WO2024018291A1 - Panneau en pierre naturelle ayant des propriétés d'éclairage de surface et procédé de fabrication respectif - Google Patents

Panneau en pierre naturelle ayant des propriétés d'éclairage de surface et procédé de fabrication respectif Download PDF

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Publication number
WO2024018291A1
WO2024018291A1 PCT/IB2023/054463 IB2023054463W WO2024018291A1 WO 2024018291 A1 WO2024018291 A1 WO 2024018291A1 IB 2023054463 W IB2023054463 W IB 2023054463W WO 2024018291 A1 WO2024018291 A1 WO 2024018291A1
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WO
WIPO (PCT)
Prior art keywords
light
stone panel
natural stone
light source
tile
Prior art date
Application number
PCT/IB2023/054463
Other languages
English (en)
Inventor
José Fernando OLIVEIRA DA SILVA
André Filipe FERNANDES DA SILVA ANDRADE LEITE
Daniela Cristina RODRIGUES CAMPANHÃ
Samuel COSTA DELGADO
Nelson Manuel PAULINO DA SILVA
Original Assignee
Centitvc - Centro De Nanotecnologia E Materiais Técnicos Funcionais E Inteligentes
Solancis-Sociedade Exploradora De Pedreiras, S.A.
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
Priority claimed from EP22187020.7A external-priority patent/EP4310392A1/fr
Application filed by Centitvc - Centro De Nanotecnologia E Materiais Técnicos Funcionais E Inteligentes, Solancis-Sociedade Exploradora De Pedreiras, S.A. filed Critical Centitvc - Centro De Nanotecnologia E Materiais Técnicos Funcionais E Inteligentes
Publication of WO2024018291A1 publication Critical patent/WO2024018291A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
    • E04F13/144—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of marble or other natural stone
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
    • E04F15/082—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass in combination with a lower layer of other material
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/305—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being the ends of optical fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
    • E04F2290/026—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets for lighting

Definitions

  • the present disclosure relates to a natural stone panel with surface lightning properties and respective manufacturing process.
  • optical fibres for this type of application. This requires at least one light source, and at least one optical fibre connected to the light source, all of which will be embedded within the natural stone. Thus, one end of the optical fibres will collect the light from the source and lead it to the other end, in order to be exposed on the stone, providing a series of visible points on the surface of the stone.
  • the document US20140333514 describes a structure, made of clay or cement, with embedded light guiding parts that allow for light signals or live images to appear on its surface. Specifically, there is a light system composed of an array of rods made in a hard transparent or translucent polymer material embedded in a building material.
  • the tapered rods are held together by a backbone that connects the bases of the tapered rods, to achieve an evenly distributed array of tapered rods, preferably having the same orientation, wherein the rods are adapted to receive a light input at the base ends and to transmit the light output at the front ends of the rods.
  • the preferred light source is a LED, powered by traditional AC electrical sources, electrical batteries or other powering source, such as solar, wind, or chemically or organically derived energy.
  • the document US6082886A describes an illumination system that can be used to incorporate light into pavement units or stone surfaces, and that is comprised of at least one illuminated paving block, with one or more light sources and one or more optical fibres, in communication with the light source, imbedded in the pavement unit.
  • the optical fibres have one end facing the light source and the other end exposed at the top surface of the block, to create visible points of light.
  • the paving block also contains a circuit module for housing the light source and the hardware needed to connect the light source to an external electrical power source.
  • the light source can be provided in any colour, and a timer system can be included to turn on or off the system.
  • the document CN2738092Y describes a self-illuminating assembling solid such as paver, running channel stone, building block, or statue, that is provided with optical fibres arranged in the containing piece, with one end of the optical fibre at a predefined position on the body surface.
  • the assembled object is provided with self-illuminating seasonal pattern, informational text or advertisement, with a plurality of versicolor patterns being possible for a single object.
  • the light can be transmitted to one or more assembled solid object from one or more distal end light source.
  • a light emitting article includes an optical element having an input and an output aperture, each having a specific size, in which a LED die is optically coupled to the optical element, with a size that matches the output aperture size of the optical element. It also refers to an array of light-emitting articles that can either include an array of optical elements with a lapped input aperture surface, or an array of optical elements, and an array of LED dies, each LED die having a size, with each LED die optically coupled to an optical element at the input aperture.
  • the present disclosure relates to a natural stone panel with lighting capabilities, through the use of different lighting systems and light channels that pass through the stone tile.
  • associated touch system can be applied to the referred stone panel.
  • lightning capabilities can be used for decorative and/or informative purposes.
  • the subject matter of the disclosure relates to a stone panel comprising a support stone tile having front and back surfaces with a light source, which can be a electroluminescent film or tape, light-emitting diodes (LEDs) stripe, organic lightemitting diode (OLED) stripe, quantum dot light-emitting diode (QLED) stripe or combinations thereof, depending if it is for a decorative or informative purpose, respectively, that is responsible for illuminating specific areas/points of the stone tile surface by making use of optic fibre elements that are present in the interior of the stone tile in order to create light channels that pass through the stone.
  • a light source which can be a electroluminescent film or tape, light-emitting diodes (LEDs) stripe, organic lightemitting diode (OLED) stripe, quantum dot light-emitting diode (QLED) stripe or combinations thereof, depending if it is for a decorative or informative purpose, respectively, that is responsible for illuminating specific areas/point
  • the subject matter of the disclosure also provides advantageous of having coupled a touch sensor that is responsible for actuating on the support stone tile, activating, deactivating or altering part of the information provided by the said light source.
  • This disclosure proposes a natural stone panel with a surface lightning for placing into direct contact with ground or wall, comprising: a support stone tile having front and back surfaces; a light source placed inside or behind said support stone tile, wherein the light source is selected from a list consisting of electroluminescent film or tape, lightemitting diode (LED), organic light-emitting diode (OLED), quantum dot light-emitting diode (QLED) stripe, or combinations thereof; at least one light channel created in the interior or behind of the said support stone tile allowing the passage of a light path coming from the light source to at least one opening on the front surface of said support stone tile and a light guide arranged in said light path for guiding light from said light source to the at least one opening.
  • LED lightemitting diode
  • OLED organic light-emitting diode
  • QLED quantum dot light-emitting diode
  • the light source of the natural stone panel is electroluminescent.
  • the electroluminescent light source of the natural stone panel is a film or tape.
  • the natural stone panel comprises a transparent ortranslucid layer arranged on the electroluminescent light source, to which the light guide is physically and optically coupled.
  • the support stone tile of the natural stone panel is recessed in the back surface to receive the light source and light guide.
  • the light guide of the natural stone panel is an optical fibre.
  • the natural stone panel comprises a printed touch-sensitive circuit arranged on a polymeric layer on a back surface of said support stone tile, comprising a plurality of circuit tracks arranged to detect touch events on the support stone panel.
  • the printed touch-sensitive circuit used with the natural stone panel has one or more openings and the light guide is arranged to go through one of the openings.
  • the light source and/orthe printed touch-sensitive polymeric layer of the natural stone panel are coupled to a control printed circuit board.
  • the natural stone panel comprises at least one terminal for connection between the light source and the control printed circuit board.
  • the natural stone panel comprises a connector for connection of the terminal to the optical fibre.
  • the natural stone panel comprises a power and hardware control located on the back of said support stone tile.
  • the luminous flux of the light source of the natural stone panel is between 13.5 lumens and 126 lumens.
  • the support stone tile and/orthe optical fibres of the natural stone panel are coated.
  • the natural stone panel comprises at least one rigid panel for maintaining the optical fibre in the right position.
  • the optical fibre of the natural stone panel has a light attenuation along its length lower than 350 db/km, preferably between 100 - 300 db/km.
  • the optical fibre of the natural stone panel has a polymeric base.
  • the circuit tracks of the natural stone panel comprise silver, copper, or other metallic elements, or combinations thereof.
  • the circuit tracks of the natural stone panel comprise materials with sheet resistivities comprised range between 10 mQ/sq/mil and 20 mQ /sq/mil.
  • the support stone tile of the natural stone panel is a sedimentary rock, igneous rock, metamorphic rock, preferably limestone, travertine, marble, basalt, sandstone, gneiss, quartzite, slate, onyx, laterite or granite.
  • a stone tile is a stone block or slab used for tiling.
  • the support stone panel of the natural stone panel comprises a porosity between 0.5% and 7%, preferably between 1% and 6%.
  • a method for manufacturing a natural stone panel with a surface lightning for placing into direct contact with ground or wall comprising: providing a support stone tile; opening at least one light channel created in the interior of the said tile; introduction of at least one light source in the back of said tile, wherein said light source is substantially aligned with the light channel to allow the passage of a light path.
  • the method for manufacturing a natural stone panel further comprises the steps of: printing a touch sensing layer on the surface of said tile, comprising a plurality of distributing tracks; curing of the pattern at temperatures comprised between 100°C and 150°C, for 10 to 20 minutes.
  • Figure 1 Schematic representation of the elements of the natural stone panel with a surface lightning, with a light source (1) and their integration into the support stone tile (2) through at least one optic fibre cable (5) connected to at least one terminal (3) and connector (4).
  • Figure 2 Schematic representation of the printed circuit board with attached light source (1), connector (4) and optic fibre cable (5).
  • Figure 3 Schematic representation of a support stone tile (2) to be used to pass a static image, in conjunction with a light source (not represented in the figure).
  • Figure 4 Schematic representation of a cross section of the support stone tile (2) shown in the previous figure, allowing the viewing of the openings where the fibre optics (5) are placed.
  • Figure 5 Schematic representation of a natural stone panel with a) various light points, turned on and off, in order to show values; and b) touch sensing points to control said values.
  • Figure 6 Schematic representation of a natural stone panel with various light points turned on to show a decorative image.
  • Figure 7 Schematic representation of the touch sensing elements applied to the support stone panel (not represented in the figure).
  • This disclosure relates to a natural stone panel with a surface lighting for placing into direct contact with ground or wall, for example, for decorative or information purposes.
  • the natural stone panel with a surface lighting comprises a touch sensing system for controlling the lighting system, totally integrated inside the structure.
  • the lighting system of the said natural stone panel has as main components, a light source placed inside or behind the support stone tile, in places specifically prepared for this purpose, and at least one light channel, responsible for allowing the passage of light emitted by the light source, to at least one opening on the surface of said support stone panel.
  • the elements responsible for the light emission may be based on an electroluminescent film, yarn or tape, light-emitting diode (LED), organic light-emitting diode (OLED), quantum dot light-emitting diode (QLED) stripe, or combinations thereof depending on the functionality of the natural stone panel, for example as a decorative or informative piece.
  • LED light-emitting diode
  • OLED organic light-emitting diode
  • QLED quantum dot light-emitting diode
  • the use of LED technology makes it possible to obtain a natural stone panel with a decorative or informative purpose, and the information to be transmitted can be variable in the same natural stone tile.
  • electroluminescent technology on the other hand, also allows a natural stone tile to be obtained with a decorative or informative function, but the information to be passed is static, being defined at the time of creation of the structure.
  • the light-emitting elements are then light-emitting diodes, which may have one or more colours (RGB), and their size is not related to the dimensions of the channels responsible for routing the light from the emitting elements to the visible surface of the natural stone panel, as the LEDs are not inside that channel, but rather applied to a control printed circuit board responsible for controlling and changing the state of each LED.
  • RGB colour
  • LEDs As an example of LEDs that can be used, it is possible to mention the LEDs from LUMILEDS, reference L135-R625003500000, which are high-power LEDs, red in colour, more precisely, emitting in a wavelength between 620 and 630 nm, and with a luminous flux of 13.5 lumens.
  • Each of the LEDs is then coupled to the control printed circuit board and are then enclosed in terminals that allow the control of the illuminated area and the connection to connectors, which, in turn, allow the placement of optical fibres in close contact with the LEDs' emission surface, in order to maximize the efficiency of light transmission to the surface of the natural stone element.
  • the control printed circuit board should be prepared so as to have the necessary connection points to allow the correct and robust positioning of the terminals, which, for example, can be the terminals with reference 7461058, from Wurth Elektronik, which have 10 pins for connection to the printed circuit board and a channel for light passage and connection to the connector, with a diameter of 10 mm.
  • the connector which is responsible for connecting the terminal to the fibre optics, it must be appropriate to allow a robust connection to the terminal and the introduction and fixing of more than one optic fibre inside, without damaging it.
  • the Hummel connector with the reference 1.106.1001.50, which has an internal channel with a diameter of 6 mm, allowing the placement of three optical fibres with a diameter of 3 mm inside.
  • the positioning of the optical fibres inside the connector should be carried out in such a way that the ends facing the light source, of each optical fibre, are at the same distance from said light source, in order to produce a homogeneous illumination at each point of light, on the visible surface of the natural stone element.
  • the distribution of the optical fibres has to take into account their final positioning in the structure and the light emitting element with which it is in contact.
  • each set of 3 optical fibres coupled to a light emitting element must be inserted in such a way that they create a single lighting segment on the stone surface.
  • 21 optical fibres must then be used, coupled to 7 distinct LEDs, and arranged in a way that allows 7 separate segments to be obtained on the visible surface of the stone structure.
  • Another structural element necessary for the correct functioning of the complete lighting system, in particularfor maintaining the correct position of the optical fibres is the application of a coating, for example, epoxy resin, which, after curing, presents sufficient rigidity and adhesion to both the stone structure and the optical fibres, so as to be able to hold the latter in place.
  • a coating for example, epoxy resin
  • one or more electroluminescent devices shall be applied on the back of the natural stone tile, occupying an area equal or larger than the area occupied by the image created by the light guides inserted in the natural stone tile.
  • Each electroluminescent device can only emit light of a single colour, it being possible to create zones of different colours on the same device through the application of colour filters, however, this causes loss of luminous intensity, so its application is to be avoided, and the colour to be presented must be chosen taking into account this limitation.
  • the electroluminescent device should have a luminous flux between 13.5 lumens and of 126 lumens, and its power should not exceed 0.25 W/cm 2 .
  • the elements for transmitting the lighting to the visible face of the stone structure are optical fibres. These must have a diameter of 3 mm, high flexibility, with a maximum bending angle of at least 30mm, and reduced light attenuation along its length, not exceeding 350 db/km. These optical fibres should have a polymeric base, in order to present the necessary flexibility and be easy to cut and place, for example, polymethylmethacrylate. They should also be highly durable, not less than IP68, in order to be able to withstand the conditions of use to which they will be subjected.
  • the touch sensing system comprises sensory structures that detect the touch or approach of the human finger, which are applied directly on the rear surface of the stone tile, or onto an intermediate support layer that has been previously applied to the rear surface of the stone element.
  • the touch sensing system is based on capacitive sensing structures, specifically, on self-capacitive sensors. Self-capacitive systems measure changes in capacitance with respect to earth ground. Considering a parallel-panel model, the electrode forms one panel of a capacitor, with the other panel being either ground or the user's finger, with a touch causing the electrode capacitance to increase.
  • the touch sensing structures are applied through the application of conductive inks using a printing technology, namely screen printing. All the printed elements are printed resorting to a conductive silver ink (DuPont 5025), with a sheet resistance range between 10 mQ/sq/mil and 20 mQ/sq/mil, through a screen-printing process using a 90x40 mesh (90 yarns/cm and 40 pm yarn diameter).
  • a conductive silver ink DuPont 5025
  • a 90x40 mesh 90 yarns/cm and 40 pm yarn diameter
  • the set is curated in a thermal oven at approximated temperature of 110 °C for approximately 15 minutes.
  • a sensory device comprising a thickness between 100 and 150 pm, with capacitances in the range of 10 pF and a minimum 10% capacitance variation when activated is applied on the surface of the stone element.
  • a conductive silver mesh applied in the same way as the sensing electrode, and using the same ink, was applied around the sensing elements, in order to allow the shielding of the system and protection against electromagnetic interference.
  • the stone element e.g. limestone
  • the stone element must have sufficient mechanical strength to be perforated, with an open porosity between 0.5 and 7%, preferably between 1% and 6%, measured using standard EN 1936:2006 - "Natural stone test methods - Determination of real density and apparent density, and of total and open porosity".
  • Figure 1 shows a schematic representation of the elements of the natural stone panel with a surface lightning, with a light source (1) and their integration into the support stone tile (2) through at least one fibre optic cable (5) connected to at least one terminal (3) and connector (4).
  • Figure 2 shows a schematic representation of the printed circuit board with attached light source (1), connector (4) and optic fibre cable (5).
  • Figure 3 shows a schematic representation of a stone panel to be used to pass a static image, in conjunction with a light source (not represented in the figure).
  • a light source not represented in the figure.
  • Figure 4 shows a schematic representation of a cross section of the support stone tile (2) shown in the previous figure, allowing the viewing of the openings made to place the optic fibre (5). It is possible to observe the maximum thickness of the stone element (15mm) and the thickness (5mm) in the area illuminated by the electroluminescent devices.
  • Figure 5 shows a schematic representation of a natural stone panel with various light points (1) used to show informative image, as well as the touch sensing points (2) to control the information displayed.
  • Figure 6 shows a schematic representation of a natural stone panel with various light points used to show a decorative image.
  • Figure 7 shows a schematic representation of the touch sensing elements applied to the support stone panel (not represented in the figure).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

La présente invention concerne un panneau en pierre naturelle ayant des propriétés d'éclairage de surface et un procédé de fabrication respectif. La présente invention concerne un panneau en pierre naturelle ayant un éclairage de surface destiné à être placé en contact direct avec le sol ou un mur, comprenant : un carreau de pierre de support ayant des surfaces avant et arrière ; une source de lumière placée dans ou derrière ledit carreau de pierre de support, la source de lumière étant sélectionnée dans une liste constituée par un film ou un ruban électroluminescent, une diode électroluminescente (DEL), une diode électroluminescente organique (OLED), une bande de diode électroluminescente à points quantiques (QLED), ou des combinaisons de ceux-ci ; au moins un canal de lumière créé dans la partie intérieure ou la partie arrière dudit carreau de pierre de support permettant le passage d'un trajet de lumière en provenance de la source de lumière vers au moins une ouverture sur la surface avant dudit carreau de pierre de support et un dispositif de guidage de lumière disposé dans ledit trajet de lumière pour guider la lumière depuis ladite source de lumière jusqu'à ladite au moins une ouverture.
PCT/IB2023/054463 2022-07-22 2023-04-28 Panneau en pierre naturelle ayant des propriétés d'éclairage de surface et procédé de fabrication respectif WO2024018291A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PT11812422 2022-07-22
PT118124 2022-07-22
EP22187020.7A EP4310392A1 (fr) 2022-07-22 2022-07-26 Panneau en pierre naturelle ayant des propriétés d'éclairage de surface et procédé de fabrication respectif
EP22187020.7 2022-07-26

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WO2024018291A1 true WO2024018291A1 (fr) 2024-01-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082886A (en) 1999-02-11 2000-07-04 Stanford; Michael S. Illumination system
CN2738092Y (zh) 2003-09-13 2005-11-02 沃尔特·E·皮波 自照明的装配式固体材料物体
CN101313417A (zh) 2005-11-22 2008-11-26 3M创新有限公司 发光制品的阵列及其制造方法
ITMO20070234A1 (it) * 2007-07-12 2009-01-13 Duelle S R L Piastrella luminosa con fibre ottiche utilizzata per la pavimentazione ed il rivestimento di pareti e moduli di arredamento.
JP2014107077A (ja) * 2012-11-27 2014-06-09 Dainippon Printing Co Ltd タッチスイッチ部材及びタッチスイッチ装置
US20140333514A1 (en) 2011-02-16 2014-11-13 Dupont Lightstone Light system for building structures
US20160320048A1 (en) * 2014-11-25 2016-11-03 John James Daniels Method and apparatus for encapsulating a light source
EP3579217A1 (fr) * 2017-10-28 2019-12-11 Mui Lab, Inc. Produit avec panneau d'affichage opérationnel incorporé

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082886A (en) 1999-02-11 2000-07-04 Stanford; Michael S. Illumination system
CN2738092Y (zh) 2003-09-13 2005-11-02 沃尔特·E·皮波 自照明的装配式固体材料物体
CN101313417A (zh) 2005-11-22 2008-11-26 3M创新有限公司 发光制品的阵列及其制造方法
ITMO20070234A1 (it) * 2007-07-12 2009-01-13 Duelle S R L Piastrella luminosa con fibre ottiche utilizzata per la pavimentazione ed il rivestimento di pareti e moduli di arredamento.
US20140333514A1 (en) 2011-02-16 2014-11-13 Dupont Lightstone Light system for building structures
JP2014107077A (ja) * 2012-11-27 2014-06-09 Dainippon Printing Co Ltd タッチスイッチ部材及びタッチスイッチ装置
US20160320048A1 (en) * 2014-11-25 2016-11-03 John James Daniels Method and apparatus for encapsulating a light source
EP3579217A1 (fr) * 2017-10-28 2019-12-11 Mui Lab, Inc. Produit avec panneau d'affichage opérationnel incorporé

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