JP2013084544A - Luminaire, lighting fixture, and lighting control system - Google Patents

Luminaire, lighting fixture, and lighting control system Download PDF

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Publication number
JP2013084544A
JP2013084544A JP2012003976A JP2012003976A JP2013084544A JP 2013084544 A JP2013084544 A JP 2013084544A JP 2012003976 A JP2012003976 A JP 2012003976A JP 2012003976 A JP2012003976 A JP 2012003976A JP 2013084544 A JP2013084544 A JP 2013084544A
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Japan
Prior art keywords
rendering index
color rendering
color temperature
light source
lighting
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JP2012003976A
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Japanese (ja)
Inventor
Tomoko Ishiwatari
朋子 石渡
Kazunori Yashiro
和徳 八代
Yoko Noguchi
瑶子 野口
Kenji Takahashi
健治 高橋
Fumishige Iwata
文重 岩田
Hitoshi Kono
仁志 河野
Shigehisa Kawazuru
滋久 川鶴
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Priority to JP2012003976A priority Critical patent/JP2013084544A/en
Priority to US13/565,601 priority patent/US20130076262A1/en
Priority to EP12179043A priority patent/EP2574148A2/en
Priority to CN2012103167110A priority patent/CN103017014A/en
Publication of JP2013084544A publication Critical patent/JP2013084544A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a luminaire, lighting fixture, and a lighting control system which can create a wide variety of lighting environments.SOLUTION: A luminaire 10 comprises first to fourth light sources 11 to 14 and a control unit 30. The first light source 11 has a relatively high correlation color temperature and a relatively high general color rendering index. The second light source 12 has a relatively high correlation color temperature and a relatively low general color rendering index. The third light source 13 has a relatively low correlation color temperature and a relatively high general color rendering index. The fourth light source 14 has a relatively low correlation color temperature and a relatively low general color rendering index. The control unit 30 controls at least two among the luminous flux of each light source, the correlation color temperature, and the general color rendering index.

Description

本発明の実施形態は、各種の照明環境を造り出すことが可能な照明装置、照明器具およ
び照明制御システムに関する。 Embodiments described herein relate generally to a lighting device, a lighting fixture, and a lighting control system capable of creating various lighting environments.

各種の照明環境を造り出すため、一般的には蛍光灯の白い光や電球の暖かい光など、光
色が異なりかつ調光可能な複数の光源を備えることにより、光色と明るさを調整すること
が行われている。 To create various lighting environments, generally adjust the light color and brightness by providing multiple light sources with different light colors, such as white light from fluorescent lights and warm light from light bulbs. Has been done.

特開２００１−１８４９１０号公報JP 2001-184910 A 特開２００８−３００１１７号公報JP 2008-300117 A

しかしながら、各種の照明環境を演出するためには、例えば、店で選んだ色の服で外を
歩いた場合に、思っていた色と違って見えるようなことが生じないように、色の見え方（
演色性）も良好にすることが必要である。このため、光色と明るさを制御できるとともに
、色の見え方を如何にして制御し、各種多様な照明環境を造り出すかが重要な課題になっ
ている。 However, in order to produce various lighting environments, for example, when you walk outside with the clothes of the color selected in the store, the color appearance does not appear different from the color you expected. Direction (
It is also necessary to improve color rendering properties. For this reason, it is an important issue to be able to control the light color and brightness and how to control the appearance of the color to create various lighting environments.

本発明は、上記の課題に鑑みなされたもので、各種多様な照明環境を造り出すことが可
能な照明装置、照明器具および照明制御システムを提供しようとするものである。 The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lighting device, a lighting fixture, and a lighting control system capable of creating various various lighting environments.

本発明の実施形態における照明装置は、第１〜第４光源と制御部を具備する。第１光源
は、相対的に相関色温度が高く、相対的に平均演色評価数が高い。第２光源は、相対的に
相関色温度が高く、相対的に平均演色評価数が低い。第３光源は、相対的に相関色温度が
低く、相対的に平均演色評価数が高い。第４光源は、相対的に相関色温度が低く、相対的
に平均演色評価数が低い。制御部は、前記各光源の光束、相関色温度、平均演色評価数の
少なくとも２つを制御する。 The illuminating device in embodiment of this invention comprises a 1st-4th light source and a control part. The first light source has a relatively high correlated color temperature and a relatively high average color rendering index. The second light source has a relatively high correlated color temperature and a relatively low average color rendering index. The third light source has a relatively low correlated color temperature and a relatively high average color rendering index. The fourth light source has a relatively low correlated color temperature and a relatively low average color rendering index. The control unit controls at least two of the light flux of each light source, the correlated color temperature, and the average color rendering index.

本発明によれば、各種多様な照明環境を造り出すことが可能な照明装置、照明器具およ
び照明制御システムを提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the illuminating device, lighting fixture, and lighting control system which can create various various lighting environments can be provided.

本発明の実施形態である照明装置の発光モジュールを示し、（ａ）は正面図 、（ｂ）は裏面図。The light emitting module of the illuminating device which is embodiment of this invention is shown, (a) is a front view, (b) is a back view. 同じく照明装置の光源を拡大して示す断面図。Sectional drawing which similarly expands and shows the light source of an illuminating device. 同じく照明装置における各光源の分光分布図。The spectral distribution figure of each light source in an illuminating device. 同じく照明装置の発光モジュールを、一部を拡大して示す正面図。The front view which similarly shows the light emitting module of an illuminating device partially expanded. 同じく照明装置の電気回路図。Similarly, an electrical circuit diagram of the lighting device. 同じく照明装置における器具光束を一定とし、相関色温度３５００Ｋで平均 演色評価数Ｒａ７０〜９５における各光源の調光率を示すグラフ。The graph which similarly shows the light control rate of each light source in the relative color temperature of 3500K and average color rendering evaluation Ra70-95 with the fixture light beam in an illuminating device constant. 同じく照明装置における器具光束を一定とし、平均演色評価数Ｒａ８０で相 関色温度２８５０Ｋ〜５０００Ｋにおける５０Ｋ刻みの各光源の調光率を示すグ ラフ。Similarly, a graph showing the dimming rate of each light source in increments of 50K at a correlation color temperature of 2850K to 5000K with an average color rendering index Ra80, with the fixture luminous flux in the lighting device being constant. 同じく照明装置におけるＪＩＳ演色評価試験色の色差ΔＥ*ａｂを示すグラフで、（ａ）は器具光束を一定とし、平均演色評価数Ｒａ８０で相関色温度を５０Ｋ刻みで変化させたときの、ＪＩＳ演色評価試験色Ｎｏ．１〜Ｎｏ．４の色差ΔＥ*ａｂを示すグラフ、（ｂ）は器具光束を一定とし、平均演色評価数Ｒａ８０で相関色温度を５０Ｋ刻みで変化させたときの、ＪＩＳ演色評価試験色Ｎｏ．５〜Ｎｏ．８の色差ΔＥ*ａｂを示すグラフ、（ｃ）は器具光束を一定とし、平均演色評価数Ｒａ８０で相関色温度を１００Ｋ刻みで変化させたときの、ＪＩＳ演色評価試験色Ｎｏ．１〜Ｎｏ．４の色差ΔＥ*ａｂを示すグラフ、（ｄ）は器具光束を一定とし、平均演色評価数Ｒａ８０で相関色温度を１００Ｋ刻みで変化させたときの、ＪＩＳ演色評価試験色Ｎｏ．５〜Ｎｏ．８の色差ΔＥ*ａｂを示すグラフ。Similarly, a graph showing the color difference ΔE * ab of the JIS color rendering evaluation test color in the lighting device. (A) is a JIS color rendering when the instrument luminous flux is constant and the correlated color temperature is changed in increments of 50K with an average color rendering index Ra80. Evaluation test color No. 1-No. 4 is a graph showing the color difference ΔE * ab of FIG. 4, (b) shows the JIS color rendering evaluation test color No. when the luminous flux of the instrument is constant and the correlated color temperature is changed in increments of 50K with an average color rendering index Ra80. 5-No. 8 is a graph showing the color difference ΔE * ab of FIG. 8, (c) is a JIS color rendering evaluation test color No. when the instrument luminous flux is constant and the correlated color temperature is changed in increments of 100K with an average color rendering index Ra80. 1-No. 4 is a graph showing the color difference ΔE * ab of FIG. 4, and (d) shows the JIS color rendering evaluation test color No. when the instrument light flux is constant and the correlated color temperature is changed in increments of 100K with an average color rendering index Ra80. 5-No. 8 is a graph showing a color difference ΔE * ab of 8. 同じく照明器具を示し、（ａ）は一部を切り欠いて示す斜視図、（ｂ）はベ ース体の正面図。The lighting fixture is similarly shown, (a) is a perspective view with a part cut away, and (b) is a front view of the base body. 同じく照明制御システムを示し、照明器具が設置された天井を示す図。The figure which similarly shows a lighting control system and shows the ceiling in which the lighting fixture was installed. 同じく照明装置の変形例における発光モジュールを、一部を拡大して示す 正面図。Similarly, the front view which expands and shows a part of the light emitting module in the modification of an illuminating device.

以下、本発明の実施形態について図に従い説明する。本実施形態は、各種多様な照明環
境を造り出すことが可能な照明ショールームに設置される照明制御システム。この照明制
御システムに用いられる照明装置および照明器具を構成するもので、先ず照明装置の構成
につき説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present embodiment is a lighting control system installed in a lighting showroom capable of creating various lighting environments. The lighting device and the lighting fixture used in this lighting control system will be described. First, the configuration of the lighting device will be described.

本実施形態の照明装置１０は、発光ダイオード（以下「ＬＥＤ」と称す）を光源とする
照明装置で、図１（ａ）（ｂ）に示すように、相対的に相関色温度が高く、相対的に平均
演色評価数Ｒａが高い第１光源１１と；相対的に相関色温度が高く、相対的に平均演色評
価数Ｒａが低い第２光源１２と；相対的に相関色温度が低く、相対的に平均演色評価数Ｒ
ａが高い第３光源１３と；相対的に相関色温度が低く、相対的に平均演色評価数Ｒａが低
い第４光源１４と；前記各光源の光束、相関色温度、平均演色評価数Ｒａを制御する制御
部３０で構成する。 The lighting device 10 of the present embodiment is a lighting device using a light emitting diode (hereinafter referred to as “LED”) as a light source, and has a relatively high correlated color temperature as shown in FIGS. A first light source 11 having a relatively high average color rendering index Ra; a second light source 12 having a relatively high correlated color temperature and a relatively low average color rendering index Ra; Average color rendering index R
a third light source 13 having a high a; a fourth light source 14 having a relatively low correlated color temperature and a relatively low average color rendering index Ra; and a luminous flux, a correlated color temperature, and an average color rendering index Ra of each light source. It is comprised by the control part 30 to control.

上記の第１〜第４光源１１〜１４は、本実施形態では、次のように構成した。   Said 1st-4th light sources 11-14 were comprised as follows in this embodiment.

第１光源１１は、青色発光ダイオードと、青色発光ダイオードによって励起される蛍光
体を有し、相関色温度が５０００Ｋ以上、本実施形態では約５０００Ｋ、平均演色評価数
Ｒａが９０以上、本実施形態では約９２の第１のＬＥＤで構成した。 The first light source 11 includes a blue light-emitting diode and a phosphor excited by the blue light-emitting diode. The correlated color temperature is 5000 K or higher, in this embodiment, about 5000 K, and the average color rendering index Ra is 90 or higher. Then, it comprised with about 92 1st LED.

第２光源１２は、青色発光ダイオードと、青色発光ダイオードによって励起される蛍光
体を有し、相関色温度が５０００Ｋ以上、本実施形態では約５０００Ｋ、平均演色評価数
Ｒａが７０以下、本実施形態では約７０の第２のＬＥＤで構成した。 The second light source 12 includes a blue light emitting diode and a phosphor excited by the blue light emitting diode. The correlated color temperature is 5000 K or more, in this embodiment, about 5000 K, and the average color rendering index Ra is 70 or less. Then, it comprised with about 70 2nd LED.

第３光源１３は、青色発光ダイオードと、青色発光ダイオードによって励起される蛍光
体を有し、相関色温度が３０００Ｋ以下、本実施形態では約２７００Ｋ、平均演色評価数
Ｒａが９０以上、本実施形態では約９２の第３のＬＥＤで構成した。 The third light source 13 includes a blue light-emitting diode and a phosphor excited by the blue light-emitting diode. The correlated color temperature is 3000 K or less, in this embodiment, about 2700 K, and the average color rendering index Ra is 90 or more. Then, it comprised with about 92 3rd LED.

第４光源１４は、青色発光ダイオードと、青色発光ダイオードによって励起される蛍光
体を有し、相関色温度が３０００Ｋ以下、本実施形態では約２７００Ｋ、平均演色評価数
Ｒａが７０以下、本実施形態では約６７の第４のＬＥＤで構成した。 The fourth light source 14 includes a blue light emitting diode and a phosphor excited by the blue light emitting diode. The correlated color temperature is 3000 K or less, in this embodiment, about 2700 K, and the average color rendering index Ra is 70 or less. Then, it consisted of about 67 4th LED.

そして、上記第１〜第４の各光源１１〜１４は、ＳＭＤ（Ｓｕｒｆａｃｅ Ｍｏｕｎｔ
Ｄｅｖｉｃｅ）タイプのＬＥＤからなり、図２に示すように、青色ＬＥＤチップ１５が
回路パターンを有する基板１６上に実装されている。なお、ＬＥＤは、基板に直接実装さ
れる複数個のＬＥＤチップおよびこのＬＥＤチップから照射される光により励起される蛍
光体を含む樹脂で封止して構成されたＣＯＢ（Ｃｈｉｐ ｏｎ Ｂｏａｒｄ）タイプであ
ってもよい。 And each said 1st-4th light source 11-14 is SMD (Surface Mount).
Device) type LED, and as shown in FIG. 2, a blue LED chip 15 is mounted on a substrate 16 having a circuit pattern. The LED is a COB (Chip on Board) type configured by sealing with a resin including a plurality of LED chips directly mounted on a substrate and a phosphor excited by light emitted from the LED chips. There may be.

基板１６は、放熱性と剛性を有するアルミニウム等からなる矩形状をなす平板が用いら
れ、基板１６上に電気絶縁層１７を介して陰極側と陽極側の回路パターン１８がそれぞれ
形成されている。回路パターン１８は、銅（Ｃｕ）等で構成されている。 The substrate 16 is a rectangular flat plate made of aluminum or the like having heat dissipation and rigidity, and circuit patterns 18 on the cathode side and the anode side are formed on the substrate 16 with an electrical insulating layer 17 interposed therebetween. The circuit pattern 18 is made of copper (Cu) or the like.

そして、青色ＬＥＤチップ１５の底面電極が一方の電極側の回路パターン１８に電気的
に接続され、上面電極が他方の電極側の回路パターン１８に対して、金線等で構成された
ボンディングワイヤ１９を介して電気的に接続されている。また、基板１６上には樹脂製
のフレーム２０が設けられ、フレームには凹部２０ａが形成されている。フレーム２０は
、例えば白色のＰＢＴ（ポリブチレンテレフタレート）等の合成樹脂で構成され、凹部２
０ａ内の中央部に青色ＬＥＤチップ１５が配置されて収容される。 Then, the bottom electrode of the blue LED chip 15 is electrically connected to the circuit pattern 18 on one electrode side, and the bonding electrode 19 is formed of a gold wire or the like on the upper electrode on the circuit pattern 18 on the other electrode side. It is electrically connected via. Further, a resin frame 20 is provided on the substrate 16, and a recess 20a is formed in the frame. The frame 20 is made of, for example, a synthetic resin such as white PBT (polybutylene terephthalate).
The blue LED chip 15 is disposed and accommodated in the central portion in 0a.

そして、青色ＬＥＤチップ１５が収容された凹部２０ａ内に蛍光体をシリコーン樹脂や
エポキシ樹脂等の透明樹脂に混合して分散させた蛍光体含有樹脂が塗布または充填されて
蛍光体含有樹脂層２１が形成され、青色ＬＥＤチップ１５は、この蛍光体含有樹脂層２１
によって覆われて構成される。そして、青色ＬＥＤチップ１５から放射される青色光と、
青色ＬＥＤチップ１５によって蛍光体が励起されて放射される光とが混合して白色の光を
放射する。 The phosphor-containing resin layer 21 is formed by applying or filling a phosphor-containing resin in which a phosphor is mixed and dispersed in a transparent resin such as a silicone resin or an epoxy resin in the recess 20a in which the blue LED chip 15 is accommodated. The blue LED chip 15 formed is formed of the phosphor-containing resin layer 21.
Covered by and composed. And the blue light radiated | emitted from the blue LED chip 15,
The phosphor is excited by the blue LED chip 15 and mixed with the emitted light to emit white light.

上述した第１〜第４光源１１〜１４は、それぞれ上述した図２と同様な構成をなしてい
るが、蛍光体含有樹脂層２１に含有される蛍光体がそれぞれ異なっている。すなわち、目
的とする性能を有する蛍光体を選択することによって、必要な相関色温度および平均演色
評価数Ｒａを有する光を得るように構成される。 The first to fourth light sources 11 to 14 described above have the same configuration as that of FIG. 2 described above, but the phosphors contained in the phosphor-containing resin layer 21 are different from each other. That is, it is configured to obtain light having a necessary correlated color temperature and an average color rendering index Ra by selecting a phosphor having a target performance.

すなわち、第１光源１１は、図３のグラフ中、曲線１１（細点線）で示すように、ピー
ク波長約４４０ｎｍ近辺の範囲にある青色系で、相関色温度が５０００Ｋ以上、本実施形
態では約５０００Ｋ、平均演色評価数Ｒａが９０以上、本実施形態では、Ｒａ約９２の光
を発光する。 That is, the first light source 11 is a blue system having a peak wavelength in the vicinity of about 440 nm as shown by a curve 11 (thin dotted line) in the graph of FIG. 5000 K, average color rendering index Ra is 90 or more, and in this embodiment, about 92 Ra is emitted.

第２光源１２は、図３のグラフ中、曲線１２（太実線）で示すように、ピーク波長が約
４４０ｎｍ近辺の範囲にある青色系で、相関色温度が５０００Ｋ以上、本実施形態では約
５０００Ｋ、平均演色評価数Ｒａが７０以下、本実施形態ではＲａ約７０の光を発光する
。 The second light source 12 is a blue system having a peak wavelength in the range of about 440 nm as shown by a curve 12 (thick solid line) in the graph of FIG. 3, and the correlated color temperature is 5000 K or more, and in this embodiment, about 5000 K. The average color rendering index Ra is 70 or less, and in this embodiment, about 70 Ra is emitted.

第３光源１３は、図３のグラフ中、曲線１３（太点線）で示すように、ピーク波長が約
６４０ｎｍ近辺の範囲にある赤色系で、相関色温度が３０００Ｋ以下、本実施形態では約
２７００Ｋ、平均演色評価数Ｒａが９０以上、本実施形態ではＲａ約９２の光を発光する
。 The third light source 13 is a red system having a peak wavelength in the range of about 640 nm as shown by a curve 13 (thick dotted line) in the graph of FIG. 3, and the correlated color temperature is 3000 K or less, and in this embodiment, about 2700 K. The average color rendering index Ra is 90 or more, and in this embodiment, about 92 Ra is emitted.

第４光源１４は、図３のグラフ中、曲線１４（細実線）に示すように、ピーク波長が約
５８０ｎｍ近辺の範囲にある黄色系で、相関色温度が３０００Ｋ以下、本実施形態では約
２７００Ｋ、平均演色評価数Ｒａが７０以下、本実施形態ではＲａ約６７の光を発光する
。 As shown by the curve 14 (thin solid line) in the graph of FIG. 3, the fourth light source 14 is a yellow system having a peak wavelength in the range of about 580 nm and a correlated color temperature of 3000 K or less, and in this embodiment, about 2700 K. The average color rendering index Ra is 70 or less, and in this embodiment, about 67 Ra is emitted.

上記に構成された第１〜第４の各光源１１〜１４は、それぞれを構成する第１〜第４の
ＬＥＤが、図１（ａ）（ｂ）に示すように、長方形状をなす基板１６に対し、第１〜第４
の各ＬＥＤが配置される。各光源（第１〜第４のＬＥＤ各１つ、すなわち、４つが１セッ
ト）は、１２セットが直列に接続されて用いられている。そして、第１〜第４の各ＬＥＤ
が所定の略等しい間隔を有し、かつ、基板１６の長手方向に沿って略平行に列をなすよう
に配置され、長方形状をなす発光モジュール２２が構成される。上記に構成された本実施
形態の発光モジュール２２の長さ寸法Ｌ１は約２５６ｍｍ、幅寸法Ｗ１は約８４ｍｍであ
る。 Each of the first to fourth light sources 11 to 14 configured as described above includes a substrate 16 in which the first to fourth LEDs constituting each of them form a rectangular shape as shown in FIGS. In contrast, first to fourth
Each LED is arranged. Each light source (one each of the first to fourth LEDs, that is, one set of four) is used with 12 sets connected in series. And each 1st-4th LED
Are arranged so as to form a row substantially in parallel along the longitudinal direction of the substrate 16, thereby forming a light emitting module 22 having a rectangular shape. The length dimension L1 of the light emitting module 22 of the present embodiment configured as described above is about 256 mm, and the width dimension W1 is about 84 mm.

また、本実施形態では、各光源１１〜１４は、次のように配置されている。すなわち、
図４に一部を拡大して示すように、長方形状をなす発光モジュール２２を、図の縦方向に
８個単位で見たとき、図中点線枠のグループで示すように、縦に４個の「低Ｒａ」と縦に４個の「高Ｒａ」の各ＬＥＤチップが長手方向に沿って交互になるように配置した。この配置によって、「低Ｒａ」と「高Ｒａ」のＬＥＤチップのグループ、すなわち、略同様の平均演色評価数Ｒａを有するグループが片寄ることがなく、各光源によって造り出された目的の平均演色評価数Ｒａによる略均一な照明を行うことが可能になる。なお、図４中「低Ｒａ」は、平均演色評価数Ｒａが低いＬＥＤチップを示し、「高Ｒａ」は、平均演色評価数Ｒａが高いＬＥＤチップを示す。「Ｌ」は、相関色温度が低いＬＥＤチップを示し、「Ｗ」は、相関色温度が高いＬＥＤチップを示す。 Moreover, in this embodiment, each light source 11-14 is arrange | positioned as follows. That is,
As shown in a partially enlarged view in FIG. 4, when the light emitting modules 22 having a rectangular shape are viewed in units of eight in the vertical direction of the figure, as shown by a group of dotted frames in the figure, four vertically. The “Low Ra” and the four “High Ra” LED chips are arranged alternately along the longitudinal direction. With this arrangement, a group of “low Ra” and “high Ra” LED chips, that is, a group having a substantially similar average color rendering index Ra is not offset, and the target average color rendering evaluation created by each light source. It becomes possible to perform substantially uniform illumination by the number Ra. In FIG. 4, “low Ra” indicates an LED chip having a low average color rendering index Ra, and “high Ra” indicates an LED chip having a high average color rendering index Ra. “L” indicates an LED chip having a low correlated color temperature, and “W” indicates an LED chip having a high correlated color temperature.

次に、制御部３０は、上記に構成された各光源１１〜１４の光束、相関色温度、平均演
色評価数Ｒａを制御するもので、図５の電気回路図に示すように、１２個のＬＥＤが直列
に接続された第１〜第４光源１１〜１４個々に点灯回路３１が設けられ、この各点灯回路
３１と電源Ｅとの間に制御部３０が設けられる。制御部３０は、マイクロコンピュータ等
で構成され、光束を制御することによって相関色温度、平均演色評価数Ｒａの各要素をそ
れぞれ制御し、さらに光出力を制御して、各種多様な照明環境を造り出す。 Next, the control unit 30 controls the luminous flux, the correlated color temperature, and the average color rendering index Ra of each of the light sources 11 to 14 configured as described above. As shown in the electric circuit diagram of FIG. A lighting circuit 31 is provided for each of the first to fourth light sources 11 to 14 in which LEDs are connected in series, and a controller 30 is provided between each of the lighting circuits 31 and the power source E. The control unit 30 is configured by a microcomputer or the like, and controls each element of the correlated color temperature and the average color rendering index Ra by controlling the light flux, and further controls the light output to create various lighting environments. .

例えば、相関色温度３５００Ｋ（電球色近傍）における色の見え方を良好にするために
、平均演色評価数の高いＲａ９５の照明環境を得るためには、次のように制御する。 For example, in order to obtain a Ra95 illumination environment having a high average color rendering index in order to improve the appearance of color at a correlated color temperature of 3500 K (near the light bulb color), the following control is performed.

図６に示すグラフは、器具光束を４０００ｌｍ一定とした場合、相関色温度３５００Ｋ
で平均演色評価数Ｒａ７０〜９５における各光源１１〜１４の調光率、すなわち、光束比
（％）を表したグラフで、平均演色評価数Ｒａ５刻みにおける各光源１１〜１４の光束比
（％）との関係を示したもので、このグラフから明らかなように、
相関色温度が５０００Ｋ、平均演色評価数Ｒａが９２の第１のＬＥＤからなる第１光源
１１（曲線１１）の光束比を約４３％、
相関色温度が５０００Ｋ、平均演色評価数Ｒａが７０の第２のＬＥＤからなる第２光源
１２（曲線１２）の光束比を約０％、
相関色温度が２７００Ｋ、平均演色評価数Ｒａが９２の第３のＬＥＤからなる第３光源
１３（曲線１３）の光束比を約５２％
相関色温度が２７００Ｋ、平均演色評価数Ｒａが６７の第４のＬＥＤからなる第４光源
１４（曲線１４）の光束比を約５％に、
それぞれを調光制御することによって、相関色温度３５００Ｋにおける平均演色評価数
Ｒａ９５の照明環境を造りだすことができる。 The graph shown in FIG. 6 shows a correlated color temperature of 3500 K when the instrument light flux is constant 4000 lm.
Is a graph showing the dimming rate of each light source 11 to 14 in the average color rendering index Ra70 to 95, that is, the luminous flux ratio (%), and the luminous flux ratio (%) of each light source 11 to 14 in the average color rendering index Ra5 increments. As you can see from this graph,
The luminous flux ratio of the first light source 11 (curve 11) composed of the first LED having a correlated color temperature of 5000K and an average color rendering index Ra of 92 is about 43%,
The luminous flux ratio of the second light source 12 (curve 12) composed of the second LED having a correlated color temperature of 5000K and an average color rendering index Ra of 70 is about 0%,
The luminous flux ratio of the third light source 13 (curve 13) composed of the third LED having a correlated color temperature of 2700K and an average color rendering index Ra of 92 is about 52%.
The luminous flux ratio of the fourth light source 14 (curve 14) comprising the fourth LED having a correlated color temperature of 2700K and an average color rendering index Ra of 67 is set to about 5%.
By performing dimming control of each, it is possible to create an illumination environment having an average color rendering index Ra95 at a correlated color temperature of 3500K.

同様にして、平均演色評価数Ｒａ８５の照明環境は、第１光源１１の光束比を約３６％
、第２光源１２の光束比を約５％、第３光源１３の光束比を約２２％、第４光源１４の光
束比を約３６％に、それぞれ調光制御することによって造り出すことができる。同様にし
て、各光源１１〜１４の各光束比を調光制御することによって、器具光束を一定とし相関
色温度３５００Ｋ（電球色近辺）における平均演色評価数Ｒａが約７０〜約９５の範囲の
照明環境を造り出すことができる。 Similarly, the illumination environment having an average color rendering index Ra85 has a luminous flux ratio of the first light source 11 of about 36%.
The light source ratio of the second light source 12 is about 5%, the light source ratio of the third light source 13 is about 22%, and the light source ratio of the fourth light source 14 is about 36%. Similarly, the light flux ratio of each of the light sources 11 to 14 is dimmed and controlled so that the fixture luminous flux is constant and the average color rendering index Ra at a correlated color temperature of 3500 K (near the light bulb color) is in the range of about 70 to about 95. A lighting environment can be created.

さらに、上記と同様にして、図６のグラフに示すように、器具光束を一定とし、相関色
温度、例えば２８５０Ｋ〜５０００Ｋにおける各光源１１〜１４の光束比（％）、すなわ
ち調光率と平均演色評価数Ｒａの関係を抽出することによって、各種の相関色温度におけ
る各種の平均演色評価数Ｒａを有する多様な照明環境を造り出すことが可能になる。しか
も、これら照明環境は各グラフの曲線に沿って連続的にかつ任意に造り出すことも可能に
なる。 Further, in the same manner as described above, as shown in the graph of FIG. 6, the luminous flux of the instrument is constant, the luminous flux ratio (%) of each of the light sources 11 to 14 at the correlated color temperature, for example, 2850 K to 5000 K, that is, the dimming rate and the average By extracting the relationship between the color rendering index Ra, it is possible to create various lighting environments having various average color rendering indices Ra at various correlated color temperatures. Moreover, these lighting environments can be created continuously and arbitrarily along the curve of each graph.

また、例えば平均演色評価数Ｒａが８０で、相関色温度５０００Ｋ（昼白色近傍）の照
明環境を得るためには、次のように制御する。 For example, in order to obtain an illumination environment having an average color rendering index Ra of 80 and a correlated color temperature of 5000 K (near white), the following control is performed.

図７に示すグラフは、器具光束を４０００ｌｍ一定とした場合、平均演色評価数Ｒａ８０で相関色温度２８５０Ｋ〜５０００Ｋにおける各光源１１〜１４の調光率、すなわち、光束比（％）を表したグラフで、相関色温度５０Ｋ刻みにおける各光源１１〜１４の光束比（％）との関係を示したもので、このグラフから明らかなように、
相関色温度が５０００Ｋ、平均演色評価数Ｒａが９２の第１のＬＥＤからなる第１光源
１１（曲線１１）の光束比を約４０％、
相関色温度が５０００Ｋ、平均演色評価数Ｒａが７０の第２のＬＥＤからなる第２光源
１２（曲線１２）の光束比を約５５％、
相関色温度が２７００Ｋ、平均演色評価数Ｒａが９２の第３のＬＥＤからなる第３光源
１３（曲線１３）の光束比を約０％
相関色温度が２７００Ｋ、平均演色評価数Ｒａが６７の第４のＬＥＤからなる第４光源
１４（曲線１４）の光束比を約０％に
それぞれ調光制御することによって平均演色評価数Ｒａ８０における相関色温度５００
０Ｋの照明環境を造り出すことができる。 The graph shown in FIG. 7 is a graph showing the dimming rate of each of the light sources 11 to 14 at the correlated color temperature of 2850 K to 5000 K, that is, the luminous flux ratio (%) when the instrument luminous flux is constant 4000 lm. This shows the relationship with the luminous flux ratio (%) of each of the light sources 11 to 14 at the correlated color temperature in increments of 50K. As is apparent from this graph,
The luminous flux ratio of the first light source 11 (curve 11) comprising the first LED having a correlated color temperature of 5000K and an average color rendering index Ra of 92 is about 40%,
The luminous flux ratio of the second light source 12 (curve 12) composed of the second LED having a correlated color temperature of 5000 K and an average color rendering index Ra of 70 is about 55%;
The luminous flux ratio of the third light source 13 (curve 13) comprising the third LED having a correlated color temperature of 2700K and an average color rendering index Ra of 92 is about 0%.
Correlation at the average color rendering index Ra80 by controlling the light intensity of the fourth light source 14 (curve 14) comprising the fourth LED having a correlated color temperature of 2700K and an average color rendering index Ra of 67 to about 0%. Color temperature 500
A 0K lighting environment can be created.

同様にして、相関色温度４０００Ｋの照明環境は、第１光源１１の光束比を約３８％、
第２光源１２の光束比を約２５％、第３光源１３の光束比を約０％、第４光源１４の光束
比を約３８％に、それぞれ調光制御することによって造り出すことができる。同様にして
、各光源の光束比を制御することによって、器具光束を一定とした平均演色評価数Ｒａ８
０における相関色温度が２８５０Ｋ〜５０００Ｋの多様な照明環境を造り出すことができ
る。 Similarly, the illumination environment with a correlated color temperature of 4000 K has a luminous flux ratio of the first light source 11 of about 38%,
The light source ratio of the second light source 12 is about 25%, the light source ratio of the third light source 13 is about 0%, and the light source ratio of the fourth light source 14 is about 38%. Similarly, by controlling the luminous flux ratio of each light source, the average color rendering index Ra8 with a constant instrument luminous flux.
It is possible to create various lighting environments having a correlated color temperature at 0 of 2850K to 5000K.

さらに、上記と同様にして、図７のグラフに示すように、器具光束を一定とし、平均演
色評価数Ｒａ、例えば７０〜９５における各光源１１〜１４の光束比（％）、すなわち調
光率と相関色温度（Ｋ）の関係を抽出することによって、各種の平均演色評価数Ｒａにお
ける各種の相関色温度を有する多様な照明環境を造り出することが可能になる。しかも、
これら照明環境は各グラフの曲線に沿って連続的にかつ任意に造り出すことも可能になる
。 Further, in the same manner as described above, as shown in the graph of FIG. 7, the luminous flux of the instrument is constant, and the luminous intensity ratio Ra is, for example, the luminous flux ratio (%) of each of the light sources 11 to 14 at 70 to 95, that is, the dimming rate. And the correlated color temperature (K) can be extracted to create various lighting environments having various correlated color temperatures at various average color rendering index Ra. Moreover,
These lighting environments can be created continuously and arbitrarily along the curve of each graph.

また、制御部３０では、上記のように、各光源１１〜１４の光束を制御することによっ
て相関色温度（Ｋ）、平均演色評価数Ｒａの各要素をそれぞれ制御し、さらに光出力を制
御して、各種多様な照明環境を任意に造り出すことができる。さらに、これら全ての要素
を制御することなく、光束と相関色温度、光束と平均演色評価数Ｒａ、若しくは相関色温
度と平均演色評価数Ｒａ等、これら要素の内、少なくとも２つの要素を制御することによ
って各種多様な照明環境を造り出すことが可能になる。 Further, as described above, the control unit 30 controls each element of the correlated color temperature (K) and the average color rendering index Ra by controlling the luminous flux of each of the light sources 11 to 14, and further controls the light output. Various lighting environments can be created arbitrarily. Furthermore, without controlling all these elements, at least two of these elements such as the luminous flux and the correlated color temperature, the luminous flux and the average color rendering index Ra, or the correlated color temperature and the average color rendering index Ra are controlled. As a result, various lighting environments can be created.

また、制御部３０は、相関色温度を変化させたときに、色の見え方が不自然にならないように制御する。すなわち、上記のように、４種類の光源（ＬＥＤ）を用いて調光する場合、特定の相関色温度と平均演色評価数Ｒａを実現する調光率は無限にあるため、例えば、相関色温度を４０００Ｋで平均演色評価数Ｒａ８０の調光率を、相関色温度を４１００Ｋで平均演色評価数Ｒａ８０の調光率に変化させときに、色の見え方が不自然になってしまう場合がある。   In addition, the control unit 30 performs control so that the color appearance does not become unnatural when the correlated color temperature is changed. That is, as described above, when dimming using four types of light sources (LEDs), the dimming rate for realizing the specific correlated color temperature and the average color rendering index Ra is infinite. When the light control rate of the average color rendering index Ra80 is changed to 4000K and the correlated color temperature is changed to the light control rate of the average color rendering index Ra80 at 4100K, the color appearance may become unnatural.

そこで、制御部３０によって、４種類の光源（ＬＥＤ）の光束比を連続的になめらかに変化させることで、色の変化を自然に見せるように制御する。ΔＥ*ａｂとは色差（ＪＩＳ Ｚ ８７２９「色の表示方法―Ｌ*a*ｂ*表色系及びＬ*ｕ*ｖ*表色系」を参照）のことであり、例えば、相関色温度４０００Ｋ・平均演色評価数Ｒａ８０のＬ*a*ｂ*色空間におけるある物体の色度を（Ｌ*１、ａ*１、ｂ*１）、相関色温度４１００Ｋ・平均演色評価数Ｒａ８０のＬ*a*ｂ*色空間における前記と同等の物体の色度を（Ｌ*２、ａ*２、ｂ*２）とすると、ΔＥ*ａｂ＝（（Ｌ*２−Ｌ*１）2＋（a*２−a*１）2＋（ｂ*２−ｂ*１）2）0.5と書くことができる。ΔＥ*ａｂが低いほど２つの光源条件での物体の色の違いは小さいことになる。ＡＳＴＭ, “Ｍｅｔｈｏｄ Ｅ ９７−５３ Ｔ”,１９５３によれば、厳格な許容際の限界は、ΔＥ*ａｂが０．６以内であり、より実用的には１．２以内としており、その範囲であれば略同一の色に見えるということができる。 Therefore, the control unit 30 performs control so as to make the color change look natural by continuously and smoothly changing the light flux ratios of the four types of light sources (LEDs). ΔE * ab is a color difference (see JIS Z 8729 “Color Display Method—L * a * b * Color System and L * u * v * Color System”), for example, correlated color temperature 4000K. The chromaticity of an object in the L * a * b * color space with an average color rendering index Ra80 is (L * 1, a * 1, b * 1), the correlated color temperature is 4100 K, and the L * a with an average color rendering index Ra80 * E * ab = ((L * 2-L * 1) 2 + (a * ) where (L * 2, a * 2, b * 2) is the chromaticity of an object equivalent to the above in the b * color space . 2-a * 1) 2 + (b * 2-b * 1) 2) can be written as 0.5. The lower the ΔE * ab, the smaller the color difference of the object under the two light source conditions. According to ASTM, “Method E 97-53 T”, 1953, the strict tolerance limit is that ΔE * ab is within 0.6, more practically within 1.2, and within that range If it exists, it can be said that it looks almost the same color.

図７のように光束比をなめらかに連続的に変化させることによって、ある特定の平均演色評価数Ｒａにおいて、５０Ｋ刻みで相関色温度を変化させたときに、ΔＥ*ａｂを０．６以下、１００Ｋ刻みで相関色温度を変化させたときに、ΔＥ*ａｂを１．２以下の範囲におさめることが可能である。これによって、相関色温度を５０〜１００Ｋ刻みで変化させて行ったときに、物体の色を違和感なく見せることができる。 By changing the luminous flux ratio smoothly and continuously as shown in FIG. 7, when the correlated color temperature is changed in increments of 50K at a specific average color rendering index Ra, ΔE * ab is 0.6 or less, When the correlated color temperature is changed in increments of 100K, ΔE * ab can be kept within a range of 1.2 or less. Thus, when the correlated color temperature is changed in increments of 50 to 100K, the color of the object can be shown without a sense of incongruity.

図８（ａ）（ｂ）に平均演色評価数Ｒａ８０で、５０Ｋ刻みで相関色温度を変化させたときのＪＩＳ演色評価試験色Ｎｏ．１〜Ｎｏ．４およびＮｏ．５〜Ｎｏ．８のΔＥ*ａｂを示す。また、図８（ｃ）（ｄ）に、平均演色評価数Ｒａ８０で、１００Ｋ刻みで相関色温度を変化させたときのＪＩＳ演色評価試験色Ｎｏ．１〜Ｎｏ．４およびＮｏ．５〜Ｎｏ．８のΔＥ*ａｂを示す。なお、図８（ａ）〜（ｄ）のグラフにおいて、試験色Ｎｏ．１〜Ｎｏ．８の表示は、ＪＩＳ演色評価試験色Ｎｏ．１〜Ｎｏ．８を表している。 8A and 8B, the JIS color rendering evaluation test color No. when the correlated color temperature is changed in increments of 50K with the average color rendering index Ra80. 1-No. 4 and no. 5-No. A ΔE * ab of 8 is shown. 8C and 8D show the JIS color rendering evaluation test color No. when the correlated color temperature is changed in increments of 100K with the average color rendering index Ra80. 1-No. 4 and no. 5-No. A ΔE * ab of 8 is shown. In the graphs of FIGS. 8A to 8D, the test color No. 1-No. No. 8 indicates JIS color rendering evaluation test color No. 1-No. 8 is represented.

以上から明らかなように、平均演色評価数Ｒａ一定条件の基で、５０Ｋ〜１００Ｋ刻みで相関色温度を変化させていったとき、ＪＩＳ演色評価色票Ｎｏ.１〜Ｎｏ.８の色の変化が、２８５０Ｋ以上の相関色温度範囲で色差ΔＥ*ａｂが０．９以下となっているように、制御部３０によって制御することによって、色の見え方が不自然に変化することがなく、違和感のない連続的な照明パターンを造りだすことが可能になる。 As is clear from the above, when the correlated color temperature is changed in increments of 50K to 100K on the basis of the constant condition of the average color rendering index Ra, the color change of the JIS color rendering evaluation color charts No. 1 to No. 8 However, by controlling by the control unit 30 so that the color difference ΔE * ab is 0.9 or less in the correlated color temperature range of 2850 K or more, the color appearance does not change unnaturally, and the user feels uncomfortable. It becomes possible to create a continuous lighting pattern without any noise.

また、制御部３０は、演算部によって都度演算して任意または連続的に各種の照明環境
を造り出すように制御してもよいが、予め決められた各種の照明パターン、すなわち、実
現可能な光束、平均演色評価数Ｒａ、相関色温度の範囲において、予め各光源１１〜１４
の調光率を計算したテーブルを記憶部に保持しておき、記憶された照明パターンを適宜呼
び出すことによって色の見え方が自然な各種多様な照明環境、シーンを演出するようにしてもよい。記憶させる照明パターンは、例えば、朝・昼・夕の一日の時間帯や季節等の時間的要素、天候や気温等の自然的要素、部屋の使用状況、住宅・オフィス・作業場・工場等の使用環境等の各要素を勘案して、各種の照明パターンを作成するとよい。 Further, the control unit 30 may perform calculation by the calculation unit each time and control to create various illumination environments arbitrarily or continuously, but various predetermined illumination patterns, that is, realizable light fluxes, In the range of the average color rendering index Ra and the correlated color temperature, each of the light sources 11 to 14 in advance.
A table in which the dimming rate is calculated may be held in the storage unit, and various stored lighting environments and scenes with natural color appearance may be produced by appropriately calling the stored lighting patterns. The lighting patterns to be memorized include, for example, time elements such as morning, noon, and evening time zones and seasons, natural elements such as weather and temperature, room usage conditions, houses, offices, workplaces, factories, etc. Various lighting patterns may be created in consideration of each element such as the usage environment.

上記により、基板１６に実装された第１〜第４の各ＬＥＤからなる光源１１〜１４を有
し、各光源を制御する制御部３０を具備する照明装置１０が構成される。上記に構成され
た照明装置１０は、照明装置１個で構成してもよいが、複数個用いることによって照明器
具が構成される。本実施形態の照明器具は、図９に示すように、照明装置１０を８個使用した天井埋込形の照明器具を構成した。 As described above, the lighting device 10 including the light sources 11 to 14 including the first to fourth LEDs mounted on the substrate 16 and including the control unit 30 that controls the light sources is configured. The illuminating device 10 configured as described above may be configured by one illuminating device, but a luminaire is configured by using a plurality of the illuminating devices. As shown in FIG. 9, the lighting fixture of the present embodiment is a ceiling-embedded lighting fixture using eight lighting devices 10.

次に、照明器具の構成につき説明する。照明器具４０は、図９（ａ）（ｂ）に示すように、器具本体４１と、器具本体４１に配設された上記構成の照明装置１０で構成される。   Next, the configuration of the lighting fixture will be described. As illustrated in FIGS. 9A and 9B, the lighting fixture 40 includes a fixture main body 41 and the lighting device 10 having the above-described configuration disposed in the fixture main body 41.

器具本体４１は、略正方形をなす鋼板等からなるベース体４１ａと、ベース体４１ａを
カバーする乳白色の合成樹脂からなるセード４１ｂで構成される。本実施形態における器
具本体４１の縦・横寸法は、約６００ｍｍに構成した。 The instrument body 41 includes a base body 41a made of a substantially square steel plate and the like, and a shade 41b made of milky white synthetic resin that covers the base body 41a. The vertical and horizontal dimensions of the instrument body 41 in the present embodiment are configured to be about 600 mm.

ベース体４１ａには、上記に構成した照明装置１０が８個設置される。８個の照明装置
は、４個ずつに分けられ、正方形のベース体４１ａの一辺に略平行し、各照明装置１０が
略等しい間隔を有して配置される。各照明装置１０は、並列になるように電気的に接続さ
れ、８個の照明装置１０における各光源１１〜１４の各点灯回路３１が集められ、制御部
３０と共に点灯ケース３１ａ内に収容されベース体４１ａの裏面側に設置される。そして
各照明装置１０は、各点灯回路３１および制御部３０を介して電源Ｅに接続される。 Eight lighting devices 10 configured as described above are installed on the base body 41a. The eight illuminating devices are divided into four pieces, substantially parallel to one side of the square base body 41a, and the illuminating devices 10 are arranged with substantially equal intervals. The lighting devices 10 are electrically connected so as to be in parallel, and the lighting circuits 31 of the light sources 11 to 14 in the eight lighting devices 10 are collected and housed in the lighting case 31 a together with the control unit 30. It is installed on the back side of the body 41a. Each lighting device 10 is connected to the power source E via each lighting circuit 31 and the control unit 30.

なお、本実施形態において、照明器具４０は、相関色温度が約３０００Ｋ近辺の電球色
で平均演色評価数Ｒａが６０と９０、また相関色温度が約６５００Ｋ近辺の昼光色で平均
演色評価数Ｒａが６０と９０の４種類のＬＥＤを搭載した８個の照明装置１０によって、
可変色・可変演色性器具として構成した。 In the present embodiment, the lighting fixture 40 has an average color rendering index Ra of 60 and 90 for a light bulb color having a correlated color temperature of about 3000K and a daylight color having a correlated color temperature of about 6500K, and an average color rendering index Ra of about 6500K. With eight lighting devices 10 equipped with four types of LEDs 60 and 90,
Configured as a variable color / variable color rendering device.

なお、本実施形態において、制御部３０は、８個の照明装置１０の調光率データを同一
として共通に制御することによって色の見え方が自然な各種多様な照明環境を造り出すように構成したが、８個の照明装置１０の調光率データを異ならせて個別に制御するようにしてもよい。例えば、電球色、昼白色、昼光色等を組み合わせたり、４個の光出力を落として不点灯となした省エネモードを造り出すようにしてもよい。なお、図中、Ｐは部屋の壁面に設置される操作パネル、Ｒはリモコンで、目的とする照明環境を造りだすための無線信号を制御部３０に対して送信するもので、操作パネルＰとリモコンＲの両方を設置しても、いずれか一方を設置するようにしてもよい。また、制御部３０は、操作パネルＰまたはリモコンＲ内に設けられたものであってもよい。 In the present embodiment, the control unit 30 is configured to create various lighting environments in which the color appearance is natural by commonly controlling the dimming rate data of the eight lighting devices 10 in common. However, the dimming rate data of the eight lighting devices 10 may be differently controlled. For example, a light bulb color, day white, daylight color, or the like may be combined, or an energy saving mode may be created in which four light outputs are turned off and the lamp is not lit. In the figure, P is an operation panel installed on the wall surface of the room, R is a remote controller, and transmits a radio signal for creating a target lighting environment to the control unit 30. Either the remote controller R or either one may be installed. The control unit 30 may be provided in the operation panel P or the remote controller R.

次に、上記に構成された照明器具を用いた照明ショールームに設置される照明制御シス
テムの構成を説明する。本実施形態の照明制御システム５０は、図１０に示すように、上記構成の照明器具４０を９台使用して構成される。 Next, the structure of the illumination control system installed in the illumination showroom using the illumination apparatus configured as described above will be described. As shown in FIG. 10, the lighting control system 50 of the present embodiment is configured by using nine lighting fixtures 40 having the above-described configuration.

各照明器具４０は、ショールームに設置された部屋の略正方形をなす天井Ｘに、３台ず
つが３列に略等間隔に位置するように設置される。そして、各照明器具４０は、並列にな
るように電気的に接続され、９台の照明器具４０を共通に制御する制御部３０が天井等に
設けられて構成される。また、操作パネルＰが壁面に設置され、リモコンＲが設置されて
照明制御システム５０が構成される。 Each of the lighting fixtures 40 is installed on a ceiling X that forms a substantially square shape of a room installed in the showroom so that three units are positioned in three rows at approximately equal intervals. And each lighting fixture 40 is electrically connected so that it may become parallel, and the control part 30 which controls nine lighting fixtures 40 in common is provided in a ceiling etc., and is comprised. In addition, the operation panel P is installed on the wall surface, and the remote control R is installed to configure the illumination control system 50.

上記に構成された照明制御システム５０は、ショールームの来場者に対して、ガイドが
リモコンＲまたは操作パネルＰを操作し、色の見え方が自然な色温度と演色性の連続的変化を体感してもらうことができる。特に本実施形態によれば、平均演色評価数Ｒａ、すなわち、演色性を変化させることができ、居住者の顔色が良くなったり悪くなったりすることが顕著に現われ、平均演色評価数Ｒａの変化を実際に体感できる。また、同時に相関色温度も変化させることができ、相関色温度の変化、例えば、電球色から昼白色さらには昼光色に至る空間の雰囲気を体感することもできる。また、予め記憶されたそれぞれの照明環境を、単にリモコンＲのボタンを押す操作によって、簡単かつ確実に造り出すことができる。さらに、各種の照明設計仕様を再現することも可能で、仕様決定の場とすることも可能になり、特に照明ショールームに好適な照明制御システムを提供することが可能になる。 In the lighting control system 50 configured as described above, the guide operates the remote control R or the operation panel P for the visitors in the showroom, and feels the continuous change in the color temperature and the color rendering with a natural color appearance. I can have you. In particular, according to the present embodiment, the average color rendering index Ra, that is, the color rendering property can be changed, and the occupant's facial color is significantly improved or deteriorated, and the average color rendering index Ra is changed. You can actually experience. In addition, the correlated color temperature can be changed at the same time, and a change in the correlated color temperature, for example, an atmosphere in a space from a light bulb color to a daylight white color or a daylight color can be experienced. In addition, each illumination environment stored in advance can be easily and reliably created by simply pressing a button on the remote controller R. Furthermore, it is possible to reproduce various lighting design specifications, which can be used as a place for specification determination, and it is possible to provide a lighting control system particularly suitable for a lighting showroom.

なお、本実施形態の照明制御システムにおいて、制御部３０は、９台の照明器具４０の
調光率データを同一にして共通に制御することによって色の見え方が自然な各種多様な照明環境を造り出すように構成したが、９台の照明器具４０の調光率データを異ならせて個別に制御するようにしてもよい。例えば、電球色、昼白色、昼光色等の器具を組み合わせたり、器具の一部の光出力を落として不点灯となした省エネモードを造り出すようにしてもよい。また、本実施形態において、照明制御システム５０は、照明器具４０のみによって構成したが、照明器具４０と照明装置１０を組み合わせて構成してもよい。さらに、照明装置１０のみによって構成してもよい。 In the lighting control system of the present embodiment, the control unit 30 controls various lighting environments in which the color appearance is natural by controlling the dimming rate data of the nine lighting fixtures 40 in common. However, the dimming rate data of the nine lighting fixtures 40 may be differently controlled. For example, an energy saving mode may be created in which light bulb color, day white, daylight color, or the like is combined, or a light output of a part of the device is turned off and the light is turned off. Moreover, in this embodiment, although the illumination control system 50 was comprised only with the lighting fixture 40, you may comprise combining the lighting fixture 40 and the illuminating device 10. FIG. Furthermore, you may comprise only with the illuminating device 10. FIG.

以上、本実施形態において、各光源をＬＥＤで構成したが、ＬＥＤに替えて白熱電球や
蛍光ランプ等を組み合わせて構成しても、ＬＥＤにこれら白熱電球や蛍光ランプ等を組み
合わせて構成してもよい。また、相関色温度を５０００Ｋ以上の光源と３０００Ｋ以下の
光源で構成したが、用途に応じて５０００Ｋ〜３０００Ｋ以内の相関色温度を有する光源で構成してもよい。また、平均演色評価数Ｒａを９０以上の光源と７０以下の光源で構成したが、用途に応じて９０〜７０以内の平均演色評価数Ｒａを有する光源で構成してもよい。 As mentioned above, in this embodiment, although each light source was comprised with LED, even if it replaces with LED and it comprises and combines with an incandescent lamp, a fluorescent lamp, etc., it may comprise by combining these incandescent lamp, a fluorescent lamp, etc. with LED. Good. In addition, although the correlated color temperature is composed of a light source having a correlated color temperature of 5000K or more and a light source having a correlated color of 3000K or less, the correlated color temperature may be composed of a light source having a correlated color temperature within 5000K to 3000K. Moreover, although the average color rendering index Ra is composed of 90 or more light sources and 70 or less light sources, the average color rendering index Ra may be composed of light sources having an average color rendering index Ra of 90 to 70 depending on the application.

また、各光源の基板への配置は、図１１に一部を拡大して示すように、長方形状をなす
発光モジュール２２を図の縦方向に８個単位で見たとき、図中点線枠のグループで示すよ
うに、相関色温度が低いＬＥＤチップ「Ｌ」と、相関色温度が高いＬＥＤチップ「Ｗ」の
ＬＥＤチップが交互になるように配置した。換言すれば、「Ｌ」と「Ｗ」のＬＥＤチップ
のグループが、図中矢印で示すように対角線上に位置して交差するように配置した。この
配置によって、「Ｌ」と「Ｗ」のＬＥＤチップのグループ、すなわち、略同様の相関色温
度を有するグループが一方に片寄ることがなく、各光源によって造り出された目的の相関
色温度による略均一な照明を行うことが可能になる。なお、図１１中「低Ｒａ」は、平均
演色評価数Ｒａが低いＬＥＤチップを示し、「高Ｒａ」は、平均演色評価数Ｒａが高いＬ
ＥＤチップを示す。「Ｌ」は、相関色温度が低いＬＥＤチップを示し、「Ｗ」は、相関色
温度が高いＬＥＤチップを示す。 Further, the arrangement of each light source on the substrate is as shown in a partly enlarged view in FIG. 11 when the light emitting module 22 having a rectangular shape is viewed in units of eight in the vertical direction of the figure. As shown in the group, the LED chip “L” having a low correlated color temperature and the LED chip “W” having a high correlated color temperature are alternately arranged. In other words, the groups of “L” and “W” LED chips are arranged so as to intersect and intersect diagonally as indicated by arrows in the figure. With this arrangement, groups of “L” and “W” LED chips, that is, groups having substantially the same correlated color temperature do not shift to one side, and the approximates of the target correlated color temperatures created by the respective light sources. It becomes possible to perform uniform illumination. In FIG. 11, “low Ra” indicates an LED chip having a low average color rendering index Ra, and “high Ra” indicates an L having a high average color rendering index Ra.
ED chip is shown. “L” indicates an LED chip having a low correlated color temperature, and “W” indicates an LED chip having a high correlated color temperature.

また、本実施形態において、照明器具は、上記に例示した照明ショールームに限らず、
店舗、オフィスなど施設・業務用等、さらに住宅用の各種の照明器具、さらには防犯灯・
街路灯・道路灯など屋外用の各種照明器具を構成してもよい。以上、本発明の好適な実施
形態を説明したが、本発明は上述の実施形態に限定されることなく、本発明の要旨を逸脱
しない範囲内において、種々の設計変更を行うことができる。 Moreover, in this embodiment, a lighting fixture is not restricted to the illumination showroom illustrated above,
Various lighting fixtures for homes, such as stores and offices, facilities and business use, and crime prevention lights,
Various outdoor lighting fixtures such as street lights and street lights may be configured. The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.

１０ 照明装置
１１ 第１光源
１２ 第２光源
１３ 第３光源
１４ 第４光源
３０ 制御部
４０ 照明器具
４１ 器具本体
５０ 照明制御システム

DESCRIPTION OF SYMBOLS 10 Illuminating device 11 1st light source 12 2nd light source 13 3rd light source 14 4th light source 30 Control part 40 Lighting fixture 41 Appliance main body 50 Lighting control system

Claims (5)

相対的に相関色温度が高く、相対的に平均演色評価数が高い第１光源と；
相対的に相関色温度が高く、相対的に平均演色評価数が低い第２光源と；
相対的に相関色温度が低く、相対的に平均演色評価数が高い第３光源と；
相対的に相関色温度が低く、相対的に平均演色評価数が低い第４光源と；
前記各光源の光束、相関色温度、平均演色評価数の少なくとも２つを制御する制御部と；
を具備していることを特徴とする照明装置。 A first light source having a relatively high correlated color temperature and a relatively high average color rendering index;
A second light source having a relatively high correlated color temperature and a relatively low average color rendering index;
A third light source having a relatively low correlated color temperature and a relatively high average color rendering index;
A fourth light source having a relatively low correlated color temperature and a relatively low average color rendering index;
A control unit that controls at least two of the luminous flux, correlated color temperature, and average color rendering index of each light source;
An illumination device comprising: 青色発光ダイオードと、青色発光ダイオードによって励起される蛍光体を有し、相関色温
度が５０００Ｋ以上、平均演色評価数が９０以上の第１の発光ダイオードと；
青色発光ダイオードと、青色発光ダイオードによって励起される蛍光体を有し、相関色温
度が５０００Ｋ以上、平均演色評価数が７０以下の第２の発光ダイオードと；
青色発光ダイオードと、青色発光ダイオードによって励起される蛍光体を有し、相関色温
度が３０００Ｋ以下、平均演色評価数が９０以上の第３の発光ダイオードと；
青色発光ダイオードと、青色発光ダイオードによって励起される蛍光体を有し、相関色温
度が３０００Ｋ以下、平均演色評価数が７０以下の第４の発光ダイオードと；
前記各発光ダイオードの光束、相関色温度、平均演色評価数の少なくとも２つを制御する
制御部と；
を具備していることを特徴とする照明装置。 A blue light emitting diode and a first light emitting diode having a phosphor excited by the blue light emitting diode, having a correlated color temperature of 5000 K or higher and an average color rendering index of 90 or higher;
A blue light emitting diode and a second light emitting diode having a phosphor excited by the blue light emitting diode and having a correlated color temperature of 5000 K or more and an average color rendering index of 70 or less;
A blue light emitting diode and a third light emitting diode having a phosphor excited by the blue light emitting diode and having a correlated color temperature of 3000 K or less and an average color rendering index of 90 or more;
A blue light emitting diode and a fourth light emitting diode having a phosphor excited by the blue light emitting diode and having a correlated color temperature of 3000 K or less and an average color rendering index of 70 or less;
A control unit that controls at least two of the luminous flux, correlated color temperature, and average color rendering index of each light emitting diode;
An illumination device comprising: 前記制御部は、平均演色評価数一定条件の基で、５０〜１００Ｋ刻みで相関色温度を変化させたとき、ＪＩＳ演色評価色票Ｎｏ.１〜Ｎｏ.８の色の変化が、色差ΔＥ*ａｂで０．９以下となっていることを特徴とする請求項１または２に記載の照明装置。 When the control unit changes the correlated color temperature in increments of 50 to 100K under the condition of a constant average color rendering index, the color change of JIS color rendering evaluation color charts No. 1 to No. 8 results in a color difference ΔE. * ab is 0.9 or less, The illuminating device of Claim 1 or 2 characterized by the above-mentioned. 器具本体と；
器具本体に配設された請求項１ないし３いずれか一に記載の照明装置と；
を具備していることを特徴とする照明器具。 An instrument body;
The lighting device according to any one of claims 1 to 3, which is disposed in the instrument body;
The lighting fixture characterized by comprising. 請求項１ないし３いずれか一に記載の照明装置およびまたは請求項４に記載の照明器具を具備していることを特徴とする照明制御システム。
An illumination control system comprising the illumination device according to any one of claims 1 to 3 and / or the illumination fixture according to claim 4.
JP2012003976A 2011-09-26 2012-01-12 Luminaire, lighting fixture, and lighting control system Pending JP2013084544A (en)

Priority Applications (4)

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JP2012003976A JP2013084544A (en) 2011-09-26 2012-01-12 Luminaire, lighting fixture, and lighting control system
US13/565,601 US20130076262A1 (en) 2011-09-26 2012-08-02 Lighting Device, Lighting Equipment, and Lighting Control System
EP12179043A EP2574148A2 (en) 2011-09-26 2012-08-02 Lighting device, lighting equipment, and lighting control system
CN2012103167110A CN103017014A (en) 2011-09-26 2012-08-30 Lighting device, lighting equipment, and lighting control system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014222594A (en) * 2013-05-13 2014-11-27 パナソニック株式会社 Lighting system
JP2016510159A (en) * 2013-08-02 2016-04-04 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Lamps and lighting fixtures with adjustable color rendering index
JP2017513186A (en) * 2014-03-17 2017-05-25 フィリップス ライティング ホールディング ビー ヴィ Illumination system for illuminating an article
JP2019067764A (en) * 2017-09-29 2019-04-25 大日本印刷株式会社 Spatial presentation system and spatial presentation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014222594A (en) * 2013-05-13 2014-11-27 パナソニック株式会社 Lighting system
JP2016510159A (en) * 2013-08-02 2016-04-04 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Lamps and lighting fixtures with adjustable color rendering index
JP2017513186A (en) * 2014-03-17 2017-05-25 フィリップス ライティング ホールディング ビー ヴィ Illumination system for illuminating an article
JP2019067764A (en) * 2017-09-29 2019-04-25 大日本印刷株式会社 Spatial presentation system and spatial presentation method

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