EP3276251B1 - Éclairage ayant une forme extérieure modifiable - Google Patents

Éclairage ayant une forme extérieure modifiable Download PDF

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Publication number
EP3276251B1
EP3276251B1 EP17182910.4A EP17182910A EP3276251B1 EP 3276251 B1 EP3276251 B1 EP 3276251B1 EP 17182910 A EP17182910 A EP 17182910A EP 3276251 B1 EP3276251 B1 EP 3276251B1
Authority
EP
European Patent Office
Prior art keywords
light
lamp
lamp according
framework structure
cover
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
EP17182910.4A
Other languages
German (de)
English (en)
Other versions
EP3276251A1 (fr
Inventor
Sascha Skergeth
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 EP3276251A1 publication Critical patent/EP3276251A1/fr
Application granted granted Critical
Publication of EP3276251B1 publication Critical patent/EP3276251B1/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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F21V1/16—Covers for frames; Frameless shades characterised by the material
    • 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
    • F21S8/061—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a non-rigid pendant, i.e. a cable, wire or chain
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/02—Frames
    • F21V1/06—Frames foldable or collapsible
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/02—Frames
    • F21V1/08—Frames adjustable
    • 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
    • F21V15/012—Housings with variable shape or dimensions, e.g. by means of elastically deformable materials or by movement of parts forming telescopic extensions of the housing body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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
    • F21Y2113/20—Combination of light sources of different form
    • 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 whose outer shape is changeable.
  • the adjustability is limited to the fact that, for example, a means for emitting light is articulated on a carrier or the like, in which case the position of the illuminants can be adjusted accordingly.
  • a spotlight or a lamp head can be pivoted relative to a support structure or the like.
  • the possibility of influencing the overall shape of a lamp as a whole does not exist with such solutions.
  • a closed luminaire housing in particular, its shape cannot generally be influenced.
  • a lamp integrated into a ceiling system the ceiling system consisting of a flexible material which is suspended on its outer circumference in a scaffold structure.
  • the flexible material can be influenced in terms of its three-dimensional shape by means of vertically movable elements or weights, in one variant a height-adjustable lamp unit is provided, up to the outer circumference of which the flexible material extends.
  • the use of a flexible material to form at least part of the outer shell of a lamp is also from the US 2004/0070967 A1 , the DE 10 2011 003 105 A1 , the DE 20 2007 015 754 U1 the DE 199 43 478 A1 known.
  • the DE 20 2009 015 135 U1 shows a flexible lampshade whose material is folded and folded at regular intervals so that a change in shape can be made. Furthermore, from the DE 10 2008 017 271 A1 a lamp is known which has a plate-shaped light guide with a recess in which a lighting device is received.
  • the object of the present invention is to provide a novel luminaire whose outer shape can be better influenced.
  • the luminaire according to the invention is characterized in that it has a framework structure which is at least partially covered with a flexible material that forms a cover for the luminaire.
  • This flexible material is fixed to the framework structure at its edge region, wherein at least one shaping element is also arranged on the framework structure, which is adjustable, and the covering material is also fixed to this shaping element.
  • a luminaire with a scaffold structure and a lighting unit held by the scaffold structure is proposed, at least a partial area of the cover of the luminaire being formed by a covering, which is formed from a material and is fixed to the scaffold structure at its edge area, wherein at least one shaping element is arranged on the framework structure, on which the covering material is also fixed, and the shaping element is adjustable.
  • the shaping part protrudes on both sides over a plane defined by the framework structure, the framework structure being covered with the flexible material on both sides and the material being fixed in each case to the protruding regions of the shaping element.
  • the lamp cover is formed by a flexible material, the cover can adapt to the position of the shaping element.
  • the housing takes on a corresponding external shape depending on the arrangement and / or orientation of the shaping element, it being possible to also subsequently influence the exterior of the lamp by correspondingly adjusting the shaping element.
  • An overall closed luminaire body can thus be achieved, in the interior of which further components, in particular the components responsible for the light emission, can be arranged, but the outer shape of which can be adapted in the desired manner.
  • the covering material is at least partially translucent, the luminaire then having illuminants in order to emit light via the covering material.
  • the outer shell of the luminaire which can be changed in terms of its shape, can also be used for flat, preferably diffuse light emission.
  • the scaffold structure has a plate-shaped light-guiding element which is designed to emit light via at least one flat side and is covered on this flat side by the flexible material of the cover. Illuminants are then arranged in such a way that light which is emitted by these illuminants enters the light-guiding element and is emitted via the corresponding flat side.
  • the light guide element has an opening or recess in which the lighting unit is arranged, the lamps being distributed around the periphery of fastening elements of the lighting unit and facing an edge surface of the recess of the light guide element.
  • the lighting unit may have additional means for directed light emission, which have a light exit opening, the cover extending to the edge of this light exit opening.
  • the means for directional light emission comprise a spotlight which forms the adjustable shaping element according to the invention.
  • the adjustable spotlight can also be used at the same time to influence the external shape of the lamp.
  • the light outlet opening of the spotlight is harmoniously embedded in the outer shell of the lamp, so that the lamp has an extremely appealing appearance overall.
  • the radiator according to the invention can be gimbal-mounted.
  • the cover used according to the invention preferably consists of a bidirectionally flexible textile material.
  • the scaffold structure can have an outer frame to which the covering material is fastened, for which purpose, for example, the frame has at least one outwardly facing groove in which the covering material is suspended with a piping provided on the covering material.
  • the lamp according to the invention there are various ways of realizing the lamp according to the invention. In particular, there is great freedom in the design of the scaffolding structure and the lighting units used. It can further be provided that the lamp also has several lighting units.
  • Figure 1 shows a lamp provided generally with the reference numeral 1, in which the inventive concept is used.
  • the luminaire 1 is designed as a pendant luminaire, since here - as can be clearly seen from the following description - the advantages of the solution according to the invention are particularly effective.
  • the present invention in the form of other types of luminaires, for example as a surface-mounted or recessed ceiling luminaire or as a floor or table lamp.
  • the framework structure described in more detail below may only be spanned with the cover on one side.
  • the actual luminaire body 5 is suspended with the aid of a narrow, elongated ceiling-mounted housing 3, which is mounted directly on a support element, for example on the ceiling of a room or the like.
  • a ceiling-mounted housing 3 could, however, possibly also be dispensed with.
  • the ceiling-mounted housing 3 also serves to accommodate operating devices for the power supply, the suspension of the lamp body 5 then taking place via ropes 4 which extend downward from the two end regions of the ceiling-mounted housing 3.
  • these ropes 4 serve not only for mechanical purposes Holding the lamp body 5 but also the power supply of the units arranged in the lamp body 5, which are responsible for the light emission.
  • the special feature of the luminaire 1 according to the invention is the design or the shape of the luminaire body 5 and the manner in which the light is emitted.
  • the shape of the luminaire body 5 is initially characterized in that an elongated basic structure, which is rectangular in the present case and which forms a — here horizontal — central plane E of the luminaire body 5 is formed by a framework structure described in more detail below.
  • the framework structure On both sides of this level E, the framework structure is spanned by a cover 10, which is fixed on the one hand with its edge region to the frame of the framework structure, but on the other hand is spanned or fixed on both sides of shaping elements projecting beyond the plane E. Since the material of the cover 10 is flexible, it follows in a curved manner the paths predetermined by the framework structure or the frame of the framework structure and by the shaping elements, so that the recognizable three-dimensional design of the exterior of the lamp body 5 ultimately results. In the following it will be explained in detail how this special, extremely appealing design of the surface can be achieved.
  • the lamp body 5 Another peculiarity of the lamp body 5 is namely the way in which light is emitted.
  • illuminants are initially provided, with the aid of which light can be emitted over a large area and preferably diffusely via the translucent cover 10.
  • the flexible covering material is designed to be translucent, with illuminants, which are described in more detail below, then being arranged in the interior of the lamp body 5 enclosed by both coverings, with the aid of which light is emitted diffusely as far as possible over the entire cover 10.
  • the diffuse light is emitted via the cover 10 both to the underside and to the top, since in both cases the identical translucent material is used for the covering.
  • both materials, which are used for covering the underside and for covering the upper side differ from one another and, for example, light is emitted only in one direction.
  • the material for realizing the luminaire cover 10 is completely opaque and, accordingly, no planar light emission is provided.
  • the luminaire 1 shown also has further means, by means of which light can be directed and preferably emitted in a specific direction.
  • these lighting units are arranged in such a way that a directed light emission is provided towards the underside, although it would of course also be conceivable to arrange or orient at least some lighting units in such a way that light is emitted directed towards the upper side, for example in order to specifically target a specific area to lighten the ceiling.
  • the covering material forming the cover is now designed such that it extends from the frame, that is, the circumference of the framework structure, to these light exit openings of the lighting units, but does not cover them.
  • light exit openings of the lighting units preferably also form light outlet openings 11 of the lamp cover 10 at the same time and the covering material does not influence the light output realized by the lighting units, although it would also be conceivable that the covering material would cover the light exit openings of the lighting units and at least in these areas is that it has little or no influence on the directional light output.
  • the lighting units described in more detail below also simultaneously represent the shaping elements already mentioned above, with the aid of which the three-dimensional design of the surface of the lamp body 5 is achieved.
  • further shaping elements could also be provided on the scaffolding structure, which do not emit light, but are specifically used to influence the shape of the luminaire body 5 due to the effect already described above by correspondingly protruding from the plane E of the scaffolding structure.
  • the framework structure forms an elongated, rectangular basic shape, on which the further units, in particular the lighting units for direct light emission and optionally additionally or alternatively provided shaping elements are attached without a lighting function.
  • the concept according to the invention can be implemented in a significantly more versatile manner and, of course, the number of lighting units used for the directional lighting or the number of shaping elements can also be freely selected.
  • the basic shape of the lamp body 5 predetermined by the framework structure does not have to be rectangular or square, but could have any shape. In particular, a polygonal or generally a polygonal shape or an oval or elliptical shape, in particular a circular shape, would be conceivable.
  • the Figures 2 and 3 initially show two views of the lamp 1 in a state in which the two covers 10 and coverings described above have been removed. Especially the perspective view of Figure 3 the frame-like framework structure 20 can be removed, by means of which the peripheral shape of the lamp body 5 is determined. It can also be seen that a total of six lighting units 50 are used in the case shown. As already mentioned, these lighting units 50 serve, in particular, for direct or directed light emission to the underside, but at the same time they also have other means for generating light, with the aid of which light is emitted across the lamp covers 10.
  • the central element of the scaffold structure 20 is a plate-shaped light guide 25 which is surrounded at its edge by frame parts 30 which are mitred in the corner regions and are joined to form a frame 21 surrounding the light guide 25.
  • This frame 21 is used to hang the scaffold structure 20 on the ropes 4, which will be described later.
  • the frame parts 30 also serve to hang the covering material.
  • the plate-shaped light guide 25 should be as light and thin as possible and accordingly has a thickness of only a few millimeters in the present case, its stability is rather low even in cooperation with the frame 21.
  • a reinforcement 22 extending centrally in the longitudinal direction on the upper side of the light guide 25 is therefore provided. This is at its end areas - as in Figure 3 recognizable - coupled with the circumferential suspension ropes 4. Since the reinforcement 22 is screwed to the light guide plate, this results in an overall sufficiently stiff or stable construction, in which an undesired bending of the frame structure 20 is prevented despite the not inconsiderable length of the lamp body 5.
  • the Reinforcement 22 also has the advantage that it can be used for accommodating components for powering the lighting units 50.
  • these lighting units 50 are responsible for the direct or directed illumination towards the underside, on the other hand, however, they also have means for generating light, by means of which the above-mentioned planar light emission takes place via the lamp cover 10. Strictly speaking, these further means for generating light are designed such that they couple light into the light guide 25. Within this light guide 25, the light is then distributed as uniformly as possible by multiple reflections in a known manner, then coupled out flat across the top and bottom of the light guide 25 and finally emitted via the cover 10. As already mentioned, depending on the type of light emission desired, it can be provided that light is emitted only via one of the two flat sides of the light guide plate 25.
  • the light is decoupled from the light guide plate 25 in a known manner in that its surface (s) is or are provided with special decoupling structures which deflect the incident light in such a way that it is no longer totally internally reflected, but instead via one of the flat sides can leave the light guide plate 25.
  • FIGS Figures 7a to 7e Views of an individual lighting unit in the state not mounted on the light guide 25 are shown in FIGS Figures 7a to 7e shown.
  • the actual light output for direct lighting takes place by means of a cylindrical spotlight 60, which has a circular light exit opening 62 on the front or underside of its cylindrical housing 61, via which the light output takes place.
  • the sectional representation of FIG Figure 5 or 6 an LED circuit board 64 arranged within the spotlight housing 61 with an associated LED 65 or an LED cluster as a light source, this LED 65 being preceded by a lens 66 with the aid of which the LED light collimates, that is to say it is shaped into an approximately parallel beam which is then emitted via the light exit opening 62.
  • the lens is a so-called TIR lens, which has already been known for a long time, although obviously, as an alternative to the illustrated embodiment of the radiator 60, other optical systems could also be used, with the aid of which direct, directed light emission can be achieved.
  • Each lighting unit 50 thus has a radiator 60 which, as for example the sectional representations of FIG Figures 4 to 6 can be removed - such is positioned such that it is arranged approximately in the center of the plane of the light guide plate 25 and thus plane E of the framework structure 20. That is, the radiator 60 projects beyond the horizontal plane E of the framework structure 20 both towards the bottom and towards the top.
  • the light guide plate 25 each has a circular receptacle - or assembly opening - in which a lighting unit 60 is then mounted.
  • the cylindrical housing 61 of the radiator 60 is gimbally suspended, so that the radiator 60 can be pivoted freely and thus the directional light emission can be aligned.
  • a rigid holder or a holder that only allows pivoting about a single axis would also be conceivable for at least some of the radiators 60.
  • the radiator 60 is fastened together with the means for the cardanic suspension 70 via a plurality of ring-like mounting elements, which are shown in particular in the sectional view of FIG Figure 6 are recognizable.
  • a first, annular, angled fastening part 75 is provided, which is designed in such a way that it rests with a lower, horizontal leg 76 on the underside of the light guide plate 25. From this horizontal leg 76 extends on its inner circumference a second vertical leg 77, which initially has two mutually opposite openings 78, into which suspension elements 71 of the gimbal bracket 70 engage.
  • LED boards 90 which are uniformly distributed over the circumference and are directed outwards are provided on the circumferential wall of the vertical web 77 and are directed outwards (see Figures 7a and 7c ).
  • an upper mounting ring 80 is provided, which can be connected to the angled fastening part 75 by means of a plurality of screws 81. Furthermore, a further spacer ring 85 is provided below the upper mounting ring 80 and is positioned between the underside of the ring 80 and the top of the light guide 25.
  • the lighting unit is then assembled by first attaching the angled fastening part 75 with the gimbal mount 70 attached to it and the radiator 60 from the underside to the mounting opening of the light guide 25.
  • the spacer ring 85 is then placed from the top and ultimately the second mounting ring 80 with the aid of the Screws 81 connected to the lower angled fastening part 75.
  • the mounting opening of the light guide 25 and the corresponding fastening parts for the lighting unit 50 do not necessarily have to be circular, but can also have a different shape, for example a square shape.
  • the LED boards 90 are positioned and aligned in such a way that they lie opposite the edge region of the mounting opening of the light guide 25, that is to say the inner peripheral surface 26.
  • the LEDs 91 are activated, the light is thus coupled into the light guide 25 via the edge region of the mounting opening. It is also advantageously provided that - as again in Figure 6 recognizable - those areas of the angled fastening part 75 and the spacer ring 85, between which the light guide 25 is clamped, are provided with a ring-like reflecting element 79 and 86, respectively.
  • This measure also contributes to the fact that the flat light guide 25 is illuminated uniformly and ultimately the luminaire cover 10 then appears with a uniform brightness.
  • a uniform light output via the lamp cover 10 is also optimized in that - as in particular with the aid of Figure 3 recognizable - the lighting units 60 are positioned as evenly as possible in the plane of the light guide plate 25. At the same time, however, this positioning of the lighting units 50 also allows them to be supplied with electricity in a simple manner, as will be explained in more detail below.
  • the ropes 4 then extend above the light guide 25 to the central reinforcement 22 and are electrically coupled here to further lines and units used for the power supply, which lead to the lighting units 50 along the reinforcement.
  • the central reinforcement 22 is U-shaped and thereby contains an elongated receiving space for further power supply units for the power supply of the lamps.
  • These can be small circuit boards or electronic components which finally convert the supply voltage supplied via the suspension cables 4 into a suitable voltage for the operation of the LEDs 65 of the radiators 60 and the LEDs 91 responsible for coupling light into the light guide 25.
  • an operating device arranged in the ceiling-mounted housing 3 first converts the general mains supply voltage into a low-voltage supply voltage, which is supplied to the lamp body 5 via the suspension cables 4.
  • the actual power supply of the lighting units 50 then takes place by means of the further electronic components which are positioned in the central reinforcement 22.
  • the directional light output can be set independently of the flat and possibly diffuse light output realized via the cover 10.
  • a corresponding additional transmission of control information may then be required for this, which may then require the use of additional lines for signal transmission or for a separate power supply for the corresponding lamps.
  • an extension of this could also be provided for the intensity and / or color or color temperature of the illuminants to be adjustable.
  • the resulting arrangement is then covered with the flexible material which forms the cover 10 of the lamp body 5.
  • a so-called bidirectionally flexible textile material is preferably used for this purpose, which is therefore stretchable in two mutually perpendicular directions of the material plane.
  • the material can, in particular, be made translucent if it is diffuse Brightening of the lamp body 5 is desired.
  • a patterned material or even an opaque material could also be used for this, different materials with different optical properties possibly being used for the upper side of the lamp body 5 and the lower side.
  • the material is braced with the framework structure 20 over its circumference on the one hand, on the other hand it extends to the lighting units 50 and is supported or also fixed there, so that the outer cover 10 of the lamp body 5 ultimately the Figure 1 recognizable form.
  • the covering material 10 is clamped to the frame 30 in that the frame parts - as for example in FIG Figure 8 or Figure 9 recognizable - are designed in such a way that two outwardly open longitudinal grooves 31 and 32 are formed, which serve to hang in the edge region of the covering material 10.
  • the covering as shown by Figure 9 at its edge area a so-called. piping 12, which is inserted into the outwardly directed groove 32.
  • the covering material wraps around the outwardly directed lower edge of the frame part 30, so that it is firmly attached here. Since the covering material 10 is preferably suspended in the frame parts 30 over its entire circumference in the manner described above, it is accordingly under tension, so that it is adequately fixed to the frame parts 30 by this measure.
  • a T-shaped cover 35 is then placed on the frame parts 30, which engages with a central web 36 in a corresponding receiving opening of the frame part 30 and here is jammed.
  • This frame 35 primarily closes the frame all round, the frame 35 is not absolutely necessary for holding the covering material.
  • the covering material braced in this way with the frame 21 then covers both the top and the bottom of the framework structure 20, which is formed in particular by the flat light guide 25 and the frame 21 and the reinforcement 22.
  • the covering or cover 10 is, however, also accurate on the lighting units 50 taken on the front or rear sides of the radiators 60, so that the lighting units 50 projecting beyond the plane of the light guide plate 25 achieve a special curved, three-dimensional shape of the cover.
  • the cover 10 in this case has recesses or openings corresponding to the light exit opening 62 of the radiator 60 and to the circular rear side of the radiator 60.
  • the cover 10 is fastened to the spotlight 60 in the region of the light exit opening 62 with the aid of two clamping rings 67 and 68 which engage in one another in such a way that they can be clamped or locked together, but at the same time can also be fastened to the spotlight housing 61.
  • the edge area of the covering material is first inserted into the inner area of the outer ring 67.
  • the second clamping ring 68 is inserted from the opposite side, so that it engages with the outer ring 67 and clamps the textile material between them.
  • the arrangement consisting of the two rings 67 and 68 with the covering material clamped therein is then placed on the front end region of the cylindrical lamp housing 61. As a result, the covering material is flush with the light exit opening 62 of the radiator 60.
  • the covering material is fixed on the back of the lamp by virtue of the fact that this in turn has an opening, the size of which is dimensioned somewhat smaller than the outer circumference of the rear lamp housing 61.
  • This has a removable cover 69, which is attached to the lamp housing 61 with the aid of a screw 69a can be fixed.
  • the covering material is thus positioned in such a way that it lies at least in the edge area on the back of the radiator housing 61.
  • the rear cover 69 is then screwed on, so that the covering material is also fixed to the radiator 60 here.
  • the anchoring of the covering material on the frame 21 on the one hand and the radiator 60 on the other hand is only shown in FIGS Figures 5 and 9 partially shown.
  • the covering material is clamped on the one hand between the peripheral frame 21 and on the other hand on the lighting units 50, such that the flexibility of the material results in a curved surface design of the cover 10, which follows the positioning of the lighting units 50.
  • the spotlights 60 are adjustable due to the gimbal suspension mentioned, in particular can thus be aligned in the desired manner in order to emit light in a very specifically selected angular range. Due to the flexibility of the covering material, this can follow an adjustment of the emitters 60, so that despite the different alignment of the emitters 60, a closed lamp cover is basically achieved, apart from the light emission openings 11.
  • the gimbal for the radiators 60 is chosen such that they maintain the set orientation despite the tension of the cover 10. A certain friction of the gimbal suspension elements is therefore required for this, or corresponding latching means are provided, which lock the emitters 60 accordingly in the set orientation.

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

Claims (12)

  1. Éclairage (1) comprenant une structure de châssis (20) ainsi qu'une unité d'éclairage (50) maintenue par la structure de châssis (20),
    au moins une partie d'une enveloppe (10) de l'éclairage (1) étant formée par une tenture constituée d'un matériau flexible fixé par ses bords à la structure de châssis (20),
    au moins un élément de mise en forme, sur lequel le matériau de tenture est également fixé, étant agencé sur la structure de châssis (20),
    ledit élément de mise en forme étant réglable,
    caractérisé en ce que
    l'élément de mise en forme fait saillie des deux côtés d'un plan (E) défini par la structure de châssis (20),
    ladite structure de châssis (20) étant recouverte des deux côtés et le matériau étant fixé à l'élément de mise en forme respectif.
  2. Éclairage selon la revendication 1,
    caractérisé en ce que
    le matériau de tenture est au moins translucide, l'éclairage (1) présentant des moyens d'éclairage (90, 91) destinés à émettre de la lumière à travers le matériau de tenture.
  3. Éclairage selon la revendication 2,
    caractérisé en ce que
    la structure de châssis (20) présente un élément guide de lumière (25) en forme de plaque conçu pour émettre de la lumière par au moins un côté plat et recouvert sur ce côté plat par le matériau flexible de l'enveloppe (10),
    lesdits moyens d'éclairage (90, 91) étant disposés de façon que la lumière émise par ces moyens d'éclairage (90, 91) pénètre dans l'élément guide de la lumière (25).
  4. Éclairage selon la revendication 3,
    caractérisé en ce que
    l'élément guide de lumière (25) présente une ouverture ou un évidement dans lequel est disposée l'unité d'éclairage (50), lesdits moyens d'éclairage (90, 91) étant répartis sur la périphérie d'éléments de fixation de l'unité d'éclairage (50) et étant disposés en regard d'une surface de bord (26) de l'évidement de l'élément guide de lumière (25).
  5. Éclairage selon l'une des revendications précédentes,
    caractérisé en ce que
    l'unité d'éclairage (50) présente des moyens d'émission de lumière directionnelle présentant une ouverture de sortie de lumière (62), l'enveloppe s'étendant jusqu'au bord de l'ouverture de sortie de lumière (62).
  6. Éclairage selon la revendication 5,
    caractérisé en ce que
    les moyens d'émission de lumière directionnelle comprennent une source de rayonnement (60).
  7. Éclairage selon la revendication 6,
    caractérisé en ce que
    la source de rayonnement (60) constitue l'élément de mise en forme réglable.
  8. Éclairage selon la revendication 7,
    caractérisé en ce que
    la source de rayonnement (60) est montée à la Cardan.
  9. Éclairage selon l'une des revendications précédentes,
    caractérisé en ce que
    l'enveloppe est constituée d'un matériau textile à flexibilité bidirectionnelle.
  10. Éclairage selon l'une des revendications précédentes,
    caractérisé en ce que
    la structure de châssis (20) présente un cadre extérieur (21) auquel est fixé le matériau de tenture.
  11. Éclairage selon la revendication 10,
    caractérisé en ce que
    le cadre (21) présente au moins une gorge (31, 32) tournée vers l'extérieur dans laquelle le matériau de tenture est accroché au moyen d'un bourrelet (12) prévu sur le matériau de tenture.
  12. Éclairage selon l'une des revendications précédentes,
    caractérisé en ce que
    ledit éclairage comporte plusieurs unités d'éclairage (50).
EP17182910.4A 2016-07-26 2017-07-25 Éclairage ayant une forme extérieure modifiable Active EP3276251B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016104061.2U DE202016104061U1 (de) 2016-07-26 2016-07-26 Leuchte mit veränderbarer Außenform

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017107350U1 (de) * 2017-10-23 2019-01-24 Zumtobel Lighting Gmbh Leuchte mit Beleuchtungseinheit sowie einer die Beleuchtungseinheit umgebenden Abdeckung
WO2019231501A1 (fr) * 2018-06-01 2019-12-05 Contemporary Visions, LLC Système d'éclairage

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4835914A (en) * 1987-02-27 1989-06-06 Fernand Scherrer False ceiling constituted by a stretched sheet fixed along its edges to a support frame
US20040070967A1 (en) * 2002-08-06 2004-04-15 Sheila Kennedy Acoustic light emitting module
DE102008017271A1 (de) * 2008-04-04 2009-10-08 Osram Gesellschaft mit beschränkter Haftung Leuchtvorrichtung und Leuchte

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Publication number Priority date Publication date Assignee Title
DE19514365A1 (de) * 1994-04-19 1995-10-26 Aeg Lichttechnik Gmbh Innenleuchte
JP2001067911A (ja) * 1999-08-25 2001-03-16 Shigeo Tamaoki 装飾用照明具
DE19943478C2 (de) * 1999-09-10 2002-11-28 Manfred Kluth Beleuchtungskörper mit teilweise lichtdurchlässigen Folien
DE102007025698A1 (de) * 2007-06-01 2008-12-04 Ingo Wendt Fuktional gesteuerte Raumpunktleuchte
DE202007015754U1 (de) * 2007-11-09 2009-03-26 Vector Foiltec Gmbh Folienkissenanordnung
DE202009015135U1 (de) * 2009-11-06 2010-02-04 Sauritz, Silke Formflexibler Lampenschirm
DE102011003105A1 (de) * 2010-01-25 2012-05-10 Zumtobel Lighting Gmbh Leuchte mit Textilelement
CN103617770A (zh) * 2013-11-18 2014-03-05 张敬国 发光旗帜
DE202013105914U1 (de) * 2013-12-23 2015-03-24 Zumtobel Lighting Gmbh Leuchte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835914A (en) * 1987-02-27 1989-06-06 Fernand Scherrer False ceiling constituted by a stretched sheet fixed along its edges to a support frame
US20040070967A1 (en) * 2002-08-06 2004-04-15 Sheila Kennedy Acoustic light emitting module
DE102008017271A1 (de) * 2008-04-04 2009-10-08 Osram Gesellschaft mit beschränkter Haftung Leuchtvorrichtung und Leuchte

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DE202016104061U1 (de) 2017-10-27
AT15730U1 (de) 2018-05-15

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