WO2013038292A1 - Unité de panneau de paroi sèche comprenant une pluralité de sources de lumière - Google Patents

Unité de panneau de paroi sèche comprenant une pluralité de sources de lumière Download PDF

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Publication number
WO2013038292A1
WO2013038292A1 PCT/IB2012/054454 IB2012054454W WO2013038292A1 WO 2013038292 A1 WO2013038292 A1 WO 2013038292A1 IB 2012054454 W IB2012054454 W IB 2012054454W WO 2013038292 A1 WO2013038292 A1 WO 2013038292A1
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WO
WIPO (PCT)
Prior art keywords
face
layer
light
drywall panel
holes
Prior art date
Application number
PCT/IB2012/054454
Other languages
English (en)
Inventor
Maarten Marinus Johannes Wilhelmus Van Herpen
Alice MELO
Giovanni Cennini
Michel Cornelis Josephus Marie Vissenberg
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2013038292A1 publication Critical patent/WO2013038292A1/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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • 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
    • E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/041—Optical design with conical or pyramidal surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/043—Optical design with cylindrical surface
    • 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
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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

  • Drywall panel unit comprising a plurality of light sources
  • the invention relates to drywall panel unit, its use, as well as to an interior part comprising such drywall panel unit.
  • WO-2011/036606 describes a wall or ceiling covering arrangement comprising a covering material and a lighting system arranged to generate light.
  • the covering material has a user side and an opposite back side.
  • the lighting system is arranged at the back side of the covering material and the covering material has a light transmission for light generated by the lighting system in the range of 0.5 % to 30 %, especially in the range of 1 % to 20 %.
  • the covering material comprises a material selected from the group consisting of plasters and wallpapers.
  • WO-2010/052606 describes a lighting arrangement comprising a carpet structure, and a control unit.
  • the carpet structure comprises a carpet back lighting system comprising a carpet back lighting unit having a lighting unit front face and a unit back face.
  • the lighting unit front face comprises a light source arranged to generate light.
  • the carpet back lighting system comprises a plurality of said light sources.
  • the carpet structure comprises a light transmissive carpet unit comprising a carpet unit front face and a carpet unit back side.
  • the light transmissive carpet unit is selected from the group consisting of a carpet and a carpet tile.
  • the lighting unit front face of the carpet back lighting unit and the carpet unit back side of the light transmissive carpet unit are adjacent.
  • the light transmissive carpet unit is arranged to transmit at least part of the light travelling in a direction from the carpet unit back side to the carpet unit front face.
  • the control unit is configured to receive one or more input signals and is configured to generate, in response to the one or more input signals, one or more output signals to control the light generated by the light sources.
  • Such lighting arrangement can fulfill all kinds of functions.
  • a problem may be that lighting luminaires or other light output systems still need to be added to the ceiling or wall, which may give the ceiling or wall a less desired appearance, such as a cluttered appearance.
  • the lighting unit may often also negatively impact the acoustic properties of the ceiling or wall.
  • a problem is how to add a light output system to a ceiling or wall, without impacting the aesthetic and/or acoustic properties of the ceiling or wall. It is a further challenge to hide any optics that are needed to create the right beam shape for the light output system. It is another challenge to design a lighting system that is low-cost.
  • an alternative wall or ceiling covering or wall or ceiling element which preferably further at least partly obviates one or more of above-described drawbacks, and which preferably may be used to provide lighting without negatively affecting (or even improving) the aesthetic properties of the wall or ceiling and/or which preferably may also be used to positively influence the acoustics of an indoor space, or make the lighting solution of lower cost.
  • the solution we propose here is to use perforated plaster boards (drywall panels) in which a light source shines light through the perforated holes (herein also indicated as through holes). In this way, the acoustic and/or aesthetic properties of the plaster board is unaffected, while at the same time turning the plaster board into a light output system. If the light sources are turned off, the plaster board of the invention can normally not be
  • Drywall also known as plasterboard or gypsum board
  • plasterboard is in general a panel made of gypsum plaster pressed between two thick sheets of paper. It is for instance used to make interior walls and ceilings.
  • Plasterboard panels are also known as wallboard (USA, UK, Ireland), Gibraltar board or GIB wall and ceiling linings (in New Zealand, trademark of Winstone Wallboards), rock lath, Sheetrock (a trademark of USG Corporation), Gyproc (in Australia, India and amongst French Canadians, a trademark of Compagnie de Saint-Gobain).
  • the sheets of the drywall can be made from fiber glass instead of paper to prevent mould growth.
  • Drywall construction became prevalent as a speedier alternative to using plaster- based interior finish techniques, which involved forcefully spreading a substrate of coarse plaster, known as the base, onto the wall's lath-work before finally applying the smoother finish coat, each layer added in succession and all by hand. Drywall, by contrast to plaster, may require hand finishing only at the fasteners and joints.
  • the drywall process requires less labor and drying time, lending its name to the panels used in the assembly.
  • drywall is a passive fire protection item.
  • gypsum contains the water of crystallization bound in the form of hydrates. When exposed to heat or fire, this water is vaporized, retarding heat transfer. Therefore, a fire in one room that is separated from an adjacent room by a fire-resistance rated drywall assembly will not cause this adjacent room to get any warmer than the boiling point (100°C) until the water in the gypsum is gone.
  • Perforated gypsum panels are sound absorbing thanks to perforations in the gypsum board and an (optional) acoustic felt on (the back of) the board. In addition to the acoustic properties, the boards also have a decorative function.
  • a perforated gypsum board can offer the designer complete creative freedom and a quality of finish that cannot be achieved with tiles, because tiles require a grid to keep the tiles in place.
  • the invention provides a drywall panel unit comprising (a) a drywall panel (herein also indicated as “panel”) comprising a first face, a second face and a plurality of through holes (herein also indicated as “holes” or “perforations") from the first face to the second face, the through holes having through hole edges, and (b) at least one light source, but in general a plurality of light sources, configured behind the first face, wherein each light source is configured to provide (during operation) light source light through at least part of one or more of the through holes in a direction away from the first face, and wherein especially the through hole edges are configured to reflect at least part of the light source light.
  • the invention is further described with reference to a plurality of light sources.
  • Such drywall panel unit may advantageously be used as lighting unit. It may also advantageously be used as building element, construction element, or finishing element. Beyond that, it may advantageously be used to improve acoustic properties (such as sound absorption). Hence, the drywall panel unit may give creative freedom to designers while integrating light sources that are (substantially) not visible to the user (when the light sources are in the off state).
  • the drywall panel may comprise a gypsum comprising element, between two layers, such as paper layers or fiber glass layers, etc.
  • the panel may in general have a thickness in the range of 5-100 mm, especially 5-20 mm, such as 9-15 mm.
  • the panel has a first face and a second face, which are arranged opposite of each other, which are substantially parallel, and which define the thickness.
  • the drywall panel may comprise other materials, like fire retardants and/or some other retardants, zeolite particles for air quality improvement, etc.
  • the first face when the drywall panel unit is installed in an indoor space, the first face will in general be directed to a user (in such space), and the second face will in general be directed to a support, such as a wall or a ceiling.
  • the phrase "the first face will in general be directed to a user” does not exclusively imply that the user may see by eye the first face.
  • further layers like a felt layer, and/or for instance one or more of paint or wall paper
  • drywall panel unit is herein used, to indicate that a unit is provided, comprising at least the drywall panel, as well as light sources.
  • the drywall panel unit may be produced in a plant, but the drywall panel and light sources may also be assembled on site before installation (in an indoor space).
  • the drywall panel comprises at least one, especially a plurality of through holes.
  • the invention is further described with respect to a plurality of through holes.
  • the holes thus extend from the first face to the second face.
  • the holes may in principle have any shape (referring to the cross-sectional shape (cross- section in the plane of the panel), like circular, elliptical, square, rectangular, triangular, polygonal (with 5 or more sided), and any distortion thereof.
  • the holes may have circular, square or rectangular cross-sections.
  • the panel may have holes having different shapes and/or having holes having different dimensions. For instance, the panel may have holes having rectangular and square shapes, or the panel may have circular holes having diameters of 0.5 cm and of 2 cm. The number of holes may vary from application to application, and may depend upon the size of the holes.
  • the hole area may vary from application to application, and may depend upon the holes sizes.
  • the sum of the area of the hole sizes i.e. the sum of the areas (or cross- section areas) at the first face relative to the total area of the first face may for instance be in the range of 1 % to 50 %, especially 10 % to 30 %, such as 10 % to 20 %.
  • the unit further comprises at least one light source, especially a plurality of light sources.
  • Each through hole may be "used" by one or more light sources.
  • a light source may 'use' a plurality of holes.
  • some of the through holes are not used to provide light source light.
  • the panel comprises one or more through holes without light sources (i.e. one or more through holes (and one or more light sources) are not configured to guide light source light in a direction from the second face to the first face and away from the first face). This may add to the beneficial acoustic properties.
  • the number of light sources may vary from application to application, and may depend upon the size of the hole. Likewise, the percentage of holes with one or more light sources may vary from application to application, and may depend upon the holes size. In general, the number of light sources per m 2 of the first face of the panel may be in the range of 1 to 10,000, like 100 to 2000, or 100 to 300. However, also applications are conceivable wherein one or more drywall panel units comprise light sources and one or more drywall panel units do not comprise light sources.
  • the light sources may especially comprise light emitting diodes (LEDs), especially solid state light emitting diodes.
  • LEDs light emitting diodes
  • OLED's may be applied and in another embodiment, small incandescent lamps may be applied or fluorescent lights may be applied.
  • LEDs, especially solid state LEDs are applied as light sources, for example because of their small dimension and/or long lifetime.
  • the light source is configured to provide light source light. This may be white light; however this may also be colored light.
  • the plurality of light sources comprise light sources emitting different types of light. For instance, there may be a subset of the plurality of light sources emitting in the blue, a subset of the plurality of light sources emitting in the green, a subset of the plurality of light sources emitting in the yellow, and a subset of the plurality of light sources emitting in the red. In this way, white and/or colored light may be provided.
  • the light sources are configured in such a way, that the light sources may be able to provide light through the holes which light may have a variable color.
  • a set of light sources may be configured to provide during operation light through the same through hole. Such set of light sources may be able to generate different colors. In this way, the drywall panel unit may also be used as display and can provide information. Therefore, in an embodiment the light sources comprise RGB (red green blue) light sources. In another embodiment, the light sources comprise YB (yellow blue) light sources. In yet another embodiment, the light sources comprise RGYB (red green yellow blue) light sources.
  • the through hole edges may especially be configured to reflect at least part of the light source light. Due to the position of the light source, i.e.
  • the light of the light source may at least partially be directed to the hole edges.
  • Those hole edges may be reflective, as will in general be the case when drywall panels are applied, because of the presence of reflective material, especially gypsum.
  • the light source is arranged to provide at least part of its light (when the light source is switched on) on (at least part of) the through hole edge(s).
  • the light source light of the light sources may at least partly illuminate the through hole edges of the holes.
  • the through holes may function as collimator (for example for collimating the light of the light source) and/or light chamber (for example for mixing colors of light, or for distributing the light within the chamber).
  • the through hole may advantageously function as light mixing chamber.
  • white light herein, is known to the person skilled in the art. It especially relates to light having a correlated color temperature (CCT) between about 2000 K and 20000 K, especially 2700 K to 20000 K, for general lighting especially in the range of about 2700 K and 6500 K, and for backlighting purposes especially in the range of about 7000 K and 20000 K, and especially within about 15 SDCM (standard deviation of color matching) from the BBL (black body locus), especially within about 10 SDCM from the BBL, even more especially within about 5 SDCM from the BBL.
  • CCT correlated color temperature
  • violet light or “violet emission” especially relates to light having a wavelength in the range of about 380 nm to 440 nm.
  • blue light or “blue emission” especially relates to light having a wavelength in the range of about 440 nm to 490 nm (including some violet and cyan hues).
  • green light or “green emission” especially relate to light having a wavelength in the range of about 490 nm to 560 nm.
  • yellow light or “yellow emission” especially relate to light having a wavelength in the range of about 560 nm to 590 nm.
  • range light or “orange emission” especially relate to light having a wavelength in the range of about 590 nm to 620 nm.
  • red light or “red emission” especially relate to light having a wavelength in the range of about 620 nm to 750 nm.
  • visible light or “visible emission” refer to light having a wavelength in the range of about 380 nm to 750 nm.
  • the light source is configured to provide during operation light source light through at least part of one or more through holes.
  • light sources when seen from the first face, light sources may be configured within the through hole, but at least behind the first face: no part of the light source protrudes from the through hole out of the first face.
  • the light source may be configured behind first face, but still (at least partially) within the through hole, but the light sources may also entirely be configured behind the through hole (i.e. also behind the second face).
  • the light sources are configured in such a way, that light travels in a direction from the second face to the first face. In this way light is provided, that propagates in a direction away from the first face (after leaving the through hole). Note that when a light source is configured within the through hole, i.e. between the second and the first face, still the light source is configured to provide light propagating in a direction from the second to the first face.
  • one or more light sources reside within one or more through holes, and in an embodiment, which may be combined with the former, one or more light sources are configured behind the second face.
  • the light source may be configured to provide light initially towards the second face, and a reflecting layer (for example a white layer) is arranged to reflect the light and provide light propagating in a direction from the second to the first face.
  • a reflecting layer for example a white layer
  • the light source is configured to provide light propagating in a direction from the second to the first face, even though the light source is also providing light in a direction from the first to the second face.
  • the combination - in this embodiment - of the arrangement of light source and reflective layer leads to light propagating in a direction from the second face to the first face, and propagating in a direction away from the first face.
  • a (cover) layer especially a felt layer
  • This felt layer may have acoustic properties, but it also closes the holes on one side, which in some of the herein described embodiments is used as support for an additional transmissive cover layer.
  • a felt layer also other types of textile layer may be applied, or a paper layer may be applied.
  • the layer is of a type that is commonly used in drywall panels, such as a felt layer.
  • the felt layer will in general be in contact with a support, such as a wall, although other configurations may also be possible (see below).
  • the drywall panel unit may further comprise a layer, especially in physical contact with first face or the second face, wherein in an embodiment the light sources are integrated in, or integrated on the layer, or the light sources are sandwiched between the layer and the first or second face.
  • a support layer or cover layer
  • such (support) layer may comprise a printed circuit board, but may also comprise a felt layer (as indicated above).
  • An advantage of a felt layer may be that is may also be sound adsorbing.
  • layers of other materials may be applied.
  • the layer may be at a non-zero distance from the first face or the second face.
  • the layer may herein also be indicated as acoustic (felt) layer.
  • the layer is in physical contact with the second face.
  • the light sources may be integrated in or integrated on the layer, such as a felt layer.
  • an advantage of the invention may further be that the through holes provide a beam collimation effect.
  • the LED light sources, or other light sources may provide substantially non-collimated light
  • the application with the drywall panel with through holes also provides a "collimator" to the light sources.
  • the hole edges will be perpendicular to the first and the second face (such as in the case of cylindrical or cubic through holes).
  • this collimation may further be tuned, by adapting the geometry of the hole or the hole edges.
  • the through holes comprise through hole edges, wherein at least part of the through hole edges diverge in a direction from the second face to the first face.
  • the through holes comprise through hole edges, wherein at least part of the through hole edges converge in a direction from the second face to the first face.
  • the light sources and the through holes may in an embodiment be configured to provide light having a beam angle ( ⁇ ) selected from the range of 30° to 70°, such as 45° to 60°.
  • the angle ⁇ may especially be defined as the cut-off angle.
  • the average luminance at angles larger than the cut-off angle ⁇ is smaller than 3000 cd/m 2 . In this way, office glare requirements may be fulfilled.
  • the luminance at angles larger than the cut-off angle ⁇ is smaller than 1500 cd/m 2 .
  • the luminance at all angles equal to or smaller than the cutoff angle is equal to or larger than 1500 cd/m 2 , especially equal to or larger than 3000 cd/m 2 , such as equal to or larger than 5000 cd/m 2 .
  • values of about 5000 cd/m 2 to about 3.10 9 cd/m 2 such as 5000 cd/m 2 to 5.10 8 cd/m 2 can be achieved.
  • the luminance at all angles equal to or smaller than 0.9 times the cut-off angle i.e. 0.9* ⁇ is equal to or larger than 5000 cd/m 2 .
  • the holes may have directions (differing from perpendicular to the first face).
  • the holes may have hole axes which are substantially perpendicular to the first and the second face.
  • the light escaping from such hole will have an optical axis that substantially coincides with the hole axis.
  • the through holes comprise through hole axes (herein also indicated as "hole axes"), wherein the through hole axes have angles (a) relative to the first face and the second face in the range of larger than 0° and smaller than 90°. In this way, the panel unit may be applied in constructions to provide light in specific directions.
  • the panel unit may be used to illuminate the floor and/or the ceiling, and/or a wall. This may also be an option to reduce glare.
  • the angle will be in the range of 1° to 60° especially 5° to 35°.
  • the drywall panel unit may be configured and arranged in different ways.
  • One option, which may especially be beneficial in view of acoustic properties, may be that the through holes are open (at the first face).
  • the drywall panel unit may be configured with the felt layer in contact with a support, such as a wall or a ceiling, and the other side of the felt layer in contact with the second face of the drywall panel (with the first face of the drywall panel (and thus the through hole openings) towards a user).
  • the through holes at the first face may (also) be closed.
  • an (acoustic) felt layer (or a layer of another type of material) may be arranged at the first face instead of or in addition to an (acoustic) (felt) layer at the second face.
  • the drywall panel unit may be configured with the felt layer at the first face, and the second face of the drywall panel in contact with a support, such as a wall or a ceiling (with the first face and (felt) layer towards a user).
  • a felt layer (or another type of material layer) may be in contact at the second face (and the other side of the felt layer in contact with a support), and a(nother) felt layer (or another type of material layer) may be in contact with the first face.
  • the layer that may be applied at the first face, i.e. through which light of the light sources has to be transmitted, is herein indicated as transmissive cover.
  • the transmissive cover may in an embodiment refer to a plurality of transmissive covers, such as a plurality of layers, like for instance a felt layer (in contact with the first face), and on top of this felt layer a decorative layer (see also below).
  • the drywall panel further comprises a transmissive cover, preferably having a transmission for a part of the visible light spectrum in the range of 0.5 % to 40 %.
  • the term "transmissive” may refer to transparent or to translucent. Especially, the transmissive cover is translucent. In this way, the light source(s) may not be visible by a user (when the light sources are in the off state), but light of the light source may however be visible.
  • the transmission is in the range of 0.5 % to 40 %, such as 10 % to 30 %. Especially, the transmission is equal to or smaller than 30%. Note that when only a felt layer is applied on the first face, the transmission of this felt layer is also preferably in the indicated ranges. When the felt layer and the transmissive cover (on the felt layer) are applied, preferably the transmission of the layers together is in the indicated ranges. In principle, the felt layer, when applied on the first face, may also be considered as transmissive cover.
  • the indicated transmission range may on the one hand provide enough transmission through the covering material, for instance to make the light effect even visible under typical office lighting conditions, especially assuming state of the art LEDs, preferably solid state LEDs, but on the other hand, may substantially prevent visibility of elements (such as for example the light source).
  • the principle presented here may also be indicated as "hide light”: the light sources may be hidden and not visible to a user of panel unit, while the light generated thereby is visible to the user.
  • An additional advantage may be that the transmissive cover is protecting the lighting system that is underneath. Additionally, this may eliminate the need to use a protective housing for the lighting system (which is an advantage because it reduces cost). For example, the use of vinyl wallpaper may provide a waterproof enclosure for the lighting system (see further also below).
  • the transmission or light permeability can be determined by providing light at a specific wavelength with a first intensity to the material and relating the intensity of the light at that wavelength measured after transmission through the material, to the first intensity of the light provided at that specific wavelength to the material (see also E-208 and E-406 of the CRC Handbook of Chemistry and Physics, 69th edition, 1088-1989).
  • the transmissive cover is selected from the group consisting of a felt layer (a specific embodiment of a textile layer), a wall paper layer, a paint layer, a vinyl layer, a plaster layer, a carpet layer, a textile layer, an acoustic textile layer (a specific embodiment of a textile layer) and a gypsum layer, or a combination of two or more of the aforementioned, such as a combination of felt layer and paint layer.
  • An acoustic textile layer is for instance a textile with enough openings to allow sound to be transmitted. In that case the transmissive cover layer keeps the acoustic function of the holes optimal (while light may still be transmitted).
  • the invention provides a drywall panel unit that may easily be applied to a wall or a ceiling, with advantageous optical and/or acoustic properties, with even the advantage that the panel unit may further be applied with a cover desired by the user. Though the cover may reduce the acoustic properties, still a part of the acoustic properties may be maintained.
  • the drywall panel unit may be applied in all kind of spaces, especially indoor spaces, and in all kind of ways.
  • it may be attached to a support, such as a wall or a ceiling.
  • a support such as a wall or a ceiling.
  • the invention provides an interior part comprising a support and one or more drywall panel units as described above.
  • the support may for instance comprise a wall or a ceiling.
  • the wall may be a permanent wall, but in another embodiment may be a portable wall.
  • the indoor space may for instance be a room, an office, a cinema, a church, a music hall, a hospitality area like a hospital, an elderly home, a restaurant, a hotel, etc., or a part of such office, cinema, church, music hall, hospitality area like a hospital, elderly home, restaurant, hotel, etc.
  • the support may include one or more U-shaped profiles (which are known in the art), in which the drywall panel (unit(s)) may be mounted.
  • U-shaped profiles which are known in the art
  • the drywall panel unit(s)
  • An advantage of such a support is that it can create a non-zero distance between the support, such as a wall or ceiling, and the drywall panel.
  • the space thus created can be used to arrange one or more light sources.
  • the light sources such as LEDs, are arranged at a distance from drywall panel (i.e. behind the second face, and at a non-zero distance thereof). This may result in illumination of more than one through holes by a single light source. This may reduce the number of light sources, such as LEDs, required, and therefore reduces costs.
  • One or more drywall panel units may be used for providing light to an indoor space. Alternatively or additionally, one or more drywall panel units may be used for improving acoustics in an indoor space. Alternatively or additionally, one or more drywall panel units may be used, for atmosphere lighting.
  • the light of the drywall panel units may be controlled as function of other parameters like one or more of a presence sensor, facial recognition signal, an emergency signal, the content on a display of a display device, the temperature, the time, the day, the season, etc.
  • the color may depend upon the mood of a person in the room (facial recognition)
  • the drywall panel may indicate a direction to an (emergency) exit in case of an emergency signal
  • the color of the light may adapt as function of the content on a display of a display device (analogous to "ambilight")
  • the color and/or color temperature of the light may be adapted as function of the temperature (for instance compensating or stressing a specific temperature), etc.
  • the panel units may also be used for displaying information with the one or more drywall panel units.
  • the light sources such as LEDs
  • the light sources need to be individually controllable. This can for example be achieved using a (micro)controller that controls the on/off/dimming state of the light sources, such as LEDs, and/or that may (also) control the color of the light sources, such as RGB LEDs.
  • the (micro)controller may receive a data signal that tells in what state the LEDs need to be controlled.
  • the invention may also provide a combination of the drywall panel unit of the invention and a (micro) controller, wherein the controller is configured to control one or more light sources of the drywall panel unit (and optionally one or more sensors, with the (micro) controller configured to control one or more light sources as function of one or more sensor signals of the one or more sensors).
  • the one or more sensors may be configured to sense one or more of the above-mentioned parameters.
  • upstream and downstream relate to an arrangement of items or features relative to the propagation of the light from a light generating means (here the especially the first light source), wherein relative to a first position within a beam of light from the light generating means, a second position in the beam of light closer to the light generating means is “upstream”, and a third position within the beam of light further away from the light generating means is “downstream”.
  • substantially herein, such as in “substantially consists”, will be understood by the person skilled in the art.
  • the term “substantially” may also include embodiments with “entirely”, “completely”, “all”, etc. Hence, in embodiments the adjective substantially may also be removed.
  • the term “substantially” may also relate to 90 % or higher, such as 95 % or higher, especially 99 % or higher, even more especially 99.5 % or higher, including 100 %.
  • the term “comprise” includes also
  • the invention further applies to a device comprising one or more of the characterizing features described in the description and/or shown in the attached drawings.
  • the invention further pertains to a method or process comprising one or more of the characterizing features described in the description and/or shown in the attached drawings.
  • FIG. 2a to 2d schematically depict some further embodiments of the drywall panel unit.
  • Figs. 3a to 3c schematically depict yet some further embodiments of the drywall panel unit, with special attention to the electronics.
  • Fig. la schematically depicts an embodiment of a drywall panel unit 1 comprising a drywall panel 100 and a plurality of light sources 10 (here by way of example, only two light sources 10 are depicted).
  • the drywall panel 100 comprises a first face 101, a second face 102, arranged opposite of the first face 101.
  • the drywall panel 100 further comprises a plurality of through holes 110 from the first face 101 to the second face 102.
  • the drywall panel 100 can be used for acoustic purpose, as the through holes may help absorbing sound.
  • the light sources 10 are configured behind the first face 101.
  • the position of the light sources can also be defined with the terms upstream and downstream (see also above).
  • the first face 101 is downstream of the light sources 10.
  • the second face 102 could considered to be (in this embodiment) upstream of the light sources 10.
  • the light sources 10 are configured to provide during operation light source light 11 through at least part of one or more of the through holes 110 in a direction away from the first face 101. The direction away is shown by the arrows, which indicate the propagation of the light source light 11. In this schematically depicted embodiment, the light source light 11 travels through substantially the entire through hole 110.
  • the light sources 10 are especially LED light sources, even more especially solid state LED light sources.
  • the drywall panel unit 1 further comprises a layer 150, which may for instance be a felt layer, which may have further acoustic properties.
  • the layer 150 may also be used to attach the light sources 10 on (as depicted) or to integrate the light sources 10 in. However, the light sources may also be configured behind (upstream) of the layer 150 (see also below).
  • the felt layer 150 can be considered a back layer or support (layer).
  • the layer 150 has a first layer face 151 and an oppositely arranged second layer face 152.
  • the first layer face 151 is in physical contact with the second face 102 of the drywall panel 100.
  • the thickness of the drywall plate i.e. the depth of the through holes 110 is indicated with reference d.
  • FIG. 111 indicate the edge ("through hole edge") of the through hole 110.
  • the through hole 110, or more precisely its edge(s) 111 may advantageously collimate the light.
  • Drywall boards in general essentially comprise a white material, such as gypsum, which is advantageously reflective for visible light.
  • the through holes 110 may also advantageously function as mixing chamber of the light source light 11.
  • the advantage of this approach is that the acoustic properties of the perforated panel may substantially be unaffected by the presence of the light sources.
  • Another advantage may be that the aesthetics of the gypsum panel may substantially be unaffected, because the LED may not easily be visible in its through hole 110.
  • another advantage may be that a panel is made of a material that is naturally very white. Due to this, any light that hits the edges 111 of the through holes 110 will be recycled through reflection. This not only improves the efficiency of the system, but it will also give the light a diffuse appearance when viewing the light source at an angle, which is very pleasant to the eye.
  • an additional advantage may be that this structure gives an optical effect that reduces glare.
  • a luminaire comprises specific optics to suppress glare at larger angles, but in this case the through holes already give this effect. Direct light is only visible for smaller angles, and at larger angles the light is diffuse, without glare.
  • the through holes not only have an acoustic and aesthetic function, but they also have an optical function. This has the advantage that cost is reduced, because no optics are required for the lighting system. However, the use of optics is not excluded.
  • Fig. lb further depicts angle ⁇ (which is further described below) and angle ⁇ .
  • the angle ⁇ can be define the angle between the optical axis O and those rays of light that diverge maximal from the optical axis O but do still not illuminate the edge(s) 111 of the through hole. Hence, it defines the angle between the optical axis O and those rays that are not reflected by the edge(s) 111 of the through hole 110, and which rays diverge most from the optical axis.
  • the angle ⁇ is preferably in the range of 30° to 70°; see further also below. This angle may be indicated as undisturbed beam angle.
  • Fig. lc schematically depicts an embodiment wherein the light source 10 is configured behind the second face, and is also configured behind the layer 150, such as a felt layer.
  • the layer 150, the second face 102 and the first face 101 are downstream of the light source 10.
  • the acoustic properties may be optimal.
  • a second advantage may be that the aesthetics of the drywall panel are unaffected, because the LED is completely hidden behind the layer 150.
  • the advantage of the embodiment schematically depicted in Fig. lb is that the light does not need to travel through the (felt) layer, due to which the efficiency of the optical system may be improved.
  • a disadvantage compared of the embodiment schematically depicted in Fig. lb relative to the embodiment schematically depicted in Fig. lc is that the LED may be slightly visible in the through holes, but the aesthetics (and acoustics) may still be improved compared to prior art solutions.
  • the shape of the through holes 110 may be optimized in order to improve the optical function, or to create new optical effects with the through holes 110. For example, by making the through holes smaller in size, the angle of direct light will decrease.
  • the through holes can also be made rectangular; such that a different angular effect can be observed in different directions.
  • a particularly advantageous shape is schematically shown in Fig. Id, where the walls of the through hole are not straight, but placed at an angle. The advantage of this approach is that the optics become more efficient, especially for the diffuse light.
  • the edge(s) 111 of the through hole 110 converge with decreasing distance from the second face 102. In this way, a collimator may be obtained (as the edge 111 may be reflective, as gypsum is).
  • a conical shape of the through hole 110 is
  • edge 111 When going in a direction from the second face 102 to the first face 101, the entire edge 111 may diverge (as schematically depicted), but also only a part may diverge. Further, Fig. Id schematically depicts right edge(s) 111, but the edge(s) 111 may also be curved.
  • the edge 111 forms an angle ⁇ with the first face, which angle is smaller than 180° but larger than 90°.
  • the optical axis of the light source 10 substantially coincides with the hole axis. The latter is indicated with reference 112. This optical axis may indicate the main direction of the light 11; the hole axis 112 may be the longitudinal axis of the through hole.
  • the optical axis and the hole axis have an angle a with respect to the first face 101 and the second face 102 of 90°.
  • the through hole 110 may have a collimating effect.
  • the light 11 of the light source which is in general not collimated (or not collimated enough), may in be collimated by the perforation or through holes 110 in the drywall panel 100.
  • the through holes 110 may function as beam shaping elements. This is further illustrated in Figs, lb and Id, wherein the hole axis 112, but here in fact the optical axis is indicated.
  • the light 11 generated has a certain beam angle, indicated with ⁇ .
  • the opening angle, not indicated, is 2* ⁇ .
  • the light source 10 and the through hole(s) 110 may be configured to provide light having beam angle ( ⁇ ) selected from the range of 30° to 70°.
  • the angle ⁇ is especially defined as the cut-off angle.
  • the average luminance at angles larger than the cut-off angle ⁇ is smaller than 3000 cd/m 2 . In this way, office glare requirements may be fulfilled.
  • the luminance at angles larger than the cut-off angle ⁇ is smaller than 1500 cd/m 2 .
  • the undisturbed beam angle ⁇ may be larger, equal or smaller than the cut-off angle ⁇ .
  • the through holes 110 are made at an angle, see Fig. le.
  • the advantage of this approach is that it allows the light sources 10 to be masked by the drywall panel in perpendicular direction.
  • the direct light will now leave the panel 100 at an angle, and can for example illuminate another wall (not shown in this drawing), as a result of which a user will experience only diffuse light.
  • This embodiment can for instance be implemented on a wall, or it can be implemented on a ceiling.
  • the edge 111, or at least part thereof has an angle ⁇ with the first face.
  • the through hole has an axis, which is at an angle a with respect to the first face 101 and the second face 102 unequal to 90°.
  • the direction in which the light 10 propagates in a direction from the second face 102 to the first face 101, and propagates away from the first face 101 is under angle a with respect to the first face 101 and the second face 102. Also this may advantageous in reducing glare and/or in specifically targeting other elements in a space.
  • Fig. If schematically depicts an embodiment of the drywall panel unit 1 wherein a plurality of light sources 10 are configured to provide light through the same through hole 110.
  • a plurality of light sources 10 are configured to provide light through the same through hole 110.
  • the through hole 110 may advantageously function as lighting mixing chamber(s).
  • the light sources 10 are individually addressable.
  • the plurality of light sources 10 comprises a plurality of subsets of light sources, wherein each subset of light sources is individually addressable.
  • the drywall panel unit 1 may further comprise a controller (not depicted).
  • a further embodiment which may be based on the embodiment schematically depicted in Fig. If, but which is also possible for the other above and below embodiments, is the application of a plurality of LEDs, preferably RGB
  • LEDs which can be addressed dynamically. In this case it is possible to create a video effect on a wall or ceiling, by playing movie content on the wall or ceiling.
  • the LEDs might be controlled by a microcontroller, which receives data from a central player system.
  • the player system might have pre-programmed content, but might also be connected to the internet to be able to control the movie content and to receive alternative content to be displayed on the wall or ceiling.
  • the function of the light source can be general illumination, but often the light will be used as a luminous light source, for example in decorative applications.
  • the luminous light might also be used for signage, for example used in way- finding or in emergency way finding. Fig.
  • FIG. 2a schematically depicts an indoor space 20, such as a room of an office, wherein a plurality of drywall panels 100 is applied. Walls 22, like the left wall and the back wall, and the ceiling 23 comprise such panels 100.
  • the through holes 110 are depicted, as well as light 11 is depicted. Not all holes and all light sources may be configured to provide light source light 11 through all through holes 110. This is also schematically depicted in Fig. 2a.
  • Fig. 2b schematically depicts an interior part 5, which comprises a support 3, such as a wall 30, on which the drywall panel unit 1 is applied.
  • drywall panel unit 1 comprises layer 150, of which the second face 152, or at least part thereof, is in physical contact with the support 3.
  • not all through holes 110 are uses for lighting purposes.
  • Fig. 2c schematically depicts the same embodiment as schematically depicted in Fig. 2b, but now a transmissive cover 200 is applied to the drywall panel 100.
  • the transmissive support 200 covers the drywall panel.
  • the transmissive support is transmissive for light 11.
  • the transmissive cover 200 may for instance be wall paper.
  • the light 11 of the light source 10 first travels through the through hole 110 and then through the (felt) layer 150 (see Fig. 2d). This is especially useful when the through holes in the panel 100 are meant to be facing away from the user when they are installed, for example onto a support 3 (such as on wall 30). Note that in this embodiment, the layer 150 is in contact with the first face 101.
  • An important advantage of this embodiment is that no light source 10 or through hole 110 is visible when the light source is turned off.
  • a disadvantage compared to the previous embodiments is that the acoustic benefits of the through holes may be reduced. Another advantage of this
  • the panel 100 is that it is possible to cover the panel 100 with transmissive support 200, such as a decorative layer, which may for example be paint, wallpaper or decorative plaster (see Fig. 2d). Paint and plaster may easier be applied in this embodiment, than in the embodiment schematically depicted in Fig. 2c.
  • the advantage of the felt layer 150 arranged on the first face is that it can be used as support for the layer 200.
  • the layer 150 is typically added in the drywall panel factory, and the layer 200 is added when installing at the wall.
  • the first face and the second, (felt) layers 150 may be present.
  • the optional second (felt) layer is here indicated with reference 150(2). Note that this layer is option, but by way of example shown in Fig. 2d.
  • Fig. 2d schematically depicts an embodiment wherein at both sides layers 150 are present. For instance, one of these or both may be felt layers.
  • the layer 150 such as a felt layer, is configured between the support 3 and the drywall panel 100, i.e. the layer 150 is at one side, its second face 152, in contact with the support 3, and with the other side, its first face 151, in contact with the drywall panel 100 (especially its second face 102).
  • the layer 150 such as a felt layer
  • the felt layer 150 (especially its first face 151) is in contact with the first face 101, and the felt layer 150 (especially its second face 152) is in contact with the (optional) transmissive layer 200.
  • the second (felt) layer 150(2) is as describe above in relation to layer 150 in Fig. 2c.
  • the layer 150 is in physical contact with the first face 101 of the drywall panel 100 and the drywall panel unit 1 further comprises transmissive cover layer 200 in physical contact with the layer 150.
  • the felt layer 150 is not present, but only a transmissive cover layer 200 is used on the first face. This is done in situations where for example the transmissive cover layer can take over the function of the felt layer 150, or when no felt layer 150 is required. Thus, in this case the transmissive cover layer 200 replaces the felt layer 150 on the first face, and not further felt layer may be used.
  • Figs. 2c and 2d Another important advantage of the embodiments schematically depicted in Figs. 2c and 2d, is that they are easy to install. Solutions where a light source is placed between a wall panel and wallpaper or decorative plaster might also be conceivable, but in these solutions a very thin light source may have to be placed on the surface of a gypsum panel, and the wallpaper is placed over the light source to hide it. The problem with such solution may be that people find it difficult to install, and are for example concerned about electronic connections and that the wallpaper will not adhere properly. If paint is used in prior art solutions, the light source will remain visible, even if it is very thin. The current embodiment solves these problems, because the light source is hidden behind the gypsum panel, and the front surface of the gypsum panel looks and behaves as a normal front surface of a gypsum panel. This makes it much easier to install.
  • the (felt) layer 150 may be configured to be strong enough to prevent holes from appearing in the (decorative) transmissive layer 200. However, if desired the strength can be further enhanced by filling the through holes 110 with a transparent material, which can for example be an epoxy or rubber material.
  • the first face 101 is downstream of the light sources 10 and the transmissive cover 200 is downstream of the light sources 10 and downstream of the first face 101.
  • Fig. 2c schematically depicts transmissive cover 200. This may in an embodiment also be a felt layer.
  • Fig. 2d schematically depicts felt layer 150 (at least partially) being in physical contact with the transmissive cover 200 (such as wall paper or paint, etc.).
  • the combination of felt layer and transmissive cover can also be considered a transmissive cover.
  • the transmission of the transmissive cover 200 (and the optional felt layer together) is preferably as indicated above.
  • the electrical connections 40 to the light source can be made in several ways.
  • Figs. 3a and 3b schematically show two examples.
  • the electrical connections 40 penetrate through the (felt) layer 150 towards to backside or second face 102 of the panel.
  • Fig. 3b the electrical connections 40 between the light sources are created on the other side of the (felt) layer 150, and a wire only penetrates the (felt) layer 150 at certain locations for making an electrical connection.
  • the type of connection depends on the manufacturing method. If the LEDs can be added during the manufacturing process of the perforated gypsum board the embodiment in Fig. 3b has the advantage. If the LED is added after manufacturing of the panel, the scheme from Fig. 3a has the advantage.
  • Fig. 3c shows a further embodiment, a so called LED grid, in which LEDs are mounted directly onto electrical wires, without further printed circuit board or other support layer, and can be stretched after production.
  • the LED grid is used as light sources 10.
  • the advantage of this grid is that it has a uniform spacing of LEDs that can be matched with the through holes in the panel.
  • Another advantage of this grid is that it is low-cost. In addition it has a very open structure, due to which acoustics are almost unaffected.
  • the wires or electrical connections 40 are part of an electrical wire structure 41.

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

Abstract

L'invention porte sur une unité de panneau de paroi sèche (1), laquelle unité comprend (a) un panneau de paroi sèche (100) comprenant une première face (101), une seconde face (102) et une pluralité de trous traversants (110) à partir de la première face (101) jusqu'à la seconde face (102), les trous traversants (110) ayant des bords de trou traversant (111), et (b) une pluralité de sources de lumière (10), configurées derrière la première face (101), chaque source de lumière étant configurée de façon à fournir, pendant le fonctionnement, une lumière de source de lumière (11) à travers au moins une partie d'un ou plusieurs des trous traversants (110) dans une direction d'éloignement à partir de la première face (101).
PCT/IB2012/054454 2011-09-12 2012-08-30 Unité de panneau de paroi sèche comprenant une pluralité de sources de lumière WO2013038292A1 (fr)

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IT201800010257A1 (it) * 2018-11-12 2020-05-12 Osram Gmbh Gruppo sorgente luminosa e proiettore comprendente detto gruppo sorgente luminosa
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EP3631109A4 (fr) * 2017-05-24 2020-11-25 Aurinkopuro OY Élément de lumière acoustique
WO2018215695A1 (fr) 2017-05-24 2018-11-29 Aurinkopuro Oy Élément de lumière acoustique
BE1025855B1 (nl) * 2017-12-28 2019-07-30 Buzzispace Nv Akoestisch verlichtingselement
EP3505823A1 (fr) * 2018-01-02 2019-07-03 Signify Holding B.V. Module d'éclairage et kit d'éclairage
WO2019134820A1 (fr) * 2018-01-02 2019-07-11 Signify Holding B.V. Module d'éclairage et kit d'éclairage
US11143395B2 (en) 2018-01-02 2021-10-12 Signify Holding B.V. Lighting module and lighting kit
CN112204300A (zh) * 2018-04-06 2021-01-08 昕诺飞控股有限公司 吸声照明模块
US11060701B2 (en) 2018-04-06 2021-07-13 Signify Holding B.V. Acoustically absorbent lighting module
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CN112204300B (zh) * 2018-04-06 2022-07-22 昕诺飞控股有限公司 吸声照明模块
WO2019234155A1 (fr) * 2018-06-08 2019-12-12 Signify Holding B.V. Unité d'éclairage rigide
US11175018B2 (en) 2018-06-08 2021-11-16 Signify Holding B.V. Rigid lighting unit
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IT201800010257A1 (it) * 2018-11-12 2020-05-12 Osram Gmbh Gruppo sorgente luminosa e proiettore comprendente detto gruppo sorgente luminosa
WO2022096077A1 (fr) * 2020-11-06 2022-05-12 Knauf Gips Kg Panneau acoustique perforé, son procédé de production et son utilisation

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