JP2008210588A - Illumination device and illumination system - Google Patents

Illumination device and illumination system Download PDF

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JP2008210588A
JP2008210588A JP2007044525A JP2007044525A JP2008210588A JP 2008210588 A JP2008210588 A JP 2008210588A JP 2007044525 A JP2007044525 A JP 2007044525A JP 2007044525 A JP2007044525 A JP 2007044525A JP 2008210588 A JP2008210588 A JP 2008210588A
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lighting
led
unit
light output
leds
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JP4951369B2 (en
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Yoshinobu Murakami
善宣 村上
Tetsuya Tanigawa
哲也 谷川
Masaki Kobayashi
正喜 小林
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

<P>PROBLEM TO BE SOLVED: To eliminate reduction in optical output due to aging deterioration of an LED and optical output variations of individual LEDs with a simple and convenient constitution. <P>SOLUTION: An illumination device 1 is equipped with an LED unit 2 on which LEDs 21, 22, 23 of respective colors are mounted in a plurality of numbers, and a lighting device 3 for supplying a prescribed current to the LED unit 2. The lighting device 3 is equipped with a power supply part 31, a lighting switch part 32 for adjusting the current to the LED unit 2, a control part 33 for carrying out lighting control of the LED unit 2, a timer part 34 for measuring lighting hours of the LED, a memory part 35 for memorizing a data table of resin transmittance against data of the timer part 34 and the accumulated lighting hours, a switching part 36 for switching resin data, and an operation part 37 for carrying out an operation in order to correct optical output of the LED based on the data or the like of the memory part 35. In the control part 33, based on the optical output or the like of the LED detected in the initial state before operation, a driving current value in order to control lighting of the LED is corrected to a prescribed value capable of obtaining the optical output serving as the reference. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ＬＥＤを用いた照明装置及び照明システムに関する。   The present invention relates to an illumination device and an illumination system using LEDs.

近年、演出用照明分野においては、ＬＥＤを用いた照明器具がビルの壁面演出や公園などの景観照明に用いられている。また、赤、緑、青に発光する各色のＬＥＤを様々に組み合わせて、高度なカラー演出を行う照明装置や照明システム等も提案され始めている。特にＬＥＤを用いた照明システムでは、従来の放電灯のような光源とは異なり、小型器具が構成できる等の特徴を生かして、多数の小型器具を備えた大規模なシステムが提案されている。   In recent years, in the lighting field for production, lighting fixtures using LEDs have been used for production of wall surfaces of buildings and landscape lighting of parks and the like. In addition, lighting devices, lighting systems, and the like that perform advanced color effects by variously combining LEDs of various colors that emit red, green, and blue have begun to be proposed. In particular, in an illumination system using LEDs, unlike a conventional light source such as a discharge lamp, a large-scale system including a large number of small appliances has been proposed taking advantage of the feature that a small appliance can be configured.

ところで、ＬＥＤは、白熱灯や蛍光灯に比べて長寿命であるが、発光ダイオードチップやこの発光ダイオードチップを封入している樹脂等の素材が劣化することで光束劣化が生じるため、ＬＥＤにおいて初期点灯時の光出力を得られるのは３０００時間程度とも言われている。そこで、上述した照明器具、照明装置及び照明システム等において、ＬＥＤの経年劣化による光出力の低下を補正し、所定の光出力で点灯動作を行うことができるように、様々な提案がなされている。   By the way, LEDs have a longer life than incandescent lamps and fluorescent lamps. However, since the light emitting diode chip and a material such as a resin enclosing the light emitting diode chip deteriorate, the light flux deteriorates. It is said that it is about 3000 hours to obtain the light output at the time of lighting. Therefore, various proposals have been made in the above-described lighting fixtures, lighting devices, lighting systems, and the like so as to correct a decrease in light output due to aging degradation of LEDs and perform a lighting operation with a predetermined light output. .

例えば、特許文献１には、ドット式ＬＥＤ表示器において、ＬＥＤの経年劣化による輝度変化量を予め設定しておき、ＬＥＤの累積点灯時間から各ＬＥＤの現在の輝度を算出し、算出結果を基に、ＬＥＤ点灯のための駆動パルス幅を変化させて、各ＬＥＤの輝度を自動補正するようにしたものが開示されている。なお、上述のようなＬＥＤの寿命時間を測定するものとして、特許文献２には、測定対象である代表ＬＥＤに基準用ＬＥＤを設け、両者の光度を比較してＬＥＤ信号灯の寿命を判定するようにしたＬＥＤ信号灯の寿命検出方法が開示されている。
特開２０００−１３２１１８号公報 特開平８−２０１４７２号公報 For example, in Patent Document 1, in a dot-type LED display, the amount of change in luminance due to LED aging is set in advance, the current luminance of each LED is calculated from the cumulative lighting time of the LED, and the calculation result is used as a basis. Further, there is disclosed a device in which the brightness of each LED is automatically corrected by changing the drive pulse width for lighting the LED. In addition, as what measures the lifetime of the above-mentioned LED, in patent document 2, reference LED is provided in the representative LED which is a measuring object, and the lifetime of an LED signal lamp is determined by comparing both luminous intensity. An LED signal lamp life detection method is disclosed.
JP 2000-132118 A JP-A-8-2014472

しかしながら、ＬＥＤの製造バラツキによって、ＬＥＤ個々の光出力の特性にはバラツキがあり、特許文献１に記載される器具では、赤、緑、青の各色のＬＥＤの劣化の度合いが異なる場合は、光束劣化が著しい寿命末期時に、器具内の各ＬＥＤ間での色のバラツキや、隣接した他器具との色のバラツキが顕著になる虞がある。なお、特許文献２の発明は、基準ＬＥＤとそれを測定する回路を用いて、単に寿命を検出しているだけであり、ＬＥＤの経年劣化による光出力の低下を補正する方法を開示するものではない。一方、上述の技術とは別に、光検出センサを用いて光出力等を検出して、所定の光出力が得られるようにフィードバック制御を行う方法が考えられるが、光検出センサは高価であり、回路構成も複雑になるという問題を有している。   However, there is a variation in the light output characteristics of each LED due to variations in manufacturing of the LEDs, and in the appliance described in Patent Document 1, if the degree of deterioration of the red, green, and blue LEDs differs, the luminous flux At the end of the lifetime when the deterioration is remarkable, there is a possibility that the color variation between the LEDs in the device and the color variation between the adjacent other devices become significant. Note that the invention of Patent Document 2 merely detects the lifetime using a reference LED and a circuit that measures the reference LED, and does not disclose a method for correcting a decrease in light output due to aging of the LED. Absent. On the other hand, apart from the above-described technique, a method of performing feedback control so as to obtain a predetermined light output by detecting light output or the like using a light detection sensor is conceivable, but the light detection sensor is expensive, The circuit configuration is also complicated.

本発明は、上記問題を解決するためになされたものであり、簡便な構成でありながら、ＬＥＤの経年劣化による光出力の低下及びＬＥＤ個々の光出力のバラツキを排除し、寿命末期になっても色合いが変わらず、安定した点灯動作を行うことができる照明装置及び照明システムを提供することを目的とする。   The present invention has been made in order to solve the above-mentioned problems, and although it has a simple configuration, it eliminates a decrease in light output due to aging degradation of LEDs and variations in individual light outputs of LEDs, and reaches the end of life. Another object of the present invention is to provide a lighting device and a lighting system capable of performing a stable lighting operation without changing the hue.

上記目的を達成するために請求項１の発明は、発光ダイオードチップを樹脂封止して発光源を形成して成るＬＥＤを点灯させる照明装置であって、前記ＬＥＤの累積点灯時間に応じた前記樹脂の光透過率の変化が前記ＬＥＤの光出力に及ぼす影響を補正するためのデータテーブルを記憶する記憶部と、このデータテーブルによって前記ＬＥＤの光出力を補正して当該ＬＥＤを点灯制御する制御部とを備え、前記制御部は、前記照明装置の稼動前の初期状態において検出した前記ＬＥＤの光出力、電圧値及び電流値に基づいて、前記ＬＥＤを点灯制御するための駆動電流値を、基準となる光出力が得られる所定の値に補正するものである。   In order to achieve the above object, the invention of claim 1 is an illuminating device for lighting an LED formed by sealing a light emitting diode chip to form a light emitting source, and the lighting device according to the cumulative lighting time of the LED. A storage unit for storing a data table for correcting the influence of the change in the light transmittance of the resin on the light output of the LED, and a control for correcting the lighting output of the LED by correcting the light output of the LED by the data table And the control unit, based on the light output, voltage value and current value of the LED detected in the initial state before the operation of the lighting device, a drive current value for controlling the lighting of the LED, The light is corrected to a predetermined value that provides a reference light output.

請求項２の発明は、請求項１の発明において、前記ＬＥＤは、赤、緑、青の各色のＬＥＤから成り、前記各色のＬＥＤの光出力を補正する補正係数を演算するための演算部を備え、前記制御部は、前記演算部の演算によって得られた補正係数を用いて、所定の色度が得られるように前記各色のＬＥＤを点灯制御するものである。   According to a second aspect of the present invention, in the first aspect of the invention, the LED is composed of LEDs of red, green, and blue colors, and a calculation unit for calculating a correction coefficient for correcting the light output of the LEDs of the respective colors. The control unit controls lighting of the LEDs of the respective colors so as to obtain a predetermined chromaticity by using the correction coefficient obtained by the calculation of the calculation unit.

請求項３の発明は、請求項１又は請求項２の発明において、前記データテーブルは、前記樹脂の種類に応じて複数定められると共に、このデータテーブルを切り替える切替部を設けたものである。   According to a third aspect of the present invention, in the first or second aspect of the present invention, a plurality of the data tables are determined according to the type of the resin, and a switching unit for switching the data tables is provided.

請求項４の発明は、請求項１乃至請求項３のいずれか一項に記載の複数の照明装置と、前記照明装置に接続して、前記データテーブルを基に前記照明装置を子機として、その点灯状態を個別に管理する親機とを備えた照明システムであって、前記親機は、前記各照明装置に前記データテーブルを備える代わりに前記データテーブルを備えているものである。   Invention of Claim 4 is connected to the said some illuminating device and the said illuminating device as described in any one of Claim 1 thru | or 3, The said illuminating device is made into a subunit | mobile_unit based on the said data table, The lighting system includes a parent device that individually manages the lighting state, and the parent device includes the data table instead of the data table in each lighting device.

請求項１の発明によれば、樹脂の劣化によるＬＥＤの光出力の変動がデータテーブルに基づいて補正されるので、ＬＥＤの経年劣化に影響されない、適正なＬＥＤの光出力を得ることができる。さらに、製造バラツキによるＬＥＤ個々の光出力のバラツキが補正され、その補正した状態を基準として、上記データテーブルによりＬＥＤ個々の光出力を補正することで、ＬＥＤの光束劣化が著しい寿命末期時においても、ＬＥＤの色合いが変化しないので、ＬＥＤを交換することなく、安定した点灯動作を行うことができる。   According to the first aspect of the present invention, since the fluctuation of the light output of the LED due to the deterioration of the resin is corrected based on the data table, it is possible to obtain an appropriate light output of the LED that is not affected by the aging deterioration of the LED. Furthermore, the variation in light output of each LED due to manufacturing variation is corrected, and the light output of each LED is corrected using the data table on the basis of the corrected state. Since the color of the LED does not change, a stable lighting operation can be performed without replacing the LED.

請求項２の発明によれば、赤、緑、青の各色のＬＥＤの光出力が、正確に補正されるので、寿命末期時においても、赤、緑、青の光が予め設定した所定の色度で合成され、装置内におけるＬＥＤの発光色度にばらつきが生じない。   According to the invention of claim 2, since the light output of the red, green and blue LEDs is accurately corrected, the red, green and blue lights are set in a predetermined color even at the end of the lifetime. The light emission chromaticity of the LED in the apparatus does not vary.

請求項３の発明によれば、ＬＥＤを交換する度に、その樹脂の種類に応じて、新たなデータテーブルを設定する煩雑な作業を必要としない。   According to the invention of claim 3, every time the LED is replaced, a complicated operation for setting a new data table is not required according to the type of the resin.

請求項４の発明によれば、親機のみが照明装置内のＬＥＤの対応したデータテーブルを所有すればよいので、簡便であってコストパフォーマンスに優れた照明システムが得られる。   According to the fourth aspect of the present invention, since only the master unit has to own a data table corresponding to the LEDs in the lighting device, a lighting system that is simple and excellent in cost performance can be obtained.

（第１の実施形態）
本発明の第１の実施形態に係る照明装置について図１乃至図５を参照して説明する。図１及び図２は本実施形態に係る照明装置の概略構成を示す。照明装置１は、発光ダイオードチップを樹脂封止して発光源を形成して成るＬＥＤを点灯させる照明装置であって、赤色ＬＥＤ２１、緑色のＬＥＤ２２及び青色ＬＥＤ２３がそれぞれ複数実装されたＬＥＤユニット２と、商用電源４に接続され、ＬＥＤユニット２を点灯制御し、所定の電流をＬＥＤユニット２に供給する点灯装置３とを備える。 (First embodiment)
A lighting device according to a first embodiment of the present invention will be described with reference to FIGS. FIG.1 and FIG.2 shows schematic structure of the illuminating device based on this embodiment. The illuminating device 1 is an illuminating device that lights an LED formed by sealing a light emitting diode chip to form a light emitting source, and includes an LED unit 2 on which a plurality of red LEDs 21, green LEDs 22, and blue LEDs 23 are mounted. And a lighting device 3 that is connected to a commercial power source 4, controls lighting of the LED unit 2, and supplies a predetermined current to the LED unit 2.

このＬＥＤユニット２は、赤、緑、青のＬＥＤ２１、２２、２３から構成され、複数の直列接続された同色のＬＥＤを並列に接続したものである。各色のＬＥＤ２１、２２、２３には電流調整用の電気抵抗２４が接続されている。ＬＥＤユニット２は、各色のＬＥＤ２１、２２、２３から発せられる赤、緑、青の光が合成されることで、所定の色度の光を発することができる。   This LED unit 2 is composed of red, green, and blue LEDs 21, 22, and 23, and a plurality of LEDs of the same color connected in series are connected in parallel. An electric resistance 24 for current adjustment is connected to each color LED 21, 22, 23. The LED unit 2 can emit light of a predetermined chromaticity by combining red, green, and blue light emitted from the LEDs 21, 22, and 23 of the respective colors.

点灯装置３は、商用電源４の交流電流を直流電流に変換する電源部３１と、この電源部３１と接続され、ＬＥＤユニット２に流れる電流を調整する点灯スイッチ部３２と、ＬＥＤユニット２の点灯制御を行う制御部３３と、各色のＬＥＤ２１、２２、２３の点灯時間を計測するタイマ部３４と、このタイマ部３４からのデータ及び樹脂の劣化特性のデータを記憶する記憶部３５と、樹脂の種類を外部から入力し、樹脂の劣化特性のデータを切り替える切替部３６と、記憶部３５でのデータ及び切替部３６での入力値を基に、各色のＬＥＤ２１、２２、２３の光出力を補正するための演算を行う演算部３７とを有している。ここで、記憶部３５に樹脂の劣化特性のデータを記憶させるのは、ＬＥＤの経年劣化の原因として挙げられる、発光ダイオードチップの半導体構造による劣化、発光ダイオードチップを接合している接合部の劣化及び発光ダイオードチップを封止する樹脂の劣化の内、樹脂の劣化がＬＥＤの経年劣化の主要因となるためである。   The lighting device 3 includes a power supply unit 31 that converts an alternating current of the commercial power supply 4 into a direct current, a lighting switch unit 32 that is connected to the power supply unit 31 and adjusts a current flowing through the LED unit 2, and lights the LED unit 2. A control unit 33 for controlling, a timer unit 34 for measuring the lighting times of the LEDs 21, 22, and 23 for the respective colors, a storage unit 35 for storing data from the timer unit 34 and data on deterioration characteristics of the resin, The light output of the LEDs 21, 22, and 23 of each color is corrected based on the input from the outside, the switching unit 36 that switches the data of the deterioration characteristics of the resin, and the data in the storage unit 35 and the input value in the switching unit 36. And an arithmetic unit 37 that performs an arithmetic operation for the purpose. Here, the data of the deterioration characteristics of the resin is stored in the storage unit 35 because of deterioration of the LED structure due to the semiconductor structure of the light emitting diode chip, and deterioration of the joint part where the light emitting diode chip is bonded. This is because, among the deterioration of the resin that seals the light emitting diode chip, the deterioration of the resin becomes the main factor of the aging deterioration of the LED.

点灯スイッチ部３２は、電源部３１によって変換された直流電流を所定の周期でオン／オフさせる第１ドライバ３２１と、この第１ドライバ３２１からの電流を整流して電圧を平滑化するための、トランジスタ３２２、ダイオード３２３、チョークコイル３２４及びコンデンサ３２５と有しており、各色のＬＥＤ２１、２２、２３にかかる電圧を降下させるための降圧チョッパ回路を構成している。また、点灯スイッチ部３２は、点灯制御用の第２ドライバ３２６と各色のＬＥＤ２１、２２、２３毎に設けられた電界効果トランジスタ（ＦＥＴ）３２７とを有しており、デューティ比を変化させることで各色のＬＥＤ２１、２２、２３の光出力の補正を行うＰＷＭ制御回路を構成している。   The lighting switch unit 32 is a first driver 321 for turning on / off the direct current converted by the power supply unit 31 in a predetermined cycle, and for smoothing the voltage by rectifying the current from the first driver 321. It has a transistor 322, a diode 323, a choke coil 324, and a capacitor 325, and constitutes a step-down chopper circuit for dropping the voltage applied to each color LED 21, 22, 23. The lighting switch unit 32 includes a second driver 326 for lighting control and a field effect transistor (FET) 327 provided for each of the LEDs 21, 22, and 23 of each color, and by changing the duty ratio. A PWM control circuit that corrects the light output of the LEDs 21, 22, and 23 of each color is configured.

図３は、記憶部３５のメモリ構成を示す。記憶部３５は、タイマ部３４によって計測された各色のＬＥＤ２１、２２、２３の点灯時間を加算して、点灯動作を開始してからの累積点灯時間を記憶する。また、記憶部３５は、上述の樹脂の劣化特性のデータとして、累積点灯時間に対するＬＥＤ相対輝度劣化のデータを基に、樹脂の種類及び累積点灯時間の所定の間隔毎にテーブル化した光出力補正テーブルを記憶する。ここで、ＬＥＤ相対輝度劣化のデータとは、樹脂が熱や紫外線によって劣化して光の透過度が低下することで、初期状態に対してＬＥＤの光出力が低下する関係を表すものである。下記表１は、光出力補正テーブルの概要を示す。この光出力補正テーブルには、樹脂の種類に応じて、累積点灯時間の所定の間隔毎に、一定の光出力が得られるように算出された出力比率データが設定されている。なお、樹脂の種類としては、ＬＥＤへの使用頻度の多いエポキシ系樹脂等が挙げられる。

Figure 2008210588
FIG. 3 shows a memory configuration of the storage unit 35. The storage unit 35 adds the lighting times of the LEDs 21, 22, and 23 of each color measured by the timer unit 34, and stores the cumulative lighting time after the lighting operation is started. In addition, the storage unit 35, as the above-described resin deterioration characteristic data, based on the LED relative luminance deterioration data with respect to the cumulative lighting time, a light output correction tabulated at predetermined intervals of the resin type and the cumulative lighting time. Remember the table. Here, the LED relative luminance deterioration data represents a relationship in which the light output of the LED decreases with respect to the initial state when the resin deteriorates due to heat or ultraviolet rays and the light transmittance decreases. Table 1 below shows an outline of the light output correction table. In this light output correction table, output ratio data calculated so as to obtain a constant light output at predetermined intervals of the cumulative lighting time is set according to the type of resin. In addition, as a kind of resin, the epoxy resin etc. with frequent use to LED are mentioned.
Figure 2008210588

演算部３７は、ＬＥＤユニット２が所定の色度で発光するように、記憶部３５の累積点灯時間と選定された樹脂の光出力補正テーブルから、各色のＬＥＤ２１、２２、２３の出力比率データを読み出して各色のＬＥＤ２１、２２、２３の調光レベルに応じて、制御部３３を介して点灯スイッチ部３２に送信されるデューティ比（補正係数）を演算する。図４は、演算部３７により演算されたデューティ比の信号波形を示す。このデューティ信号によって第２ドライバ３２６が各色のＬＥＤ２１、２２、２３に直列接続されたＦＥＴのオン時間を調整し、現在の各色ＬＥＤ２１、２２、２３の点灯時間における出力比率データに従った電力供給制御を行うことが可能である。   The calculation unit 37 obtains output ratio data of the LEDs 21, 22, and 23 of each color from the accumulated lighting time of the storage unit 35 and the light output correction table of the selected resin so that the LED unit 2 emits light with a predetermined chromaticity. The duty ratio (correction coefficient) transmitted to the lighting switch unit 32 through the control unit 33 is calculated according to the light control levels of the LEDs 21, 22, and 23 for each color. FIG. 4 shows a signal waveform of the duty ratio calculated by the calculation unit 37. With this duty signal, the second driver 326 adjusts the ON time of the FETs connected in series to the LEDs 21, 22, and 23 of each color, and controls power supply according to the output ratio data at the current lighting time of each LED 21, 22, and 23. Can be done.

次に、上記のように構成された第１の実施形態の照明装置の動作について説明する。図５は、本照明装置の動作のフローチャートを示す。まず、照明装置１に電源が投入されると（Ｓ１）、制御部３３は、切替部３６に設定されている各色のＬＥＤ２１、２２、２３の樹脂の種類を示すデータを読み出し（Ｓ２）、次いで記憶部３５に記憶された各色のＬＥＤ２１、２２、２３の累積点灯時間を読み出す（Ｓ３）。次に、この累積点灯時間に基づいて、記憶部３５に記憶されている光出力補正テーブルを参照し、所定の光出力を得るための各色のＬＥＤ２１、２２、２３に対応する出力比率データを読み出す（Ｓ４）。   Next, operation | movement of the illuminating device of 1st Embodiment comprised as mentioned above is demonstrated. FIG. 5 shows a flowchart of the operation of the illumination device. First, when the lighting device 1 is turned on (S1), the control unit 33 reads data indicating the resin types of the LEDs 21, 22, and 23 of the respective colors set in the switching unit 36 (S2), and then The cumulative lighting time of each color LED 21, 22, 23 stored in the storage unit 35 is read (S3). Next, based on the cumulative lighting time, the light output correction table stored in the storage unit 35 is referred to, and output ratio data corresponding to the LEDs 21, 22, and 23 for each color for obtaining a predetermined light output is read out. (S4).

演算部３７は、出力比率データに基づいて各色のＬＥＤ２１、２２、２３の調光レベルに応じた、各色のＬＥＤ２１、２２、２３の点灯デューティ比を算出し（Ｓ５）、制御部３３がこの点灯デューティ比を点灯スイッチ部３２に点灯動作信号として送信する。ここで、調光点灯を必要とする場合には、その調光レベルに応じた出力比率データを光出力補正テーブルから読み出して、ＬＥＤユニット２の電力供給制御を行う。例えば、表１に示すように、赤色のＬＥＤ２１において、樹脂の種類がＡであり、累積点灯時間が３００時間であり、３０％出力で調光点灯するとき、光出力補正テーブルを基に演算を行って、０．４５×０．３＝１３．５％のデューティ比で印加する。   The calculation unit 37 calculates the lighting duty ratios of the LEDs 21, 22, and 23 of the respective colors according to the dimming levels of the LEDs 21, 22, and 23 of the respective colors based on the output ratio data (S5), and the control unit 33 performs this lighting. The duty ratio is transmitted to the lighting switch unit 32 as a lighting operation signal. Here, when dimming lighting is required, output ratio data corresponding to the dimming level is read from the light output correction table, and power supply control of the LED unit 2 is performed. For example, as shown in Table 1, in the red LED 21, when the resin type is A, the cumulative lighting time is 300 hours, and dimming lighting is performed at 30% output, the calculation is performed based on the light output correction table. And apply at a duty ratio of 0.45 × 0.3 = 13.5%.

点灯スイッチ部３２は、制御部３３から受信した動作信号に従って、ＬＥＤユニット２への電力供給制御を行い、各色のＬＥＤ２１、２２、２３の点灯制御を実行する（Ｓ６）。次に、タイマ部３４は各色のＬＥＤ２１、２２、２３の点灯時間を計測し（Ｓ７）、計測した点灯時間を加算して記憶部３５に累積点灯時間として記憶させる（Ｓ８）。次に、Ｓ１からＳ８までの動作が、照明装置１の稼動前の初期状態、例えば照明装置１の設置施工時等において実行したものかどうかを判断し（Ｓ９）、初期状態であれば、このときの各色のＬＥＤ２１、２２、２３の光出力を、基準となる光出力が得られる所定の値に補正を行う（Ｓ１０）。なお、初期状態であるかどうかは、制御部３３に操作部等を別途設けて、容易に設定できるようにする。以後、ＬＥＤユニット２の点灯動作中においては、記憶部３５からの累積点灯時間の読み出しと、記憶部３５への点灯時間の書き込みを繰り返す。   The lighting switch unit 32 performs power supply control to the LED unit 2 according to the operation signal received from the control unit 33, and performs lighting control of the LEDs 21, 22, and 23 of each color (S6). Next, the timer unit 34 measures the lighting times of the LEDs 21, 22, and 23 of the respective colors (S7), adds the measured lighting times, and stores them in the storage unit 35 as the cumulative lighting time (S8). Next, it is determined whether the operations from S1 to S8 are performed in an initial state before the operation of the lighting device 1, for example, when the lighting device 1 is installed (S9). Then, the light output of each of the LEDs 21, 22, 23 of each color is corrected to a predetermined value that provides a reference light output (S10). Note that whether or not it is in the initial state can be easily set by separately providing an operation unit or the like in the control unit 33. Thereafter, during the lighting operation of the LED unit 2, the reading of the cumulative lighting time from the storage unit 35 and the writing of the lighting time to the storage unit 35 are repeated.

ここで、Ｓ９の動作は、各色のＬＥＤ２１、２２、２３において、ＬＥＤ個々の光出力のバラツキを調整する工程である。一般に、ＬＥＤの光出力の特性は樹脂の劣化によって変動し、また、ＬＥＤの製造の際のバラツキによって、ＬＥＤ個々の光出力の特性にはバラツキが生ずる。このＬＥＤ個々の光出力の特性のバラツキを排除するために、各色のＬＥＤ２１、２２、２３の光出力を初期状態において目視にて観察し、同じ調光レベルの制御にもかかわらず色合いや色度の差が大きいＬＥＤ２１、２２、２３に対しては、ＬＥＤ２１、２２、２３を点灯制御するための駆動電流値を調整して補正を行う。このときに補正したデータは、記憶部３５に記憶させておき、Ｓ５の動作において、この駆動電流値の調整値のデータと上述の出力比率データを用いて、各色のＬＥＤ２１、２２、２３の点灯デューティ比を算出する。   Here, the operation of S9 is a step of adjusting the variation in the light output of each LED in the LEDs 21, 22, 23 of each color. In general, the light output characteristics of an LED fluctuate due to deterioration of the resin, and the light output characteristics of each LED vary due to variations in manufacturing the LED. In order to eliminate variations in the light output characteristics of the individual LEDs, the light outputs of the LEDs 21, 22, and 23 of each color are visually observed in the initial state, and the hue and chromaticity are controlled despite the same dimming level control. For the LEDs 21, 22, and 23 having a large difference, the drive current value for controlling the lighting of the LEDs 21, 22, and 23 is adjusted and corrected. The data corrected at this time is stored in the storage unit 35, and the LEDs 21, 22, and 23 of each color are turned on using the adjustment value data of the drive current value and the output ratio data described above in the operation of S5. Calculate the duty ratio.

第１の実施形態に係る照明装置１によれば、調光レベルに応じた、適正な各色のＬＥＤ２１、２２、２３の光出力が得られるように、光出力補正テーブルに基づいて、各色のＬＥＤ２１、２２、２３への電力供給量を点灯時間経過に連動して自動的に調節できるため、ＬＥＤユニット２の点灯動作中において初期状態と比べて色合いの誤差が少ない、安定した点灯動作を行うことがきる。さらに、製造バラツキによるＬＥＤ個々の光出力のバラツキを補正し、その補正した状態を基準として、光出力補正テーブルを基に光出力を補正するので、樹脂の劣化によってＬＥＤの光束劣化が著しい寿命末期時においても、色度にばらつきが生じず、ＬＥＤを交換せずに使用することができる。また、高価な光検出センサを用いて光出力等を検出する必要や、フィードバック制御を行うための複雑な回路を実装する必要がなく、照明装置を安価に構成できる。   According to the illuminating device 1 which concerns on 1st Embodiment, LED21 of each color is based on a light output correction table so that the light output of LED21, 22, 23 of each appropriate color according to a light control level may be obtained. , 22, and 23 can automatically adjust the amount of power supplied in conjunction with the passage of lighting time, so that the lighting operation of the LED unit 2 can be stably performed with less color error than the initial state. I'm going. Furthermore, the variation in individual LED light output due to manufacturing variations is corrected, and the light output is corrected based on the corrected state based on the corrected state. Therefore, the degradation of the LED light flux is significant due to the deterioration of the resin. Even at times, chromaticity does not vary, and the LED can be used without being replaced. In addition, it is not necessary to detect an optical output or the like using an expensive photodetection sensor or to mount a complicated circuit for performing feedback control, and the lighting device can be configured at low cost.

（第２の実施形態）
本発明の第２の実施形態に係る照明システムについて図６乃至図９を参照して説明する。図６は本実施形態に係る照明システム１０の概略構成を示す。照明システム１０は、装置番号を示す各アドレス、例えば＃１から＃５のアドレスが設定された照明装置１と、この各照明装置１に接続され、各照明装置１を子機として各照明装置１の点灯状態を個別に管理する親機５とで構成される。この照明システム１０では、各照明装置１を様々に組み合わせて点灯制御することで、高度なカラー演出を行うことができる。 (Second Embodiment)
An illumination system according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 6 shows a schematic configuration of the illumination system 10 according to the present embodiment. The lighting system 10 is connected to each lighting device 1 in which addresses indicating device numbers, for example, addresses # 1 to # 5 are set, and each lighting device 1 using each lighting device 1 as a slave unit. And a base unit 5 that individually manages the lighting state of the. In this lighting system 10, it is possible to perform advanced color effects by controlling lighting by combining various lighting devices 1 in various ways.

図７は第２の実施形態に係る照明装置１の概略構成を示す。照明装置１は、第１の実施形態に記載のＬＥＤユニット２と、第１の実施形態に記載の点灯装置３からタイマ部３４及び切替部３６を排除し、新たに上述の各照明装置１に設定されたアドレスを所有して親機５との通信を行う通信部３９とを有した点灯装置３とを備える。また、記憶部３５の代わりに子記憶部３８を設け、上述の累積点灯時間及び光出力補正テーブルの代わりに、ＬＥＤユニット２に実装された各色のＬＥＤ２１、２２、２３の樹脂の種類を記憶させる。また、制御部３３は、後述する親制御部によって演算されたデューティ比（補正係数）を点灯スイッチ部３２への動作信号として出力する。なお、ＬＥＤユニット２及び点灯スイッチ部３２の回路構成は、図２に示す内容と同様である。   FIG. 7 shows a schematic configuration of the illumination device 1 according to the second embodiment. The lighting device 1 excludes the timer unit 34 and the switching unit 36 from the LED unit 2 described in the first embodiment and the lighting device 3 described in the first embodiment, and each of the lighting devices 1 described above is newly added. The lighting device 3 includes a communication unit 39 that owns the set address and communicates with the parent device 5. Further, a child storage unit 38 is provided instead of the storage unit 35, and the resin types of the LEDs 21, 22, and 23 of the respective colors mounted on the LED unit 2 are stored instead of the above-described cumulative lighting time and light output correction table. . Further, the control unit 33 outputs a duty ratio (correction coefficient) calculated by a parent control unit described later as an operation signal to the lighting switch unit 32. In addition, the circuit structure of the LED unit 2 and the lighting switch part 32 is the same as the content shown in FIG.

図８は第２の実施形態に係る親機５の概略構成を示す。親機５は、各照明装置１のＬＥＤユニット２の点灯演出パターン等を設定するための操作部５１と、照明システム１０内の各照明装置１の各色のＬＥＤ２１、２２、２３の点灯時間を計測するタイマ部５２と、照明システム１０内の各照明装置１の各色のＬＥＤ２１、２２、２３における樹脂の種類に基づく光出力補正テーブル、及びタイマ部５２で計測された点灯時間を加算した累積点灯時間を記憶する親記憶部５３と、各照明装置１での各色のＬＥＤ２１、２２、２３の樹脂の種類を判別する装置データ認識部５４と、各照明装置１との通信を行う通信部５５と、親記憶部５３でのデータを基に、操作部５１から指示された点灯演出パターンを実行するために、親機５内を制御する親制御部５６とを有している。親記憶部５３は、上述の光出力補正テーブル及び累積点灯時間に加え、各照明装置１のアドレスに応じた各色のＬＥＤ２１、２２、２３の樹脂の種類を示すテーブルを記憶する。下記表２は、上記樹脂の種類を示すテーブルの概要を示す。このテーブルは、装置データ認識部５４が各照明装置１のアドレスに基づいて、子記憶部３８に記憶された樹脂の種類のデータを判別することにより作成される。

Figure 2008210588
FIG. 8 shows a schematic configuration of the base unit 5 according to the second embodiment. The base unit 5 measures the lighting time of the operation unit 51 for setting the lighting effect pattern and the like of the LED unit 2 of each lighting device 1 and the LEDs 21, 22, and 23 of each color of each lighting device 1 in the lighting system 10. Timer section 52, a light output correction table based on the type of resin in each color LED 21, 22, 23 of each lighting device 1 in the lighting system 10, and a cumulative lighting time obtained by adding the lighting time measured by the timer section 52 , A storage unit 53 for determining the type of resin of each color LED 21, 22, 23 in each lighting device 1, a communication unit 55 for communicating with each lighting device 1, In order to execute the lighting effect pattern instructed from the operation unit 51 based on the data in the parent storage unit 53, a parent control unit 56 that controls the inside of the parent device 5 is provided. In addition to the light output correction table and the cumulative lighting time described above, the parent storage unit 53 stores a table indicating the resin types of the LEDs 21, 22, and 23 of each color corresponding to the address of each lighting device 1. Table 2 below shows an outline of a table indicating the types of the resin. This table is created when the device data recognition unit 54 determines the resin type data stored in the child storage unit 38 based on the address of each lighting device 1.
Figure 2008210588

次に、上記のように構成された第２の実施形態の照明システムの動作について説明する。図９は、本照明システムの動作のフローチャートを示す。まず、照明システム１０に電源が投入されると（Ｓ１１）、親制御部５６は接続されている各照明装置１のアドレスを、通信部５５と通信部３９を介して読み出し、各照明装置１の台数を把握する（Ｓ１２）。次に、子記憶部３８に記憶された樹脂の種類を示すデータを読み出し（Ｓ１３）、装置データ認識部５４が、各照明装置１のアドレスを基に、各照明装置１内のＬＥＤ２１、２２、２３における樹脂の種類のデータを判別し、各照明装置１における、各色のＬＥＤ２１、２２、２３毎の樹脂の種類の情報を親記憶部５３に保存する。次に、操作部５１にて設定されたＬＥＤユニット２の点灯演出パターンの情報を読み取り（Ｓ１４）、親記憶部５３に記憶された各色のＬＥＤの累積点灯時間を読み出す（Ｓ１５）。   Next, operation | movement of the illumination system of 2nd Embodiment comprised as mentioned above is demonstrated. FIG. 9 shows a flowchart of the operation of the illumination system. First, when the lighting system 10 is powered on (S11), the parent control unit 56 reads the address of each connected lighting device 1 via the communication unit 55 and the communication unit 39, and The number is grasped (S12). Next, data indicating the type of resin stored in the child storage unit 38 is read out (S13), and the device data recognition unit 54 determines the LEDs 21, 22 in each lighting device 1 based on the address of each lighting device 1. The data on the resin type in 23 is discriminated, and the information on the resin type for each of the LEDs 21, 22, 23 of each color in each lighting device 1 is stored in the parent storage unit 53. Next, the information of the lighting effect pattern of the LED unit 2 set by the operation unit 51 is read (S14), and the cumulative lighting time of each color LED stored in the parent storage unit 53 is read (S15).

次に、親制御部５６は、この累積点灯時間に基づいて、親記憶部５３に記憶されている光出力補正テーブルを参照し、所定の光出力を得るための各色のＬＥＤ２１、２２、２３に対応する出力比率データを読み出す（Ｓ１６）。そして、各色のＬＥＤ２１、２２、２３の調光レベルに応じた、各色のＬＥＤ２１、２２、２３の点灯デューティ比を算出し（Ｓ１７）、この算出したデータを通信部３５を介して各照明装置１の制御部３３に送信する（Ｓ１８）。各照明装置１の制御部３３は、受信したデータに基づいて、この点灯デューティ比を点灯スイッチ部３２に点灯動作信号として送信する。以下、Ｓ１９からＳ２３まで動作は、第１の実施形態にて説明したＳ６からＳ１０の動作に対応している。   Next, the parent control unit 56 refers to the light output correction table stored in the parent storage unit 53 based on the accumulated lighting time, and sets the LEDs 21, 22, and 23 for each color to obtain a predetermined light output. Corresponding output ratio data is read (S16). Then, the lighting duty ratios of the LEDs 21, 22, 23 of each color corresponding to the dimming levels of the LEDs 21, 22, 23 of each color are calculated (S 17), and the calculated data is sent to each lighting device 1 via the communication unit 35. To the control unit 33 (S18). The control unit 33 of each lighting device 1 transmits the lighting duty ratio to the lighting switch unit 32 as a lighting operation signal based on the received data. Hereinafter, the operations from S19 to S23 correspond to the operations from S6 to S10 described in the first embodiment.

本実施形態に係る照明システムによれば、親機５のみが各照明装置１内における樹脂毎の光出力補正テーブルを所有すればよいので、簡便であってコストパフォーマンスに優れた照明システムが得られる。   According to the illumination system according to the present embodiment, since only the master unit 5 has to own the light output correction table for each resin in each illumination device 1, a simple illumination system with excellent cost performance can be obtained. .

（第３の実施形態）
本発明の第３の実施形態に係る照明システムについて図１０乃至図１２を参照して説明する。第３の実施形態の照明システム１０は、ＬＥＤユニット２をＰＷＭ制御せずに定電流制御する点で、第２の実施形態と異なる。図１０及び図１１は、本実施形態に係る照明システムにおける照明装置１の概略構成を示す。点灯スイッチ部３２は、第２の実施形態に類似しているが、図２に示される点灯制御用の第２ドライバ３２６及びＦＥＴ３２７の代わりに、定電流回路部３２８が設けられている点において相違している。また、子記憶部３８には、第２の実施形態と異なり、各色のＬＥＤ２１、２２、２３の個々のバラツキを初期状態において補正したデータをさらに記憶させる。この補正したデータは、照明装置１の稼動前の初期状態、例えば工場出荷時等において検出した各色のＬＥＤ２１、２２、２３の光出力、電圧値及び電流値に基づいて、各色のＬＥＤ２１、２２、２３を点灯制御するための駆動電流値を、基準となる光出力が得られる所定の値に補正したものである。 (Third embodiment)
An illumination system according to a third embodiment of the present invention will be described with reference to FIGS. The illumination system 10 of the third embodiment is different from the second embodiment in that the LED unit 2 is subjected to constant current control without PWM control. 10 and 11 show a schematic configuration of the illumination device 1 in the illumination system according to the present embodiment. The lighting switch unit 32 is similar to the second embodiment, but is different in that a constant current circuit unit 328 is provided instead of the second driver 326 and the FET 327 for lighting control shown in FIG. is doing. Further, unlike the second embodiment, the child storage unit 38 further stores data obtained by correcting individual variations of the LEDs 21, 22, and 23 of the respective colors in the initial state. This corrected data is obtained based on the light output, voltage value, and current value of each color LED 21, 22, 23 detected in the initial state before operation of the lighting device 1, for example, at the time of factory shipment. The drive current value for controlling the lighting of the light source 23 is corrected to a predetermined value that provides a reference light output.

図１２は、上記駆動電流値を補正するための回路構成を示す。この回路構成においては、工場出荷時等において上記補正を行う対象のＬＥＤ８を所定の基準の制御量（例えば、５０％出力）で点灯させ、そのときの光出力をセンサ９で測定する。センサ９は、予め基準の制御量に対応する光出力の基準値を有しているので、その基準値になるように駆動電流値を調整可能であり、調整後と調整前の駆動電流値の比率を子記憶部３８に記憶させ、ＬＥＤユニット２が定電流制御されることを利用して、光出力補正テーブルによる光出力の補正に反映させるようにする。   FIG. 12 shows a circuit configuration for correcting the drive current value. In this circuit configuration, the LED 8 to be corrected is lighted with a predetermined reference control amount (for example, 50% output) at the time of factory shipment or the like, and the light output at that time is measured by the sensor 9. Since the sensor 9 has a reference value of the optical output corresponding to the reference control amount in advance, the drive current value can be adjusted to be the reference value, and the drive current value after adjustment and before adjustment can be adjusted. The ratio is stored in the child storage unit 38 and is reflected in the correction of the light output by the light output correction table by utilizing the constant current control of the LED unit 2.

第３の実施形態に係る照明システムによれば、照明装置の稼動前の初期状態において目視でＬＥＤの色合いを修正する等の光出力調整工程を設けることなく、各色のＬＥＤ２１、２２、２３の個々の製造ばらつきを補正することができるので、寿命末期時においても、より安定した点灯動作を行うことができる。   According to the illumination system according to the third embodiment, each of the LEDs 21, 22, and 23 of each color is individually provided without providing a light output adjustment process such as visually correcting the shade of the LED in an initial state before the operation of the illumination device. Therefore, a more stable lighting operation can be performed even at the end of the lifetime.

なお、本発明は、上記各種実施形態の構成に限られず、発明の趣旨を変更しない範囲で種々の変形が可能である。例えば、光出力補正テーブルを、樹脂が封止する発光ダイオードチップの種類に応じて、さらに細分化したものであってもよい。また、ＬＥＤユニットに安価な温度センサを設け、ＬＥＤの温度又はその周辺温度を検出し、温度変化によるＬＥＤの光束劣化を補正する機能を付加したものであってもよい。   In addition, this invention is not restricted to the structure of the said various embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, the light output correction table may be further subdivided according to the type of light emitting diode chip sealed with resin. In addition, an inexpensive temperature sensor may be provided in the LED unit, and the function of detecting the temperature of the LED or its surroundings and correcting the deterioration of the luminous flux of the LED due to the temperature change may be added.

本発明の第１の実施形態に係る照明装置を示すブロック構成図。The block block diagram which shows the illuminating device which concerns on the 1st Embodiment of this invention. 同照明装置を示す図であって、部分的に（電源部、点灯スイッチ部及びＬＥＤユニット）回路構成を示すブロック構成図。It is a figure which shows the same illuminating device, Comprising: The block block diagram which shows a circuit structure partially (a power supply part, a lighting switch part, and an LED unit). 同照明装置の記憶部内のデータを示す概略図。Schematic which shows the data in the memory | storage part of the illumination device. 同照明装置の点灯スイッチ部に送信される各色のＬＥＤ毎の信号の一例を示す波形図。The wave form diagram which shows an example of the signal for every LED of each color transmitted to the lighting switch part of the illumination device. 本照明装置のＬＥＤユニットを点灯制御するための一連の動作を示すフローチャート。The flowchart which shows a series of operation | movement for carrying out lighting control of the LED unit of this illuminating device. 本発明の第２の実施形態に係る照明システムを示すブロック構成図。The block block diagram which shows the illumination system which concerns on the 2nd Embodiment of this invention. 同照明システムの照明装置を示すブロック構成図。The block block diagram which shows the illuminating device of the illumination system. 同照明システムの親機を示すブロック構成図。The block block diagram which shows the main | base station of the lighting system. 本照明システムの各照明装置内のＬＥＤユニットを点灯制御するための一連の動作を示すフローチャート。The flowchart which shows a series of operation | movement for carrying out lighting control of the LED unit in each illuminating device of this illumination system. 本発明の第３実施形態に係る照明システムの照明装置を示すブロック構成図。The block block diagram which shows the illuminating device of the illumination system which concerns on 3rd Embodiment of this invention. 同照明装置を示す図であって、部分的に（電源部、点灯スイッチ部及びＬＥＤユニット）回路構成を示すブロック構成図。It is a figure which shows the same illuminating device, Comprising: The block block diagram which shows a circuit structure partially (a power supply part, a lighting switch part, and an LED unit). 初期状態において同照明装置のＬＥＤを点灯制御するための駆動電流値を補正する際のブロック構成図。The block block diagram at the time of correct | amending the drive current value for carrying out lighting control of LED of the illumination device in an initial state.

符号の説明Explanation of symbols

１ 照明装置
２ ＬＥＤユニット
３ 点灯装置
４ 商用電源
５ 親機
８ ＬＥＤ
１０ 照明システム
２１ 赤色ＬＥＤ
２２ 緑色ＬＥＤ
２３ 青色ＬＥＤ
２４ 電気抵抗
３１ 電源部
３２ 点灯スイッチ部
３３ 制御部
３４ タイマ部
３５ 記憶部
３６ 切替部
３７ 演算部
３８ 子記憶部
３９ 通信部
５１ 操作部
５２ タイマ部
５３ 親記憶部
５４ 装置データ認識部
５５ 通信部
５６ 親制御部
３２１ 第１ドライバ
３２２ トランジスタ
３２３ ダイオード
３２４ チョークコイル
３２５ コンデンサ
３２６ 第２ドライバ
３２７ ＦＥＴ
３２８ 定電流回路部 1 Lighting Device 2 LED Unit 3 Lighting Device 4 Commercial Power Supply 5 Master Unit 8 LED
10 Lighting system 21 Red LED
22 Green LED
23 Blue LED
24 electric resistance 31 power supply unit 32 lighting switch unit 33 control unit 34 timer unit 35 storage unit 36 switching unit 37 calculation unit 38 child storage unit 39 communication unit 51 operation unit 52 timer unit 53 parent storage unit 54 device data recognition unit 55 communication unit 56 Parent Control Unit 321 First Driver 322 Transistor 323 Diode 324 Choke Coil 325 Capacitor 326 Second Driver 327 FET
328 Constant current circuit

Claims (4)

発光ダイオードチップを樹脂封止して発光源を形成して成るＬＥＤを点灯させる照明装置であって、
前記ＬＥＤの累積点灯時間に応じた前記樹脂の光透過率の変化が前記ＬＥＤの光出力に及ぼす影響を補正するためのデータテーブルを記憶する記憶部と、
このデータテーブルによって前記ＬＥＤの光出力を補正して当該ＬＥＤを点灯制御する制御部とを備え、
前記制御部は、前記照明装置の稼動前の初期状態において検出した前記ＬＥＤの光出力、電圧値及び電流値に基づいて、前記ＬＥＤを点灯制御するための駆動電流値を、基準となる光出力が得られる所定の値に補正することを特徴とする照明装置。 An illumination device for lighting an LED formed by sealing a light emitting diode chip to form a light emitting source,
A storage unit for storing a data table for correcting an influence of a change in the light transmittance of the resin according to the cumulative lighting time of the LED on the light output of the LED;
A controller that controls the lighting of the LED by correcting the light output of the LED according to the data table;
The control unit uses a light output, a voltage value, and a current value of the LED detected in an initial state before the operation of the lighting device as a reference, and a drive current value for controlling the lighting of the LED as a reference light output Is corrected to a predetermined value that can be obtained. 前記ＬＥＤは、赤、緑、青の各色のＬＥＤから成り、前記各色のＬＥＤの光出力を補正する補正係数を演算するための演算部を備え、
前記制御部は、前記演算部の演算によって得られた補正係数を用いて、所定の色度が得られるように前記各色のＬＥＤを点灯制御することを特徴とする請求項１に記載の照明装置。 The LED is composed of LEDs of red, green, and blue colors, and includes a calculation unit for calculating a correction coefficient for correcting the light output of the LED of each color,
2. The lighting device according to claim 1, wherein the control unit controls lighting of the LEDs of the respective colors so as to obtain predetermined chromaticity using the correction coefficient obtained by the calculation of the calculation unit. . 前記データテーブルは、前記樹脂の種類に応じて複数定められると共に、このデータテーブルを切り替える切替部を設けたことを特徴とする請求項１又は請求項２に記載の照明装置。   The lighting device according to claim 1, wherein a plurality of the data tables are determined according to the type of the resin, and a switching unit that switches the data tables is provided. 請求項１乃至請求項３のいずれか一項に記載の複数の照明装置と、前記照明装置に接続して、前記データテーブルを基に前記照明装置を子機として、その点灯状態を個別に管理する親機とを備えた照明システムであって、
前記親機は、前記各照明装置に前記データテーブルを備える代わりに前記データテーブルを備えていることを特徴とする照明システム。 A plurality of lighting devices according to any one of claims 1 to 3 and the lighting device are connected to the lighting device, and the lighting device is managed as a slave unit based on the data table, and the lighting state is individually managed. A lighting system equipped with a master unit,
The said main | base station is equipped with the said data table instead of providing the said data table in each said illuminating device, The illumination system characterized by the above-mentioned.
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