EP2365243A1 - Lamp - Google Patents

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Publication number
EP2365243A1
EP2365243A1 EP11155286A EP11155286A EP2365243A1 EP 2365243 A1 EP2365243 A1 EP 2365243A1 EP 11155286 A EP11155286 A EP 11155286A EP 11155286 A EP11155286 A EP 11155286A EP 2365243 A1 EP2365243 A1 EP 2365243A1
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EP
European Patent Office
Prior art keywords
leds
lenses
luminaire according
lens
lamp
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP11155286A
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German (de)
French (fr)
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EP2365243B1 (en
Inventor
Markus Kocks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RIDI Leuchten GmbH
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RIDI Leuchten GmbH
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Publication date
Application filed by RIDI Leuchten GmbH filed Critical RIDI Leuchten GmbH
Priority to PL11155286T priority Critical patent/PL2365243T3/en
Publication of EP2365243A1 publication Critical patent/EP2365243A1/en
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Publication of EP2365243B1 publication Critical patent/EP2365243B1/en
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    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/006—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting for direct lighting only, e.g. task lighting
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire according to the preamble of claim 1.
  • the luminaire according to the invention may be a floor lamp, a wall lamp or a ceiling lamp. Specifically, this luminaire has the task of a standard compliant illumination of a workplace.
  • LED lights which are arranged in a luminaire housing LEDs. It is also known to arrange the LEDs in a field so that the LEDs define a light field. Finally, it is known that the LEDs are each assigned a lens.
  • the present invention seeks to provide a luminaire of the type specified for standard-compliant illumination of a workplace, which requires as little energy.
  • an LED light is created by means of which a standard-compliant illumination of a workplace is possible in an extremely energy-efficient manner.
  • the basic idea is that the entire usable light of the LEDs is directed by means of the lenses on the work surface. This is achieved by a so-called freeform optics. This is understood to mean that the lenses associated with the LEDs are shaped in such a way that they optically reproduce the light emitted by their LEDs exactly on the work surface.
  • each LED can be assigned a separate lens.
  • a common, one-piece lens body is provided for all LEDs.
  • the lenses in the form of the aforementioned free-form optics are then each formed in the region of the LEDs.
  • This design has the advantage that a luminaire can be equipped with a cover disc formed by the lens body, in which the desired freeform optics are formed.
  • an embodiment in which the lens body has a connecting section between two adjacent lenses in a longitudinal direction, which connects the two adjacent lenses, is particularly advantageous. If more than two lenses are adjacent in the longitudinal direction, a corresponding number of connecting sections is provided.
  • the geometry of the lens body can be adapted to save material to the respective arrangement of the LEDs.
  • the respective connecting portion is made thin compared to a lens.
  • "thin" means a comparatively small dimension in the main emission direction of the light or in the optical axis of the respective lens.
  • the lens body has a plurality of lens rows, in each of which a plurality of adjacent in a transverse direction of the lenses are formed. This allows a geometrically simple structure for the lens body can be realized. Preferred is then a further development in which two lens rows adjacent in the longitudinal direction are again connected to one another via an aforementioned connecting section.
  • a plurality of adjacent LEDs in a transverse direction are arranged on a common board.
  • the respective board is attached to the respective, above-mentioned lens row, so that the boards and the lens body form a preassembled lamp unit, which is mounted on the lamp housing.
  • the orientation of the lamp is changeable. This means that the location of the illumination can be changed within certain limits. Thus, starting from a fixed position of the lamp changes in the illumination surface are possible, so that a certain variability is ensured.
  • the orientation can be such that the block with the LEDs can be rotated about a central center axis. As a result, the radiation of the light sweeps over a cone sheath during a rotation. But it is also conceivable that the LED assembly can be gimbaled, so that an even greater variety of variation of the settings is realized.
  • the LEDs adjacent in a longitudinal direction are each arranged in an LED plane, which is inclined relative to the longitudinal direction.
  • the emission direction of the LEDs can be inclined relative to the longitudinal direction determined by the geometry of the luminaire housing, which improves the illumination of the working area.
  • the LED levels can run parallel to each other.
  • the LEDs adjacent in a transverse direction may be arranged in the same LED plane.
  • the lenses adjacent in the longitudinal direction in the lens body are arranged and / or oriented parallel to the LED planes is particularly advantageous.
  • the optical axis of the respective lens is perpendicular to the respective LED level.
  • the one-piece lens body takes into account the inclination of the LEDs, which simplifies assembly.
  • a lamp 13 As in Fig. 1 is shown, it is a floor lamp. This has a luminaire housing 1.
  • the Luminaire 13 also has a lamp base 14 and a lamp rod 15 which connects the lamp base 13 with the lamp housing 1.
  • a field of LEDs 2 is arranged in the luminaire housing 1.
  • the field is designed rectangular and contains by way of example three times four LEDs 2.
  • each LED 2 is associated with a lens 3. This serves as an optic for the light emitted by the LED 2 light.
  • each LED 2 can be assigned a separate lens 3.
  • a common, one-piece lens body 5 is assigned to all the LEDs 2, wherein in the area of the LEDs 2 a respective lens 3 is formed in the lens body 5.
  • the lens body 5 has between two adjacent in a longitudinal direction 6 of the lamp housing 1 lenses 3, a connecting portion 7, which connects the two adjacent lenses 3 together.
  • the respective connecting portion 7 is - seen in the direction of the optical axis of the respective lens 3 - thin compared to a lens.
  • the lens body 5 has a plurality of lens rows 8, in each of which a plurality of adjacent lenses 3 are formed in a transversely extending to the longitudinal direction transverse direction 9 of the lamp housing 1.
  • a plurality of adjacent lenses 3 are formed in a transversely extending to the longitudinal direction transverse direction 9 of the lamp housing 1.
  • four such rows of lenses are provided, in each case three lenses 3 are arranged side by side.
  • the respective connecting section 7 expediently connects two adjacent rows of lenses 8 in the longitudinal direction 6.
  • a plurality of LEDs 2 adjacent in the transverse direction 9 are arranged on a common circuit board 10.
  • the respective board 10 is attached to the respective lens row 8, such that the boards 10 and the lens body 5 form a preassemblable lamp unit 11 which is mounted on the lamp housing 1 as a whole.
  • the light of the lamp 13 is blinding.
  • the orientation of the lamp 13 is suitably changeable.
  • the LEDs 2 adjacent in the longitudinal direction 6 are each arranged in an LED plane 12, which is inclined with respect to the longitudinal direction 6.
  • the lenses 3 adjacent to one another in the longitudinal direction 6 in the lens body 5 are each arranged and / or oriented parallel to the LED planes 12 such that their respective optical axis runs perpendicular to said LED plane 12.
  • the LED levels 12 are parallel to each other.
  • the LEDs 2 adjacent in the transverse direction 9 are arranged in the same LED plane 12.
  • the basic principle is that the lenses 3 are designed as so-called free-form optics. This means that the lenses 3 focus the light emitted by their LEDs 2 exactly on a defined surface 4, namely the surface of the workplace. An existing radiation beyond the predetermined by the lenses 3 radiation angle is not given. Ultimately, this means that the workplace is illuminated exactly with a sharply delimited lighting edge.

Abstract

The lamp has a field of LEDs (2) arranged in a lamp housing (1), and lenses (3) attached to the LEDs, where the lenses are formed such that light radiated by the LEDs illuminates a defined limited surface. A common, single piece lens body (5) is attached to the LEDs and has a connecting section (7) provided between adjacent lenses in a longitudinal direction (6) for connecting the lenses with each other. The LEDs are arranged in a common printed circuit board (10) that is attached to lens rows (8) of the lens body for forming a premountable lamp unit.

Description

Die Erfindung betrifft eine Leuchte nach dem Oberbegriff des Anspruchs 1.The invention relates to a luminaire according to the preamble of claim 1.

Bei der erfindungsgemäßen Leuchte kann es sich um eine Stehleuchte, um eine Wandleuchte oder um eine Deckenleuchte handeln. Konkret hat diese Leuchte die Aufgabe einer normkonformen Ausleuchtung eines Arbeitsplatzes.The luminaire according to the invention may be a floor lamp, a wall lamp or a ceiling lamp. Specifically, this luminaire has the task of a standard compliant illumination of a workplace.

Es gibt eine Vielzahl von LED-Leuchten, bei denen in einem Leuchtengehäuse LEDs angeordnet sind. Dabei ist es außerdem bekannt, die LEDs in einem Feld anzuordnen, so dass die LEDs ein Lichtfeld definieren. Schließlich ist es bekannt, dass den LEDs jeweils eine Linse zugeordnet ist.There are a variety of LED lights, which are arranged in a luminaire housing LEDs. It is also known to arrange the LEDs in a field so that the LEDs define a light field. Finally, it is known that the LEDs are each assigned a lens.

Der Nachteil bei den bekannten LED-Leuchten zur Ausleuchtung eines Arbeitsplatzes liegt darin, dass seitlich Licht abgestrahlt wird, welches zur eigentlichen Ausleuchtung des Arbeitsplatzes gar nicht benötigt wird. Dies bedeutet aber einen insgesamt erhöhten Stromverbrauch.The disadvantage of the known LED lights for illuminating a workplace is that the side light is emitted, which is not required for the actual illumination of the workplace. But this means an overall increased power consumption.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Leuchte der eingangs angegebenen Art zur normkonformen Ausleuchtung eines Arbeitsplatzes zu schaffen, welche möglichst wenig Energie benötigt.Based on this, the present invention seeks to provide a luminaire of the type specified for standard-compliant illumination of a workplace, which requires as little energy.

Die technische Lösung ist gekennzeichnet durch das Merkmal im Kennzeichen des unabhängigen Anspruchs.The technical solution is characterized by the feature in the characterizing part of the independent claim.

Dadurch ist eine LED-Leuchte geschaffen, mittels der auf äußerst energiesparende Weise eine normkonforme Ausleuchtung eines Arbeitsplatzes möglich ist. Die Grundidee besteht dabei darin, dass das gesamte nutzbare Licht der LEDs mittels der Linsen auf die Arbeitsfläche gelenkt wird. Erreicht wird dies durch eine sogenannte Freiformoptik. Darunter ist zu verstehen, dass die den LEDs zugeordneten Linsen derart geformt sind, dass sie das von ihren LEDs abgegebene Licht exakt auf die Arbeitsfläche optisch abbilden.As a result, an LED light is created by means of which a standard-compliant illumination of a workplace is possible in an extremely energy-efficient manner. The basic idea is that the entire usable light of the LEDs is directed by means of the lenses on the work surface. This is achieved by a so-called freeform optics. This is understood to mean that the lenses associated with the LEDs are shaped in such a way that they optically reproduce the light emitted by their LEDs exactly on the work surface.

Dabei kann gemäß einer Weiterbildung jeder LED eine separate Linse zugeordnet sein.In this case, according to a development, each LED can be assigned a separate lens.

Es ist alternativ aber auch gemäß einer anderen Weiterbildung möglich, dass für sämtliche LEDs ein gemeinsamer, einstückiger Linsenkörper vorgesehen ist. Bei diesem Linsenkörper sind dann im Bereich der LEDs jeweils die Linsen in Form der vorgenannten Freiformoptiken ausgebildet. Diese Ausbildung hat den Vorteil, dass eine Leuchte mit einer durch den Linsenkörper gebildeten Abdeckscheibe bestückt werden kann, in welcher die gewünschten Freiformoptiken ausgebildet sind.Alternatively, it is also possible according to another development that a common, one-piece lens body is provided for all LEDs. In the case of this lens body, the lenses in the form of the aforementioned free-form optics are then each formed in the region of the LEDs. This design has the advantage that a luminaire can be equipped with a cover disc formed by the lens body, in which the desired freeform optics are formed.

Besonders vorteilhaft ist dabei eine Ausführungsform, bei welcher der Linsenkörper zwischen zwei in einer Längsrichtung benachbarten Linsen einen Verbindungsabschnitt aufweist, der die beiden benachbarten Linsen miteinander verbindet. Sofern mehrer als zwei Linsen in der Längsrichtung benachbart sind, ist eine entsprechende Anzahl an Verbindungsabschnitten vorgesehen. Mit Hilfe der Verbindungsabschnitte kann die Geometrie des Linsenkörpers materialsparend an die jeweilige Anordnung der LEDs angepasst werden. Insbesondere kann hierzu vorgesehen sein, dass der jeweilige Verbindungsabschnitt im Vergleich zu einer Linse dünn ausgestaltet ist. Im vorliegenden Zusammenhang bedeutet "dünn" eine vergleichsweise geringe Abmessung in der der Hauptabstrahlrichtung des Lichts bzw. in der optischen Achse der jeweiligen Linse.In this case, an embodiment in which the lens body has a connecting section between two adjacent lenses in a longitudinal direction, which connects the two adjacent lenses, is particularly advantageous. If more than two lenses are adjacent in the longitudinal direction, a corresponding number of connecting sections is provided. With the help of the connecting portions, the geometry of the lens body can be adapted to save material to the respective arrangement of the LEDs. In particular, it can be provided for this purpose that the respective connecting portion is made thin compared to a lens. In the present context, "thin" means a comparatively small dimension in the main emission direction of the light or in the optical axis of the respective lens.

Zweckmäßig kann vorgesehen sein, dass der Linsenkörper mehrere Linsenreihen aufweist, in denen jeweils mehrere in einer Querrichtung benachbarte Linsen ausgebildet sind. Hierdurch kann ein geometrisch einfacher Aufbau für den Linsenkörper realisiert werden. Bevorzugt ist dann eine Weiterbildung, bei welcher zwei in der Längsrichtung benachbarte Linsenreihen wieder über einen vorgenannten Verbindungsabschnitt miteinander verbunden sind.Appropriately it can be provided that the lens body has a plurality of lens rows, in each of which a plurality of adjacent in a transverse direction of the lenses are formed. This allows a geometrically simple structure for the lens body can be realized. Preferred is then a further development in which two lens rows adjacent in the longitudinal direction are again connected to one another via an aforementioned connecting section.

Zweckmäßig können bei einer anderen Ausführungsform mehrere in einer Querrichtung benachbarte LEDs an einer gemeinsamen Platine angeordnet sind. Hierdurch ergibt sich eine vereinfachte Montage. Besonders vorteilhaft ist dann eine Weiterbildung, bei welcher die jeweilige Platine an der jeweiligen, vorstehend genannten Linsenreihe angebracht ist, so dass die Platinen und der Linsenkörper eine vormontierbare Leuchtmitteleinheit bilden, die am Leuchtengehäuse montiert ist. Hierdurch ergibt sich ebenfalls eine vereinfachte Montage, da die Leuchtmitteleinheit als Ganzes am Leuchtengehäuse montiert werden kann.Suitably, in another embodiment, a plurality of adjacent LEDs in a transverse direction are arranged on a common board. This results in a simplified assembly. Particularly advantageous is then a development in which the respective board is attached to the respective, above-mentioned lens row, so that the boards and the lens body form a preassembled lamp unit, which is mounted on the lamp housing. This also results in a simplified installation, since the lighting unit can be mounted as a whole on the lamp housing.

Eine weitere Weiterbildung schlägt vor, dass das Licht der Leuchte entblendet ist. Dadurch wird der geforderten Entblendung der Leuchte Genüge getan.A further development suggests that the light of the lamp is blinding. As a result, the required glare of the lamp is satisfied.

Ferner schlägt eine andere Weiterbildung vor, dass die Ausrichtung der Leuchte veränderbar ist. Dies bedeutet, dass der Ort der Ausleuchtung in gewissen Grenzen veränderbar ist. Somit sind ausgehend von einer fest vorgegebenen Position der Leuchte Veränderungen der Ausleuchtfläche möglich, so dass eine gewisse Variabilität gewährleistet ist. Die Ausrichtung kann dabei derart sein, dass sich der Block mit den LEDs um eine zentrale Mittelachse drehen lässt. Dadurch überstreicht die Abstrahlung des Lichtes bei einer Drehung einen Kegelmantel. Es ist aber auch denkbar, dass die LED-Baugruppe kardanisch geschwenkt werden kann, so dass eine noch größere Variationsvielfalt der Einstellmöglichkeiten realisiert ist.Furthermore, another development proposes that the orientation of the lamp is changeable. This means that the location of the illumination can be changed within certain limits. Thus, starting from a fixed position of the lamp changes in the illumination surface are possible, so that a certain variability is ensured. The orientation can be such that the block with the LEDs can be rotated about a central center axis. As a result, the radiation of the light sweeps over a cone sheath during a rotation. But it is also conceivable that the LED assembly can be gimbaled, so that an even greater variety of variation of the settings is realized.

Bei einer anderen Ausführungsform kann vorgesehen sein, dass die in einer Längsrichtung benachbarten LEDs jeweils in einer LED-Ebene angeordnet sind, die gegenüber der Längsrichtung geneigt ist. Hierdurch kann die Abstrahlrichtung der LEDs gegenüber der durch die Geometrie des Leuchtengehäuses bestimmten Längsrichtung geneigt werden, was die Ausleuchtung des Arbeitsbereichs verbessert. Die LED-Ebenen können dabei parallel zueinander verlaufen. Zusätzlich oder alternativ können die in einer Querrichtung benachbarten LEDs in der selben LED-Ebene angeordnet sein.In another embodiment, it may be provided that the LEDs adjacent in a longitudinal direction are each arranged in an LED plane, which is inclined relative to the longitudinal direction. As a result, the emission direction of the LEDs can be inclined relative to the longitudinal direction determined by the geometry of the luminaire housing, which improves the illumination of the working area. The LED levels can run parallel to each other. Additionally or alternatively, the LEDs adjacent in a transverse direction may be arranged in the same LED plane.

Besonders vorteilhaft ist dabei eine Variante, bei welcher die in der Längsrichtung benachbarten Linsen im Linsenkörper jeweils parallel zu den LED-Ebenen angeordnet und/oder orientiert sind. Hierdurch steht die optische Achse der jeweiligen Linse senkrecht auf der jeweiligen LED-Ebene. Somit berücksichtigt der einstückige Linsenkörper die Neigung der LEDs, was die Montage vereinfacht.In this case, a variant in which the lenses adjacent in the longitudinal direction in the lens body are arranged and / or oriented parallel to the LED planes is particularly advantageous. As a result, the optical axis of the respective lens is perpendicular to the respective LED level. Thus, the one-piece lens body takes into account the inclination of the LEDs, which simplifies assembly.

Ausführungsbeispiele einer erfindungsgemäßen Leuchte zur Ausleuchtung eines Arbeitsplatzes werden nachfolgend anhand der Zeichnungen beschrieben. In diesen zeigt:

Fig. 1
eine perspektivische Ansicht einer Leuchte in Form einer Stehleuchte;
Fig. 2
die Leuchte in Fig. 1 mit einer schematischen Darstellung der Ausleuchtung eines Arbeitsplatzes;
Fig. 3
eine schematische Längsschnittdarstellung durch die Leuchte;
Fig. 4
eine zur Fig. 3 alternative Ausführungsvariante.
Embodiments of a luminaire according to the invention for illuminating a workplace will be described below with reference to the drawings. In these shows:
Fig. 1
a perspective view of a lamp in the form of a floor lamp;
Fig. 2
the light in Fig. 1 with a schematic representation of the illumination of a workplace;
Fig. 3
a schematic longitudinal section through the lamp;
Fig. 4
one to Fig. 3 alternative embodiment.

Bei einer Leuchte 13, wie sie in Fig. 1 dargestellt ist, handelt es sich um eine Stehleuchte. Diese weist ein Leuchtengehäuse 1 auf. Im Beispiel umfasst die Leuchte 13 außerdem einen Leuchtenfuß 14 und einen Leuchtenstab 15, der den Leuchtenfuß 13 mit dem Leuchtengehäuse 1 verbindet. Im Leuchtengehäuse 1 ist ein Feld von LEDs 2 angeordnet. Im Beispiel ist das Feld rechteckig konzipiert und enthält beispielhaft drei mal vier LEDs 2.In a lamp 13, as in Fig. 1 is shown, it is a floor lamp. This has a luminaire housing 1. In the example, the Luminaire 13 also has a lamp base 14 and a lamp rod 15 which connects the lamp base 13 with the lamp housing 1. In the luminaire housing 1, a field of LEDs 2 is arranged. In the example, the field is designed rectangular and contains by way of example three times four LEDs 2.

Wie insbesondere in den Fig. 3 und 4 zu erkennen ist, ist jeder LED 2 eine Linse 3 zugeordnet. Diese dient als Optik für das von der LED 2 abgestrahlte Licht.As in particular in the 3 and 4 can be seen, each LED 2 is associated with a lens 3. This serves as an optic for the light emitted by the LED 2 light.

Grundsätzlich kann jeder LED 2 eine separate Linse 3 zugeordnet sein. Im Beispiel ist allen den LEDs 2 ein gemeinsamer, einstückiger Linsenkörper 5 zugeordnet ist, wobei im Bereich der LEDs 2 jeweils eine Linse 3 in dem Linsenkörper 5 ausgebildet ist. Der Linsenkörper 5 weist zwischen zwei in einer Längsrichtung 6 des Leuchtengehäuses 1 benachbarten Linsen 3 einen Verbindungsabschnitt 7 auf, der die beiden benachbarten Linsen 3 miteinander verbindet. Der jeweilige Verbindungsabschnitt 7 ist dabei - in Richtung der optischen Achse der jeweiligen Linse 3 gesehen - dünn im Vergleich zu einer Linse 3.In principle, each LED 2 can be assigned a separate lens 3. In the example, a common, one-piece lens body 5 is assigned to all the LEDs 2, wherein in the area of the LEDs 2 a respective lens 3 is formed in the lens body 5. The lens body 5 has between two adjacent in a longitudinal direction 6 of the lamp housing 1 lenses 3, a connecting portion 7, which connects the two adjacent lenses 3 together. The respective connecting portion 7 is - seen in the direction of the optical axis of the respective lens 3 - thin compared to a lens. 3

Im Beispiel weist der Linsenkörper 5 mehrere Linsenreihen 8 auf, in denen jeweils mehrere in einer quer zur Längsrichtung verlaufenden Querrichtung 9 des Leuchtengehäuses 1 benachbarte Linsen 3 ausgebildet sind. In den Beispielen sind jeweils vier derartige Linsenreihen vorgesehen, in denen jeweils drei Linsen 3 nebeneinander angeordnet sind. Zweckmäßig verbindet der jeweilige Verbindungsabschnitt 7 je zwei in der Längsrichtung 6 benachbarte Linsenreihen 8 miteinander verbindet.In the example, the lens body 5 has a plurality of lens rows 8, in each of which a plurality of adjacent lenses 3 are formed in a transversely extending to the longitudinal direction transverse direction 9 of the lamp housing 1. In the examples, four such rows of lenses are provided, in each case three lenses 3 are arranged side by side. The respective connecting section 7 expediently connects two adjacent rows of lenses 8 in the longitudinal direction 6.

Im Beispiel sind mehrere in der Querrichtung 9 benachbarte LEDs 2 an einer gemeinsamen Platine 10 angeordnet. Zweckmäßig ist dabei die jeweilige Platine 10 an der jeweiligen Linsenreihe 8 angebracht, derart, dass die Platinen 10 und der Linsenkörper 5 eine vormontierbare Leuchtmitteleinheit 11 bilden, die am Leuchtengehäuse 1 als Ganzes montiert ist.In the example, a plurality of LEDs 2 adjacent in the transverse direction 9 are arranged on a common circuit board 10. Suitably, the respective board 10 is attached to the respective lens row 8, such that the boards 10 and the lens body 5 form a preassemblable lamp unit 11 which is mounted on the lamp housing 1 as a whole.

Vorteilhaft ist das Licht der Leuchte 13 entblendet. Die Ausrichtung der Leuchte 13 ist zweckmäßig veränderbar.Advantageously, the light of the lamp 13 is blinding. The orientation of the lamp 13 is suitably changeable.

Im gezeigten Beispiel sind die in der Längsrichtung 6 benachbarten LEDs 2 jeweils in einer LED-Ebene 12 angeordnet, die gegenüber der Längsrichtung 6 geneigt ist. Besonders zweckmäßig sind nun die in der Längsrichtung 6 benachbarten Linsen 3 im Linsenkörper 5 jeweils parallel zu den LED-Ebenen 12 angeordnet und/oder orientiert, derart, dass ihre jeweilige optische Achse senkrecht zu besagter LED-Ebene 12 verläuft. In den Beispielen verlaufen die LED-Ebenen 12 parallel zueinander. Außerdem sind die in der Querrichtung 9 benachbarten LEDs 2 in der selben LED-Ebene 12 angeordnet.In the example shown, the LEDs 2 adjacent in the longitudinal direction 6 are each arranged in an LED plane 12, which is inclined with respect to the longitudinal direction 6. Particularly expediently, the lenses 3 adjacent to one another in the longitudinal direction 6 in the lens body 5 are each arranged and / or oriented parallel to the LED planes 12 such that their respective optical axis runs perpendicular to said LED plane 12. In the examples, the LED levels 12 are parallel to each other. In addition, the LEDs 2 adjacent in the transverse direction 9 are arranged in the same LED plane 12.

Die Funktionsweise ist wie folgt:

  • Ziel ist es, mit dieser Leuchte eine normkonforme Ausleuchtung eines Arbeitsplatzes in der Größe von beispielsweise 1,8 m auf 1,5 m zu ermöglichen, und
  • zwar mit einer minimalen elektrischen Energie unter 30 W. Die auszuleuchtende Fläche 4 eines Arbeitsplatzes ist in Fig. 2 angedeutet.
The operation is as follows:
  • The aim is to enable with this lamp a standard-compliant illumination of a workplace in the size of, for example, 1.8 m to 1.5 m, and
  • although with a minimum electrical energy below 30 W. The surface 4 of a workplace to be illuminated is in Fig. 2 indicated.

Das Grundprinzip besteht darin, dass die Linsen 3 als sogenannte Freiformoptiken ausgebildet sind. Dies bedeutet, dass die Linsen 3 das von ihren LEDs 2 abgestrahlte Licht exakt auf eine definierte Fläche 4, nämlich die Fläche des Arbeitsplatzes fokussieren. Eine darüber hinaus vorhandene Abstrahlung außerhalb des durch die Linsen 3 vorgegebenen Abstrahlwinkels ist nicht gegeben. Letztendlich bedeutet dies, dass der Arbeitsplatz exakt mit einer scharf begrenzten Beleuchtungskante ausgeleuchtet ist.The basic principle is that the lenses 3 are designed as so-called free-form optics. This means that the lenses 3 focus the light emitted by their LEDs 2 exactly on a defined surface 4, namely the surface of the workplace. An existing radiation beyond the predetermined by the lenses 3 radiation angle is not given. Ultimately, this means that the workplace is illuminated exactly with a sharply delimited lighting edge.

Claims (14)

1. Leuchte
mit einem Leuchtengehäuse (1) sowie
mit einem Feld von in dem Leuchtengehäuse (1) angeordneten LEDs (2), wobei den LEDs (2) jeweils eine Linse (3) zugeordnet ist,
dadurch gekennzeichnet ,
dass die Linsen (3) der LEDs (2) derart ausgebildet sind, dass das von den LEDs (2) abgestrahlte Licht eine scharf begrenzte Fläche (4) ausleuchtet. 1st light
with a luminaire housing (1) as well
with a field of LEDs (2) arranged in the luminaire housing (1), wherein the LEDs (2) are each assigned a lens (3),
characterized ,
that the lenses (3) of the LEDs (2) are designed such that the from the LEDs (2) emitted light illuminates a sharply limited area (4). 2. Leuchte nach Anspruch 1,
dadurch gekennzeichnet,
dass jeder LED (2) eine separate Linse (3) zugeordnet ist. 2. Luminaire according to claim 1,
characterized,
that each LED (2) is associated with a separate lens (3). 3. Leuchte nach Anspruch 1,
dadurch gekennzeichnet,
dass den LEDs (2) ein gemeinsamer, einstückiger Linsenkörper (5) zugeordnet ist, wobei im Bereich der LEDs (2) jeweils eine Linse (3) in dem Linsenkörper (5) ausgebildet ist. 3. Luminaire according to claim 1,
characterized,
in that a common, one-piece lens body (5) is assigned to the LEDs (2), wherein in each case a lens (3) is formed in the lens body (5) in the region of the LEDs (2). 4. Leuchte nach Anspruch 3,
dadurch gekennzeichnet,
dass der Linsenkörper (5) zwischen zwei in einer Längsrichtung (6) benachbarten Linsen (3) einen Verbindungsabschnitt (7) aufweist, der die beiden benachbarten Linsen (3) miteinander verbindet. 4. Luminaire according to claim 3,
characterized,
in that the lens body (5) has a connecting section (7) between two lenses (3) which are adjacent in a longitudinal direction (6) and which connects the two adjacent lenses (3) to one another. 5. Leuchte nach Anspruch 4,
dadurch gekennzeichnet,
dass der jeweilige Verbindungsabschnitt (7) dünn ist im Vergleich zu einer Linse (3). 5. Lamp according to claim 4,
characterized,
that the respective connecting portion (7) is thin compared to a lens (3). 6. Leuchte nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet,
dass der Linsenkörper (5) mehrere Linsenreihen (8) aufweist, in denen jeweils mehrere in einer Querrichtung (9) benachbarte Linsen (3) ausgebildet sind. 6. Luminaire according to one of claims 3 to 5,
characterized,
in that the lens body (5) has a plurality of rows of lenses (8) in each of which a plurality of lenses (3) adjacent to one another in a transverse direction (9) are formed. 7. Leuchte nach den Ansprüchen 4 und 6,
dadurch gekennzeichnet,
dass der jeweilige Verbindungsabschnitt (7) zwei in der Längsrichtung (6) benachbarte Linsenreihen (8) miteinander verbindet. 7. Luminaire according to claims 4 and 6,
characterized,
that the respective connecting section (7) connects two in the longitudinal direction (6) adjacent lens rows (8) with each other. 8. Leuchte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass mehrere in einer Querrichtung (9) benachbarte LEDs (2) an einer gemeinsamen Platine (10) angeordnet sind. 8. Luminaire according to one of the preceding claims,
characterized,
a plurality of LEDs (2) adjoining in a transverse direction (9) are arranged on a common circuit board (10). 9. Leuchte nach den Ansprüchen 6 und 8,
dadurch gekennzeichnet,
dass die jeweilige Platine (10) an der jeweiligen Linsenreihe (8) angebracht ist, so dass die Platinen (10) und der Linsenkörper (5) eine vormontierbare Leuchtmitteleinheit (11) bilden, die am Leuchtengehäuse (1) montiert ist. 9. Luminaire according to claims 6 and 8,
characterized,
in that the respective circuit board (10) is attached to the respective row of lenses (8), so that the circuit boards (10) and the lens body (5) form a preassemblable lamp unit (11) which is mounted on the lamp housing (1). 10. Leuchte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass das Licht der Leuchte (13) entblendet ist. 10. Luminaire according to one of the preceding claims,
characterized,
that the light of the lamp (13) is glare-free. 11. Leuchte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Ausrichtung der Leuchte (13) veränderbar ist. 11. Luminaire according to one of the preceding claims,
characterized,
that the orientation of the lamp (13) is variable. 13. Leuchte nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die in einer Längsrichtung (6) benachbarten LEDs (2) jeweils in einer LED-Ebene (12) angeordnet sind, die gegenüber der Längsrichtung (6) geneigt ist. 13. Luminaire according to one of the preceding claims,
characterized,
in that the LEDs (2) adjacent in a longitudinal direction (6) are each arranged in an LED plane (12) which is inclined with respect to the longitudinal direction (6). 14. Leuchte nach Anspruch 3 und 13,
dadurch gekennzeichnet,
dass die in der Längsrichtung (6) benachbarten Linsen (3) im Linsenkörper (5) jeweils parallel zu den LED-Ebenen (12) angeordnet und/oder orientiert sind. 14. Luminaire according to claim 3 and 13,
characterized,
that the in the longitudinal direction (6) adjacent lenses (3) disposed in the lens body (5) in parallel to the LED layers (12) and / or oriented. 15. Leuchte nach Anspruch 13 oder 14,
dadurch gekennzeichnet,
dass die LED-Ebenen (12) parallel zueinander verlaufen, und/oder dass die in einer Querrichtung (9) benachbarten LEDs (2) in der selben LED-Ebene (12) angeordnet sind. 15. Luminaire according to claim 13 or 14,
characterized,
in that the LED planes (12) run parallel to one another, and / or that the LEDs (2) adjacent in a transverse direction (9) are arranged in the same LED plane (12).
EP11155286.5A 2010-03-09 2011-02-22 Lamp Not-in-force EP2365243B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11155286T PL2365243T3 (en) 2010-03-09 2011-02-22 Lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010003313U DE202010003313U1 (en) 2010-03-09 2010-03-09 lamp

Publications (2)

Publication Number Publication Date
EP2365243A1 true EP2365243A1 (en) 2011-09-14
EP2365243B1 EP2365243B1 (en) 2014-10-29

Family

ID=44002271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155286.5A Not-in-force EP2365243B1 (en) 2010-03-09 2011-02-22 Lamp

Country Status (3)

Country Link
EP (1) EP2365243B1 (en)
DE (1) DE202010003313U1 (en)
PL (1) PL2365243T3 (en)

Cited By (2)

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WO2013056985A1 (en) 2011-10-17 2013-04-25 Heper Moonlight Europe Gmbh Lighting means
EP2698577A3 (en) * 2012-08-13 2014-05-14 Zumtobel Lighting GmbH Standard lamp for lighting a workplace

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Publication number Priority date Publication date Assignee Title
DE202016107411U1 (en) * 2016-12-28 2018-04-03 Zumtobel Lighting Gmbh Refractive optics with free-form body

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WO2008021082A2 (en) * 2006-08-16 2008-02-21 Rpc Photonics, Inc. Illumination devices
US20080062689A1 (en) * 2006-09-12 2008-03-13 Russell George Villard Led lighting fixture
US20080084693A1 (en) * 2006-10-10 2008-04-10 Yanchers Corporation Lighting system
WO2008125772A1 (en) * 2007-03-08 2008-10-23 Lyracom Led lighting device
EP2058584A1 (en) * 2007-11-12 2009-05-13 Industrias Derivadas del Aluminio S.L. Lighting fixtures with LED lights for illumination of outside public areas
WO2009104067A1 (en) * 2008-02-18 2009-08-27 Led Go Srl Street lighting device with leds, and method to make the same

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DE102004051382A1 (en) * 2004-10-21 2006-04-27 Oec Ag Microlens array
DE102008006229B4 (en) * 2008-01-25 2013-08-29 We-Ef Leuchten Gmbh & Co. Kg Street lighting device

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WO2008021082A2 (en) * 2006-08-16 2008-02-21 Rpc Photonics, Inc. Illumination devices
US20080062689A1 (en) * 2006-09-12 2008-03-13 Russell George Villard Led lighting fixture
US20080084693A1 (en) * 2006-10-10 2008-04-10 Yanchers Corporation Lighting system
WO2008125772A1 (en) * 2007-03-08 2008-10-23 Lyracom Led lighting device
EP2058584A1 (en) * 2007-11-12 2009-05-13 Industrias Derivadas del Aluminio S.L. Lighting fixtures with LED lights for illumination of outside public areas
WO2009104067A1 (en) * 2008-02-18 2009-08-27 Led Go Srl Street lighting device with leds, and method to make the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013056985A1 (en) 2011-10-17 2013-04-25 Heper Moonlight Europe Gmbh Lighting means
EP2698577A3 (en) * 2012-08-13 2014-05-14 Zumtobel Lighting GmbH Standard lamp for lighting a workplace

Also Published As

Publication number Publication date
DE202010003313U1 (en) 2011-08-26
EP2365243B1 (en) 2014-10-29
PL2365243T3 (en) 2015-06-30

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