WO2008058575A1 - Système lumineux surfacique modulaire - Google Patents

Système lumineux surfacique modulaire Download PDF

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Publication number
WO2008058575A1
WO2008058575A1 PCT/EP2006/068626 EP2006068626W WO2008058575A1 WO 2008058575 A1 WO2008058575 A1 WO 2008058575A1 EP 2006068626 W EP2006068626 W EP 2006068626W WO 2008058575 A1 WO2008058575 A1 WO 2008058575A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lighting
lighting system
light source
edge
Prior art date
Application number
PCT/EP2006/068626
Other languages
German (de)
English (en)
Inventor
Udo Custodis
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Osram Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Priority to PCT/EP2006/068626 priority Critical patent/WO2008058575A1/fr
Publication of WO2008058575A1 publication Critical patent/WO2008058575A1/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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]

Definitions

  • the invention relates to a lighting system and a one-sided feedable lighting element for such a lighting system.
  • the light source is located on the side of the backlight opposite the light emission surface and often completely occupies this side. If fluorescent tubes are used as the light source for such backlighting, the resulting waste heat leads to a reduction in the service life of the fluorescent tubes of the backlighting. As a remedy, it has been proposed in German Utility Model 202005015061 U1 to use light emitting diodes for this type of backlight. In this case, a plurality of light-emitting diodes radiating in all directions is provided on the side of the backlighting which is opposite to the light-emitting surface.
  • the depth of the backlight can be reduced compared to fluorescent tubes, it is due to the need for a light guide plate in the backlight and due to the arrangement the light emitting diodes behind this the installation depth large, despite the reduction in comparison to the depth when using fluorescent tubes.
  • a backlight with side light coupling can be used in the second type of light coupling.
  • edgelight system a backlight with side light coupling
  • the respective light from strip-shaped light sources are coupled from the edges of the light panel.
  • light strips are provided on all four edges of the light panel in this document mentioned.
  • a visible decrease in intensity in the light from the edge towards the center is observed.
  • no uniform light intensity over the entire light emitting surface can be ensured.
  • the invention is based on the object to provide a luminous system in which a uniform illumination of large areas with low installation depth is possible.
  • a luminous system according to the invention has at least two lighting elements, each fed on one side, which form a common light-switching surface.
  • the one-sided fed edge portion of a luminous element can be covered with an edge portion of the other luminous element in such a way that a respect to the continuous Lichtabstrahl Structs, optically dark area of the one-sided fed edge portion of a luminous element by the edge portion of the other luminous element is illuminated.
  • a modular composite lighting system can be implemented with a variety of lighting elements.
  • a respective luminous element can be fed on one side by an associated light source, wherein the light source irradiates the edge section fed on one side substantially at right angles to the light radiating surface of the respective luminous element at this edge section.
  • the respective light source irradiates the associated luminous element in a preferred embodiment of a side which is opposite to the light emitting surface. As a result, light shadows are avoided by the light source.
  • one of the edge sections of the luminous elements has an obtuse or an acute angle with respect to the continuous light-emitting surface.
  • the lighting system is preferably a system for backlighting, for example, translucent fabrics or liquid crystal displays.
  • backlighting for example, translucent fabrics or liquid crystal displays.
  • the backlighting can be implemented for a variety of liquid crystal displays with different screen diagonals.
  • the lighting element made of synthetic glass, such as. As acrylic glass, or glass is made. This allows a high transparency, a high transparency and a high scratch resistance, which is particularly advantageous in the manufacturing process implement.
  • the lighting elements are formed like a strip.
  • backlights for liquid crystal displays having an aspect ratio of 4: 3 and backlights for liquid crystal displays having an aspect ratio of 16: 9 can be realized with the same luminous elements. Due to the strip-like configuration, the light elements can also be used in high-resolution screens and with large screen diagonals.
  • the light source is a light emitting diode. This allows a small distance between the light emitting element and the light source and thus a small overall depth. Furthermore, a light-emitting element that can be fed on one side is provided, which has a light-emitting surface and two opposing edge sections. One of the edge sections can be fed by one light source on one side and the other of the edge sections runs at an acute angle to the light emission surface. As a result, a uniform illumination can be ensured with the entire light emission surface.
  • the luminous element can be irradiated by the light source substantially at right angles to the light emitting surface of the luminous element. As a result, a multiplicity of luminous elements can be provided in juxtaposition with uniform illumination.
  • FIG. 1 is a sectional view of a light emitting element according to the invention with light source
  • Fig. 2 shows two light elements, between which a dark edge is formed
  • Fig. 3 is a lighting system with three lighting elements according to the present invention. Preferred embodiment of the invention
  • Fig. 1 shows a cross-sectional view of a luminous element 1 according to the invention, which has in cross-section substantially the shape of a parallelogram.
  • the light-emitting element 1 has a light-emitting surface 2 and a reflection surface 4 lying opposite to the light-emitting surface.
  • a light entrance edge surface 6, which is located at a light entry edge section 8 of the luminous element 1 extends.
  • a light exit edge section 10 with a light exit edge surface 12 is provided on the light element 1.
  • the light exit edge surface 12 forms an acute angle ⁇ with the light emission surface 2, which preferably corresponds essentially to the acute angle ⁇ of the light entry edge surface 6.
  • the luminous element is preferably produced using synthetic glass, for example acrylic glass such as polymethyl acrylate (PMMA) or glass.
  • synthetic glass for example acrylic glass such as polymethyl acrylate (PMMA) or glass.
  • the reflection surface 4 is preferably formed in such a manner that at this a total reflection of the light which is radiated from the light entry edge portion 8 to the light exit edge portion 10 occurs.
  • the light entrance edge surface 6 is associated with a light source 16 which preferably irradiates the light entrance edge surface 6 evenly.
  • the light source is preferably a light emitting diode (LED). Due to the use of LEDs, the distance between the light-emitting element 1 and the light source 16 are made small. Furthermore, LEDs emit no UV radiation, so that the radiation can be coupled directly into the light-emitting element. As LEDs, groups of red, green and blue LEDs, any combinations of these LEDs with one color or LEDs with two colors or a plurality of white LEDs can be used.
  • LEDs groups of red, green and blue LEDs, any combinations of these LEDs with one color or LEDs with two colors or a plurality of white LEDs can be used.
  • the light emitted from the light source 16 strikes the light entrance edge surface 6 in the light entrance edge portion 8, is reflected by the light entrance edge surface 6 and emerges from the light emitting surface 2 of the light element 1 after reflection at the reflection surface 4.
  • a reflection also takes place at the light exit edge surface 12 of the light exit edge section 10, so that over a longitudinal dimension L in Fig. 1, between the intersection of the light entrance edge surface 6 and the light emitting surface 2 and the intersection between the Lichtabstrahlflä - Che 2 and the light exit edge surface 12 extends, a Lichtabstrählung by the light-emitting element 1 takes place.
  • the light-emitting element 1 is fed by the light source 16 only on one side. Due to the advantageous properties of LEDs, the distance between the light source 16 and the luminous element 1 can be made small when using these as a light source, so that a small thickness of a luminous system with luminous element 1 and light source 16 can be obtained.
  • FIG. 2 shows a luminous element 100 with a light source 116.
  • a light entry edge section 108 is provided in the same way as in the luminous element 1 according to FIG.
  • the light exit edge surface 112 is not provided at an acute angle to the light emitting surface 2, but at a right angle to it.
  • a second light-emitting element 120 with the same structure as the light-emitting element 100 is provided in such a manner next to the light-emitting element 100 that the reflection surfaces lie in one plane, then the light-entrance edge surface 126 of the second light-emitting element 120 and the light exit edge surface 112 of the luminous element 100, there is a gap leading to a dark edge.
  • the lighting elements 20 and 40 correspond to the lighting element 1 and are arranged in relation to each other in such a way that the light exit edge surface 12 of the first lighting element 1 is in contact with the light entry edge surface 26 at the light entry edge section 28 of the second lighting element 20 ,
  • the light- Outlet edge surface 32 of the second light-emitting element 20 is in contact with the light-entry edge surface 46 of the third light-emitting element 40.
  • Both the light entry edge surface 6 of the first light-emitting element 1 and the light exit edge surface 52 of the third light-emitting element 40 are each truncated to support the lighting system of FIG. 3.
  • the result is a lighting system with a continuous Lichtabstrahlflache and a continuous reflection surface.
  • Each of the luminous elements 1, 20, 40 is fed by an associated light source 16, 36, 56 on one side.
  • the present invention is not limited to that the angle ⁇ of the light entrance edge surface 6 of FIG. 1 is made substantially equal to the angle ⁇ of the light exit edge surface 12 of FIG.
  • the angles ⁇ and ⁇ are designed differently from each other. In such a case, however, care must be taken that the angle ⁇ and the angle ⁇ of adjacent edge surfaces in a composite lighting system are made substantially equal in size, so that a uniform illumination is ensured.
  • the present invention is not limited to a planar configuration of the light entry edge surface 6 and the light exit edge surface 12. These surfaces can for example also be curved or provided with irregular contour. It is preferred that the contours of adjacent edge surfaces have a complementary shape when the luminaire system is assembled.
  • a luminous system with luminous elements fed on one side is described. These light-emitting elements form a common light-emitting surface and have adjacent edge portions which overlap in such a way that an optically darker region can be illuminated with respect to the continuous light-emitting surface of the one light-emitting element through an overlapping edge portion of the other light-emitting element.
  • a luminous element which can be fed on one side according to the invention two opposing edge sections are provided, from one of which can be fed by one light source on one side and the other to the light emitting surface substantially acute angle tapers.

Landscapes

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

Abstract

L'invention concerne un système lumineux doté d'éléments lumineux (1, 20, 40) alimentés d'un seul côté. Ces éléments lumineux forment une surface de rayonnement lumineux commune et présentent des segments de bord voisins (12, 26, …) qui se recouvrent de manière à pouvoir éclairer une zone optiquement plus sombre (26) par rapport à la surface de rayonnement lumineux continue de l'un des éléments lumineux (20) à travers un segment de bord (12), en recouvrement de l'autre élément lumineux (1). Dans un élément lumineux pouvant être alimenté d'un seul côté (1) selon l'invention, deux segments de bord (6, 12) situés en opposition sont prévus, l'un d'entre eux pouvant être alimenté d'un côté grâce à une source lumineuse (16) et l'autre se terminant essentiellement en angle aigu vers la surface de rayonnement lumineux.
PCT/EP2006/068626 2006-11-17 2006-11-17 Système lumineux surfacique modulaire WO2008058575A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/068626 WO2008058575A1 (fr) 2006-11-17 2006-11-17 Système lumineux surfacique modulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/068626 WO2008058575A1 (fr) 2006-11-17 2006-11-17 Système lumineux surfacique modulaire

Publications (1)

Publication Number Publication Date
WO2008058575A1 true WO2008058575A1 (fr) 2008-05-22

Family

ID=38370509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/068626 WO2008058575A1 (fr) 2006-11-17 2006-11-17 Système lumineux surfacique modulaire

Country Status (1)

Country Link
WO (1) WO2008058575A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001487A1 (de) * 2010-02-02 2011-08-04 Borsi GmbH & Co. KG, 77746 Lichtwerbeelement
US9487562B2 (en) 2011-06-17 2016-11-08 President And Fellows Of Harvard College Stabilized polypeptides as regulators of RAB GTPase function
US11325955B2 (en) 2017-07-19 2022-05-10 Dana-Farber Cancer Institute, Inc. Stabilized anti-microbial peptides for the treatment of antibiotic-resistant bacterial infections
US11945846B2 (en) 2016-02-29 2024-04-02 Dana-Farber Cancer Institute, Inc. Stapled intracellular-targeting antimicrobial peptides to treat infection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987490A1 (fr) * 1998-03-31 2000-03-22 Nitto Jushi Kogyo Kabushiki Kaisha Panneau d'eclairage en tandem
DE10314525A1 (de) * 2003-03-31 2004-11-04 Osram Opto Semiconductors Gmbh Verfahren zur Herstellung einer Beleuchtungsvorrichtung und Beleuchtungsvorrichtung
WO2005114273A1 (fr) * 2004-05-24 2005-12-01 Osram Opto Semiconductors Gmbh Procede de montage d'un systeme lumineux de surface, et systeme lumineux de surface
GB2424746A (en) * 2005-04-01 2006-10-04 Agilent Technologies Inc Light-emitting display apparatus
JP2006269364A (ja) * 2005-03-25 2006-10-05 Mitsubishi Rayon Co Ltd Ｌｅｄ面光源装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987490A1 (fr) * 1998-03-31 2000-03-22 Nitto Jushi Kogyo Kabushiki Kaisha Panneau d'eclairage en tandem
DE10314525A1 (de) * 2003-03-31 2004-11-04 Osram Opto Semiconductors Gmbh Verfahren zur Herstellung einer Beleuchtungsvorrichtung und Beleuchtungsvorrichtung
WO2005114273A1 (fr) * 2004-05-24 2005-12-01 Osram Opto Semiconductors Gmbh Procede de montage d'un systeme lumineux de surface, et systeme lumineux de surface
JP2006269364A (ja) * 2005-03-25 2006-10-05 Mitsubishi Rayon Co Ltd Ｌｅｄ面光源装置
GB2424746A (en) * 2005-04-01 2006-10-04 Agilent Technologies Inc Light-emitting display apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001487A1 (de) * 2010-02-02 2011-08-04 Borsi GmbH & Co. KG, 77746 Lichtwerbeelement
US9487562B2 (en) 2011-06-17 2016-11-08 President And Fellows Of Harvard College Stabilized polypeptides as regulators of RAB GTPase function
US11945846B2 (en) 2016-02-29 2024-04-02 Dana-Farber Cancer Institute, Inc. Stapled intracellular-targeting antimicrobial peptides to treat infection
US11325955B2 (en) 2017-07-19 2022-05-10 Dana-Farber Cancer Institute, Inc. Stabilized anti-microbial peptides for the treatment of antibiotic-resistant bacterial infections

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