EP2993394B1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
EP2993394B1
EP2993394B1 EP15178001.2A EP15178001A EP2993394B1 EP 2993394 B1 EP2993394 B1 EP 2993394B1 EP 15178001 A EP15178001 A EP 15178001A EP 2993394 B1 EP2993394 B1 EP 2993394B1
Authority
EP
European Patent Office
Prior art keywords
luminaire
lamp
light
reflector
lighting
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.)
Active
Application number
EP15178001.2A
Other languages
German (de)
English (en)
Other versions
EP2993394A1 (fr
Inventor
Thibaut Escourrou
Wolfgang Sojer
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 EP2993394A1 publication Critical patent/EP2993394A1/fr
Application granted granted Critical
Publication of EP2993394B1 publication Critical patent/EP2993394B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21Y2101/00—Point-like light sources
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
    • F21Y2113/00—Combination of light sources
    • 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 present invention relates to a luminaire according to the preamble of claim 1, which is designed to emit light in such a way that the so-called light distribution curve has two wings inclined relative to the vertical or longitudinal median plane of the luminaire, via which the light is primarily emitted.
  • the invention relates to a luminaire, which is used for example in shops or shops and is intended to illuminate shelves.
  • a typical application of generic lights are, for example, supermarkets, where the products or goods are arranged in longer, mutually parallel rows of shelves.
  • luminaires are usually used, which are arranged centrally above between two adjacent rows of shelves, for example on the ceiling of the room or also suspended therefrom and are designed such that they obliquely downward their light in two directions facing away from each other, So in each case in the direction of the obliquely located below rows of shelves.
  • the total resulting light emission characteristic of the lamp corresponds to a so-called Batwing distribution, which is characterized by two with respect to the vertical obliquely aligned wing-like maxima in the light distribution curve.
  • the light of the lamp is therefore not primarily down vertically but instead each slightly laterally down in two opposite directions.
  • a disadvantage of these known solutions is that an adaptation of the light distribution curve to actual conditions on site usually is difficult. Whether the light emitted by the light actually illuminates the shelves below obliquely depends in particular on how well the light distribution curve is suitable for the arrangement of the lamp with respect to the rows of shelves. That is, the Lichtabstrahl characterizing should on the one hand be adapted to the distance between the rows of shelves and on the other hand, the distance between light and rows of shelves. Since in the case of lenses, a change in the light emission characteristic is usually difficult to achieve, this means that the light for the specific application must always be positioned at a suitable height with respect to the rows of shelves, which may be feasible only with great effort.
  • EP 2 650 595 A1 describes a lamp with a lamp housing for wall and / or ceiling mounting, a linear lamp having a plurality of LEDs, a holding device for fixing the respective lamp to the lamp housing, which is arranged between the two longitudinal ends of the respective lamp, and a power electronics for power supply Lamp which is arranged on or in the luminaire housing outside of the respective lamp and which is electrically connected to the housing-side primary electrical connections, via which the lamp is electrically connected to a power grid.
  • a generic light is from the EP1273849A2 known.
  • the present invention has for its object to provide a luminaire of the type described above, in which the Lichtabstrahl characterizing can be adjusted or modified in a relatively simple manner.
  • the luminaire has two illumination units, which are arranged side by side with respect to a longitudinal center plane of the luminaire and are designed such that they effect a light output facing away from one another in a plane perpendicular to the longitudinal axis of the luminaire.
  • Each lighting unit is therefore responsible for the delivery of a light cone of the total desired Batwing distribution, which is discharged laterally down, for example, on a row of shelves.
  • the invention provides that both illumination units are adjustable about a respective pivot axis extending parallel to the longitudinal axis of the lamp.
  • a luminaire with two lighting units wherein the lighting units are arranged side by side with respect to a longitudinal axis of the lamp and are formed such that they effect a mutually remote light output in a plane perpendicular to the longitudinal axis of the lamp and according to the invention the two lighting units to a respective axis of rotation extending parallel to the longitudinal axis are adjustable.
  • Each lighting unit has in this case lighting means and an associated reflector, wherein the arrangement of the lighting means and the design of the reflector is such that substantially only reflected by the reflector light beams can leave the light.
  • the reflector is used in this case as a so-called back reflector, whereby the possibilities to influence the light output can be improved. Another advantage of this type of light output is that the possibility of glare control is optimized.
  • the lamps of the luminaire according to the invention are LEDs which are arranged on one or more circuit boards. Again, for reasons of glare, the boards are arranged so that they are inclined in each possible position of the lighting unit. This prevents a direct view of the LEDs even when viewed from below.
  • the orientation of the respective maximum of the Batwing light distribution curve can be adjusted.
  • it is possible to make an individual adjustment for both maxima of the light distribution curve that is to say so
  • the possibility of adjusting the lighting units is limited to an angular range of about 10 °.
  • each lighting unit is associated with an individual heat sink, which is then pivoted together with the lighting unit and in particular is thermally coupled to the LEDs.
  • a particularly efficient heat coupling can be achieved in that the LED boards or a support element for the LED boards is designed angled and perpendicular to the support surface for the LEDs aligned leg of the support member or the board in a running in the longitudinal direction of the heat sink recess intervenes. That is, the heat sink also serves to hold the LEDs and heat dissipation is optimized.
  • the reflector of a lighting unit is preferably executed at least partially curved in a plane perpendicular to the longitudinal axis of the lamp in order to achieve the desired light distribution.
  • a broad distribution of light is desired, so that here the reflector is designed unchanged, at least over a certain longitudinal section.
  • the reflector then preferably has inclined surface sections at its end regions.
  • the lighting units are preferably arranged inside half of a housing whose end faces can be made approximately X-shaped. As a result, the lamp has a particularly appealing and interesting appearance, in spite of which optimal light emission properties are present.
  • the luminaire according to the invention serves primarily to be arranged, for example, in shops or shops above shelves and to illuminate the shelves which are located obliquely below the luminaire.
  • the lamp could also be used for other purposes, for example, to illuminate the side walls of an elongated passage or the like.
  • the luminaire 100 is in this case designed to be relatively compact, but extends in spite of all along an in FIG. 1 shown longitudinal axis I.
  • end walls 115 are arranged, which - in particular the representations of Figures 1 and 2 can be removed - have approximately an X-shape. This gives the lamp a special characteristic appearance, which is also emphasized by the manner described below in more detail of the light output.
  • the luminaire 100 will be arranged centrally above two rows of shelves extending parallel to one another and will then illuminate these two rows of shelves. That is, as in FIG. 2 indicated with the help of the lamp 100, a light output can be achieved, which in particular by two laterally obliquely downwardly directed radiation maxima A and B (see FIG. 2 ). This corresponds to a so-called batwing light distribution curve, in which therefore the light is not emitted primarily vertically downwards but instead in two beams facing away from each other laterally downwards.
  • the lamp 100 is equipped with special lighting units, which will be described in more detail below.
  • illumination units which are generally provided with the reference numeral 10, are particularly clearly recognizable in the sectional representation according to FIG. 3 , It is initially apparent that both illumination units 10 are arranged side by side back to back with respect to the longitudinal axis I of the lamp 100 and the longitudinal center plane and are designed such that they each generate one of the downwardly laterally directed radiation beams A and B. Both lighting units 10 are made identical, whereby the structure of the lamp 100 is simplified as a whole.
  • each of the lighting units 10 As a lighting means for each of the lighting units 10 while LEDs 15 are used, which are each arranged on one or more boards 16.
  • the light emitted by the LEDs 15 light is not emitted directly in the desired direction, but initially primarily emitted in an opposite direction, ie to the longitudinal center plane of the lamp 100 out. Only after the light beams have been reflected by a rear reflector 20, they can leave the lighting unit 10 and the lamp housing 110, wherein - as in FIG. 3 can be seen - the arrangement of the LED boards 16 and the design of the rear reflectors 20 is such that the light output is primarily obliquely down.
  • each lighting unit 10 is a heat sink 25, with the help of which the heat generated by the LEDs 15 during operation of the lamp 100 heat to be dissipated.
  • a heat sink 25 For this purpose, an efficient thermal coupling between LED board 16 and heat sink 25 is advantageous, which according to a particularly preferred embodiment as in the enlarged view of FIG. 6 is realized shown.
  • the LED board 16 is arranged on an angled support member 17, which has a first web 17 1 , on which the circuit board 16 rests.
  • an approximately perpendicular to the first web 17 1 aligned second web 17 2 is provided which is inserted into a running in the longitudinal direction of the heat sink 25 recess 26 and optionally fixed there.
  • the heat sink 25 itself is formed in a known manner with a plurality of longitudinally extending cooling fins 27, so that the largest possible contact surface with the environment is achieved to deliver the heat to the environment.
  • Other possibilities for coupling between LED board 16 and heat sink 25 would be conceivable.
  • Each lighting unit 10 thus consists primarily of the LED lamps 15 and the LED board 16, the rear reflector 20 and the associated heat sink 25. According to the invention, it is now provided that the lighting units 10 are adjustably arranged within the housing 110 of the lamp 100 , As here in FIG. 3 can be seen, there is a suspension of the lighting units 10 such that in each case a parallel to the longitudinal axis of the lamp I extending pivot axis II is formed, by which the respective lighting unit 10 can be pivoted.
  • a specific light distribution curve for the illumination unit 10 is achieved, which has a single, obliquely downward maximum, this means that by pivoting the entire lighting unit 10, the orientation of the maximum of the light output of the lamp can be changed.
  • the light output of a single illumination unit 10 is thus characterized-in the section perpendicular to the longitudinal axis I of the light-by a single beam whose orientation can be changed by pivoting the illumination unit 10 as a whole.
  • the orientation and shape of the beam emitted laterally downwards is achieved by the curvature of the reflector 20 and the orientation of the LEDs 15. It is provided in particular that the LED boards 16 are not completely vertical, but instead slightly inclined aligned, such that the lower edge of the sinker is closer to the longitudinal center plane of the lamp 100 than the corresponding upper edge, regardless of the degree of pivoting of the associated Lighting unit 10.
  • the illumination unit 10 has an outside of the LED board 16 extending, extending over approximately half the height side wall 11, which on its underside an inwardly directed, angled Web 12 has.
  • This lower end region of the side wall 11 defines, together with the reflector 20, a light exit opening, via which the light output of the illumination unit 10 takes place.
  • the reflectors 20 are intended to generate a relatively narrow beam in a plane perpendicular to the longitudinal axis I, which, as mentioned, is achieved by the arrangement of the LEDs 15 and the curvature of the reflector 20.
  • the widest possible light distribution should be present in order to ensure that despite the relatively short length of the lamp 100, a larger portion underneath lying shelves can be illuminated.
  • the reflector 20 is designed unchanged or translation-invariant with respect to its reflection surface 21 in a central region in the longitudinal direction. At its two end portions, however, it has inclined surface portions 22, in particular in the Figures 2 . 4 and 5 are recognizable.
  • This particular embodiment of the reflectors 20 also leads to a view of the lamp 100 from below, as in FIG. 5 is shown, again gives a special appearance.
  • these reflection surfaces lead to a bright luminous, approximately X-shaped area. This can be assisted, for example, by forming the further components of the housing 110 from a dark or black material compared to the reflectors 20.
  • the luminaire according to the invention has an extremely interesting appearance, also with regard to the area over which the light is emitted.
  • the luminaire fulfills all the requirements for a luminaire for illuminating, for example, rows of shelves in shops with regard to its light-emitting properties, wherein, moreover, it is also possible to adapt the light distribution, as a result of which the fields of use or use can be significantly improved.

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

Claims (7)

  1. Luminaire (100) avec deux unités d'éclairage (10), qui sont juxtaposées par rapport à un axe longitudinal (I) du luminaire (100) et conçues de façon à provoquer, dans un plan perpendiculaire à l'axe longitudinal (I) du luminaire (100), des émissions de lumière opposées entre elles,
    les deux unités d'éclairage (10) étant réglables autour d'un axe de pivotement (II) s'étendant parallèlement à l'axe longitudinal (I) du luminaire (10) et chaque unité d'éclairage (10) comprenant des moyens d'éclairage (15) ainsi qu'un réflecteur (20) correspondant, la disposition des moyens d'éclairage (15) étant telle que globalement seuls les rayons lumineux réfléchis par le réflecteur (20) peuvent quitter le luminaire (100),
    caractérisé en ce que
    les moyens d'éclairage (15) sont des LED et les LED sont disposées sur une ou plusieurs platines (16), les platines (16) étant orientées, dans chaque position de l'unité d'éclairage (20), de manière inclinée par rapport à la verticale.
  2. Luminaire selon la revendication 1,
    caractérisé en ce que
    les unités d'éclairage (10) peuvent être pivotés dans une plage angulaire d'environ 10° autour de l'axe de pivotement (II) correspondant.
  3. Luminaire selon la revendication 1 ou 2,
    caractérisé en ce que
    chaque unité d'éclairage (10) comprend en outre un corps de refroidissement (25) qui est couplé thermiquement avec les LED.
  4. Luminaire selon la revendication 3,
    caractérisé en ce que
    le corps de refroidissement (25) comprend un évidement (26) s'étendant dans la direction longitudinale, dans laquelle s'emboîte un élément de support plié (17) pour les platines LED (16) ou la platine pliée (16).
  5. Luminaire selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le réflecteur (20) d'une unité d'éclairage (10) est réalisé dans un plan perpendiculaire à l'axe longitudinal (I) du luminaire (100), de manière au moins partiellement courbée.
  6. Luminaire selon la revendication 5,
    caractérisé en ce que
    le réflecteur (20) comprend, au niveau de son extrémité, des portions de surfaces inclinées (22).
  7. Luminaire selon l'une des revendications précédentes,
    caractérisé en ce que
    les unités d'éclairage (10) sont disposées à l'intérieur d'un boîtier (110), dont les faces frontales (115) présentent globalement une forme de X.
EP15178001.2A 2014-07-25 2015-07-23 Dispositif d'éclairage Active EP2993394B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202014103431.5U DE202014103431U1 (de) 2014-07-25 2014-07-25 Leuchte

Publications (2)

Publication Number Publication Date
EP2993394A1 EP2993394A1 (fr) 2016-03-09
EP2993394B1 true EP2993394B1 (fr) 2018-03-07

Family

ID=53717951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15178001.2A Active EP2993394B1 (fr) 2014-07-25 2015-07-23 Dispositif d'éclairage

Country Status (3)

Country Link
EP (1) EP2993394B1 (fr)
AT (1) AT15302U1 (fr)
DE (1) DE202014103431U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3865761B1 (fr) * 2020-02-14 2022-08-31 Zumtobel Lighting GmbH Luminaire à fonction combinée de luminaire insert et de spot

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DE102016208401B4 (de) * 2016-05-17 2018-05-30 H4X E.U. Strahler
DE102017202400A1 (de) * 2017-02-15 2018-08-16 H4X E.U. Leuchte
DE202017103077U1 (de) 2017-03-03 2018-06-05 Bartenbach Holding Gmbh Beleuchtungsvorrichtung
DE102022130698A1 (de) 2022-11-21 2024-05-23 Bartenbach Holding Gmbh Verfahren und Beleuchtungsvorrichtung zum Beleuchten von Wandflächen

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EP3865761B1 (fr) * 2020-02-14 2022-08-31 Zumtobel Lighting GmbH Luminaire à fonction combinée de luminaire insert et de spot

Also Published As

Publication number Publication date
EP2993394A1 (fr) 2016-03-09
AT15302U1 (de) 2017-05-15
DE202014103431U1 (de) 2015-10-27

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