EP2734777B1 - Dispositif d'émission de lumière - Google Patents

Dispositif d'émission de lumière Download PDF

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Publication number
EP2734777B1
EP2734777B1 EP12735561.8A EP12735561A EP2734777B1 EP 2734777 B1 EP2734777 B1 EP 2734777B1 EP 12735561 A EP12735561 A EP 12735561A EP 2734777 B1 EP2734777 B1 EP 2734777B1
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EP
European Patent Office
Prior art keywords
light
lens
opening
arrangement
lenses
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
EP12735561.8A
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German (de)
English (en)
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EP2734777A1 (fr
EP2734777B2 (fr
Inventor
Stephan Ebner
Patrik Gassner
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
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Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Priority to PL12735561T priority Critical patent/PL2734777T5/pl
Publication of EP2734777A1 publication Critical patent/EP2734777A1/fr
Publication of EP2734777B1 publication Critical patent/EP2734777B1/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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • 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 with at least one LED light source and at least one in the light emission direction after the LED light source arranged first lens.
  • LED lamps have hitherto frequently been used as light sources.
  • the progressive development of LEDs now leads more and more to the fact that, for example, fluorescent lamps are replaced by corresponding LEDs. This results, on the one hand, from the fact that LED light sources have considerable advantages in terms of lifetime and energy efficiency compared to conventional light sources.
  • the luminous intensities that can be achieved with the help of LEDs are now sufficiently high that LED light sources can easily replace conventional light sources such as fluorescent lamps.
  • an elongated assembly having a plurality of LEDs, each LED having a first optical device associated therewith and the elongated assembly having a second optical device common to all the LEDs or first optical devices disposed upstream of the first optical devices.
  • US 2006/0146531 discloses an arrangement for emitting light according to the preamble of claim 1.
  • the LED light sources are associated with lenses which are arranged in the emission direction after the LED light sources.
  • Several such lenses are in this case joined together to form an elongated optical element, wherein preferably each LED light source is associated with exactly one lens of the optical element.
  • FIG. 1 Such an arrangement for emitting light 1 is shown, which has a housing 3 with a light exit opening, wherein in the housing 3, the LED light sources 4 are arranged and the to the optical element. 2 assembled lenses 6, the housing 3 in the light emission direction close.
  • an optical element 2 is shown which consists of a plurality of lenses 6. Such optical elements 2 are in this case usually produced by injection molding.
  • FIG. 2 goes the light intensity distribution curve of in FIG. 3 shown lenses 6 and the optical element 2 and, accordingly, the arrangement for the light output 1, wherein the curve shown there the values in the C0 / C180 level, ie in the transverse direction to the in FIG. 3 shown optical element 2 and the arrangement for light emission 1, corresponds.
  • the Fig. 2 shown light intensity distribution curve in this case has two separate wings, each having a tip region at 15 ° and adjoining flank areas on both sides, in which the light intensity drops to a much lower value than in the tip region, wherein one of the flanks to the angle range around 0 ° falls off.
  • the angle between the two tip regions of the wings corresponds to the opening or emission angle of the light emitted by the first lens. Accordingly, the opening or emission angle here has a value of 30 °.
  • Such a luminous intensity distribution is advantageous, for example, when a corresponding arrangement for emitting light 1 is to be arranged along a corridor, which has shelves each on the right and left, which are to be illuminated accordingly by the arrangement for emitting light 1.
  • FIG. 2 apparent half opening or beam angle of 15 ° is additionally also in FIG. 1 located.
  • This opening or emission angle results from the design of the lenses 6, which is why this opening or emission angle can be changed by a corresponding change in the design of the lenses 6, if a different opening or emission angle of the arrangement for emitting light 1 is desired
  • the present invention is based on the object of further developing the above-outlined arrangement for emitting light such that the ⁇ réellespp. Beam angle of the arrangement for emitting light can be changed without the lenses or the optical element must be replaced.
  • an arrangement for emitting light which has at least one LED light source and at least one first lens arranged in the light emission direction after the LED light source, wherein a second lens for influencing the light emitted by the first lens is arranged in the light emission direction downstream of the first lens ,
  • the luminous intensity distribution curve of the light emitted by the first lens in the C0 / C180 plane in this case has two substantially symmetrical wings separated each other substantially in an angular range of 0 ° to 90 °, relative to an axis parallel to the light emission through the The center of gravity of the first lens lie, and each have a tip region and adjoining flank regions in which the light intensity drops to a significantly lower value than in the tip region, wherein the tip region is at angles greater than 0 ° and one of the flanks to the angular range 0 °, wherein the angle between the two tip portions of the wings corresponds to the opening or emission angle of the light emitted from the first lens.
  • the second lens is formed and arranged after the first lens such that the opening or emission angle of the light emitted by the first lens is reduced or increased by the second lens.
  • the opening or emission angle of the light emitted by the first lens is greater than 0 °.
  • the second lens thus makes it possible for the opening or emission angle of the light output of the entire arrangement for light emission to be changed without having to replace the first lens, the light output in the C90 / C270 level being determined in particular by the first Lens is affected.
  • the arrangement for emitting light has a plurality of LED light sources and a plurality of first lenses, wherein the first lenses are joined together to form an optical element.
  • each LED light source is assigned in each case exactly one first lens of the optical element.
  • the arrangement for emitting light has a housing with a light exit opening, wherein the at least one LED light source is arranged in the housing, and the at least one first lens closes the housing in the light emission direction.
  • first lenses are associated with second lenses.
  • FIG. 1 As already explained, an arrangement known from the prior art for emitting light 1 is shown.
  • the arrangement for emitting light 1 has a housing 3 with a light exit opening, wherein in the housing 3 LED light sources 4 are arranged and the Lichtaustrittsöfmung is closed by an optical element 2.
  • the optical element 2 in this case consists of a plurality of first lenses 6, which are arranged in the light emission direction after the LED light sources 4. Such an optical element 2 composed of a plurality of lenses 6 is exemplified in FIG FIG. 3 shown.
  • FIG. 2 is the radiation characteristic or light intensity distribution curve of such first lens 6 and the optical element 2 and thus the arrangement for light emission 1 in the C0 / C180 plane and thus shown in the transverse direction to the arrangement for light emission 1 and the optical element 2.
  • This light intensity distribution is suitable, for example, for shops, where shelves along the corridors left and right are arranged relatively close to the aisles, which are to be particularly illuminated by appropriate arrangements for light output 1.
  • a device 5 is also provided on the upper side of the housing, which device permits mechanical fastening of the arrangement for emitting light 1 to a mounting rail and also makes contact with lines extending within the mounting rail.
  • FIGS. 4 and 6 two embodiments of the invention are shown, wherein the in the FIGS. 4 and 6 otherwise shown the same components as the arrangement for light emission 1 in FIG. 1 exhibit.
  • FIG. 4 a corresponding embodiment variant is shown, in which a second lens 7 is formed and arranged after the first lens 6 that is reduced or reduced by the second lens 7, the opening or emission angle of the light emitted from the first lens 6, being at the in FIG. 4 shown variant of the opening or beam angle goes to 0 °.
  • FIG. 5 The corresponding luminous intensity distribution curve or light emission characteristic to the in FIG. 4 shown arrangement for light emission 1 is in FIG. 5 shown. This is in contrast to the in FIG. 2 shown light intensity distribution curve, the two tip areas are to be taken at 15 °, only a tip area at 0 ° to remove, resulting in an opening or beam angle of 0 °.
  • the arrangement for emitting light 1 is suitable FIG. 4 For example, for the lighting of corridors in shops, where no shelves are arranged left and right.
  • the second lens 7 has a tapered to the center triangle, wherein the triangle is disposed on the side facing away from the first lens 6 of the second lens 7 and the apex of the triangle of the first lens 6 and the LED light source 4 way shows.
  • This triangular shape breaks or directs the light emitted by the first lens 6 with an opening or emission angle of 15 ° in such a way that the opening angle or emission angle thereafter essentially has a value of 0 °.
  • Such an embodiment is, for example, as desirable, for example, when no shelves are arranged laterally along a corridor and accordingly only the corridor is to be illuminated or when high shelves are to be illuminated.
  • the entire optical element must be replaced.
  • an arrangement for emitting light is installed with a corresponding optical element and then assigned according to the local conditions subsequently second lenses of the arrangement for emitting light. So it is conceivable, for example, that in a redesign of aisles in shops, where previously normal shelves were arranged laterally along the aisle and accordingly, for example, arrangements for the light output 1 as in FIG. 1 have been used, after a redesign in which the shelves have been removed or arranged correspondingly high shelves, not the entire assembly must be exchanged for light emission or optical element 2 but only second lenses 7 of the light emitting device 1 assigned have to.
  • FIG. 4 embodiment shown shows a variant in which the opening or beam angle is substantially 0 °. It would also be conceivable, however, that the opening or emission angle is not reduced so much or even more strongly.
  • a second lens 8 is provided after the first lens 6, by which the opening or emission angle of the light emitted from the first lens is increased.
  • the second lens 8 is in this case designed such that half the opening or emission angle has a value of about 30 °.
  • the light intensity distribution curve of in FIG. 6 wherein, in comparison with the luminous intensity distribution curve in FIG. 2 It can be seen that the two pointed areas are now at 30 ° and thus the opening or emission angle has a value of 60 °. Accordingly, this light emitting device 1 has a luminous intensity distribution which, like the luminous intensity distribution in FIG FIG. 1 shown arrangement for light emission 1, two substantially symmetrical wing shows.
  • the second lens 8 has a wide-open V-shape on the side facing away from the first lens 6, wherein the tip of the V-shape in Direction of the first lens 6 shows.
  • This essentially the counterpart to the shape of the second lens 7 FIG. 4 forming form breaks or deflects the light emitted by the first lens 6 in such a way that the half-opening or emission angle predetermined by the first lens is increased from 15 ° to 30 °.
  • an arrangement according to the invention can be used for light output, for example, to illuminate shelves in wider aisles or lower heights of ceilings in sales rooms. So it would also be conceivable that, for example, in a redesign of a sales room in which a corridor is widened or the suspension height of the ceiling is made lower, the previously used arrangement for light emission 1, such as in FIG. 1 shown, is adapted by the simple attachment of the second lens 8 and thus ensures that even after the redesign of the sales rooms, the shelves are well illuminated accordingly.
  • the second lens 8 may also be configured so that a greater or lesser enlargement of the opening or radiation angle takes place.
  • this can be changed by a predetermined by a first optics opening or beam angle by a second arranged after the first optics optics, wherein in the C90 / C270 level influencing (glare, luminance reduction, compliance UGR) takes place in particular by the first lens and the second lens hardly influences it.
  • C90 / C270 level influencing luminance reduction, compliance UGR

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

Claims (6)

  1. Dispositif (1) d'émission de lumière, comportant au moins une source lumineuse de DEL (4) et au moins une première lentille (6) disposée dans la direction du rayonnement lumineux après la source lumineuse de DEL (4), dans lequel dans la direction de rayonnement lumineux située après la première lentille (6), est disposée une seconde lentille (7, 8) pour influencer la lumière dégagée par la première lentille (6), caractérisé en ce que la courbe de distribution d'intensité de lumière de la lumière dégagée par la première lentille (6) possède, sur le plan C0/C180, deux ailes essentiellement symétriques divisées l'une de l'autre qui reposent essentiellement dans un intervalle d'angle compris entre 0° et 90°, par rapport à un axe parallèle à la direction de rayonnement lumineux à travers le foyer de lumière de la première lentille (6), et possède une zone d'extrémité et des zones latérales adjacentes à celle-ci des deux côtés, où dans les zones latérales, l'intensité lumineuse décroît à une valeur bien plus faible que dans la zone d'extrémité, dans lequel la zone d'extrémité est à des angles supérieurs à 0° et l'un des côtés décroît vers l'intervalle angulaire autour du 0°, dans lequel l'angle entre les deux zones d'extrémité des ailes correspond à l'angle d'ouverture ou de rayonnement de la lumière dégagée par la première lentille (6) et en ce que la seconde lentille (7, 8) est configurée et disposée après la première lentille (6) de telle sorte qu'à travers la seconde lentille (7, 8), l'angle d'ouverture ou de rayonnement de la lumière dégagée par la première lentille (6) est réduit ou élargi.
  2. Dispositif d'émission de lumière selon la revendication 1, caractérisé en ce que l'angle d'ouverture ou de rayonnement de la lumière dégagée par la première lentille (6) est supérieur à 0°.
  3. Dispositif d'émission de lumière selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif (1) d'émission de lumière possède plusieurs sources lumineuses de DEL (4) et plusieurs premières lentilles (6), dans lequel les premières lentilles (6) sont combinées dans un élément optique (2).
  4. Dispositif d'émission de lumière selon la revendication 3, caractérisé en ce qu'à chaque source lumineuse de DEL (4) est exactement attribuée une première lentille (6) de l'élément optique (2).
  5. Dispositif d'émission de lumière selon l'une quelconque des revendications 3 et 4, caractérisé en ce que des secondes lentilles (7, 8) sont uniquement attribuées à une partie des premières lentilles (6).
  6. Dispositif d'émission de lumière selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'émission de lumière (1) possède un boîtier (3) avec une ouverture de sortie de lumière, dans lequel l'au moins une source lumineuse de DEL (4) est disposée dans le boîtier (3) et l'au moins une première lentille (6) ferme le boîtier (3) dans la direction du rayonnement lumineux.
EP12735561.8A 2011-07-19 2012-07-18 Dispositif d'émission de lumière Active EP2734777B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12735561T PL2734777T5 (pl) 2011-07-19 2012-07-18 Układ do emisji światła

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011079393A DE102011079393A1 (de) 2011-07-19 2011-07-19 Anordnung zur Lichtabgabe
PCT/EP2012/064049 WO2013011048A1 (fr) 2011-07-19 2012-07-18 Dispositif d'émission de lumière

Publications (3)

Publication Number Publication Date
EP2734777A1 EP2734777A1 (fr) 2014-05-28
EP2734777B1 true EP2734777B1 (fr) 2015-06-03
EP2734777B2 EP2734777B2 (fr) 2019-11-20

Family

ID=46514390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12735561.8A Active EP2734777B2 (fr) 2011-07-19 2012-07-18 Dispositif d'émission de lumière

Country Status (6)

Country Link
US (1) US20140153240A1 (fr)
EP (1) EP2734777B2 (fr)
CN (1) CN103688104B (fr)
DE (1) DE102011079393A1 (fr)
PL (1) PL2734777T5 (fr)
WO (1) WO2013011048A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019106804U1 (de) * 2019-12-06 2021-03-09 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer länglichen Lichtquelle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018102205U1 (de) * 2018-04-20 2019-07-24 Zumtobel Lighting Gmbh Linsenanordnung zum Richten des von einem Leuchtmittel emittierten Lichts

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP1890076A1 (fr) 2005-06-01 2008-02-20 CCS Inc. Dispositif d'irradiation lumineuse
US7339200B2 (en) 2005-08-05 2008-03-04 Koito Manufacturing Co., Ltd. Light-emitting diode and vehicular lamp
US20100061090A1 (en) 2005-07-13 2010-03-11 Koninklijke Philips Electronics, N.V. Illumination system
DE102010004221A1 (de) 2009-05-05 2010-11-11 Siteco Beleuchtungstechnik Gmbh Straßenleuchte mit punktförmigen Lichtquellen, insbesondere LED-Leuchte

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TW330233B (en) * 1997-01-23 1998-04-21 Philips Eloctronics N V Luminary
FR2776595B1 (fr) * 1998-03-31 2000-06-16 Valeo Vision Feu de signalisation comprenant plusieurs sources lumineuses
US20060146531A1 (en) * 2004-12-30 2006-07-06 Ann Reo Linear lighting apparatus with improved heat dissipation
EP1998105A1 (fr) † 2007-05-29 2008-12-03 Martin Professional A/S Dispositif d'éclairage avec optique remplaçable
KR100883344B1 (ko) * 2008-08-08 2009-02-12 김현민 Ｌｅｄ 조명램프
DE202009007292U1 (de) * 2009-05-20 2010-10-07 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Straßen
CN101639196B (zh) * 2009-08-24 2011-07-27 深圳市九拓光电有限公司 一种发光二极管透镜和照明装置
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1890076A1 (fr) 2005-06-01 2008-02-20 CCS Inc. Dispositif d'irradiation lumineuse
US20100061090A1 (en) 2005-07-13 2010-03-11 Koninklijke Philips Electronics, N.V. Illumination system
US7339200B2 (en) 2005-08-05 2008-03-04 Koito Manufacturing Co., Ltd. Light-emitting diode and vehicular lamp
DE102010004221A1 (de) 2009-05-05 2010-11-11 Siteco Beleuchtungstechnik Gmbh Straßenleuchte mit punktförmigen Lichtquellen, insbesondere LED-Leuchte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019106804U1 (de) * 2019-12-06 2021-03-09 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer länglichen Lichtquelle
EP3832194A1 (fr) 2019-12-06 2021-06-09 Zumtobel Lighting GmbH Système optique permettant d'influencer l'émission lumineuse d'une source lumineuse allongée

Also Published As

Publication number Publication date
US20140153240A1 (en) 2014-06-05
PL2734777T3 (pl) 2015-10-30
DE102011079393A1 (de) 2013-01-24
CN103688104B (zh) 2017-08-08
CN103688104A (zh) 2014-03-26
WO2013011048A1 (fr) 2013-01-24
EP2734777A1 (fr) 2014-05-28
EP2734777B2 (fr) 2019-11-20
PL2734777T5 (pl) 2020-06-29

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