EP3374687A1 - Dispositif d'éclairage à del et procédé permettant d'agir sur la répartition sectrale des dispositifs d'éclairage à del - Google Patents

Dispositif d'éclairage à del et procédé permettant d'agir sur la répartition sectrale des dispositifs d'éclairage à del

Info

Publication number
EP3374687A1
EP3374687A1 EP16795059.1A EP16795059A EP3374687A1 EP 3374687 A1 EP3374687 A1 EP 3374687A1 EP 16795059 A EP16795059 A EP 16795059A EP 3374687 A1 EP3374687 A1 EP 3374687A1
Authority
EP
European Patent Office
Prior art keywords
led
light
color
group
leds
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.)
Withdrawn
Application number
EP16795059.1A
Other languages
German (de)
English (en)
Inventor
Lisa MORR
Christian GERBIG
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Intelligent Power Ltd
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 Eaton Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Publication of EP3374687A1 publication Critical patent/EP3374687A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/62—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K2227/00—Animals characterised by species
    • A01K2227/50—Amphibians, e.g. Xenopus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K29/00—Other apparatus for animal husbandry
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to an LED lamp with a plurality of differently colored LEDs (light-emitting diodes). These have at least one LED group with the colors blue, green and red for additive color mixing.
  • such a light-emitting diode is a semiconductor diode in which the property of the light generated can be varied by appropriate doping of the half-material. Especially the spectral range and the efficiency can be influenced in this way.
  • LEDs with the colors red, green, yellow, orange and also blue.
  • light-emitting diodes are not heat radiators, such as incandescent lamps and emit light in a limited spectral range. That is, the light emitted from an LED is almost monochromatic.
  • CIE standard color system For the corresponding representation of the totality of perceptible colors, the so-called RGB color space or else a so-called CIE standard color chart is used in this context.
  • RGB color space For the corresponding representation of the totality of perceptible colors, the so-called RGB color space or else a so-called CIE standard color chart is used in this context.
  • this color space can be combined with the primary colors red, green and blue by a coordinate representation to describe a corresponding proportion of each primary color of any color of the color space, see additive color mixing.
  • a color space can also be represented by representing a corresponding curve all by an LED group with the colors blue, green and red representing colors. There are areas of the entire theoretical color space that can not be reached, for example, by such an LED group. That is, certain perceptible colors are not representable by the LED group.
  • color rendering index Ra Another size related to color rendering is the so-called color rendering index Ra.
  • This is understood as a photometric quantity with which the quality of the color reproduction of light sources of the same correlated color temperature can be described.
  • the color rendering index reaches a value of 100 if a corresponding light source perfectly reproduces the spectrum of a reference light source of the same color temperature in the range of visible wavelengths.
  • EP 2 601 436 In connection with LED lights, it is also known from EP 2 601 436 to influence a spectral distribution of the luminaire. This influence serves, for example, to attenuate or even to amplify certain colors when the light is emitted by the luminaire, as required, with this influencing being carried out with regard to a specific species or specific animal species which have increased sensitivity in a corresponding spectral range compared to humans.
  • An example of such an animal species are turtles. These are quenched by certain spectral distributions and the associated brightness sensation, so that, for example, they do not visit beach areas or the like for oviposition, in which an illumination with a corresponding spectral component is present. That is, this particular portion of the spectral distribution is reduced without suffering from human illumination of pathways or the like. This is described in EP 2 601 436.
  • the invention has for its object to improve an LED lamp of the type mentioned in that more area of the color space can be achieved with high color rendering index and optionally at the same time influence the spectral distribution in view of increased sensitivities of certain animal species compared to humans.
  • This object is solved by the features of patent claim 1.
  • the solution is characterized in that at least one additional LED is associated with one of the colors of the LED group different color of the LED group.
  • This additional LED results in their corresponding control another color, which makes other or additional areas of the color space accessible together with the colors of the LED group.
  • the additional LED not only other areas of the color space are achieved in a simple manner, but also the spectral distribution in particular of the visible light of the corresponding LED light can be influenced, for example, to a higher sensitivity of a particular species or species compared to humans account wear.
  • the color rendering index in the case of the LED luminaire according to the invention is increased by the additional LED.
  • the LED group may be formed of separate individual LEDs. That is, there is one LED with the color blue, one LED with the color green and one LED with the color red, which are each separately controllable.
  • Another possibility for realizing an LED group can be seen, for example, in that it has at least one multi-chip LED.
  • Such a multi-chip LED is characterized in particular by the fact that three different LED chips are combined to form a so-called multi-chip LED.
  • Yet another possibility for realizing an LED group is, for example, that it is formed from at least one LED module.
  • Such an LED module may have one or more of the above-mentioned LEDs of the respective colors blue, green and red. For each of these LED groups applies that this is assigned at least one additional LED. Of course, depending on the number of LEDs in a group, several additional LEDs can be assigned to such a group.
  • the LED group can be formed of individually controllable LEDs. This also applies in connection with the additional LED, which can also be controlled individually or can also be part of the LED group and the corresponding realization of such an LED group.
  • the auxiliary LED may be formed in a manner similar to the LEDs of the LED group, namely as a single LED, as part of the multi-chip LED or as part of the LED module. This also applies analogously to the two, three or more additional LEDs.
  • the LED light can have a control device for individually controlling each LED group or each LED.
  • this control is not only used, for example, to control the current of the corresponding LEDs, but also as light control and / or time control.
  • one or more LEDs depending on the time of day is controlled differently or a total of a corresponding light control of the LED light can be done in particular daylight-dependent.
  • the LED light in bright daylight can be turned off by such a light control, while it is already switched on at dusk or in bad weather with a certain intensity, which then reaches its maximum value in the dark.
  • the LED light can be influenced in its spectral distribution in order to take into account, for example, corresponding increased sensitivities of certain animal species or a specific animal species in comparison to humans.
  • a light output of at least one LED of the LED group is reduced or this at least one LED is turned off, while at least one additional LED is turned on and driven for light output.
  • a reduction of the light output or activation of the additional LED is effected in particular by a control of the power supply.
  • the control takes place, for example, in that one LED of the LED group with the color blue is reduced or switched off in its light output, while an additional LED with the color yellow or amber is switched on and controlled accordingly.
  • the color "amber” corresponds to a primary color which lies between yellow and orange
  • the method according to the invention is used in particular to influence the spectral distribution of the LED luminaire in a region in which a particular animal species or specific species of animal has a higher density
  • the influencing of the spectral distribution takes place in particular in the visible range of the light, see, for example, the switching off of an LED of the color blue and the switching on of an additional LED with the color yellow or amber.
  • Figure 1 shows a cross section through an embodiment of an LED lamp according to the invention
  • Figure 2 is a perspective view obliquely from below of the LED light according to FIG.
  • FIG. 3 shows a CIE standard color system for essentially one LED group of LEDs of the colors blue, green and red;
  • FIG. 4 shows a CIE standard color system analogous to FIG. 3 with activated additional LED
  • Figure 5 is a spectral distribution of the LED lamp according to the invention with controlled
  • FIG. 6 shows a spectral distribution analogous to FIG. 5 without additional LED
  • FIG. 7 is a schematic diagram of an LED lamp according to the invention with LED groups and
  • FIG. 1 shows a cross section through an exemplary embodiment of an LED luminaire 1 according to the invention.
  • This has a cross-section in approximately semi-circular lamp housing 7.
  • This has at its lower end in Figure 1 an opening in which by means of a Abdeckungshalterings 9 a transparent cover 8 is held.
  • the cover retaining ring 9 can be screwed into the luminaire housing 7.
  • the luminaire housing 7 has on its inside a reflection device 1 1 and its outside is simultaneously formed as a cooling device 19.
  • a printed circuit 12 is arranged, on which a plurality of LEDs 2, 3, 4 and 5 is arranged. These are arranged annularly within the lamp housing.
  • a cover fixing ring 20 is arranged and the cover 8 is surrounded by a sealing ring 10.
  • FIG. 2 shows the LED light 1 according to FIG. 1 in a perspective view obliquely from below.
  • FIGS. 3 and 4 show two different RGB color spaces 13 or CIE standard color systems.
  • a black body curve 14 is indicated, and in FIG. 3 a corresponding color space with colors which can be represented by an LED group with the colors blue, green and red, see the triangular border , These are the colors that can be displayed by the LED lamp without additional LED.
  • certain colors can not be represented, for example see a large part of the yellow area between wavelengths from 560 to approximately 580 nm.
  • the corresponding additional LED 5 see also the following figures, additionally turned on, extends the RGB color space 13 corresponding to Figure 4, see the extension of the corresponding triangle of Figure 3 in about a dragon shape of Figure 4 with additional point in the Wavelength 575 nm. That is, a large area of the yellow color space is additionally accessible.
  • the representation of the RGB color space 13 according to FIG. 4 corresponds to an additional LED of the color yellow or amber. It is of course possible to extend the color space in other directions with respect to that of Figure 3, for example, by other colored additional LEDs are switched on.
  • FIGS. 3 and 4 the color space of RGB LEDs, see FIG. 3, can be extended by assigning an additional LED, see FIG. 4.
  • the representation in FIGS. 5 and 6 is analogous, showing a corresponding spectral distribution, in particular in the region of the visible light of the LED luminaire according to the invention, with two different circuits of corresponding LEDs.
  • FIG. 5 shows the spectral distribution 15 with an LED group of the colors blue, green and red and an additional LED of the color amber.
  • a corresponding LED of the LED group with color blue is switched off.
  • a corresponding color rendering index has a value of 64 and results in a spectral distribution that is adapted to a sensitivity of a specific species, here turtle. That is, the spectral distribution is turtle friendly, that is, there is no deterrence or the like of turtles, for example, for oviposition on a beach or the like with appropriate lighting Spectral distribution of Figure 5 want. Furthermore, the lighting is sufficient for people to walk or work along paths or near factories or the like near the oviposition area of turtles, for example.
  • the correspondingly calculated color rendering index is lower in FIG. 6, namely 43.
  • the spectral distribution can be adapted with regard to corresponding different sensitivities of a specific animal species and humans, for example, not to prevent the animal by a deterrent lighting, for example, at a laying eggs.
  • the animal species indicated was exemplary only, and other animal species may possibly also be considered by other spectral distributions according to Figures 5 and 6, according to their photosensitivity.
  • the light output is in no way negatively influenced and at the same time a high color rendering index is achieved. Overall, there is a good visual effectiveness of the LED lamp according to the invention.
  • a corresponding LED group or RGB LED can be implemented in different ways.
  • An example is shown in FIG.
  • Other examples may include an LED array of separate discrete LEDs, these discrete LEDs each having the color blue, green, or red.
  • each LED group can be formed from at least one multi-chip LED or from at least one LED module. Such an LED module may in turn comprise individual LEDs or even multi-chip LEDs.
  • auxiliary LED or the majority of these LEDs can also be a single LED, as part of a multi-chip LED or be formed as part of the LED module, so that the additional LED can be handled and installed together with the LED group.
  • each LED group 17 each with a LED 2, 3, 4 of the color blue, green and red are shown. At least two of the LED groups 17 are part of a superordinate LED module 18. Part of each LED module 18 is also an additional LED 5, for example, the color yellow or amber.
  • each LED module 18 includes only one LED group 17 and the additional LED 5 is assigned to the module.
  • each of the individual LEDs 2, 3, 4 or 5 of Figure 7 is already an LED group 17, for example, includes an LED of the color blue, green, red and the color of the corresponding additional LED.
  • each of the individual LEDs 2, 3 and 4 according to FIG. 7 is a multi-chip LED which already comprises three LEDs of the colors blue, green and red.
  • LEDs either individually or as a group, as well as LED groups and LED modules are possible.
  • the representation of Figure 7 is only to illustrate the invention and in particular for explaining the assignment of an additional LED for example, an RGB LED.
  • a control device 6 of the LED lamp 1 is assigned. This is used to control the individual LEDs and in particular, see the spectral distribution 15 and 16 of Figures 5 and 6, for driving an LED of the corresponding LED group and for driving the auxiliary LED or LEDs. As a result, for example, a blue LED of each LED group is turned off and the corresponding additional LED 5 is turned on. As a result, the different spectral distributions 15 and 16 according to FIGS. 5 and 6 are realized. This also applies analogously to FIGS. 3 and 4 and the different regions of the RGB color space.
  • the corresponding control device can not only be used to control the individual LEDs for changing the spectral range, but can also be used overall for light control and / or time control.
  • the lighting control can comprise a total of dimming and switching on and off the LED light
  • the time control includes a corresponding timing to For example, in daylight and sufficient lighting to turn off the LED light.
  • LED lamp and a corresponding method results in an LED lamp and a corresponding method in which the light output of at least one LED of an LED group can be reduced or this at least one LED is turned off. Instead of this LED, which is reduced or switched off in the light output, at least one additional LED is then switched on and driven to emit light. This is usually done by controlling the power supply of the various LEDs.
  • LED lamp and method according to the invention are used to influence a corresponding spectral distribution of the LED light in a range in which a certain species or certain animal species have a higher sensitivity compared to humans.
  • the light output is reduced as otherwise by filters, for example, and a high color rendering index is made possible.

Abstract

L'invention concerne un dispositif d'éclairage à del (1) doté d'une pluralité de diodes électroluminescentes - dels - (2, 3, 4) de couleurs différentes, qui forment au moins des groupes de dels (17) de couleurs bleue, verte et rouge aux fins de mélange de couleurs par addition, au moins une diode électroluminescente (5) supplémentaire affectée au groupe de dels ayant une couleur qui diffère des couleurs du groupe de dels (17) .
EP16795059.1A 2015-11-13 2016-11-14 Dispositif d'éclairage à del et procédé permettant d'agir sur la répartition sectrale des dispositifs d'éclairage à del Withdrawn EP3374687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015014766.8A DE102015014766A1 (de) 2015-11-13 2015-11-13 LED-Leuchte und Verfahren zur Beeinflussung der Spektralverteilung der LED-Leuchte
PCT/EP2016/077552 WO2017081313A1 (fr) 2015-11-13 2016-11-14 Dispositif d'éclairage à del et procédé permettant d'agir sur la répartition sectrale des dispositifs d'éclairage à del

Publications (1)

Publication Number Publication Date
EP3374687A1 true EP3374687A1 (fr) 2018-09-19

Family

ID=57288436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16795059.1A Withdrawn EP3374687A1 (fr) 2015-11-13 2016-11-14 Dispositif d'éclairage à del et procédé permettant d'agir sur la répartition sectrale des dispositifs d'éclairage à del

Country Status (5)

Country Link
US (1) US20180359831A1 (fr)
EP (1) EP3374687A1 (fr)
CN (1) CN108474523A (fr)
DE (1) DE102015014766A1 (fr)
WO (1) WO2017081313A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA201442S (en) * 2020-05-28 2021-12-15 Luple Inc Portable light
USD905318S1 (en) * 2020-06-24 2020-12-15 Hefei Xingsirui Electronic Commerce Co., Ltd. Lamp

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7507001B2 (en) * 2002-11-19 2009-03-24 Denovo Lighting, Llc Retrofit LED lamp for fluorescent fixtures without ballast
US8125137B2 (en) * 2005-01-10 2012-02-28 Cree, Inc. Multi-chip light emitting device lamps for providing high-CRI warm white light and light fixtures including the same
US7658506B2 (en) * 2006-05-12 2010-02-09 Philips Solid-State Lighting Solutions, Inc. Recessed cove lighting apparatus for architectural surfaces
CN101075608A (zh) * 2006-05-18 2007-11-21 财团法人工业技术研究院 发光装置及其操作方法
DE102007003345B4 (de) * 2007-01-17 2010-07-29 Erco Gmbh Leuchtensteuerungssystem
US7703943B2 (en) * 2007-05-07 2010-04-27 Intematix Corporation Color tunable light source
WO2009029575A1 (fr) * 2007-08-24 2009-03-05 Photonic Developments Llc Lampe à diode électroluminescente sans rayonnement supprimant la mélatonine
JP2010153065A (ja) * 2008-12-24 2010-07-08 Sony Corp 照明装置および方法、表示装置および方法、並びにプログラム
DE102010033141A1 (de) 2010-08-03 2012-02-09 Cooper Crouse-Hinds Gmbh Leuchte
TWI471061B (zh) * 2011-10-17 2015-01-21 Lextar Electronics Corp 燈具
DE102013005932A1 (de) * 2013-04-05 2014-10-23 Cooper Crouse-Hinds Gmbh LED-Modul, Leuchte mit einem solchen und Verfahren zur Beeinflussung eines Lichtspektrums
DE102013005934A1 (de) * 2013-04-05 2014-10-23 Cooper Crouse-Hinds Gmbh LED-Modul, Leuchte mit einem solchen und Verfahren zur Beeinflussung eines Lichtspektrums
US9360174B2 (en) * 2013-12-05 2016-06-07 Ketra, Inc. Linear LED illumination device with improved color mixing

Also Published As

Publication number Publication date
DE102015014766A1 (de) 2017-05-18
CN108474523A (zh) 2018-08-31
US20180359831A1 (en) 2018-12-13
WO2017081313A1 (fr) 2017-05-18

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