DE20007134U1 - Luminaire with adjustable color location - Google Patents
Luminaire with adjustable color locationInfo
- Publication number
- DE20007134U1 DE20007134U1 DE20007134U DE20007134U DE20007134U1 DE 20007134 U1 DE20007134 U1 DE 20007134U1 DE 20007134 U DE20007134 U DE 20007134U DE 20007134 U DE20007134 U DE 20007134U DE 20007134 U1 DE20007134 U1 DE 20007134U1
- Authority
- DE
- Germany
- Prior art keywords
- light
- color
- light source
- primary
- luminaire
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims description 6
- 239000003086 colorant Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
Classifications
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
-
- 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
- H05B35/00—Electric light sources using a combination of different types of light generation
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- 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
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
• ··
für elektrische Glühlampen mbH., Münchenfor electric light bulbs mbH., Munich
Leuchte mit einstellbarem FarbortLamp with adjustable color location
Technisches GebietTechnical area
Die Erfindung geht aus von einer Leuchte mit einstellbarem Farbort gemäß dem Oberbegriff des Anspruchs 1. Es handelt sich dabei insbesondere um Lichtquellen, die mindestens eine Leuchtstofflampe mit mindestens einer LED kombinieren. Insbesondere kann auch die Farbtemperatur der Leuchte und sogar ihre Lichtfarbe verändert werden.The invention is based on a lamp with an adjustable color location according to the preamble of claim 1. This particularly involves light sources that combine at least one fluorescent lamp with at least one LED. In particular, the color temperature of the lamp and even its light color can be changed.
Aus der EP 607 600 ist bereits eine Leuchte mit einstellbarem Farbort bekannt. Dabei wird die Farbtemperatur einer Natriumhochdrucklampe durch Änderung der Impulsleistung zwischen zwei Einstellungen variiert.A lamp with an adjustable color location is already known from EP 607 600. The color temperature of a high-pressure sodium lamp is varied by changing the pulse power between two settings.
Die EP 915 363 beschreibt eine Methode zur Änderung der Farbtemperatur bei einer LCD-Anzeigevorrichtung. Dabei werden mehrere Lichtquellen unterschiedlicher Farbtemperatur entweder einzeln oder zusammen betrieben, so dass ein breiter Bereich von Farbtemperaturen zwischen 5000 und 10000 K abgedeckt werden kann. Allerdings ist diese Lösung aufwendig, da mehrere gleichartige Lichtquellen verwendet werden. Außerdem ist die Einstellung der Farbtemperatur nicht stufenlos regelbar.EP 915 363 describes a method for changing the color temperature of an LCD display device. In this method, several light sources with different color temperatures are operated either individually or together, so that a wide range of color temperatures between 5000 and 10000 K can be covered. However, this solution is complex because several similar light sources are used. In addition, the color temperature setting is not continuously adjustable.
Darstellung der ErfindungDescription of the invention
Es ist Aufgabe der vorliegenden Erfindung, eine Leuchte gemäß dem Oberbegriff des Anspruchs 1 bereitzustellen, bei der sich auf einfache Art und Weise der Farbort und insbesondere auch die Farbtemperatur individuell regeln lässt.It is an object of the present invention to provide a luminaire according to the preamble of claim 1, in which the color location and in particular also the color temperature can be individually controlled in a simple manner.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.This object is achieved by the characterizing features of claim 1. Particularly advantageous embodiments can be found in the dependent claims.
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Die erfindungsgemäße Leuchte kann individuell hinsichtlich Farbtemperatur und Farbort eingestellt werden, wobei diese Größen stufenlos reguliert werden können. Gleichzeitig werden keine anderen Parameter der Lichtquelle verändert.The lamp according to the invention can be individually adjusted in terms of color temperature and color location, whereby these values can be continuously adjusted. At the same time, no other parameters of the light source are changed.
Erfindungsgemäß werden in einer Leuchte mit einem umgebenden Gehäuse einer primären Lichtquelle, die weißes Licht einer gegebenen Lichtfarbe und Farbtemperatur aussendet, mindestens eine, bevorzugt mehrere sekundäre Lichtquellen hinzugefügt. Die primäre Lichtquelle emittiert weißes Licht eines definierten Farbortes, während die sekundäre Lichtquelle Licht eines anderen Farbortes emittiert. Damit ist gemeint, dass sie farbiges Licht oder weißes Licht einer anderen Farbtemperatur oder anderen Lichtfarbe emittiert. Die Intensität der sekundären Lichtquelle ist stufenlos verstellbar, wobei die primäre und die sekundäre Lichtquelle so zusammenwirken, dass der Farbort und insbesondere auch die Farbtemperatur oder Lichtfarbe der von der Leuchte abgegebenen Strahlung sich von dem der primären Lichtquelle unterscheiden kann.According to the invention, in a lamp with a surrounding housing, at least one, preferably several secondary light sources are added to a primary light source that emits white light of a given light color and color temperature. The primary light source emits white light of a defined color location, while the secondary light source emits light of a different color location. This means that it emits colored light or white light of a different color temperature or different light color. The intensity of the secondary light source is continuously adjustable, with the primary and secondary light sources interacting in such a way that the color location and in particular also the color temperature or light color of the radiation emitted by the lamp can differ from that of the primary light source.
Bei den farbiges Licht abstrahlenden sekundären Lichtquellen handelt es sich in einer Ausführungsform bevorzugt um einen Satz von drei sekundären Lichtquellen, die blaues, rotes und grünes Licht abstrahlen. In einer anderen Ausführungsform werden sekundäre Lichtquellen mit einem sichtbaren Spektrum verwendet, deren Anteil langwelliger Strahlung höher als bei der primären Lichtquelle ist. Diese sekundären Lichtquellen können einfarbig (vornehmlich rot) oder auch weiß sein.In one embodiment, the secondary light sources emitting colored light are preferably a set of three secondary light sources that emit blue, red and green light. In another embodiment, secondary light sources with a visible spectrum are used, the proportion of long-wave radiation of which is higher than that of the primary light source. These secondary light sources can be single-colored (primarily red) or white.
Nahezu jeder Farbort in der Farbtafel nach CIE ist dadurch darstellbar, dass das Intensitätsverhältnis zwischen der weißen primären Lichtquelle und der sekundären Lichtquelle verändert wird, vornehmlich indem die Intensität der sekundären Lichtquelle erhöht wird, während die der primären Lichtquelle konstant bleibt. Als primäre Lichtquelle mit weißer Lichtfarbe (warmweiß, neutralweiß, tageslichtweiß) eignet sich eine Entladungslampe mit Niederdruckfüllung (insbesondere Leuchtstofflampe) oder Hochdruckfüllung (insbesondere Metallhalogenidlampe).Almost every color location in the CIE color diagram can be represented by changing the intensity ratio between the white primary light source and the secondary light source, primarily by increasing the intensity of the secondary light source while that of the primary light source remains constant. A discharge lamp with low-pressure filling (especially fluorescent lamp) or high-pressure filling (especially metal halide lamp) is suitable as a primary light source with a white light color (warm white, neutral white, daylight white).
Bevorzugt eignen sich LEDs als sekundäre Lichtquellen, weil sie einfach stufenlos regulierbar sind und wenig Leistung verbrauchen. Insbesondere kann die Farbtemperatur und sogar Lichtfarbe von Leuchtstofflampen als primäre Lichtquelle mit dieser Technik dem persönlichen Empfinden angepasst werden. Entscheidend ist,LEDs are the preferred secondary light sources because they are easy to adjust and consume little power. In particular, the color temperature and even the light color of fluorescent lamps as the primary light source can be adjusted to personal preference using this technology. The decisive factor is
• ··
dass sich der Farbort, evtl. auch die Farbtemperatur oder die üchtfarbe der sekundären Lichtquelle davon unterscheidet.that the color location, possibly also the color temperature or the light color of the secondary light source differs.
Vorteilhaft wird eine möglichst gleichmäßige Mischung der Strahlung von primärer und sekundärer Lichtquelle dadurch erreicht, dass die Leuchte zumindest teilweise indirektes Licht von allen Lichtquellen ausstrahlt. Konkret wird dies dadurch erreicht, dass das direkt emittierte Licht aller Lichtquellen auf ein Umlenkmittel, beispielsweise auf einen Reflektor, Diffusor oder einfach die Innenwandung des Gehäuses der Leuchte trifft und der Strahlengang dadurch verändert wird. Das Licht beider Lichtquellen wird somit besonders effektiv vermischt. Evtl. kann zusätzlich die Lichtaustrittsöffnung der Leuchte mit einem Streumittel, einem Diffusor o.a., versehen sein, der die Öffnung ganz oder nur teilweise abdeckt.The most even possible mixture of radiation from the primary and secondary light sources is advantageously achieved by the lamp emitting at least some indirect light from all light sources. In concrete terms, this is achieved by the directly emitted light from all light sources hitting a deflection device, for example a reflector, diffuser or simply the inner wall of the lamp's housing, and the beam path is thereby changed. The light from both light sources is thus mixed particularly effectively. The light exit opening of the lamp can also be provided with a scattering device, a diffuser or similar, which covers the opening completely or only partially.
Die beiden verschiedenen Lichtquellen können vorteilhaft u.U. mit einem einzigen speziellen Vorschaltgerät angesteuert werden, insbesondere bei Verwendung einer Leuchtstofflampe in Kombination mit mehreren LEDs.The two different light sources can, under certain circumstances, be advantageously controlled with a single special ballast, particularly when using a fluorescent lamp in combination with several LEDs.
Insbesondere kann die Farbtemperatur einer Leuchte gemäß der vorliegenden Erfindung erniedrigt werden, indem die sekundäre Lichtquelle einen höheren Anteil langwelligen Lichts (> 550 nm) als die primäre Lichtquelle besitzt. Insbesondere kann dafür der Rotanteil höher sein oder sogar ausschließlich verwendet werden (rote LED).In particular, the color temperature of a luminaire according to the present invention can be lowered by the secondary light source having a higher proportion of long-wave light (> 550 nm) than the primary light source. In particular, the red component can be higher or even used exclusively (red LED).
Figurencharacters
Im folgenden soll die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert werden. Es zeigen:The invention will be explained in more detail below using several exemplary embodiments. They show:
Figur 1 eine Leuchte, im SchnittFigure 1 a lamp, in section
Figur 2 eine Draufsicht der Leuchte aus Figur 1Figure 2 a top view of the luminaire from Figure 1
Figur 3 ein weiteres Ausführungsbeispiel einer Leuchte im SchnittFigure 3 shows another embodiment of a luminaire in section
Figur 1 zeigt eine Leuchte 1, bestehend aus einem Gehäuse 2 mit einer Oberwand 3, zwei Seitenwänden 4 und einer Unterwand 5 sowie zwei Seitenwänden (nicht sichtbar). Die Seitenwände sind schräg an die Oberwand 3 angesetzt, die Unter-Figure 1 shows a lamp 1, consisting of a housing 2 with a top wall 3, two side walls 4 and a bottom wall 5 as well as two side walls (not visible). The side walls are attached at an angle to the top wall 3, the bottom
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wand 5 besitzt eine zentrale Lichtaustrittsöffnung 7, die durch eine Diffusorplatte 8 abgeschlossen ist. Im Inneren des Gehäuses 2 ist eine langgestreckte Leuchtstofflampe 6 an einer Halterung 11 untergebracht, deren Licht vor dem direkten Austritt durch die Öffnung 7 durch einen im Querschnitt V-förmigen Reflektor 9 geschützt ist. Das weiße Licht der als primäre Lichtquelle dienenden Leuchtstofflampe wird über die Wände des Gehäuses zur Öffnung 7 gelenkt.wall 5 has a central light exit opening 7, which is closed off by a diffuser plate 8. Inside the housing 2, an elongated fluorescent lamp 6 is housed on a holder 11, the light of which is protected from directly exiting through the opening 7 by a reflector 9 with a V-shaped cross section. The white light of the fluorescent lamp, which serves as the primary light source, is directed via the walls of the housing to the opening 7.
Außerdem sind, wie die Draufsicht von unten zeigt (Figur 2) an der Unterwand 5 jeweils drei LEDs 10 zu beiden Seiten der Leuchtstofflampe 6 angebracht. Je eine Reihe LEDs besteht aus einem Satz von drei Farben (rot, grün, blau). Die Intensitäten dieser LEDs lassen sich stufenlos regulieren. Dementsprechend lassen sich auch der Farbort und die Farbtemperatur der Leuchte stufenlos regulieren. Die Farbmischung ist hier besonders effektiv, da das direkt emittierte Licht mehrfach an den als Reflektoren wirkenden Wänden umgelenkt wird und dann durch die Diffusorplatte hindurchtritt. Nachteilig ist allerdings, dass bei jeder Reflexion Verluste auftreten.In addition, as the view from below shows (Figure 2), three LEDs 10 are attached to the bottom wall 5 on either side of the fluorescent lamp 6. Each row of LEDs consists of a set of three colors (red, green, blue). The intensities of these LEDs can be continuously regulated. Accordingly, the color location and color temperature of the lamp can also be continuously regulated. The color mixing is particularly effective here, as the directly emitted light is redirected several times by the walls acting as reflectors and then passes through the diffuser plate. The disadvantage, however, is that losses occur with each reflection.
In einem weiteren Ausführungsbeispiel werden statt drei LEDs ein ganzes Band von LEDs verwendet (gestrichelt dargestellt), die abwechselnd die drei Farben rot, grün, blau besitzen. Die einzelnen Farben lassen sich getrennt ansteuern.In another embodiment, instead of three LEDs, a whole band of LEDs is used (shown in dashed lines), which alternate in the three colors red, green, and blue. The individual colors can be controlled separately.
Ein weiteres Ausführungsbeispiel zeigt Figur 3. Hier ist die gesamte Unterwand 15 als Lichtaustrittsöffnung konzipiert, die mit einer Diffusorplatte 18 abgeschlossen ist.Another embodiment is shown in Figure 3. Here, the entire bottom wall 15 is designed as a light exit opening, which is closed off with a diffuser plate 18.
Die LEDs 20 sind hier an der Oberwand 13 des Gehäuses 12 befestigt. Das Licht der primären und sekundären Lichtquellen wird hier lediglich durch den Diffusor 18 vermischt. Hier ist die primäre Lichtquelle eine lineare Leuchtstofflampe mit einer Farbtemperatur von 4500 K (Lichtfarbe neutralweiß). Die sekundäre Lichtquelle besteht aus zwei parallel zur Leuchtstofflampe angeordneten Lichtbändern mit jeweils 64 roten LEDs. Mit diesen kann die Farbtemperatur der Leuchte stufenlos auf bis zu 3800 K (Lichtfarbe neutralweiß) abgesenkt werden.The LEDs 20 are attached to the top wall 13 of the housing 12. The light from the primary and secondary light sources is only mixed by the diffuser 18. Here, the primary light source is a linear fluorescent lamp with a color temperature of 4500 K (light color neutral white). The secondary light source consists of two light strips arranged parallel to the fluorescent lamp, each with 64 red LEDs. With these, the color temperature of the lamp can be continuously reduced to as low as 3800 K (light color neutral white).
In einem anderen Ausführungsbeispiel hat die Leuchtstofflampe eine Farbtemperatur von 4100 K (Lichtfarbe neutralweiß) bei einem Farbort von 0,375/0,39. Sie kann durch zwei Lichtbänder von roten LEDs (Peakwellenlänge 615 nm) mit Farbort 0,655/0,34 auf eine Farbtemperatur bis zu ca. 3250 K (Lichtfarbe warmweiß) abgesenkt werden, entsprechend einem Farbort von 0,42/0,385.In another embodiment, the fluorescent lamp has a color temperature of 4100 K (light color neutral white) with a color location of 0.375/0.39. It can be reduced to a color temperature of up to approx. 3250 K (light color warm white) by two light bands of red LEDs (peak wavelength 615 nm) with a color location of 0.655/0.34, corresponding to a color location of 0.42/0.385.
Claims (6)
Priority Applications (1)
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DE20007134U DE20007134U1 (en) | 2000-04-18 | 2000-04-18 | Luminaire with adjustable color location |
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DE20007134U DE20007134U1 (en) | 2000-04-18 | 2000-04-18 | Luminaire with adjustable color location |
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Cited By (35)
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WO2003019072A1 (en) | 2001-08-23 | 2003-03-06 | Yukiyasu Okumura | Color temperature-regulable led light |
WO2003059013A1 (en) * | 2002-01-10 | 2003-07-17 | Patent - Treuhand - Gesellschaft für Elektrische Glühlampen mbH | Lamp |
WO2004011846A1 (en) | 2002-07-25 | 2004-02-05 | Philips Intellectual Property & Standards Gmbh | Lamp system with green-blue gas-discharge lamp and yellow-red led |
WO2004036618A1 (en) * | 2002-10-14 | 2004-04-29 | Philips Intellectual Property & Standards Gmbh | Luminous body for generating white light |
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US6840646B2 (en) * | 2001-02-19 | 2005-01-11 | Koninklijke Philips Electronics N.V. | Illumination system and display device |
WO2005012785A1 (en) * | 2003-08-05 | 2005-02-10 | Christian Bartenbach | Lamp comprising at least two light sources |
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