WO2019140474A1 - Stratifié translucide - Google Patents

Stratifié translucide Download PDF

Info

Publication number
WO2019140474A1
WO2019140474A1 PCT/AT2019/060017 AT2019060017W WO2019140474A1 WO 2019140474 A1 WO2019140474 A1 WO 2019140474A1 AT 2019060017 W AT2019060017 W AT 2019060017W WO 2019140474 A1 WO2019140474 A1 WO 2019140474A1
Authority
WO
WIPO (PCT)
Prior art keywords
main panel
main
panel
light source
translucent
Prior art date
Application number
PCT/AT2019/060017
Other languages
German (de)
English (en)
Inventor
Linda Czapka
Original Assignee
Linda Czapka
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 Linda Czapka filed Critical Linda Czapka
Publication of WO2019140474A1 publication Critical patent/WO2019140474A1/fr

Links

Classifications

    • 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
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • 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
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package

Definitions

  • the invention relates to a translucent panel composite having at least one first main panel, an at least partially transparent second main panel, at least one light source, which is arranged on at least one edge surface of the panel assembly, wherein the first main panel and the second main panel are arranged one behind the other and their Main surfaces are substantially parallel to each other, and the first main panel at least partially at least partially emits the incident light from the light source on the edge surface light over the main surfaces.
  • Such known plate composites are mainly used to bring transparent surfaces, if necessary, at least in sections in an opa ken state by the light source is turned on. As a result, a transparent surface becomes opaque and viewing is no longer possible.
  • the highest possible transparency when the light source is switched off and the highest possible lack of transparency or opacity when the light is switched on are desirable. Often, however, the opacity is imperfect, so that the plate composite for users despite the light source remains at least outlines through the plate composite remain recognizable. It may be particularly advantageous if a review is made impossible in one direction, while the review in the other direction is still at least limited possible.
  • these plate assemblies still serve to illuminate the environment when the light source is switched on. It may be particularly advantageous if at least the major part of the light exits only at one of the main surfaces, for example when used as a window. Thus, the light pollution of the outdoor area can be reduced and the amount of light in the interior can be increased.
  • the object of the invention is therefore to avoid the disadvantages described and to improve the opacity of the plate assembly with the light source switched on.
  • the second main panel has at least one optical interference layer.
  • a part of the light waves emitted from the first main panel toward the second main panel can be deflected and redirected toward the first main panel and interact with other light waves. It comes to a further compression of the light in the first main panel, or an intensity modulation resulting in increased opacity. This can result in the main surface of the first main panel facing away from the second main board and the main surface of the second main board facing away from the first main board emitting different amounts of light from the light source. This can be particularly advantageous to illuminate interiors stronger. It can also cause the opacity to be higher in one direction than in the other, making it easier to see in one direction than the other. As a result, the review of the plate composite with the light source turned on in one direction may be possible, while it is not possible or very difficult in the other direction.
  • the choice of coating can also be used to decide the degree of opacity when the light source is switched on.
  • the entire second main panel is designed as an optical interference layer.
  • the optical interference layer can be designed such that it influences the luminous flux through the main surfaces as little as possible when the light source is switched off, and therefore the plate composite is as transparent as possible.
  • main surfaces are those surfaces of the main panels that are parallel to the surface plane, ie the plane in which the main panels spread out flatly.
  • edge surfaces is meant the side surfaces of the main panels which are at an angle to the surface plane. As a rule, they make up a small part of the surface due to the limited thickness of the main panels. They are often covered by mounting rails or lighting elements and therefore often not visible to the user or only indirectly visible.
  • the first main panel has the light of the light source diverting scattering particles.
  • scattering particles can be incorporated on a surface of the first main board or also in the first main board, which disturb the total reflection of the light introduced by the light source and guide the light out of the main areas.
  • scattering particles can be small reflective metal flakes, beads or the like, which are either applied to the surface or incorporated into the first main panel.
  • These scattering particles guide the light emitted by the light source outward over the main surfaces of the first main panel, causing the first main panel to glow.
  • the scattering particles, or the first main board may be designed such that these sections are transparent when the light source does not emit light. Thus, by irradiating light from the light source, the first main panel can be brought from a substantially transparent state to a substantially opaque state.
  • the optical interference layer is arranged on the side of the second main panel facing the first main panel. As a result, it is difficult to access and protected from damage.
  • the optical interference layer is formed on the main surface of the second main plate facing the first main panel, for example, by a coating, the light passing from the first main panel toward the second main panel does not first have to penetrate into the second main panel to access the optical interference layer hold true.
  • the reflectance may preferably be between 36% and 55%.
  • Their special feature is a combination of reflection and transmission. Particularly suitable for this purpose are variants with a reflective interference layer in combination with gray glass.
  • the decisive factor for the degree of reflection is the amount of light that strikes the layer. The extent to which the light waves interfere with each other and amplify each other can also play a role.
  • the glass is not completely opaque, but is dependent on the remaining light conditions.
  • the optical interference layer is embodied as a metal layer, preferably a gold layer, deposited on the second main board.
  • a metal layer preferably a gold layer
  • bismuth or other metals may also be used.
  • the interference layer can be easily attached to the second main panel. By choosing the vapor deposition and its intensity, the properties of the interference layer can be adjusted.
  • the optical interference layer is sputtered onto the second main panel layer. If material is applied to the second main board by sputtering, that is to say by the phenomenon of cathode sputtering, a particularly thin layer of specific thickness can be applied, which is particularly advantageous for generating the interference. It may also be advantageous if the optical interference layer is at least partially a sol-gel layer.
  • the interference layer is a sol-gel layer on the second main panel.
  • a coating solution is applied to a carrier layer, preferably the second main board or a sub-layer of the second main board.
  • the carrier layer is dipped in at least one coating solution or spread on the coating solution by spin coating on the carrier layer. Thereafter, the formation of a gel film and finally a solid film is achieved by drying.
  • the carrier layer can be heated for it. In this case, the layer can be further treated, for example by further heating to form an oxide layer.
  • the second main board is coated on both major surfaces.
  • the second main board preferably has an interference layer on both main surfaces. As a result, a particularly high level of reflection and a defined transmission can be achieved.
  • gray glass is advantageous for the second main board and, if appropriate, also for the first main board.
  • the interference layer has a thickness in the nanometer range.
  • the second main panel has a light transmittance between 15% and 25%, preferably between 28% and 22%.
  • the second main panel has a visual reflectance between 38% and 47%, preferably between 40% and 44%. It is furthermore advantageous if the reflection occurs at least over a large part of the visible light spectrum, particularly preferably substantially uniformly.
  • the second main panel may have interference fringes on both major surfaces.
  • both the second main panel and the third main panel may also have interference layers on the main surfaces facing the first main panel.
  • the optical interference layer is embodied reflecting or interfering for at least one wavelength of the light induced by the light source in the first main panel. It can also be provided that a defined set of wavelengths or a certain bandwidth of wavelengths are particularly strongly reflected.
  • the optical interference layer is designed to be reflective or interfering with at least 50% of the light induced by the light source in the first main panel. As a result, a particularly high effect of the interference layer can be achieved.
  • an at least sectionally transparent third main panel to be arranged on the side of the first main panel opposite the second main panel, which preferably has a further optical interference layer.
  • the first main panel is suspended in the region of an edge surface in a suspension of a holding frame.
  • an expansion of the first main panel by the heat radiated by the light source without the occurrence of internal stresses or curvatures can occur.
  • the first main panel is mounted on at least one lower side via at least one damper on the support frame.
  • a spring-mounted attachment can be achieved, which can yield thermal expansions.
  • the light source is magnetically attached to the first holding plate or to the holding frame. This allows the light source to be detachably and quickly connected to the first main panel or support frame. This also facilitates the replacement of the light source.
  • At least one cooling element is arranged on the light source. This allows better heat dissipation and stronger light sources can be used.
  • compressor-operated cooling elements can be used.
  • the thermal load can also be reduced by providing that the light source is arranged in the holding frame and at least one connecting space between holding frame and light source is filled with a thermally conductive fluid, preferably helium.
  • the fluid can provide a good thermal connection between the support frame and the light source.
  • the spectrum of the light source is designed to be continuously switchable.
  • the color choice can be adjusted individually, for example, depending on the time of day.
  • the spectrum comprises at least light with wavelengths in the range from 430 to 700 nanometers.
  • the light source has at least one SMD LED.
  • At least the second main plate is made of mineral glass. Thereby, a stable and durable embodiment can be formed.
  • the second main panel is arranged at a distance from the first main panel. This is particularly advantageous if the optical interference layer is arranged on the main surface of the second main board facing the first main board.
  • the interference layer is designed as at least one electrically modifiable smart glass layer whose light transmission properties can be changed when a voltage is applied.
  • This smart glass layer can be embodied as a film or its own plate and can be brought from one state to another with different light transmission properties such as, for example, different degrees of light reflection or light transmission by applying a voltage. For example, it could be brought from an opaque to a transparent state or vice versa.
  • one state has much greater light reflection and much higher opacity than the other.
  • Such layers can be embodied, for example, as liquid crystals, as polymer-dispersed liquid crystals or nanocrystal-containing layers (such as LC glass or PDLC glass).
  • the liquid crystal film may be embedded between two sheets of flat glass and connected to a power source. Within the solid polymer are the randomly oriented liquid crystal molecules. The incident light is scattered by them and the disc is opaque, so acts like milk glass. With the application of an electrical voltage, the liquid crystal molecules arrange themselves in the electric field - the glass becomes transparent to the eye. At an oblique angle, the effect may cause a slight haze for the viewer. If the voltage is removed, the liquid crystal molecules are again disordered and the pane becomes opaque again.
  • switchable layers at least partially opaque and also represent by their white film a good reflector in the opaque state and radiate the light in one direction.
  • Fig. 1 shows a variant in a section.
  • the panel composite has a first main panel 1, a second main panel 2 and a third main panel 3.
  • the main panels 1, 2, 3 are arranged at a distance from one another and have main surfaces 4 which are substantially parallel to one another.
  • the second main panel 2 On the side facing the first main panel 1, the second main panel 2 has an optical interference layer 14.
  • the first main panel 1 is made of polymethyl methacrylate and has scattering particles that discharge light from light sources 5 through the main surfaces 4.
  • Two elongated light sources 5 are attached to an edge surface 6 of the first holding plate 1, wherein they are magnetically arranged on a holding frame 8 spaced from the first main plate 1 and thus delimit a first connecting space 7 with this and holding frame 8.
  • the light sources 5 radiate the light directly in the direction of the edge surfaces 6 of the first main panel 1.
  • the holding frame 8 has recesses on the surfaces facing the light sources 5 and thus forms second connection spaces 9 with the light sources 5.
  • Cooling elements 10 are arranged, which cool the light sources 5.
  • the first connection spaces 7 and the second connection spaces 9 are flooded with helium to allow better heat transfer.
  • the first main panel 1 has at the upper end in the region of an edge surface 6 on the main surfaces 4 first shoulders 11, which rest on provided thereparts of the support frame 8. As a result, the first main panel 1 is suspended from the support frame 8 and suspended freely. At the lower end, the first main panel 1 is inserted into the support frame 8, having second shoulders 12 spaced from abutment surfaces 13. If there is an expansion of the first holding panel 1 by heat, the second shoulders 12 approach the abutment surfaces 13 until they abut against them.
  • 13 may be provided between the second shoulders 12 the abutment surfaces 13 damper.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'invention concerne un stratifié translucide pourvu d'au moins un premier panneau principal (1), d'un deuxième panneau principal (2) transparent au moins par segments, d'au moins une source de lumière (5), laquelle est agencée au niveau d'au moins une surface d'arête (6) du stratifié, le premier panneau principal (1) et le deuxième panneau principal (2) étant agencés l'un derrière l'autre et leurs surfaces principales (4) se trouvant sensiblement parallèles l'une par rapport à l'autre, et le premier panneau principal (1) dirigeant vers l'extérieur au moins partiellement par sa surface principale (4) au moins par segments la lumière émise par la source de lumière (5) au niveau de la surface d'arête (6). L'objet de l'invention est de pallier les inconvénients décrits et d'améliorer l'opacité du stratifié lorsque la source de lumière est allumée. La solution selon l'invention consiste en ce que le deuxième panneau principal (2) comporte une couche d'interférence optique (14).
PCT/AT2019/060017 2018-01-18 2019-01-18 Stratifié translucide WO2019140474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA60016/2018 2018-01-18
AT600162018A AT520917A1 (fr) 2018-01-18 2018-01-18

Publications (1)

Publication Number Publication Date
WO2019140474A1 true WO2019140474A1 (fr) 2019-07-25

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ID=65520001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2019/060017 WO2019140474A1 (fr) 2018-01-18 2019-01-18 Stratifié translucide

Country Status (2)

Country Link
AT (1) AT520917A1 (fr)
WO (1) WO2019140474A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130037600A (ko) * 2011-10-06 2013-04-16 엘지디스플레이 주식회사 스마트 윈도우 디스플레이
US9423665B2 (en) * 2014-03-24 2016-08-23 Industrial Technology Research Institute Ambient light adjustment apparatus, method and system
WO2016185990A1 (fr) * 2015-05-18 2016-11-24 シャープ株式会社 Dispositif d'éclairage et dispositif d'affichage
US20170108638A1 (en) * 2014-08-21 2017-04-20 Sakai Display Products Corporation Light-source device and liquid crystal display apparatus
KR20180001856A (ko) * 2016-06-28 2018-01-05 한국생산기술연구원 투명 스마트 oled 조명유리 및 이의 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975307A (en) * 1988-03-29 1990-12-04 Nicolas Sollogoub Translucent laminated panel
GB2376287A (en) * 2001-05-18 2002-12-11 Michael Gulvin Russell Luminous tile
DE102005017639B4 (de) * 2005-04-15 2008-03-06 Digitalicht Ag Lichtleiteranordnung sowie Verfahren zur Herstellung einer solchen
DE102011007093A1 (de) * 2011-04-09 2012-10-11 SYSTART GmbH Leuchtendes Fliesen-Modul
DE102014200606A1 (de) * 2014-01-15 2015-07-16 Tridonic Jennersdorf Gmbh Beleuchtetes Fensterelement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130037600A (ko) * 2011-10-06 2013-04-16 엘지디스플레이 주식회사 스마트 윈도우 디스플레이
US9423665B2 (en) * 2014-03-24 2016-08-23 Industrial Technology Research Institute Ambient light adjustment apparatus, method and system
US20170108638A1 (en) * 2014-08-21 2017-04-20 Sakai Display Products Corporation Light-source device and liquid crystal display apparatus
WO2016185990A1 (fr) * 2015-05-18 2016-11-24 シャープ株式会社 Dispositif d'éclairage et dispositif d'affichage
US20180217313A1 (en) * 2015-05-18 2018-08-02 Sharp Kabushiki Kaisha Lighting device and display device
KR20180001856A (ko) * 2016-06-28 2018-01-05 한국생산기술연구원 투명 스마트 oled 조명유리 및 이의 제조방법

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Publication number Publication date
AT520917A1 (fr) 2019-08-15

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