DE202009018867U1 - Simple system for light extraction from planar light guides by microprisms - Google Patents

Simple system for light extraction from planar light guides by microprisms Download PDF

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Publication number
DE202009018867U1
DE202009018867U1 DE202009018867.1U DE202009018867U DE202009018867U1 DE 202009018867 U1 DE202009018867 U1 DE 202009018867U1 DE 202009018867 U DE202009018867 U DE 202009018867U DE 202009018867 U1 DE202009018867 U1 DE 202009018867U1
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light
light guide
microprisms
optical fiber
coupling
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories
    • B65D19/40—Elements for spacing platforms from supporting surface
    • B65D19/42—Arrangements or applications of rollers or wheels
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00014—Materials for the load supporting surface
    • B65D2519/00024—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00009—Materials
    • B65D2519/00049—Materials for the base surface
    • B65D2519/00059—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00263—Overall construction of the pallet
    • B65D2519/00268—Overall construction of the pallet made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00283—Overall construction of the load supporting surface
    • B65D2519/00288—Overall construction of the load supporting surface made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00736—Details
    • B65D2519/0081—Elements or devices for locating articles
    • B65D2519/00815—Elements or devices for locating articles on the pallet
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0066—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
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Abstract

Plattenförmiger Lichtleiter (1) mit integrierten Prismen, wobei auf einer Oberfläche Licht auskoppelnde Mikroprismen vertieft im Lichtleiter (1) integriert sind, dadurch gekennzeichnet, dass die Mikroprismen jeweils als Kegel ausgebildet sind.Plate-shaped light guide (1) with integrated prisms, light coupling-out microprisms being deeply integrated in the light guide (1), characterized in that the microprisms are each designed as cones.

Description

Die vorliegende Erfindung bezieht sich auf einen plattenförmigen Lichtleiter nach dem Oberbegriff von Anspruch 1.The present invention relates to a plate-shaped light guide according to the preamble of claim 1.

Herkömmliche Lichtleitersysteme koppeln das Licht aus durch

  • • auf der Oberfläche aufgedruckte Störstellen, von denen dann Streulicht ausgeht, das den Lichtleiter dann verlässt,
  • • auf der Oberfläche aufgeraute lokale Bereiche, von denen dann Streulicht ausgeht, das den Lichtleiter dann verlässt,
  • • durch im Kunststoffmaterial eingebrachte Streuzentren aus Materialien mit anderem optischem Brechungsindex als dem des Lichtleiters (eingemischte Glas- oder Kunststoffkugeln).
Conventional fiber optic systems couple the light out
  • • impurities printed on the surface, from which then scattered light emanates, which then leaves the optical fiber,
  • • local areas roughened on the surface, from which then scattered light emanates, which then leaves the light guide,
  • • due to scattering centers in the plastic material made of materials with a different optical refractive index than that of the light guide (mixed glass or plastic balls).

Diese herkömmlichen Lichtleitersysteme haben durch die rein statistisch erfolgende Auskopplung Nachteile in der Lichtrichtung, da in der Regel das Licht gleichmäßig in alle Raumrichtungen abgestrahlt wird. Derart ergeben sich Nachteile in der Effizienz, da der im Streuzentrum absorbierte Lichtanteil hoch ist und nicht alles gestreute Licht den Lichtleiter verlässt.These conventional light guide systems have disadvantages in the direction of light due to the purely random extraction, since in general the light is radiated uniformly in all spatial directions. This results in disadvantages in terms of efficiency, since the proportion of light absorbed in the scattering center is high and not all scattered light leaves the light guide.

In den gattungsbildenden Druckschriften DE 697 35 125 T2 , US 2008/0094853 A1 und US 2009/0073721 A1 ist jeweils ein plattenförmiger Lichtleiter beschrieben mit integrierten Prismen, wobei auf einer Oberfläche Licht auskoppelnde Mikroprismen vertieft oder erhaben im Lichtleiter integriert sind. Die Lichtstrahlen innerhalb des Lichtleiters werden durch die Mikroprismen an einer Oberflächenseite durch Brechung und Totalreflexion so umgelenkt, dass der Lichtstrahl die Platte verlässt. Diese Oberflächenprismen können

  • • als flächige Anordnung von Prismensegmenten
  • • in die Oberfläche hineingesenkt oder
  • • über der Oberfläche erhaben sein.
In the generic pamphlets DE 697 35 125 T2 . US 2008/0094853 A1 and US 2009/0073721 A1 is in each case a plate-shaped light guide described with integrated prisms, wherein on a surface light outcoupling microprisms recessed or sublime are integrated in the light guide. The light rays within the light guide are deflected by the microprisms on a surface side by refraction and total reflection so that the light beam leaves the plate. These surface prisms can
  • • as a flat arrangement of prism segments
  • • sunk into the surface or
  • • be raised above the surface.

Häufig wird zu Beleuchtungszwecken der Anspruch formuliert, dass eine über die Fläche gleichmäßige Lichtabgabe aus dem Lichtleiter erfolgen soll, mit vorgegebener Winkelverteilung des Lichtes. Diese Aufgabe wird mit einem plattenförmigen Lichtleiter mit den Merkmalen von Anspruch 1 gelöst. Dabei zeichnet sich der erfindungsgemäße Lichtleiter dadurch aus, dass die Mikroprismen jeweils als Kegel ausgebildet sind.Frequently, for lighting purposes, the claim is formulated that a light output which is uniform over the surface should take place from the light guide, with a predetermined angular distribution of the light. This object is achieved with a plate-shaped light guide having the features of claim 1. In this case, the light guide according to the invention is characterized in that the microprisms are each formed as a cone.

Die Größe und Form dieser als Kegeln ausgebildeten prismatischen Strukturen auf der Oberfläche müssen präzise bestimmt sein und können in ihrer Größe mit den Abständen zu den einkoppelnden Leuchtmitteln variieren, um eine konstante Lichtauskopplung zu erhalten. Die Oberflächen der Auskoppelprismen müssen in ihrem Winkel so bestimmt sein, dass Lichtstrahlen im Lichtleiter, die statistisch zufällig auf diese Oberfläche treffen, entweder durch Brechung oder durch Totalreflexion mit anschließender Brechung den Lichtleiter verlassen, entweder zur Strukturseite hin oder ihr entgegen. Die Winkelverteilung der auskoppelnden Lichtstrahlen ist ebenfalls durch die Prismenwinkel einstellbar.The size and shape of these cone-shaped prismatic structures on the surface must be precisely determined and can vary in size with the distances to the incipient bulbs to obtain a constant light extraction. The surfaces of the decoupling prisms must be determined in their angle so that light rays in the optical fiber, which randomly hit this surface, either by refraction or by total reflection followed by refraction leave the optical fiber, either towards the structure side or against her. The angular distribution of the decoupling light beams is also adjustable by the prism angle.

Auch können die Stirnseiten des Lichtleiters, an denen nicht eingekoppelt wird, reflektierend ausgebildet sein, um Lichtstrahlen in den Lichtleiter zurück zu reflektieren, um dann auf diesem Weg eine weitere Möglichkeit zur Wechselwirkung mit einem Prisma zu erlangen und dann auszukoppeln.Also, the end faces of the light guide, which is not coupled to be reflective to be formed to reflect light rays back into the light guide, and then to obtain in this way another way to interact with a prism and then decouple.

Die Einkopplung in rechteckige Platten kann auch über mehrere Seiten erfolgen. Die einkoppelnden Lichtquellen können z. B. LED, Fluoreszenzröhren, Halogenlampen und weitere Leuchtmittel sein.The coupling into rectangular plates can also be done over several pages. The einkoppelnden light sources can, for. B. LED, fluorescent tubes, halogen lamps and other bulbs.

Die Geometrie der Platte kann auch kreis- bzw. ellipsenförmig sein mit Einkopplung über den Umfang oder bei einer innen geöffneten Geometrie über den inneren Rand mit optionaler reflektierender Ausbildung des äußeren Umfangs.The geometry of the plate may also be circular or elliptical with coupling over the circumference or with an inside open geometry over the inner edge with optional reflective outer circumference formation.

Die Erfindung wird im Folgenden durch das Beschreiben einiger Ausführungsformen unter Bezugnahme auf die Figuren erläutert, wobeiThe invention will be explained in the following by describing some embodiments with reference to the figures, wherein

1 einen erfindungsgemäßen Lichtleiter mit seitlicher einseitiger Lichteinkopplung und Lichtauskopplung aus der Fläche mit Hilfe von Mikroprismen; 1 a light guide according to the invention with lateral unilateral light coupling and light extraction from the surface by means of microprisms;

2a einen erfindungsgemäßen Lichtleiter mit Licht auskoppelnden Prismen in eine Oberfläche hinein und seitlicher einseitiger Lichteinkopplung; 2a a light guide according to the invention with light auskoppelnden prisms in a surface and lateral one-sided Lichteinkopplung;

2b einen erfindungsgemäßen Lichtleiter mit Einzelprismen in flächiger Anordnung aus der Oberfläche heraus und seitlicher Lichteinkopplung; 2 B a light guide according to the invention with individual prisms in a flat arrangement out of the surface and side light coupling;

3 eine Lichtauskopplung aus der Fläche durch Brechung bzw. Totalreflexion; 3 a light extraction from the surface by refraction or total reflection;

4 die variierende Größe der Kegel als Funktion des Abstandes vom Leuchtmittel; 4 the varying size of the cones as a function of the distance from the illuminant;

5 eine Lichtauskopplung nach Reflexion an einer verspiegelten Stirnfläche; 5 a light extraction after reflection at a mirrored end face;

6 eine nicht zur Erfindung gehörende Scheibe mit Lichteinkopplung von innen und zirkulare Lichtauskoppelprismen, und 6 a not belonging to the invention disc with light input from the inside and circular light extraction prisms, and

7 einen erfindungsgemäßen, als Scheibe ausgebildeten Lichtleiter mit Lichteinkopplung von außen und optional Öffnungen in der Scheibe und Prismensegmenten zur Lichtauskopplung
zeigt. 7 a light guide according to the invention formed as a disc with light input from the outside and optional openings in the disc and prism segments for light extraction
shows.

1 zeigt einen Lichtleiter 1 mit einseitiger Lichteinkopplung von der Seite und Lichtauskopplung aus der Fläche mittels der als Kegel ausgebildeten Mikroprismen. Stirnseiten des Lichtleiters 1, an denen nicht eingekoppelt wird, sind reflektierend ausgebildet, siehe auch 5. 1 shows a light guide 1 with one-sided light coupling from the side and light extraction from the surface by means of the cone shaped microprisms. End faces of the light guide 1 to which is not coupled, are reflective, see also 5 ,

Wie in den 2a und 2b gezeigt, können die das Licht auskoppelnden Prismen in die Oberfläche des Lichtleiters hinein oder aus dieser heraus gestaltet sein.As in the 2a and 2 B As shown, the prisms coupling out the light may be formed into or out of the surface of the light guide.

3 zeigt die Lichtauskopplung 6, 7 an einem Lichtleiter 1 aus der Fläche durch Brechung bzw. Totalreflexion sowohl oberseitig, an welchem die Auskoppeloptiken 5 angeordnet sind, als auch unterseitig. 3 shows the light extraction 6 . 7 on a light guide 1 from the surface by refraction or total reflection both on the upper side, at which the coupling-out optics 5 are arranged, as well as the lower side.

4 zeigt eine Ausführungsform eines Lichtleiters 1, bei welcher die Auskoppelstrukturen an der Oberfläche in ihrer Größe mit dem Abstand zur einkoppelnden Lichtquelle 3 zur Einstellung einer konstanten Lichtauskopplung variieren. 4 shows an embodiment of a light guide 1 in which the coupling-out structures on the surface are of the same size as the distance to the light source to be coupled in 3 vary to set a constant light extraction.

6 zeigt eine nicht zur Erfindung gehörende Ausführungsform eines Lichtleiters 1 mit zirkularen Lichtauskoppelprismen. 6 shows a not belonging to the invention embodiment of a light guide 1 with circular light extraction prisms.

7 zeigt einen Lichtleiter 1 in Form einer Scheibe mit einer Mehrzahl am äußeren Umfang angeordneten Leuchtmittel 9. 7 shows a light guide 1 in the form of a disk with a plurality of bulbs arranged on the outer circumference 9 ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Lichtleiteroptical fiber
22
Lichtauskoppelnde PlatteLight coupling plate
33
Lichtquellelight source
44
Reflektierend beschichtete StirnseiteReflective coated front
55
Auskoppeloptikoutput optical system
66
Oberseitig auskoppelndes LichtTop coupling out light
77
Unterseitig auskoppelndes LichtUncoupling light on the underside
88th
Reflexionreflection
99
LeuchtmittelLamp

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 69735125 T2 [0004] DE 69735125 T2 [0004]
  • US 2008/0094853 A1 [0004] US 2008/0094853 A1 [0004]
  • US 2009/0073721 A1 [0004] US 2009/0073721 A1 [0004]

Claims (6)

Plattenförmiger Lichtleiter (1) mit integrierten Prismen, wobei auf einer Oberfläche Licht auskoppelnde Mikroprismen vertieft im Lichtleiter (1) integriert sind, dadurch gekennzeichnet, dass die Mikroprismen jeweils als Kegel ausgebildet sind.Plate-shaped light guide ( 1 ) with integrated prisms, wherein on a surface light coupling-out microprisms recessed in the light guide ( 1 ) are integrated, characterized in that the microprisms are each formed as a cone. Lichtleiter (1) nach Anspruch 1, dadurch gekennzeichnet, dass die integrierten, als Kegel ausgebildeten Mikroprismen als flächige Anordnung kleiner geometrischer Segmente realisiert sind, die konstante Dimensionen über die ganze Oberfläche des Lichtleiters (1) aufweisen.Optical fiber ( 1 ) according to claim 1, characterized in that the integrated, formed as a cone microprisms are realized as a planar arrangement of small geometric segments, the constant dimensions over the entire surface of the light guide ( 1 ) exhibit. Lichtleiter (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Licht auskoppelnden, als Kegel ausgebildeten Mikroprismen eine gleichmäßige zur Oberfläche des Lichtleiters (1) vertiefte segmentierte Geometrie aufweisen.Optical fiber ( 1 ) according to claim 1 or 2, characterized in that the light coupling out, designed as a cone microprisms a uniform to the surface of the light guide ( 1 ) have recessed segmented geometry. Lichtleiter (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Lichteinkopplung durch eine oder mehrere Seitenflächen des Lichtleiters (1) realisiert erfolgt.Optical fiber ( 1 ) according to one of claims 1 to 3, characterized in that the light coupling through one or more side surfaces of the light guide ( 1 ) realized. Lichtleiter (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass nicht zur Lichteinkopplung genutzte Seitenflächen verspiegelt ausgeführt sein können.Optical fiber ( 1 ) according to one of claims 1 to 4, characterized in that not used for light coupling side surfaces can be carried out mirrored. Lichtleiter (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Lichteinkopplung durch die Kanten von inneren Öffnungen stattfindet.Optical fiber ( 1 ) according to one of claims 1 to 5, characterized in that the light coupling takes place through the edges of inner openings.
DE202009018867.1U 2009-12-15 2009-12-15 Simple system for light extraction from planar light guides by microprisms Expired - Lifetime DE202009018867U1 (en)

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DE202009018867.1U DE202009018867U1 (en) 2009-12-15 2009-12-15 Simple system for light extraction from planar light guides by microprisms

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DE202015104012U1 (en) * 2015-07-31 2016-11-03 Zumtobel Lighting Gmbh Optical fiber element
DE102017003036A1 (en) * 2017-03-29 2018-10-04 Singulus Technologies Ag illuminant
DE102018113369A1 (en) * 2018-06-05 2019-12-05 polyoptics GmbH display device

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DE102014100724B4 (en) 2014-01-23 2023-07-06 HELLA GmbH & Co. KGaA lighting device

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US20080094853A1 (en) 2006-10-20 2008-04-24 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities
US20090073721A1 (en) 2006-04-20 2009-03-19 Fujikura Ltd. Display apparatus, manufacturing method thereof, pattern display method, blind apparatus, and blind method

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US20090073721A1 (en) 2006-04-20 2009-03-19 Fujikura Ltd. Display apparatus, manufacturing method thereof, pattern display method, blind apparatus, and blind method
US20080094853A1 (en) 2006-10-20 2008-04-24 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities

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Publication number Priority date Publication date Assignee Title
DE202015104012U1 (en) * 2015-07-31 2016-11-03 Zumtobel Lighting Gmbh Optical fiber element
EP3329178B1 (en) * 2015-07-31 2021-04-21 Zumtobel Lighting GmbH Optical waveguide element
DE102017003036A1 (en) * 2017-03-29 2018-10-04 Singulus Technologies Ag illuminant
DE102018113369A1 (en) * 2018-06-05 2019-12-05 polyoptics GmbH display device

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