EP2989378A1 - Lampe à led à distributions lumineuses réglables - Google Patents

Lampe à led à distributions lumineuses réglables

Info

Publication number
EP2989378A1
EP2989378A1 EP14720566.0A EP14720566A EP2989378A1 EP 2989378 A1 EP2989378 A1 EP 2989378A1 EP 14720566 A EP14720566 A EP 14720566A EP 2989378 A1 EP2989378 A1 EP 2989378A1
Authority
EP
European Patent Office
Prior art keywords
light
emitting
directing element
led
directing
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
EP14720566.0A
Other languages
German (de)
English (en)
Other versions
EP2989378B1 (fr
Inventor
Patrik Gassner
Bert Junghans
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2989378A1 publication Critical patent/EP2989378A1/fr
Application granted granted Critical
Publication of EP2989378B1 publication Critical patent/EP2989378B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/046—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures having multiple lighting devices, e.g. connected to a common ceiling base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire with LED light sources (LED: light-emitting diode) and light-guiding elements for directing the direction of the light.
  • LED light-emitting diode
  • a workplace lamp is known from DE 33 01 277 C2.
  • This lamp is an elongated lamp with two light output arrangements; the lamp is intended to be placed over a worktable so that it obliquely illuminates a working surface on the worktable obliquely from the left with the first light-emitting arrangement, and obliquely from above with the second light-emitting arrangement.
  • General lighting such as the lighting of a corridor or the like, typically a symmetrical light output desired.
  • the invention has for its object to provide a light that is particularly suitable both for a workplace-related lighting, as well as for a
  • a luminaire which has at least one first LED light source for emitting a first light, at least one first light-directing element for directing the direction of the first light, at least one second LED light source for emitting a second light and at least one second light-directing element for influencing the direction of the second light.
  • the at least one first light-guiding element is designed such that it causes an asymmetrical light output of the first light.
  • the at least one second light-guiding element is configured identically to the at least one first light-guiding element and is arranged relative to the at least one first light-guiding element in a position rotated by 180 °.
  • the light can be used to achieve an asymmetrical light output, which is particularly suitable as workstation-related lighting;
  • a symmetrical light output can be achieved, ie a light output which is particularly suitable as general lighting.
  • switching on the at least one second LED light source and switching off the at least one first light source it is possible to effect a further asymmetrical light output, which differs in its main emission direction from the first mentioned
  • asymmetric light output is different.
  • the at least one first light-directing element preferably comprises a lens or consists of a lens.
  • the at least one first light-directing element and the at least one second light-directing element are designed and arranged in such a way that the first light and the second light can be emitted together by the luminaire in the form of a Batwing distribution.
  • the lamp further comprises a control unit for controlling the at least one first LED light source and the at least one second LED light source, wherein the control unit is designed such that the first light is radiated from the lamp in a first switching state of the control unit and the second light is not radiated or emitted with an intensity which is lower than the intensity of the first light and in a second switching state of the control unit, the first light is emitted with the same intensity as the second light.
  • the control unit is further designed such that of the
  • the luminaire is particularly suitable for illuminating a working area when the at least one first LED light source, the at least one first light-directing element, the at least one second LED light source and the at least one second LED light source
  • Light guide element form parts of a first light-emitting arrangement of the lamp, wherein the first light-emitting arrangement is configured to illuminate a work area from one side obliquely from above.
  • the first light emission arrangement preferably comprises a plurality of first LED light sources, a plurality of first light guide elements, a plurality of second LED light sources and a plurality of second light guide elements.
  • one of the first LED light sources and one of the first light-directing elements and one of the second LED light sources and one of the second light-directing elements are preferably arranged directly adjacent to one another and form a light-emitting unit of the first light-emitting arrangement, the light-emitting units thus formed are arranged like a field. hereby a particularly uniform light output of the lamp is possible at different switching states of the control unit.
  • the luminaire also has a second light-emitting arrangement, which is designed to illuminate the working area from a side opposite the first-mentioned side from obliquely upwards.
  • the second light-emitting arrangement is preferably analogous, in particular structurally identical to the first light-emitting arrangement.
  • the luminaire is particularly suitable for illuminating a working area when it is generally oblong, so that it has a longitudinal axis, the design being such that in an orientation provided for operating the luminaire, the longitudinal axis is oriented horizontally.
  • the luminaire is particularly preferably a pendant luminaire or a floor lamp.
  • Fig. 1 is a sketch of an embodiment of an inventive
  • Fig. 2 is a sketch in the manner of a view from below of the first
  • FIG. 3 shows a further sketch for the design of the first light-emitting arrangement, wherein a first light-directing element and a second light-directing element are indicated in perspective
  • Fig. 4 is a sketch for the delivery of the first light
  • Fig. 6 is a corresponding sketch for the delivery of the first and the second light.
  • Fig. 1 shows a sketch of an embodiment of a lamp according to the invention.
  • the lamp is designed in the form of an office lamp and intended to illuminate a work area 9.
  • the luminaire may be, for example, a pendant luminaire or a floor lamp.
  • Corresponding suspension elements or a corresponding stator are not shown in FIG. 1.
  • the work area 9 may be a horizontal work surface defined by a surface area of a desk.
  • the lamp is designed as a whole elongated, so that it extends along a longitudinal axis L.
  • it is intended or configured to be horizontally oriented in an operational state, so that therefore runs the longitudinal axis L horizontally aligned during operation of the lamp.
  • the luminaire preferably comprises a first light-emitting arrangement 10 and preferably also a second light-emitting arrangement 11, wherein the first
  • Lichtabgabe- arrangement 10 is adapted to illuminate the work area 9 from one side obliquely from above, with reference to FIG. 1 from obliquely upper left.
  • the second light-emitting arrangement 11 is configured to illuminate the working area 9 from a side opposite the first-mentioned side from obliquely above, in this case from obliquely right above.
  • the lamp is designed so that between the first light emitting device 10 and the second light emitting device 11, a distance ⁇ is formed, which is preferably greater than 30 cm, in particular greater than 50 cm, preferably between the two
  • the first light-emitting arrangement 10 has a substantially horizontal light-emitting surface facing downwards.
  • 2 shows a schematic view from below of the first light-emitting arrangement 10 or on its Lichtabgabefikiee and
  • Fig. 3 shows a sketch for the construction of the first light-emitting arrangement 10 in perspective view obliquely from above, with only certain parts shown or are not indicated, not the entire first light-emitting arrangement 10th
  • the luminaire has a first LED light source 1 for emitting a first light LI, and a first light-directing element 2 for directing the direction of the first light LI. Furthermore, the lamp has a second LED light source 3 for emitting a second light L2, and a second light-guiding element 4 for
  • Light-guiding element 4 Components of the first light-emitting arrangement 10 of the luminaire.
  • the first LED light source 1 may have a light emitting surface which is formed by an LED or by a plurality of LEDs, wherein this Lichtabstrahlfikiee the first LED light source 1 is preferably designed oriented horizontally.
  • the first LED light source 1 has exactly or only one LED as a light-emitting element. The same applies to the second LED light source 3.
  • the first light-guiding element 2 is designed such that it is asymmetric
  • Light output of the first light LI causes, in particular with respect to the vertical asymmetric light output.
  • the first light LI is emitted from the first light emitting device 10 due to the directional influence by the first light-guiding element 3 mainly in a direction including with the vertical fine angle a, for example, greater than 10 ° and smaller than 80 °, preferably greater than 20 ° and less than 70 °, more preferably greater than 30 ° and less than 60 °.
  • the second fine angle a for example, greater than 10 ° and smaller than 80 °, preferably greater than 20 ° and less than 70 °, more preferably greater than 30 ° and less than 60 °.
  • the at least one second light-directing element 4 is of identical design to the at least one first light-directing element 2 and in this case relative to the at least one first Light guide 2 arranged in a rotated position by 180 °. Therefore, the second light L2 is emitted mainly in a different direction than the first light LI.
  • the second LED light source 3 and the second light-directing element 4 are designed mirror-symmetrically to the first LED light source 1 and the first light-directing element 2, wherein a corresponding mirror symmetry plane extends vertically.
  • the first LED light source 1, the first light-guiding element 2, the second LED light source 3 and the second light-guiding element 4 are designed to be immovable relative to one another. This is manufacturing technology advantageous. Farther
  • the four mentioned parts form a light-emitting unit 5 of the first light-emitting arrangement 10.
  • the first light-emitting arrangement 11 comprises a plurality of first LED light sources 1, ⁇ for emitting the first light LI, a plurality of first light-guiding elements 2, 2 ' for influencing their direction, a plurality of second LED light sources 3, 3' for emitting the second light L2, and a plurality of second light-directing elements 4, 4 'for influencing their direction.
  • each one of the first LED light sources 1 and one of the first light-guiding elements 2 and one of the second LED light sources 3 and one of the second light-guiding elements 4 form a light-emitting unit 5, 5 'of the first light-emitting arrangement 10, so that the latter altogether a plurality Light emitting units 5, 5 'includes.
  • the light-emitting units 5, 5 'thus formed are preferably arranged like a field.
  • the design is preferably such that the light-emitting units 5, 5 'are shaped and arranged relative to one another in such a way that they intermesh. This is a particularly good
  • each light-emitting unit 5, 5 ' is arranged offset relative to a further light-emitting unit 5, 5' directly adjacent to the relevant light-emitting unit 5, 5 '.
  • This design is advantageous because it makes it possible to achieve the impression of as even a surface light output as possible.
  • other designs in this regard possible for example in the form of a corresponding, but in one
  • the at least one first LED light source 1 has exactly or only one LED as a light-emitting element and analogous applies to the at least one second LED light source 3, the light-emitting unit 5 or can be
  • Light emitting units 5, 5 make particularly small-scale and in addition can be effected in this way a particularly uniform light output.
  • the second light-emitting arrangement 11 is designed analogously or structurally identical to the first light-emitting arrangement 10.
  • the at least one first light-guiding element 2 comprises a lens or consists of a lens.
  • a light-emitting unit 5 is outlined and the corresponding light output indicated by two arrows.
  • an associated light distribution curve L VK (thin curve) is sketched in a vertical plane running through the longitudinal axis L.
  • the at least one first light-directing element 2 and the at least one second light-directing element 4 are preferably designed and arranged such that the first light LI and the second light L2 together form the luminaire or the first light output arrangement 10 can be delivered in the form of a Batwing distribution.
  • the lamp also has a (not shown in the figures) control unit for the electronic control of the at least one first LED light source 1 and the at least one second LED light source 3, wherein the control unit is designed such that of the lamp in a first
  • the first light LI is emitted and the second light L2 is not radiated or emitted with an intensity lower is the intensity of the first light and in a second switching state of the
  • the first light LI is emitted with the same intensity as the second light L2.
  • the light emission situation described above with reference to FIG. 6 thus corresponds to the second switching state.
  • the first switching state is indicated in an analogous manner sketched, in which case the second light L2 is not emitted.
  • Fig. 5 shows, also in an analogous manner another possible, corresponding to the first switching state analog third switching state of the control unit in which the second light L2 is emitted and the first light LI is not radiated or emitted with an intensity which is lower than the intensity of the second light L2.
  • control unit is also designed such that in the first switching state, the first light LI is emitted with a higher intensity than in the second switching state. In this way, it can be achieved that a uniform illuminance level is maintained or guaranteed in both of the mentioned switching states. The same applies with reference to the third switching state in comparison to the second switching state.
  • the second switching state thus allows with respect to a, normal to the
  • Longitudinal axis L oriented vertical plane a symmetrical light output of the lamp, especially in the form of a Batwing distribution, which is thus particularly suitable for general lighting or a "planar" lighting
  • Switching state or, if appropriate, analogous to the third switching state, in contrast, makes it possible with reference to said vertical plane to produce an asymmetrical light output of the luminaire, which is thus particularly suitable for workplace-related lighting.
  • control unit can also be advantageously designed for a correspondingly analogous control of the second light-emitting device 11.
  • the working area 9 can be illuminated, for example, by the first light-emitting arrangement 10 with the first light LI from obliquely upper left and by the second light-emitting arrangement 11 with the second light L2 'formed analogously. from diagonally right above.
  • the first light output arrangement 10 can advantageously be set with a corresponding symmetrical light output, ie the first light LI and the second light L2 become; This makes it possible to achieve particularly suitable lighting for the aisle.
  • the second light L2 need not necessarily be completely switched off. It is provided that the second light L2 is activated with a lower intensity compared to the first light LI. This makes it possible to improve the visual impression. Analogously applies again, if appropriate for the third switching state.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une lampe qui comporte au moins une première source lumineuse à LED (1, 1') destinée à émettre une première lumière, au moins un premier guide d'onde (2, 2') destiné à influer sur la direction de la première lumière, au moins une seconde source lumineuse à LED (3 , 3') destinée à émettre une seconde lumière, et au moins une second guide d'onde (4, 4') destiné à influer sur la direction de la seconde lumière. L'au moins un premier guide d'onde (2, 2') est configuré de façon à générer une émission lumineuse asymétrique pour la première lumière. L'au moins un second guide d'onde (4, 4') est structurellement identique à l'au moins un premier guide d'onde (2, 2') et est de ce fait disposé dans une position tournée de 180° par rapport l'au moins un premier guide d'onde (2, 2'). Si l'au moins une première source lumineuse à LED (1, 1') est allumée et l'au moins une seconde source lumineuse à LED (3, 3') est éteinte, on obtient une lampe dont l'émission lumineuse est asymétrique, ce qui est particulièrement approprié à l'éclairage d'un lieu de travail. Si lesdites sources lumineuses à LED (1, 1', 3, 3') sont toutes allumées, on obtient alors une émission lumineuse symétrique, donc une émission lumineuse idéale pour un éclairage général.
EP14720566.0A 2013-04-26 2014-04-24 Lampe à led à distributions lumineuses réglables Active EP2989378B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013207663.0A DE102013207663A1 (de) 2013-04-26 2013-04-26 LED-Leuchte mit unterschiedlich einstellbaren Lichtverteilungen
PCT/EP2014/058365 WO2014174024A1 (fr) 2013-04-26 2014-04-24 Lampe à led à distributions lumineuses réglables

Publications (2)

Publication Number Publication Date
EP2989378A1 true EP2989378A1 (fr) 2016-03-02
EP2989378B1 EP2989378B1 (fr) 2018-12-26

Family

ID=50628802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14720566.0A Active EP2989378B1 (fr) 2013-04-26 2014-04-24 Lampe à led à distributions lumineuses réglables

Country Status (5)

Country Link
US (1) US9752752B2 (fr)
EP (1) EP2989378B1 (fr)
CN (1) CN105143755B (fr)
DE (1) DE102013207663A1 (fr)
WO (1) WO2014174024A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2724773A1 (es) * 2018-03-08 2019-09-16 Saprem Electronica S L Dispositivo y luminaria para iluminar las escaleras y otros espacios de los aerogeneradores.
US10772702B2 (en) * 2018-03-13 2020-09-15 American Sterilizer Company Surgical lighting apparatus including surgical lighthead with moveable lighting modules

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376784B (de) 1982-01-18 1984-12-27 Zumtobel Ag Arbeitsplatzleuchte
AT401587B (de) * 1993-12-30 1996-10-25 Rosenitsch Harald Ing Anzeigevorrichtung mit einem rasterkörper
WO2005071307A1 (fr) * 2004-01-13 2005-08-04 Jianping Cai Lampe de table portable
JP2006032049A (ja) * 2004-07-14 2006-02-02 Nec Lighting Ltd 照明器具および器具本体、ランプカバー
US20060050528A1 (en) * 2004-09-08 2006-03-09 Lyons Christopher L Sign lighting system
ITVI20070031A1 (it) * 2007-02-01 2008-08-02 Beghelli Spa Apparecchio di illuminazione ad alte prestazioni ed ottimale distribuzione della luce installabile a soffitto e a parete
EP2039985B1 (fr) * 2007-09-20 2017-10-25 Siteco Beleuchtungstechnik GmbH Dispositif d'éclairage DEL doté d'une répartition asymétrique de la lumière, en particulier pour éclairages publics
CN101220928B (zh) 2008-01-22 2010-06-09 史杰 防眩光的led照明装置
CN101446404A (zh) * 2008-12-29 2009-06-03 浙江晶日照明科技有限公司 一种led路灯及led路灯的照射光线调整方法
WO2010119378A1 (fr) 2009-04-16 2010-10-21 Koninklijke Philips Electronics N.V. Système d'éclairage, espace comportant un système d'éclairage, et procédé de réalisation d'un profil d'éclairage au moyen d'un tel système d'éclairage
DE202009016793U1 (de) 2009-12-11 2011-04-21 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe
DE202009017096U1 (de) * 2009-12-18 2010-03-18 Technische Universität Darmstadt Straßenleuchte
DE102010014209A1 (de) * 2010-04-08 2011-10-13 Siteco Beleuchtungstechnik Gmbh Leuchte mit optischer Platte
DE102011012129A1 (de) * 2011-02-23 2012-08-23 Bartenbach Holding Gmbh Beleuchtungsvorrichtung
DE102011079404A1 (de) * 2011-07-19 2013-01-24 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe
DE102011080313A1 (de) * 2011-08-03 2013-02-07 Osram Ag Rasterleuchte mit mehreren halbleiterstrahlern
ITMI20130509A1 (it) * 2013-04-04 2014-10-05 Bevilacqua Carlotta Francesca Isolina Maria De Sistema di illuminazione avente elementi ottici modulari asimmetrici

Also Published As

Publication number Publication date
WO2014174024A1 (fr) 2014-10-30
US9752752B2 (en) 2017-09-05
US20160061411A1 (en) 2016-03-03
EP2989378B1 (fr) 2018-12-26
DE102013207663A1 (de) 2014-10-30
CN105143755A (zh) 2015-12-09
CN105143755B (zh) 2019-03-19

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