WO2001020224A1 - Dispositif d'eclairage - Google Patents

Dispositif d'eclairage Download PDF

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Publication number
WO2001020224A1
WO2001020224A1 PCT/DE2000/003012 DE0003012W WO0120224A1 WO 2001020224 A1 WO2001020224 A1 WO 2001020224A1 DE 0003012 W DE0003012 W DE 0003012W WO 0120224 A1 WO0120224 A1 WO 0120224A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting fixture
film
fixture according
ceiling
frame element
Prior art date
Application number
PCT/DE2000/003012
Other languages
German (de)
English (en)
Inventor
Manfred Kluth
Original Assignee
Manfred Kluth
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7921603&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001020224(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Manfred Kluth filed Critical Manfred Kluth
Priority to EP00971247A priority Critical patent/EP1214547A1/fr
Priority to AU10179/01A priority patent/AU1017901A/en
Publication of WO2001020224A1 publication Critical patent/WO2001020224A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/32—Translucent ceilings, i.e. permitting both the transmission and diffusion of light
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B2009/0492—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like with fabrics tensioned on 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
    • 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

Definitions

  • the invention relates to a lighting fixture consisting of at least one light source and at least one individual frame element which is attached to a ceiling and / or wall and is at least partially covered with a first, partially translucent, film
  • Lighting fixtures of the type mentioned are known, for example, for suspended ceilings. These devices generally have a circumferential frame element that corresponds to the dimensions of the room and is attached to the wall or ceiling. A plastic film is stretched on this frame element so that from below only the The film is visible. One or more lamps are arranged above the film, the translucent film allowing light to pass through. The film thus hides the lamps and the ceiling on the one hand and diffuses the light on the other, so that diffuse lighting conditions arise in the room
  • Such lighting fixtures have the disadvantage, however, that dirt and dust particles, as well as dead insects accumulate very quickly on the top of the film, which are then visible from below as dark spots.
  • the lighting fixtures become unsightly very quickly as a result and have to be removed regularly and with great effort
  • the light is scattered unevenly by the insects and dirt particles, so that the lighting conditions in the room deteriorate.
  • outlines of the light sources may be discernible or an undesirable shadow formation may occur
  • the object is achieved in that a second, partially translucent film is arranged between the light source and the first film, the surfaces of the two films running at least approximately parallel and being spaced apart
  • the arrangement of a second translucent film between the light source and the first film ensures that dirt and dust particles, as well as insects on the after Place the surface of the second film facing upwards and not on the surface facing upwards of the first film below. If a suitable distance is maintained between the two films, the first film below is completely illuminated due to the scattering of the light by the second film that the disruptive deposits are no longer visible from below. In addition, it is ensured that a uniformly scattered, diffuse light emerges from the first film, which allows homogeneous and shadow-free illumination of the room.
  • the lighting of the invention ensures that the room is optimally illuminated without visible contamination insofar as it is ensured over a long period of time without time-consuming cleaning.
  • the use of the second, partially translucent film not only avoids the detection of contaminants by an observer, but also the uniform Illumination of the room due to the double scattering of the light is significantly improved compared to the prior art.
  • Another advantage of the lighting fixtures according to the invention is that sound waves are effectively absorbed in the space between the two foils by multiple reflection and interference effects. The lighting fixtures therefore also have a positive effect on the Acoustics of the room, since sound reflections are often a problem, especially with suspended ceilings
  • Improved scattering of the light is also advantageously achieved in that the at least one film has a pimpled structure on at least one side or that the at least one film has a microperforation Multiple scattering achieved with the walls of the lighting fixture or the ceiling, which leads to an almost complete dissolution of the shadow formation, whereby the illumination in the room can be significantly improved and optimized.
  • the effect of the pimpled structure and that of the microperforation becomes particularly effective when two spaced foils are used and the film arranged closer to the light source is equipped with the pimpled structure or microperforation.
  • the microperforation represents the sound-absorbing properties of the lighting fixtures according to the invention also particularly influenced and improved
  • the microperforation can, for example, already be present in the lower, visible film in order to optimally utilize the sound-absorbing properties.
  • the openings must be large enough to absorb the sound waves through multiple reflection and interference formation in the space between the films, but must not be so large that insects or dust particles can enter
  • the frame element has a geometric body, for example a sphere, a cube, an ellipse or a triangle, or forms an irregular body.
  • the frame element forms a flat square or rectangle, which is used as a ceiling or wall element, it being possible for a plurality of frame elements to be arranged next to one another
  • a distance of 2 to 20 cm, preferably approx. 4 cm, between the two foils has proven to be optimal in the lighting fixture according to the invention. If this spacing is maintained, the light is sufficiently scattered by the second foil so that the first foil is optimally illuminated, so that A diffuse and homogeneous light is created Dark spots or soiling on the second film are absolutely no longer recognizable from below by a viewer in this particularly advantageous embodiment.
  • the film spacing can be constant or different in order to adapt to the respective shape of the lighting fixtures or special ones Desires to be taken into account when illuminating
  • the second film is stretched dust-tight on the open boundary surface of the frame element facing the ceiling or wall or an additional frame element parallel to this and that the first film is stretched dust-tight on the frame element and the space between The second film can therefore be stretched parallel to the first film on the opposite boundary surface of the frame element.
  • the compact unit further simplifies assembly and makes replacement easier.
  • This embodiment must ensure that no dirt particles can penetrate into the space between the two foils, so that not only the two foils must be stretched out dust-tight, but also a seal is required when connecting the two frame elements.
  • the distance between the two films can be selected independently of the thickness of the frame element
  • the foils are permeable to light of any wavelength, so that when the illumination is switched on a broad spectrum of light is transmitted.
  • UV radiation is filtered out below 380 nm so that, for example, sensitive materials cannot be bent
  • ultraviolet and infrared light can also be transmitted in the border area, giving the viewer the impression of natural light.
  • films made of translucent plastic for example PVC, preferably very thin films with a thickness of preferably 0 , 25 mm are used.
  • Such films are not only transparent to visible light of any wavelength, but also very flexible, so that they can be easily stretched onto the frame element without tearing.
  • a light source can be arranged laterally, off-center or centrally above the foils, or several light sources, regularly or irregularly spaced apart, can be assigned to a ceiling or wall element
  • the light source it is particularly advantageous if it emits predominantly filtered light in a colored area, since different light colors are perceived by the viewer with different intensities and are therefore perceived as particularly pleasant.
  • the light source can, for example, also be equipped with a filter
  • the light source can also be equipped with a lamp be provided, which is at least partially coated with a transparent color, so that the emitted light can also be influenced thereby
  • the light source consists of several colored illuminants, each of which can be individually influenced in their intensity, whereby the color temperature of the diffusely emitted light can be controlled.
  • Such light sources emit a frequency and intensity spectrum from, which corresponds to that of natural light and is therefore perceived as particularly pleasant.
  • Such light sources intensify the scattering effect of the foils, so that the lighting of the room is very similar to natural light.
  • the lighting fixtures can be flexibly and optimally adapted to the spatial conditions be adapted, in particular the production of a single, large and heavy construction is avoided.
  • the ceiling elements can be standardized in terms of production regardless of the rooms to be equipped, whereby the production is cheaper and the assembly is simplified.
  • the frame elements are more adjacent Ceiling or wall elements are advantageously connected to one another.
  • the ceiling or wall elements can either be attached directly to the ceiling or wall with their frame element or, preferably for suspended ceilings, via T- or L-shaped support rails on which the frame elements of the ceiling elements are placed or fastened with the Ceiling connected
  • the mounting rails can be detachably connected to the ceiling or wall using a holding rod.
  • the ceiling or wall elements can be attached, for example, by means of a clamp connection or a screw connection
  • a stable and dust-tight attachment of the foils to the frame element is achieved in that the foils at least partially have a piping in the edge region, which is clamped in a clamping device or recess of the frame element.
  • Edge area of the films at least partially by means of a Form-fitting profile strip or a plug is clamped or glued into a recess in the frame element. Both embodiments have the advantage that both dust-tight and extremely stable fastening of the foils to the frame element is ensured.
  • the foils can be mounted quickly and easily during assembly
  • the frame elements consist of a material with a low weight, for example aluminum.
  • an aluminum frame for example, has a very low weight, so that the ceiling elements are only light make demands on the means for fastening to the ceiling or wall. This enables easy and inexpensive installation of the lighting fixtures
  • FIG. 1 shows a perspective and partially sectioned view of a lighting fixture without a light source
  • Figure 2 is a sectional side view of a lighting fixture according to
  • Figure 3 is a sectional side view of a lighting fixture with a pimpled film
  • FIG. 4 shows an enlargement of a section of the pimpled film according to FIG. 3
  • Figure 5 is a sectional side view of a lighting fixture with a perforated film
  • Figure 6 is an enlarged detail of a film with microperforation
  • Figure 1 shows a perspective view of a lighting fixture 1 without a light source, consisting of a circumferential frame element 2 and two foils 3, 4 stretched on this frame element 2.
  • the circumferential frame element 2 which can be square or rectangular, for example, consists of a material with a low weight , for example made of aluminum.
  • the frame element 2 also has special fastening devices 5, which are used to fasten the foils 3, 4.
  • a first foil 3 is stretched onto the downward, open boundary surface of the frame element 2.
  • Parallel to this first foil 3 is a second foil 4 stretched onto the upper, open boundary surface of the frame element 2.
  • Both foils 3, 4 consist of translucent plastic, for example PVC, which is permeable to light of any wavelength.
  • the foils 3, 4 are not transparent, however, so that when viewed from below, the one not shown here Blanket and the Light source, also not shown, are not visible.
  • the second film 4 prevents the deposit of falling, dead insects and dust and dirt particles on the lower first film 3.
  • the contaminants are already deposited on the second film 4, so that the first film 3 and the space 6 lying between the two foils 3, 4 can be kept free of dirt.
  • the light is already so strongly scattered by the second foil 4 that the first foil 3 is complete and
  • the distance d between the two foils 3, 4 should not be less than 2 cm, so that the contaminants on the second foil 4 can no longer be perceived by a viewer looking at the first foil 3 from below.
  • Particularly advantageous for an optimal illumination has been found a distance of about 4 cm above
  • the double light scattering when passing through the two foils 3, 4 transmits a very uniform and diffuse light, which gives the impression of natural light
  • the second film 4 can be particularly modified, since this is not visible to an observer.
  • the second film 4 can have light distribution points in the form of a nub-like embossing, which additionally scatter the light passing through Lighting fixture 1 also has the advantage that it has sound-absorbing properties has because the sound waves are not only reflected but mostly absorbed.The sound waves are absorbed by multiple reflection between the two films.
  • This effect can be enhanced by adding the second film 4, which is not visible to a viewer, or alternatively the first film 3 A micro perforation or the like is provided
  • the small openings in the first 3 or second film 4 ensure increased reflection and in particular interference formation, so that the sound waves are effectively extinguished. These openings must either be so small that no insects or dirt particles in the Room 6 can enter, or they must be at least partially covered on the inside with a fleece or another film
  • FIG. 2 shows a sectional side view of the lighting fixture 1 according to FIG. 1 with the ceiling 10 lying above and the light source 11 attached to it.
  • the light source 11 is arranged centrally above the ceiling element 12, which consists of the frame element 2 and the two foils 3, 4.
  • the light source 11 For example, a conventional light source or a light source with several colored light sources can be individually influenced in their intensity, whereby the color temperature of the diffusely emitted light can be scattered.
  • the ceiling element 12 lies with its frame element 2 on the inwardly directed cross struts 8
  • the T-shaped support rails 9 on the frame element 2 consists of elongated, symmetrically constructed frame profiles 13.
  • the frame profiles 13 each have a rectangular recess 14 on both sides, in which the foils 3, 4 are fastened.
  • the foils 3, 4 are rounded off by webs 15 framework program, file 13 tensioned and clamped in the recesses 14.
  • the rounding of the webs 15 prevents damage to the foils 3, 4 during tensioning.
  • the second foil 4 has, for example, a club-shaped piping 16 which is clamped in the recess 14.
  • the piping 16 is arranged circumferentially in the entire edge region 7 of the film 4.
  • the first film 3, on the other hand, has a rectangular, also circumferential piping 17, which is clamped in a clamping device 18 of the recess 14.
  • the clamping device 18 consists of upwardly directed hooks 19, which on both sides Recess 14 are arranged in any case by this embodiment forms a dust-free attachment of the foils 3, 4 to the frame element 2, so that no insects or dirt particles can penetrate into the space 6 between the two foils 3, 4. Falling impurities can therefore only be deposited on the second foil 4, whereby these the scattering of the light as it passes through the second film 4 can no longer be perceived by a viewer of the first film 3.
  • the support rails 9 can be detachably connected to the ceiling 10 by means of special holding rods or similar connecting elements Overall, very light ceiling elements 12 guaranteed
  • Figure 3 shows a sectional side view of a lighting fixture 20, which is box-shaped and is suspended via a plurality of wire cables 21 on a ceiling, not shown indicate the parallel vertical lines
  • a lighting fixture 20 which is box-shaped and is suspended via a plurality of wire cables 21 on a ceiling, not shown indicate the parallel vertical lines
  • it can be a conventional light source or a plurality of colored light sources 22, each of which can be individually influenced in terms of their intensity.
  • the frame profiles 23 are for receiving a first and a second film 24 , 25 provided.
  • the fastening of the foils 24, 25 takes place analogously to the exemplary embodiment shown in FIG. 2.
  • the main difference from FIG. 2 is that the foil 24 facing the light sources 22 has a knob-like structure.
  • the knobs 26 are stamped into the film 24 at different distances, it having proven particularly advantageous that the density of the knobs 26 in the vicinity of the light sources 22 is particularly high. As the distance from the light source 22 increases, the distance between the knobs 26 increases , whereby a particularly even lighting effect is achieved through the multiple reflection and multiple scattering that occurs
  • FIG. 4 shows an enlarged section of the film 24, the arrangement of the knobs 26 at different distances and a different density
  • FIG. 5 likewise shows a sectional side view of the lighting fixture 20, a film 27 with a microperforation 28 being used instead of an upper film 24 with knobs, as compared to FIG. 3.
  • the microperforation 28 likewise has its highest density in the vicinity of the light source 22
  • FIG. 6 shows in an enlarged section of the film 27 the arrangement of the microperforation 28 with different distances and different densities LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

La présente invention concerne un dispositif d'éclairage (1) constitué d'au moins une source de lumière (11) et d'au moins un élément de plafond (12) destiné à être fixé à un plafond et/ou un mur et présentant un élément de structure fermé (2), dont la surface périphérique ouverte voisine du plafond ou du mur est recouverte d'une première feuille (3) partiellement transparente se trouvant en-dessous de la source de lumière (11), et présente en plus une seconde feuille (4) partiellement transparente se trouvant entre la première feuille (3) et la source de lumière (11), les surfaces des deux feuilles (3, 4) s'étendant à distance l'une de l'autre de manière au moins approximativement parallèle. Grâce au dispositif d'éclairage (1) de l'invention, les insectes ou particules de saleté se trouvant sur la deuxième feuille (4) lors de l'éclairage ne sont plus visible par un observateur regardant en direction de la première feuille (3), ceci en raison de la diffusion de la lumière lorsqu'elle traverse la deuxième feuille (4). Le dispositif d'éclairage de l'invention présente également l'avantage de fournir un éclairage diffus extrêmement uniforme qui ressemble fortement à la lumière naturelle.
PCT/DE2000/003012 1999-09-10 2000-09-02 Dispositif d'eclairage WO2001020224A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00971247A EP1214547A1 (fr) 1999-09-10 2000-09-02 Dispositif d'eclairage
AU10179/01A AU1017901A (en) 1999-09-10 2000-09-02 Illumination element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999143478 DE19943478C2 (de) 1999-09-10 1999-09-10 Beleuchtungskörper mit teilweise lichtdurchlässigen Folien
DE19943478.6 1999-09-10

Publications (1)

Publication Number Publication Date
WO2001020224A1 true WO2001020224A1 (fr) 2001-03-22

Family

ID=7921603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003012 WO2001020224A1 (fr) 1999-09-10 2000-09-02 Dispositif d'eclairage

Country Status (4)

Country Link
EP (1) EP1214547A1 (fr)
AU (1) AU1017901A (fr)
DE (1) DE19943478C2 (fr)
WO (1) WO2001020224A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157360A1 (fr) 2008-08-22 2010-02-24 Normalu Caisson en relief anti-poussière
EP2788975A4 (fr) * 2011-12-09 2015-08-05 3M Innovative Properties Co Panneau lumineux acoustique

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20015195U1 (de) * 2000-09-02 2000-12-21 Tertilt Andreas Wand- oder Decken-Spannfläche
DE10163960A1 (de) * 2001-12-23 2003-07-03 Der Kluth Decke Und Licht Gmbh Beleuchtungsvorrichtung für die Qualitätskontrolle
DE10163958A1 (de) * 2001-12-23 2003-07-03 Der Kluth Decke Und Licht Gmbh Beleuchtungsvorrichtung
AU2003202741A1 (en) * 2002-02-21 2003-09-09 Koninklijke Philips Electronics N.V. Luminaire and method for repairing a luminaire
DE20209963U1 (de) * 2002-06-27 2003-10-30 Koch Hans Juergen Lichtdeckensystem
DE10326369A1 (de) * 2003-06-06 2005-01-05 Biostep Labor- Und Systemtechnik Gmbh Transilluminator
DE102004038575A1 (de) * 2004-08-06 2006-03-16 Merkle, Albrecht Modulares Leuchtensystem
FR2985301B1 (fr) * 2011-12-30 2014-06-13 Normalu Dispositif perfectionne d'eclairage
AT13090U1 (de) * 2012-10-16 2013-06-15 Newtec Deko Gmbh Lichtdecke
FR2998315B1 (fr) * 2012-11-20 2016-08-19 Newmat Dalle lumineuse pour fausse paroi, et fausse paroi integrant une telle dalle
FR3000509B1 (fr) * 2012-12-31 2015-01-16 Jean-Marc Scherrer Ensemble etanche et acoustiquement absorbant pour fausse paroi
AT516088A3 (de) * 2014-07-17 2019-01-15 Anton Schnurrer Beleuchtungseinrichtung
FR3028875B1 (fr) * 2014-11-26 2016-12-09 Normalu Structure a toiles tendues pour la realisation d'un faux plafond ou d'un caisson suspendu
DE202016104061U1 (de) * 2016-07-26 2017-10-27 Zumtobel Lighting Gmbh Leuchte mit veränderbarer Außenform
FR3077310B1 (fr) * 2018-01-30 2020-01-17 Normalu Nappe souple double amelioree pour la realisation de faux plafond a motifs visuels

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FR1091635A (fr) * 1952-09-11 1955-04-13 Isolation Rationnelle L Plafond isolant et translucide
US3186129A (en) * 1961-11-15 1965-06-01 Isora Illuminating Ceilings Lt Ceilings or walls
EP0328358A2 (fr) * 1988-02-08 1989-08-16 Umeda, Toshiaki Lampe à couleur variable
US4898087A (en) * 1988-08-17 1990-02-06 Heinrich Nickel Gmbh Laminarizer
US5700527A (en) * 1993-05-11 1997-12-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Sound-absorbing glass building component or transparent synthetic glass building component
US5852514A (en) * 1995-11-06 1998-12-22 Kimoto Co., Ltd. Light diffusion composite
DE19825269A1 (de) * 1998-06-05 1999-12-16 Altenburger Electronic Gmbh Beleuchtungssystem

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US4562515A (en) * 1984-05-23 1985-12-31 Emerson Electric Co. Calibrated area source task light
DE19514365A1 (de) * 1994-04-19 1995-10-26 Aeg Lichttechnik Gmbh Innenleuchte

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
FR1091635A (fr) * 1952-09-11 1955-04-13 Isolation Rationnelle L Plafond isolant et translucide
US3186129A (en) * 1961-11-15 1965-06-01 Isora Illuminating Ceilings Lt Ceilings or walls
EP0328358A2 (fr) * 1988-02-08 1989-08-16 Umeda, Toshiaki Lampe à couleur variable
US4898087A (en) * 1988-08-17 1990-02-06 Heinrich Nickel Gmbh Laminarizer
US5700527A (en) * 1993-05-11 1997-12-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Sound-absorbing glass building component or transparent synthetic glass building component
US5852514A (en) * 1995-11-06 1998-12-22 Kimoto Co., Ltd. Light diffusion composite
DE19825269A1 (de) * 1998-06-05 1999-12-16 Altenburger Electronic Gmbh Beleuchtungssystem

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157360A1 (fr) 2008-08-22 2010-02-24 Normalu Caisson en relief anti-poussière
FR2935168A1 (fr) * 2008-08-22 2010-02-26 Normalu Caisson en relief anti-poussiere
EP2788975A4 (fr) * 2011-12-09 2015-08-05 3M Innovative Properties Co Panneau lumineux acoustique
US9194124B2 (en) 2011-12-09 2015-11-24 3M Innovative Properties Company Acoustic light panel

Also Published As

Publication number Publication date
DE19943478A1 (de) 2001-04-05
EP1214547A1 (fr) 2002-06-19
AU1017901A (en) 2001-04-17
DE19943478C2 (de) 2002-11-28

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