WO2017134168A1 - Éclairage et procédé pour fabriquer un éclairage - Google Patents

Éclairage et procédé pour fabriquer un éclairage Download PDF

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Publication number
WO2017134168A1
WO2017134168A1 PCT/EP2017/052259 EP2017052259W WO2017134168A1 WO 2017134168 A1 WO2017134168 A1 WO 2017134168A1 EP 2017052259 W EP2017052259 W EP 2017052259W WO 2017134168 A1 WO2017134168 A1 WO 2017134168A1
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WO
WIPO (PCT)
Prior art keywords
light
luminaire
substrate
forming
exit side
Prior art date
Application number
PCT/EP2017/052259
Other languages
German (de)
English (en)
Inventor
Thomas Wehlus
Daniel Riedel
Original Assignee
Osram Oled Gmbh
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 Oled Gmbh filed Critical Osram Oled Gmbh
Publication of WO2017134168A1 publication Critical patent/WO2017134168A1/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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/856—Arrangements for extracting light from the devices comprising reflective means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places

Definitions

  • the invention relates to a luminaire and to a method for producing a luminaire.
  • Area light sources such as organic light emitting diodes
  • Organic light-emitting diodes are area light sources that are approximately Lambertian emitters. That is, the light emitting diodes radiate approximately with a cos 2 ⁇ - characteristic, where ⁇ denotes the emission angle. Thus, organic light emitting diodes also emit a significant amount of radiation at angles nearly parallel to an emitting surface.
  • the lighting conditions for example for office space, are normalized and regulated. For example, at angles above 60 °, a luminance must not exceed 1500 nits. This limits the operating luminance of a Lambertian luminaire with an organic light-emitting diode to ma. 1500 nits. In other words, a light source, for example for office lighting, must be glare-free to large emission angles.
  • beam-forming films For glare of surface light sources, for example, beam-forming films, (Jungbecker) plates or macroscopic elements such as sheets and reflectors are known.
  • a beam-forming film is placed on the organic light-emitting diode and provided with a light-scattering layer.
  • Such solutions usually lead to significant light losses.
  • Plates and sheets require a complex production and often limit the size of the design of the light sources and can also affect the aesthetics undesirable.
  • Typical emission angles ⁇ are, for example:
  • An object of the invention is to provide a luminaire with one and a method for producing the same, which has a higher efficiency in the antiglare state.
  • the object is achieved according to one aspect of the invention by a luminaire.
  • the luminaire has a translucent substrate with a debindering structure.
  • the Entblendurigs für has a light entrance side and a light entrance side opposite light exit side.
  • the luminaire furthermore has a translucent, first electrode layer, which is formed on or above the light entry side of the substrate.
  • the luminaire furthermore has an organically functional layer structure designed to emit light, which is formed on or above the light-permeable, first electrode layer.
  • the luminaire furthermore has a second electrode layer formed on or above the organic functional layer structure.
  • the anti-glare structure has a plurality of light-conducting structures which extend between the light entry side and the light exit side and connect these optically to one another.
  • the light-conducting structures each have a 1 permeable core structure and the core structure surrounding, light-reflecting sheath structure.
  • the Mante1 structure may be an interface, for example a high-reflectance or totalreflecting interface for light above a given angle of incidence.
  • the cladding structure may be a diffusely or specularly reflecting layer or layer sequence, for example a metallic coating or a Bragg mirror. This makes it possible to form the light-conducting structures with a non-linear course between the light entrance side and the light exit side and thus to increase the intensity of the light in a predetermined range of failure or outcoupling angles from the luminaire. This can increase the efficiency of the luminaire.
  • the i i cht meetingsden structures on the light entrance side on a first S irnization and on the light exit side on a second end face, wherein the total area of the end faces of the light exit side is greater than the total area of the end faces of the light entry side.
  • the total area of the surfaces of the light exit side is at least approximately 30% greater than the total area of the end faces of the light exit side
  • the substrate on the light exit side and / or the light entry side on a substantially closed and / or flat surface.
  • the light exit side has a substantially planar surface.
  • the substrate has a substantially closed surface on the light exit side.
  • the substrate has a substantially closed surface on the light side.
  • the first electrode layer is formed directly on the light entry side of the anti-glare structure.
  • the Entblendungsstruk ur is designed such that light with a Ausfailswinkel of a maximum of about 60 0 is emitted from the light exit side.
  • the luminaire is designed as a surface light source for general lighting, for example as an office luminaire.
  • the object is achieved according to a further aspect of the invention by a method for the manufacture len a luminaire.
  • the method comprises forming a translucent substrate having a de-glare structure.
  • the debinder structure has a light entrance side and a light exit side opposite to the light entrance side
  • the method further comprises forming a translucent, first electrode layer on or above the light entry side of the substrate.
  • the method comprises forming an organic functional layer structure for emitting light, on or above the light-transmissive, first electrode layer.
  • the method comprises forming a second electrode layer on or above the organically functional layer structure.
  • the forming of the anti-glare structure comprises forming the substrate with a plurality of holes.
  • the plurality of holes extend from the light entrance side toward the light exit side.
  • forming the debonding structure comprises forming a plurality of holes in the substrate.
  • the plurality of holes extend from the light entrance side toward the light exit side.
  • the forming of the anti-glare structure comprises a mirroring of the plurality of holes in the substrate.
  • Blinding structure further comprises filling the plurality of holes with a translucent material. Furthermore, the method can analogously have features of the luminaire and vice versa.
  • Figure 1 is a schematic cross-sectional view of a lamp according to various aspects
  • Figure 2 is a schematic cross-sectional view of a
  • Figure 3A is a table
  • Figure 3B is a schematic cross-sectional view of
  • Figure 4 is a schematic plan view of a substrate according to various embodiments.
  • Figure 5A, B are schematic cross-sectional views of a
  • FIGS. 6A, B show flowcharts of methods for
  • connection As used herein, the terms “connected,” “connected,” and “coupled” are used to describe both direct and indirect connection, direct or indirect connection, and direct or indirect coupling.
  • connection As used herein, the terms “connected,” “connected,” and “coupled” are used to describe both direct and indirect connection, direct or indirect connection, and direct or indirect coupling.
  • identical or similar elements are provided with identical reference numerals, as appropriate.
  • a luminaire can have one, two or more optoelectronic components.
  • Assembly also have one, two or more electronic components.
  • An electronic component can, for example, an active and / or a passive component on iron.
  • An active electronic component can have, for example, a computing, control and / or regulating unit and / or a transistor.
  • a passive electronic component may, for example, a capacitor, a resistor, a diode or a coil on iron.
  • An optoelectronic component can be an electromagnetic
  • An electromagnetic radiation-absorbing component can be, for example, a solar cell or a photodetector.
  • a component emitting electromagnetic radiation may be a semiconductor component emitting electromagnetic radiation and / or an electromagnetic component Radiation emitting diode to be formed as an organic electromagnetic radiation emitting diode, as a electromagnetic radiation emitting transistor or as an organic electromagnetic radiation emitting transistor.
  • the radiation may, for example, be light in the visible range, UV light and / or infrared light.
  • the electromagnetic radiation emitting device may be formed, for example, as a light emitting diode (LED) as an organic light emitting diode (OLED), as a light emitting transistor or as an organic light emitting transistor.
  • the light emitting device may be part of an integrated circuit in various embodiments. Furthermore, a plurality of light-emitting components may be provided, for example, accommodated in a common housing, FIG. 1 shows a schematic cross-sectional view of a lamp 100 according to various embodiments.
  • Luminaire 100 is designed for example as a surface light source for general lighting, for example as an office lamp 100,
  • the luminaire 100 has a light-transmitting substrate 102 with a glare-shielding structure 130.
  • the anti-glare structure 130 has a light entrance side 118 and a light exit side 120 opposite the light entry side 118.
  • the light entrance side 118 refers to the side of the substrate 102 to which light (illustrated as arrow 140 in FIG. 1) generated in the luminaire 100 is incident on the substrate 102.
  • the light exit side 120 is to be understood as the side of the substrate 102 from which the light 140 generated in the luminaire 100 is radiated into the luminaire-external environment, for example a room to be illuminated. is decoupled.
  • the light entrance side 118 and the light exit side 120 may, for example, be regarded as end faces of a cylindrical or frusto-conical structure or have their end faces.
  • a shell structure is arranged, which will be described in more detail below.
  • This shell structure and / or one or both end faces can have a non - rotat ionssymmetrische form, alternative ", instead of the frustoconical or cylindrical structure may be formed also other symmetrical shape whose end faces the light input side 118 and the light output side 120 and comprise, as Example is called the form of a parallelepiped.
  • the anti-glare structure 130 is formed such that
  • Light 140 with a predetermined maximum angle of reflection for example, a maximum of about 60 °, with a predetermined maximum intensity from the light exit side 120 is emissive (in FIG. 1, the arrow is illustrated with an angle of 0 °), This can be prevented For example, persons in the illuminated space at an angle of incidence, which is greater than the predetermined, maximum angle of emergence and compared to a conventional light fixture without glare structure described above, of the light emitted by the lamp
  • Angle of error which is smaller than the predetermined angle, is increased.
  • the debonding structure 130 for example by means of a channeling of the light which is coupled into the light-conducting structures 130 from the light entry side 118.
  • the light-conducting structures 132 have a first end face on the light entry side 118 and a second end face on the light exit side 120, wherein the total area of the end faces of the light exit side 120 is greater than the total area of the end faces of the light entry side 118 End surfaces of the light exit side 120 is at least about 30% larger than the total area of the end faces of the light entrance side 118. This allows the intensity of the light that he un sited an angle from the Lichtaustrit s Design 120 from the lamp 100 is smaller than 1500 nits , This prevents observers from being blinded by the light 140 of the lamp 100 under such a viewing angle.
  • the debonding structure 130 has, for example, a plurality of light.
  • Lei end structures 132 which extend between the light entrance side 118 and the light exit side 120 and these optically connect together.
  • the plurality of light-emitting structures 132 are embedded in a matrix 112, respectively. arranged therein.
  • the light-conducting structures 132 each have, for example, a light-transmissive core structure 114 and one of the core structures.
  • the shell structure 116 j edoch a non-linear course from the light entrance side 118 toward Lichtaustrit sseite 120, for example, a concave profile, a convex curve, a curved course, a course with one or more kinks and / or steps, and a combination of such courses, beispielswei se arranged in sections successively or superimposed.
  • the substrate 102 has, for example, on the light exit side 120 and / or the Lxchteinhoffsseite 118 has a substantially closed and / or planar surface.
  • the light exit side 120 has a substantially planar surface.
  • the substrate 102 has a substantially closed surface on the light exit side 120.
  • the substrate 102 has a substantially closed surface on the light entry side 118,
  • the luminaire 100 also has an active region 110.
  • the active region is an electrically and / or optically active region.
  • the active region is, for example, the region of the luminaire 100 in which electrical current flows for operation of the luminaire 100 and / or in which electromagnetic radiation is generated or absorbed.
  • the active area 110 has a translucent first one
  • Electrode layer 104 formed on or above the light entrance side 118 of the substrate 102 ,.
  • the first electrode layer 104 is formed, for example, directly on the light entry side 118 of the anti-glare structure 130 or the substrate 102.
  • the active region 110 further has an organic functional layer structure 106 formed for emitting light 140, which is formed on or above the light-transmissive, first electrode layer 104. In other words, in the organic functional layer structure 106, the emissive light 140 becomes the
  • Luminaire 100 generated.
  • the active region 110 furthermore has a second electrode layer 108 formed on or above the organically functional layer structure 106.
  • FIG. 2 shows a schematic cross-sectional view of a luminaire 100 according to various embodiments.
  • luminaire 100 may essentially correspond to the luminaire illustrated in FIG. 1, wherein further aspects of luminaire 100 are illustrated in FIG.
  • the luminaire 100 has the substrate 102 described above.
  • the substrate 102 is at least partially transient or transparent, for example at least the light-conducting structures of the anti-glare structure.
  • the substrate 102 may be, for example, plastic, metal,
  • the matrix may comprise or be formed from a metal.
  • the substrate 102 may include or be formed from a plastic film or laminate having one or more plastic films.
  • the substrate 102 may be mechanically rigid or mechanically flexible.
  • the active region On the substrate 102, the active region is formed.
  • the active region has the first electrode layer 104, which has a first contact section 16, a second contact section 18 and a first electrode 20.
  • the first electrode layer 104 may also be a part of the substrate 104.
  • Between the substrate 102 and the first electrode layer 104 may be a first, not shown, barrier layer, for example a first
  • the matrix 112 of the substrate 102 comprises or is formed of a metal.
  • the substrate 102 is formed as a metal foil or a metal sheet, and the photoconductive structures 132 are formed therein as holes.
  • the matrix 112 comprises or is formed from a non-metallic glass.
  • a non-metallic glass is, for example, an inorganic glass or an organic glass.
  • the plurality of photoconductive structures 132 are embedded in the matrix 112, for example, by forming the structures in the matrix.
  • the optical structures 132 are formed as holes in a matrix 112.
  • the optical fibers are non-conductive
  • Structures 132 are formed as metal-coated holes in the substrate 102.
  • the photoconductive structures 132 are formed in the substrate 102 as metal-coated holes filled with a transparent material.
  • the substrate 102 has a plurality of openings on the light exit side 120, and in each case one opening of the plurality of openings is connected to a respective light-conducting structure of the plurality of light-conducting structures 132.
  • the luminaire 100 further comprises a translucent planarization layer.
  • the first electrode 20 is electrically insulated from the first contact portion 16 by means of an electrical insulation barrier 21.
  • the second contact portion 18 is electrically coupled to the first electrode 20.
  • the first electrode 20 may be formed as an anode or as a cathode.
  • the first electrode 20 is designed to be translucent or transparent.
  • the first electrode 20 comprises an electrically conductive material, for example metal and / or a conductive conductive oxide (TCO) or a layer stack of several layers comprising metals or TCOs.
  • the first electrode 20 may comprise a layer stack of a combination of a layer of a metal on a layer of a TCO, or vice versa.
  • An example is a layer of silver on one Indium TM tin oxide layer (ITO) is applied (Ag on ITO) or ITO-Ag ITO multi-layers.
  • the first electrode 20 may alternatively or additionally comprise said materials; Networks of metallic anodic wires and particles, for example of Ag, networks of carbon nanotubes, graphene particles and layers and / or networks of semiconducting nanowires.
  • the organic functional layer structure 106 is arranged to emit light.
  • Layer structure 106 may include, for example, one, two, or more sublayers.
  • the organic functional layer structure 106 may comprise a hole injection layer, a hole transport layer, an emitter layer, an electron transport layer and / or an electron injection layer.
  • Hole injection layer serves to reduce the band gap between first electrode 20 and hole transport layer.
  • the hole conductivity is larger than the electron conductivity.
  • the hole transport layer serves to transport the holes.
  • Electron transport layer the electron conductivity is greater than the hole conductivity.
  • the electron transport layer serves to transport the electrons.
  • the electron injection layer serves to reduce the band gap between the second electrode and the electron transport layer.
  • the organic functional layer structure 106 may include a "two or more functional layers structure units each having the above-mentioned sub-layers and / or other intermediate layers.
  • the second electrode layer 108 is formed, which may also be referred to as second electrode 108.
  • the second electrode 108 is electrically coupled to the first contact portion 16.
  • the second electrode 108 may be made according to any one of Embodiments of the first electrode 20 may be formed, wherein the first electrode 20 and the second electrode 108 may be formed the same or different.
  • the first electrode 20 serves, for example, as the anode or cathode of the active region.
  • the second electrode 108 serves as a cathode or anode of the active region corresponding to the first electrode,
  • a getter structure (not shown) may be arranged on or above the active area.
  • the getter layer can be translucent, transparent or opaque.
  • the getter layer may include or be formed of a material that absorbs and binds substances that are detrimental to the active area.
  • an encapsulation layer 24 of the active region is formed, which encapsulates the active region.
  • the encapsulation layer 24 may serve as a second barrier layer, for example as a second barrier layer
  • Encapsulation layer 24 may also be referred to as thin-layer encapsulation.
  • the encapsulation layer 24 forms a barrier to chemical contaminants or atmospheric agents, in particular to water (moisture) and oxygen.
  • the encapsulation layer 24 may be formed as a single layer, a layer stack or a layer structure.
  • the encapsulation layer 24 may include or be formed from: aluminum oxide, zinc oxide, zirconium oxide, titanium oxide, hafnium oxide, tantalum oxide, lanthanium oxide, silicon oxide, silicon nitride,
  • the first barrier layer on the substrate 102 corresponding to a configuration of
  • Encapsulation layer 24 may be formed. In the encapsulation layer 24 are above the first
  • Encapsulation layer 24 a first contact region 32 is exposed and in the second recess of the encapsulation layer 24, a second contact region 34 is exposed.
  • the first contact region 32 serves to electrically contact the first contact section 16, and the second contact region 34 serves to electrically contact the second contact section 18.
  • An adhesive layer 36 is formed over the encapsulation layer 24.
  • the adhesive medium layer 36 has, for example, an adhesive, for example an adhesive, for example a laminating adhesive, a lacquer and / or a resin.
  • the adhesive layer 36 may comprise, for example, particles which scatter electromagnetic radiation, for example light-scattering particles.
  • a cover body 38 is formed over the adhesive layer 36.
  • the adhesive layer 36 serves to attach the cover body 38 to the encapsulation layer 24.
  • the cover body 38 has, for example, plastic, glass and / or metal.
  • the covering body 38 may essentially be formed from glass and have a thin metal layer, for example a metal foil, and / or a graphite layer, for example a graphite laminate, on the glass body.
  • the cover body 38 serves to protect the conventional optoelectronic component 1, for example against mechanical forces from the outside. Further, the cover body 38 may serve for distributing and / or dissipating heat generated in the conventional optoelectronic component 1.
  • the glass of the covering body 38 can serve as protection against external influences and the metal layer of the covering body - 13 -
  • FIG. 3A shows a table
  • FIG. 3B is a schematic cross-sectional view for illustrating a
  • the luminaire 100 can essentially correspond to an embodiment described above.
  • the photoconductive structure 132 is over an emitting surface
  • the Lichtaustri tsflache 120 of the substrate may be planar and planar.
  • the light exit surface 120 is arched, for example in the form of an opti Fixed lens.
  • the interface of the photoconductive structures 132 to the matrix is reflective of the light conducted in the light-conducting structure that is emissive of the active region.
  • the cladding structure is the interface between the material of the core structure and the matrix.
  • the sheath structure is a mirror structure, for example a metallic coating or a Bragg mirror.
  • a metallic coating may have a high reflectivity for the emit light of the active region, for example a reflectivity greater than about 90%, for example greater than about 95%, for example greater than about 97%.
  • the metallic coating comprises silver or aluminum.
  • a photoconductive structure 132 overhangs the respective emission area 118 of the active area on the light exit surface 120 (in one direction by the amount of the dimension of the overlap slurry 320 - the length of 118).
  • the light-conducting structures have a non-linear course from the light entry surface or emission surface 118 to the light exit slit 120.
  • the light-conducting structures have a kink or a curvature in the. Course through the substrate and are, for example, concave and / or convex shaped.
  • the diameter of the light-emitting structures increases continuously in the direction of the light-emitting surface emitting surface 118.
  • the light-conducting structures 132 seen in cross-section, each have two straight line sections which are separated by a bend.
  • FIG. 3A shows a table 11 e for different angles of incidence theta or ⁇ of the light conducted in the light-conducting structures on the interface between substrate and air, ie the angle of incidence of the light on the emission surface 118 or light exit 118 (3), an angle of incidence i in a range of 0 ° to ma imal of 34.73 ° is required for a photoconductive structure having a refractive index of 1.52 in order for the light to have a maximum angle of 60 ° and thus to Luminous 100 is glare-free for office applications. It is achieved by the light-conducting structures 132 of the transmission structure that the light 100 is glare-free for emission angles above a glare angle ⁇ . Furthermore, different overlap slurries 320 and heights 310 of the light conducting structures are shown in the table in FIG. are also illustrated in FIG.3B in the cross-sectional view.
  • the size of the radiation surface 120 and the height 310 of the optical structures 132 depend on the size and shape of the corresponding emission surface 118.
  • the maximum height 310 of the light-conducting structures 132 results from the overlap width D:
  • the glare angle cc is for example given by the Bestiramungs divide the lamp 100, for example, 60 ° in an office room lighting.
  • the height 310 of the photoconductive structures is approximately equal to the thickness of the substrate. It can be seen from the table of FIG. 3A that for different heights of the photoconductive structures, i. For example, for different thicknesses of substrates, given overlap widths 320 may result. Essentially, there is no light from the luminaire 100
  • the cells each have a maximum height 310 and a non-linear, for example concave, edge.
  • the maximum height 310 may be the same for all photoconductive structures or may vary.
  • the reflective mantle structure of the photoconductive structures causes the optically active area of the luminaire, that is, the entire optically active area of the light exit side 120 to be enlarged to the entire optically active area of the light entrance side 118, for example, by 30% to 35 %, as shown in (1) or (2).
  • the determination of the height 310 of the light-conducting structures is thus required.
  • the height 310 can be calculated by (4) if the angle of light ⁇ is known.
  • the overlap width 320 may be set to give typical thicknesses of glass substrates for the height 310 of the photoconductive structures, ie, the height 310 may be adjusted using the overlap width 320.
  • FIG. shows a schematic plan view of a substrate according to various embodiments. Illustrated is the anti-glare structure with light-guiding structures 132 in a mat 112.
  • the anti-glare structure in various embodiments, has light-conducting structures 132 with a circular cross-section, which are arranged in a lattice-like manner.
  • the luminaire for which the substrate illustrated in FIG. 4 belongs can essentially correspond to an exemplary embodiment described above.
  • the Lich conductive structures can also be referred to as pixels.
  • the respective Lich conductive structures 132 may have the same radius or diameter and may be arranged regularly to each other.
  • the matri 112 is formed or arranged and connects the conductive structures 132 with each other.
  • the the matrix. 112 is illustratively an optically inactive blank surface over which no light from the underlying active region can be emitted.
  • the photoconductive structures 132 may be arranged to each other such that a current distribution structure of the active region is substantially covered, for example, in an arrangement according to a closest packing. In this way, it is possible, for example, to cover 33% of the surface of the luminaire with the current distribution structure and through the deconstruction structure. For example, luminaires with a size of 50 x 50 cm 2 can be produced and de-fused with the anti-glare structure.
  • the photoconductive structures 132 may have a square cross-section.
  • the photoconductive structures 132 may be arranged in a hexagonal or polygonal configuration.
  • the light-guiding structures 132 or pixels can be arranged with a smaller variation than for example in a square or circular arrangement.
  • the current distribution structure may also be hexagonal, so that a hexagonal arrangement covers the current distribution structure without forming larger, optically inactive empty areas.
  • the light-conducting structures 132 may have further basic patterns or polygons.
  • the Lich conductive structures 132 may have a triangular, square, oval or pentagonal cross section in plan view.
  • the cross-sectional shape of the photoconductive structures 132 may be different across the grid and may also describe different geometric figures. In this way, there is a greater freedom in the design of the lamp.
  • the lamp may have a curved Lichtaustrittstlache and the Iicht missionsden structures could tsform in their Querschni and / or their arrangement to each other adapted to this curvature, for example, to visually enhance or compensate.
  • 1 icht is differently trained and / or arranged.
  • Structures are presented an information For example, a pictogram, ideogram, symbol, lettering, image or the like.
  • FIG. 5A, B show a schematic cross-sectional views of a substrate according to various embodiments.
  • exemplary beam paths of different angles are shown to the horizontal, the Entblendungsfunktion the light conductive structures 132 illustrate (502: 22 °; 504: 37 °; 506; 30 °; 508; 41 0; 510; 34 ° ⁇ .
  • FIG. 5A shows a light-emitting structure with a linear progression from the light entry surface to the light exit surface.
  • the light-emitting structure i FIG. 5B at the same height has a kink in the course of the light entry surface to the light exit surface and thus a non-linear course.
  • the Abstrahlt pool 118 and the height 310 are set as described above.
  • the luminaire to which the light-conducting structure illustrated in FIGS. 5A, B belongs can substantially correspond to an embodiment described above.
  • the reflective edge of the light-guiding structure 132 is formed in cross-section by a single straight line section. This results in the radiation, starting from a point at a corner of the emission surface 118, an emission limit angle of 30 °, By specular reflection on the reflective edge of the photoconductive structure but also beams 502 with a much smaller angle, for example, 22 °, emitted as illustrated in FIG. 5B. This can be reduced by the kink in the reflective edge of the Iicht meetden structure.
  • the non-linear course of the light-emitting structures thus causes an increase in the intensity of the light with an angle below the predetermined maximum angle, for example, 60 0 , is emissive.
  • the light-conducting structures may each have fundamentally different courses from the light entrance surface to the light exit surface. However, the number of possible progressions is limited by the height 310 and the overlap width 320 of the light-conducting structures.
  • FIGS. 6A, B show flowcharts of a method 600 for producing a luminaire according to various
  • the luminaire may essentially correspond to an embodiment described above.
  • the method comprises forming 602 a translucent substrate having a de-glare structure.
  • the anti-glare structure has a Lichteintri11sseite and a de light entry side opposite light exit side.
  • the method 600 further comprises forming 604 a translucent, first electrode layer on or above the light entry side of the substrate. Furthermore, the method 600 includes forming 606 an organic functional layer structure for emitting light, on or above the light-transmissive, first electrode layer. Furthermore, the method 600 comprises forming 608 a second electrode layer on or above the organic radioactive layer structure.
  • forming the anti-glare structure comprises forming 614 the substrate having a plurality of holes 622.
  • the plurality of holes 622 extend from the light entrance side toward
  • a substrate 102 as Matrix 112 or provided from a matrix material 612.
  • holes 622 are formed in the matrix, for example by means of a laser ablation, a CNC milling machine or a particle beam method, for example a water jet cutting.
  • forming the debonding structure includes forming 614 a plurality of holes 622 in the substrate.
  • the plurality of holes 622 also extend from the light entrance side toward the light exit side.
  • the matrix 112 is already forming a hole-outside iron, for example by means of an injection molding, a 3D printing.
  • the holes 622 are, as described above, formed with a non-inearen course between the light entrance side and the light exit side.
  • the holes 622 in the matrix 112 of the substrate 102 may already have a non-conductive structure or structure.
  • a translucent planarization structure is applied to the light entrance side and thus closes the openings of the holes 622 and / or forms a substantially planar surface so that the active area of the luminaire can be formed over the openings of the holes .
  • the translucent structure may be, for example, a foil, disc or plate of a non-metallic, organic or inorganic glass.
  • forming the anti-glare structure includes forming 616 a mirror structure 624 on the surface of the matrix. 112 in the holes, ie the walls of the holes are mirrored. As a result, for example, the sheath structure of the light-conducting structures is formed.
  • the light reflective sheath structure 116 is reflective to at least one wavelength range of the emissive light of the luminaire. Additionally or alternatively, the light-reflecting sheath structure 116 is designed to be diffusely reflecting for at least one wavelength range of the emissable light of the luminaire.
  • the mirror structure 624 has, for example, a metal layer, for example, the walls of the holes are mirrored. Alternatively or additionally, the mirror structure 624 has, for example, a Bragg reflector, for example, at least two dielectric layers with different ones are formed on the walls
  • forming the anti-glare structure further includes filling 618 the plurality of holes 622 with a translucent material 626.
  • the translucent material 626 is translucent, i. optically conductive, for at least a portion of the light emitted by the lamp light.
  • the translucent material 626 is a non-metallic, organic or organic glass, for example a polymer or a metal oxide ceramic.
  • Example 1 is a luminaire comprising: a translucent substrate having a defogging structure, the antiglare structure having a light entrance side and a light entrance side opposite
  • Example 2 the luminaire of Example 1 optionally comprises the antiglare structure having a plurality of photoconductive structures extending between the
  • Light entrance side and the light exit side extend and connect these optically with each other.
  • the luminaire of Example 1 optionally has the fact that the light-conducting structures each have a translucent core structure and a light-reflecting sheath structure surrounding the core structure.
  • Example 4 the luminaire of Example 2 or 3 optionally has the cladding structure having a non-linear course from the light entrance side to the light exit side,
  • the luminaire of one of examples 2 to 4 optionally has the fact that the light-conducting structures have a first end face on the light entry side and have a second end face on the light exit side, wherein the total area of the end faces of
  • Light exit side is greater than the total area of the end faces of the light entrance side.
  • Example 6 the luminaire of Example 5 optionally has the total area of the end faces of the
  • Light exit side is at least about 30% larger than the total area of the end faces of the light entrance side.
  • Example 7 the luminaire of one of Examples 1 to 6 optionally has the substrate having a substantially closed and / or planar surface on the light exit side and / or the light entry side.
  • Example 8 the luminaire of any one of Examples 1 to 6 optionally includes the first electrode layer directly on the first electrode layer
  • Example 9 Light entry side of the anti-glare structure is formed.
  • the luminaire of any one of Examples 1 to 8 optionally includes that the anti-glare structure is formed such that light having a projection angle of at most approximately 60 ° is emitted from the light exit side.
  • Example 10 the luminaire of one of Examples 1 to 9 optionally has the luminaire as a surface light source for general illumination, in particular as an office luminaire.
  • Example 11 is a method of manufacturing a luminaire. The method comprises: forming a substrate having a glare-deficient structure, the glare-reduction structure having a light entry side and a light exit side opposite the light entry side; Forming a translucent, first electrode layer on or above the light input side of the substrate; Forming an organic functional layer structure for emitting light, onto or over the translucent first electrode layer; and forming a second electrode layer or over the organic functional layer structure.
  • Example 12 the method of Example 11 optionally includes forming the deblast structure to form the substrate having a plurality of holes, the plurality of holes extending from the light entrance side toward the light exit side.
  • the method of Example 11 optionally includes forming the debonding structure including forming a plurality of holes in the substrate, wherein the several holes from the light entrance side to the light exit side. extend.
  • Example 14 the process of any of Examples 11 to
  • the forming the deblast structure includes a lobe of the plurality of holes in the substrate.
  • Example 15 the process of any of Examples 11 to
  • that forming the anti-glare structure further comprises filling the plurality of holes with a light-transmissive material.
  • the luminaire may have a plurality of active regions arranged on or above a common substrate.
  • the multiple active areas may be arranged in a common encapsulation structure.
  • the multiple active areas may be the same or different, for example emit light of different color valence.

Abstract

Dans différents modes de réalisation donnés à titre d'exemple, l'invention concerne un éclairage. Cet éclairage comporte un substrat translucide présentant une structure anti-éblouissement, la structure anti-éblouissement présentant un côté d'entrée de lumière et un côté de sortie de lumière opposé au côté d'entrée de lumière; une première couche d'électrode translucide formée sur ou au-dessus du côté d'entrée de lumière du substrat; une structure de couches fonctionnelles organiques conçue pour émettre de la lumière, ladite structure étant formée sur ou au-dessus de la première couche d'électrode translucide; et une seconde couche d'électrode formée sur ou au-dessus de la structure de couches fonctionnelles organiques.
PCT/EP2017/052259 2016-02-03 2017-02-02 Éclairage et procédé pour fabriquer un éclairage WO2017134168A1 (fr)

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DE102016101872.4A DE102016101872A1 (de) 2016-02-03 2016-02-03 Leuchte und Verfahren zum Herstellen einer Leuchte

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WO2004102064A1 (fr) * 2003-05-15 2004-11-25 Lucea Ag Source lumineuse
EP1763081A2 (fr) * 2005-09-12 2007-03-14 Kabushiki Kaisha Toyoda Jidoshokki Dispositif électroluminescent de grande surface
EP1843081A2 (fr) * 2006-04-03 2007-10-10 Nimbus Design GmbH Eclairage, en particulier éclairage d'intérieur
WO2008122907A2 (fr) * 2007-04-04 2008-10-16 Philips Intellectual Property & Standards Gmbh Composant électroluminescent
WO2013041137A1 (fr) * 2011-09-21 2013-03-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif réflecteur de mise en forme de faisceau destiné à générer une caractéristique de rayonnement souhaitée à partir d'une caractéristique de rayonnement d'une source de lumière surfacique

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