EP3042120B1 - Dispositif d'émission de lumière - Google Patents

Dispositif d'émission de lumière Download PDF

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Publication number
EP3042120B1
EP3042120B1 EP14738851.6A EP14738851A EP3042120B1 EP 3042120 B1 EP3042120 B1 EP 3042120B1 EP 14738851 A EP14738851 A EP 14738851A EP 3042120 B1 EP3042120 B1 EP 3042120B1
Authority
EP
European Patent Office
Prior art keywords
arrangement
reflector
light source
light
plane
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
EP14738851.6A
Other languages
German (de)
English (en)
Other versions
EP3042120A1 (fr
Inventor
Elmar Dünschede
Burkhard Von Kloeden
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 Germany
Original Assignee
Zumtobel Lighting GmbH Germany
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 Germany filed Critical Zumtobel Lighting GmbH Germany
Publication of EP3042120A1 publication Critical patent/EP3042120A1/fr
Application granted granted Critical
Publication of EP3042120B1 publication Critical patent/EP3042120B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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 present invention relates to an arrangement for emitting light according to the preamble of claim 1, which is adapted to be attached to a in a first plane extending support element, such as a ceiling, and a surface, which in a second, substantially is perpendicular to the first plane extending second level, to illuminate. Furthermore, the present invention relates to a so-called wallwasher, which has such an arrangement for emitting light.
  • Wallwashers are luminaires that according to their name serve to illuminate areas of a wall. These are generally recessed ceiling luminaires, which are designed such that they do not primarily emit their light - in contrast to conventional luminaires of the room lighting - downwards but instead radiate strongly asymmetrically or laterally light around an area located obliquely below the luminaire to illuminate a wall. Usually, such wallwashers are therefore positioned in the ceiling area in the vicinity of a wall.
  • wallwashers as known from the prior art, usually have so-called channel reflectors. These reflectors are designed such that they cast the light in the direction of the wall to be illuminated, although it has been found that the brightness distributions, which are achieved with such channel reflectors, have a strong maximum in the central region of the surface to be illuminated. Starting from this maximum, a strong decrease in brightness occurs laterally or above and below it, with only relatively little scope for influencing the distribution.
  • the present invention is the task Reason to provide a novel arrangement for light output, which is suitable for use in a wall washer and opens up the possibility to efficiently influence the brightness distribution.
  • the possibility should be opened to illuminate a luminous area as evenly as possible.
  • the arrangement has a light source which initially emits light in a direction away from the surface to be illuminated.
  • a reflector is provided, which is arranged and designed such that the light rays originating from the light source and occurring on the reflector are reflected back substantially uniformly distributed onto the surface to be illuminated.
  • the light source is preferably aligned in a plane which is aligned substantially parallel to the second plane, ie to the surface to be illuminated. However, it is facing away from the surface to be illuminated due to the principle of back reflection.
  • the reflector itself is, as already mentioned, designed such that the surface to be illuminated is illuminated with a uniform brightness. It is in particular a so-called free-form reflector, which has the appropriate photometric properties. Further, the reflector is curved at least in one direction, preferably in two mutually perpendicular directions, so that in fact can be effectively influenced in both directions influence on the brightness distribution.
  • a suitably trained Wallwasher preferably be designed as a so-called ceiling light, which is thus mounted in the area of a ceiling, in which case only parts of the reflector in the fitted state of the lamp survive on the underside of the ceiling.
  • FIG. 1 shows schematically the construction of a Wallwashers with an inventive arrangement designed to emit light.
  • FIG. 1 The sectional view of Fig. 1 illustrates both the structure of the arrangement according to the invention and the lighting task to be solved by means of the inventive arrangement. Shown is the lateral area of a room 100, which is bounded by a wall 101 and a ceiling 102 at its top. In this lateral area of the ceiling 102 is a so-called wallwasher 50 with an inventively designed arrangement for light output, which is generally provided with the reference numeral 1.
  • the light emitted by the arrangement 1 is intended to illuminate a specific fixed area 110 of the wall 101, the area 110 preferably being to appear as uniform as possible over its entire height. same for Preferably also in the horizontal direction or in a direction perpendicular to the plane of the drawing, so that ultimately the area to be illuminated 110 as a whole, for example, is rectangular or elliptical in shape and should appear uniformly bright.
  • the arrangement according to the invention is constructed in a special way and has for this purpose as Essential components of a large-scale light source 10 and the light source 10 are opposed to a reflector 20.
  • the light source 10 is, in particular, an LED-based light source, preferably forming a single coherent light emission surface.
  • This color conversion material which is also used when using a single LED, serves on the one hand to influence the spectral distribution of the light emitted by the or the LEDs in a desired manner, for example, to achieve white light of a predetermined color temperature, on the other hand prevents in the case of a plurality of LEDs, these represent individual, essentially punctiform light sources, which could possibly lead to variations in the brightness of the area 110 to be illuminated.
  • the arrangement of the light source 10 is such that it is aligned substantially parallel to the wall 101 or to the area to be illuminated 110 and facing away from the wall 101, wherein for achieving a flat construction as possible, the LED chips preferably also in the so-called Chip-on-board technology is executed or mounted.
  • the light source 10 is further coupled to a heat sink, not shown, in order to dissipate the heat occurring during operation efficiently.
  • the arrangement and orientation of the light source 10 causes the emitted light beams initially do not hit the wall 101. Instead, they are first reflected back by the reflector 20 such that they ultimately illuminate the area 110 to be illuminated.
  • This principle of indirect illumination ensures that the light distribution on the wall 110 to be illuminated is determined primarily by the reflector 20, which in turn means that the brightness distribution can be changed in almost any desired manner by the corresponding design of the reflector 20.
  • the shape of the reflector 20 may be selected to achieve the above-mentioned desired uniform brightness of the area 110 to be illuminated.
  • the reflector 20 is preferably designed in the form of a so-called freeform reflector, that is, its shape is not based on a single, the entire shape of the reflector descriptive mathematical equation but was optimized by modeling individual surface sections such that the Lighting task is solved.
  • Another feature of the arrangement 1 according to the invention is also that, when used as a wall washer 50, as shown, the components of the luminaire can be arranged substantially sunk in the ceiling 102 of the room 100. Only the lower portion of the reflector 20 is in this case on the ceiling bottom 102 over, which gives the light in the assembled state beyond also an interesting appearance.
  • the diameter of the reflector 20 can be chosen according to the lighting task, a typical value for this is in the range of about 115 mm.

Claims (6)

  1. Dispositif d'émission de lumière (1) qui est conçu pour être fixé à un élément de support s'étendant dans un premier plan, par exemple le plafond d'une pièce (102), et pour éclairer une surface (110) qui se trouve dans un deuxième plan s'étendant globalement perpendiculairement au premier plan,
    ce dispositif (1) comprenant :
    • une source de lumière (10) qui émet de la lumière dans une direction opposée à la surface à éclairer (110), la source de lumière (10) formant une seule surface éclairante, la source de lumière (10) étant constituée de plusieurs LED et les plusieurs LED étant ensemble recouvertes d'un matériau de conversion de couleurs,
    • un réflecteur (20), qui est disposé et conçu de façon à ce que les rayons lumineux arrivant de la source de lumière (10) sont réfléchis de manière globalement uniforme sur la surface à éclairer (110).
  2. Dispositif d'émission de lumière selon la revendication 1,
    caractérisé en ce que
    la source de lumière (20) est orientée dans un plan qui est globalement parallèle au deuxième plan.
  3. Dispositif d'émission de lumière selon l'une des revendications précédentes,
    caractérisé en ce que
    le réflecteur (20) est conçu sous la forme d'un réflecteur à forme libre.
  4. Dispositif d'émission de lumière selon l'une des revendications précédentes,
    caractérisé en ce que
    le réflecteur (20) présente, dans au moins une direction, de préférence dans deux directions perpendiculaires entre elles, une courbure.
  5. Lèche-mur (50) avec un dispositif d'émission de lumière selon l'une des revendications précédentes.
  6. Lèche-mur selon la revendication 5,
    caractérisé en ce que
    celui-ci est conçu comme un luminaire encastré dans un plafond, seules des parties du réflecteur (20) dépassant, dans l'état monté, du côté inférieur du plafond.
EP14738851.6A 2013-07-16 2014-07-15 Dispositif d'émission de lumière Active EP3042120B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013213870.9A DE102013213870A1 (de) 2013-07-16 2013-07-16 Anordnung zur Lichtabgabe
PCT/EP2014/065103 WO2015007719A1 (fr) 2013-07-16 2014-07-15 Dispositif d'émission de lumière

Publications (2)

Publication Number Publication Date
EP3042120A1 EP3042120A1 (fr) 2016-07-13
EP3042120B1 true EP3042120B1 (fr) 2017-03-29

Family

ID=51177077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14738851.6A Active EP3042120B1 (fr) 2013-07-16 2014-07-15 Dispositif d'émission de lumière

Country Status (3)

Country Link
EP (1) EP3042120B1 (fr)
DE (1) DE102013213870A1 (fr)
WO (1) WO2015007719A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015014711A1 (de) 2015-11-17 2017-05-18 Jochen C. Renz Akustikmodul mit neuartiger Leuchtfunktion
CN106641909A (zh) * 2016-12-02 2017-05-10 深圳磊迈照明科技有限公司 洗墙灯及隐藏式洗墙灯系统
CN107091420A (zh) * 2017-05-18 2017-08-25 赛尔富电子有限公司 一种led条形灯具的配光系统
AT522141B1 (de) * 2019-02-21 2020-10-15 Molto Luce Gmbh Vorrichtung zum Ausleuchten mehrerer, voneinander abgegrenzter Flächen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799136A (en) * 1987-05-29 1989-01-17 Guth Lighting Systems, Inc. Lighting fixture having concave shaped reflector and improved asymmetric light reflection system
DE10345567A1 (de) * 2003-09-29 2005-05-19 Erco Leuchten Gmbh Reflektorleuchte, wie Boden-, Decken- oder Wandeinbau-Reflektorleuchte, insbesondere Stufen-Reflektorleuchte
DE20315131U1 (de) * 2003-09-29 2005-02-10 Erco Leuchten Gmbh Reflektorleuchte, wie Boden-, Decken- oder Wandeinbau-Reflektorleuchte, insbesondere Stufen-Reflektorleuchte
CN101180496B (zh) * 2005-05-25 2010-05-19 皇家飞利浦电子股份有限公司 照射系统、架式照明系统以及洗墙式照明系统
DE102006030646B4 (de) * 2006-04-21 2012-04-26 Siteco Beleuchtungstechnik Gmbh Innenraumleuchte zur Ausleuchtung einer Wand oder Decke
WO2008028517A1 (fr) * 2006-09-07 2008-03-13 Osram Gesellschaft mit beschränkter Haftung Lampe avec dispositif de déviation
US8038321B1 (en) * 2008-05-06 2011-10-18 Koninklijke Philips Electronics N.V. Color mixing luminaire
FR2950670B1 (fr) * 2009-09-25 2011-10-28 Effilux Dispositif d'eclairage indirect d'une surface a diodes electroluminescentes
DE102010019436A1 (de) * 2010-05-05 2011-11-10 Christian Bartenbach Wand- und/oder Deckenleuchte

Also Published As

Publication number Publication date
EP3042120A1 (fr) 2016-07-13
WO2015007719A1 (fr) 2015-01-22
DE102013213870A1 (de) 2015-01-22

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