  • the profile parts 15 are formed in particular by web-like aluminum profiles, which according to the representation of FIG. 4 have on their side facing the LEDs 21 a receiving area 16 for supporting the LED boards 20. From this receiving region 16 extends to the rear, so in the case of mounting upwards a web-like region 17, which has a plurality of laterally branching arms 18. As a result, the profile element 15 forms a heat sink, over which during the operation of the LEDs 21 occurring heat can be dissipated efficiently to the environment. This heat dissipation is thereby supported that, as already mentioned above, the back of the lamp 100 is preferably completely open.
  • This primary optics 22 consists of a plastic part made of translucent material, which is triangular or wedge-shaped in cross section.
  • elongated prisms or scattering structures 23 are formed through which a uniform distribution of the LED light is achieved. This prevents the individual LED rows from appearing as brightly lit areas when the artificial light is activated.
  • the fastening of the primary optics 22 to the carrier elements 15 takes place with the aid of two arms 24 provided on the rear side, which engage in corresponding guide tracks 19 on the profile part 15.
  • the cover in this case has a peripheral frame 51, which is fastened by means of a screw 52 on the underside of the lamp housing 10.
  • the frame 51 serves to hold two so-called coverings 53 and 55, which are formed by films or fabric.
  • these fabrics consist of a slightly flexible material, which allows a clamping in the frame structure 51 of the cover 50. This takes place, for example, with piping provided in the edge region of the coverings 53, 55, which can be hooked into corresponding channels of the profile frame 51.
  • both coverings 53 and 55 have a light-scattering effect, so that an extremely homogeneous light output over the entire surface is achieved by means of this two-fold additional control.
  • the clothing 53 and 55 are designed such that they additionally cause a sound insulation. This can be promoted in particular by the fact that the outer or lower clothing 55 is relatively well sound-permeable whereas the inner clothing 53 facing the housing 10 has a lower sound transmission. Accordingly, sound occurring from the outside or from the bottom onto the surface can penetrate into the intermediate space between the two coverings 53, 55, but is held captive here, so to speak, and accordingly no longer reflected back. In this way, the lamp also contributes to the improvement of the indoor climate, but where appropriate, the light exit area of the lamp 100 could also be designed otherwise.
  • FIG. 5a first shows the case that over the lamp daylight, which falls from the top of the lamp 100, is discharged. It can be seen that the rays entering via the open housing rear side are scattered by the optical elements 25, so that a uniform, homogeneous light output is achieved, which is additionally supported by the coverings 53 and 55 of the cover 50. Primarily responsible for the uniform delivery of daylight, however, are the optical elements 25. The mode of action is so good that the support elements 15 with the light sources are not or almost barely recognizable as dark stripes in the lamp.
  • both daylight and artificial light can actually be emitted with the luminaire 100 according to the invention, which leads to an extremely pleasant lighting situation.
  • White light LEDs are preferably used as light sources for the artificial light. However, it would also be conceivable that possibly a small part of the LEDs also emits colored light, which is then used to give the artificial light a certain color mood.

Landscapes

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

Claims (13)

  1. Lampe (100), avec
    un boîtier (10) qui définit un orifice de sortie de lumière (12), ainsi qu'avec des moyens lumineux (20, 21) disposés dans le boîtier (10),
    le boîtier (10) étant au moins partiellement translucide ou ouvert sur le côté arrière opposé à l'orifice de sortie de lumière (12), et l'agencement des moyens lumineux (20, 21) étant tel que la lumière entrant dans le boîtier (10) par le biais du côté arrière peut quitter le boîtier par le biais de l'orifice de sortie de lumière (12), et
    les moyens lumineux (20, 21) étant disposés sur plusieurs éléments porteurs (15) oblongs qui s'étendent à travers le boîtier (10) de façon essentiellement parallèle et espacée les uns des autres,
    des éléments optiques (25) destinés à agir sur la lumière traversant le boîtier (10) étant disposés dans les zones intermédiaires entre les éléments porteurs (15), caractérisée en ce que
    les éléments porteurs (15) servent également à supporter ces éléments optiques (25).
  2. Lampe selon la revendication 1,
    caractérisée en ce que
    le boîtier (10) est constitué à la façon d'un cadre et est de préférence de forme rectangulaire, en particulier carrée.
  3. Lampe selon l'une des revendications 1 ou 2,
    caractérisée en ce que
    les moyens lumineux sont formés par des LED (21).
  4. Lampe selon la revendication 3,
    caractérisée en ce que
    les éléments porteurs (15) pour les LED (21) sont formés par des parties profilées - de préférence en aluminium - qui sont respectivement fixées sur le boîtier (10) par leurs extrémités frontales.
  5. Lampe selon la revendication 4,
    caractérisée en ce que
    les parties profilées sont constituées à la façon de barrettes avec une zone de réception (16) pour la retenue de platines de LED (20) ainsi qu'avec une zone de barrette (17) s'écartant de la zone de réception (16) et constituée en tant que dissipateur thermique.
  6. Lampe selon l'une des revendications 3 à 5,
    caractérisée en ce que
    les éléments porteurs (15) servent en même temps à la retenue d'optiques primaires (22) pour les LED (21).
  7. Lampe selon l'une des revendications précédentes,
    caractérisée en ce que
    les éléments optiques (25) sont formés par des plaques oblongues qui présentent une structuration (27) destinée à agir sur la lumière pénétrante.
  8. Lampe selon l'une des revendications précédentes,
    caractérisée en ce que
    celle-ci présente un recouvrement(50) translucide dans la zone de l'orifice de sortie de lumière (12),
    le recouvrement(50) présentant un cadre (51) sur lequel sont tendus au moins deux matériaux (53, 55) translucides espacés l'un de l'autre - vu dans la direction de l'émission de lumière.
  9. Lampe selon la revendication 8,
    caractérisée en ce que
    les deux matériaux (53, 55) translucides exercent un effet de dispersion de la lumière.
  10. Lampe selon la revendication 8 ou 9,
    caractérisée en ce que
    les deux matériaux (53, 55) translucides présentent une perméabilité aux sons différente.
  11. Lampe selon la revendication 10,
    caractérisée en ce que
    le matériau translucide (53) tourné vers le boîtier (10) présente une perméabilité aux sons plus faible.
  12. Lampe selon l'une des revendications 8 à 11, caractérisée en ce que
    les matériaux (53, 55) translucides sont formés par des films ou des tissus.
  13. Dispositif destiné à l'éclairage d'une pièce ou d'un bâtiment, présentant une structure de paroi et/ou de plafond, qui est formé de telle sorte qu'il permet l'entrée de la lumière du jour, ainsi qu'au moins une lampe selon l'une des revendications précédentes disposée devant la structure de paroi et/ou de plafond.
EP14198436.9A 2013-12-23 2014-12-17 Lumière Active EP2886950B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201320105914 DE202013105914U1 (de) 2013-12-23 2013-12-23 Leuchte

Publications (2)

Publication Number Publication Date
EP2886950A1 EP2886950A1 (fr) 2015-06-24
EP2886950B1 true EP2886950B1 (fr) 2017-07-26

Family

ID=52231858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14198436.9A Active EP2886950B1 (fr) 2013-12-23 2014-12-17 Lumière

Country Status (3)

Country Link
EP (1) EP2886950B1 (fr)
AT (1) AT14748U1 (fr)
DE (1) DE202013105914U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015103195U1 (de) 2015-06-17 2016-09-20 Zumtobel Lighting Gmbh System zum Realisieren einer lichtdurchlässigen Fläche, sowie Beleuchtungssystem mit einem solchen System
US10101002B2 (en) * 2015-11-09 2018-10-16 Apple Inc. Light fixture with fabric layer having printed dots
DE202016104061U1 (de) * 2016-07-26 2017-10-27 Zumtobel Lighting Gmbh Leuchte mit veränderbarer Außenform

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US20070064425A1 (en) * 2005-09-21 2007-03-22 Frecska Sandor A Adjustable LED luminaire
US20120020112A1 (en) * 2009-03-30 2012-01-26 3Form, Inc. Light boxes with uniform light distribution

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US20120020112A1 (en) * 2009-03-30 2012-01-26 3Form, Inc. Light boxes with uniform light distribution

Also Published As

Publication number Publication date
EP2886950A1 (fr) 2015-06-24
AT14748U1 (de) 2016-05-15
DE202013105914U1 (de) 2015-03-24

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