JP3951504B2 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
JP3951504B2
JP3951504B2 JP15295599A JP15295599A JP3951504B2 JP 3951504 B2 JP3951504 B2 JP 3951504B2 JP 15295599 A JP15295599 A JP 15295599A JP 15295599 A JP15295599 A JP 15295599A JP 3951504 B2 JP3951504 B2 JP 3951504B2
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JP
Japan
Prior art keywords
dimming
illuminance
correction
data
lighting
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JP15295599A
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Japanese (ja)
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JP2000348876A (en
Inventor
啓泰 竹内
和史 長添
智美 安田
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system capable of correcting the initial illuminance corresponding to a space (a store, for example), etc., for varying light modulating levels in accordance with differences of reflectivity of a floor or time (time instant), etc., and of reducing a device in size. SOLUTION: This lighting system is constituted of a plurality of luminaires 4, a light modulation signal output part 3 for outputting the light modulation signal for controlling the light output of the plurality of luminaires 4, and a data correction operating part 2 for correcting the light modulation signal outputted from the light modulation signal output part 3. The data correction operating part 2 operates the data correction according to a luminous flux decreasing characteristic correction light modulation data table 1, a lighting hour timer 6, a clock 5 and a reflectivity correction table 7. A reflectivity selecting switch 8 selects the reflectivity of the space to be used or a radiated surface.

Description

【0001】
【発明の属する利用分野】
本発明は照明装置に関するものであり、更に詳しくは、初期照度補正を行い得る省エネ型の照明装置に関する。
【0002】
【従来の技術】
近年、地球環境保護の視点から省エネが注目されており、照明装置においても、色々な用途で快適さを損なうことなく省エネが達成できるものが提案されている。
【0003】
本発明に係る従来例としては、特開昭64−89287号公報に示したものがあり、それは、時間の経過に応じて照度補正値を演算する照度補正値演算装置と、照度補正値に基づいて調光制御信号を補正して送出する調光制御端末器とを備えることにより、常時適切な照度を確保できるようにするものである。
【0004】
ここで、照度補正値演算装置は、時間の経過に伴う光束低下特性を器具毎に記憶させたメモリと、進行する汚れによる光束低下特性を器具別に記憶させたメモリと、時計手段の出力値が所定数変化する度に、それぞれ初期照度を維持する照度補正値を演算し、両補正値を加算して出力する演算手段とを備えるものであり、調光制御端末器は、伝送線から送信される調光デ−タを入力し、調光制御信号を補正して送出するものである
【0005】
【発明が解決しようとする課題】
しかし、上記従来例では、以下に示すような問題点が生じてしまう。
【0006】
上記従来例では、時間の経過や進行する汚れに伴う光束低下特性をデータとして器具毎に記憶させているが、器具毎に予めデータを記憶している為に、色々な用途や状況に応じた照明制御に対応しにくい。つまり、床面などの反射率の違いや時間(時刻)に応じて調光レベルを変化させる空間(例えば店舗)などには対応しにくく、要求された照度が得られなくなってしまう。このような要求に対応するには、更に必要なデータを記憶することなどが必要となり、メモリの大型化、装置の大型化を招いてしまう。
【0007】
本発明は上記問題点に鑑みてなされたもので、その目的とするところは、床面などの反射率の違いや時間(時刻)等に応じて調光レベルを変化させる空間(例えば店舗)などにも対応した初期照度補正が可能で、装置の小型化が可能な照明装置を提供することである。
【0008】
【課題を解決するための手段】
記問題点を解決するために、請求項1記載の発明によれば、照明負荷と、前記照明負荷の光出力を制御する制御部と、複数の照度補正用データを選択する手段とを備える照明装置であって、前記照度補正用データは、前記照明負荷の累積点灯時間及び前記照明負荷の累積調光量に応じて選択されるものであり、前記制御部は、前記照明負荷の累積点灯時間及び累積調光量をカウントし、それぞれの累積点灯時間と累積調光量との積算を加算することにより平均照度を算出し該算出値により、照度補正用データを選択することを特徴とする。
【0009】
請求項2記載の発明によれば、請求項1記載の照明装置において、照度補正用データは、照射面の反射率に応じて選択されるものであることを特徴とする。
【0011】
請求項3記載の発明によれば、請求項1又は請求項2のいずれかに記載の照明装置において、前記照度補正用データは、前記照明負荷の種類に応じて選択されるものであることを特徴とする。
【0012】
請求項4記載の発明によれば、請求項1乃至請求項3のいずれかに記載の照明装置において、前記照度補正用データは、前記照明負荷を有する照明器具の種類に応じて選択されるものであることを特徴とする。
【0013】
請求項5記載の発明によれば、請求項1乃至請求項4のいずれかに記載の照明装置において、前記照度補正用データは、外光量に応じて選択されるものであることを特徴とする。
【0015】
【実施の形態】
(実施の形態1)
本発明に係る第1の実施の形態のブロック構成図を図1に示す。
【0016】
本構成は、複数の照明器具4と、複数の照明器具4の光出力を制御する為の調光信号を出力する調光信号出力部3と、調光信号出力部3から出力される調光信号を補正するデータ補正演算部2とからなり、データ補正演算部2は、光束低下特性補正調光データテーブル1と点灯時間タイマ6と時計5と反射率補正テーブル7とからの信号に応じて、データ補正を演算するものである。8は、使用する空間あるいは被照射面の反射率を選択する反射率選択SWである。
【0017】
ここで、図2(a)に示す様に、光源(例えば、低圧放電灯)の時間の経過に対する光束低下特性(光束減退)を補正するような光束低下特性補正データテーブル1を記憶しておく。また、図2(b)に示す様に、反射率に応じた反射率補正テーブル7(図2(b)中のA、B、C)を記憶しておく。図2(b)中において、反射率の低い場合にはBが選択され、高くなるほど、A→B→Cと選択を変える。
【0018】
以下、動作を簡単に説明する。
使用者は、反射率選択SW8にて、使用する空間あるいは被照射面の反射率を適切に選択する。反射率の低い場合には照度が低くなるため、図2(b)のBに示す調光データテーブルの様に、初期の時点から標準よりも高めの設定になるような反射率補正テーブル7が選択される。反射率の高い場合には照度が低くなるため、図2(b)のCに示す調光データテーブルの様に、初期の時点から標準よりも低めの設定になるような反射率補正テーブル7が選択される。この様に選択された反射率補正テーブル7と、前述の光束低下特性補正データテーブル1と、点灯時間タイマ6と、時計5とからの信号に応じて、データ補正演算部2にて、その時点での最適調光データが演算されて調光信号出力部3に送出され、照明器具4が調光点灯する。以後、点灯時間タイマ6の出力値により最適調光データが変化し、照明器具4の調光レベルが変化し、常に、適正照度が得られる。
【0019】
以上の様に構成することにより、標準の光束低下特性補正テーブルに対して現実の被照射面などの反射率の違いによる設計照度のずれを補正する場合や、照度設定レベルを変えたい場合に、反射率選択SWを切り替えることにより簡単で自由に設計できる。なお、ここでは、データ補正演算部2により演算しているが、反射率や光束低下などを考慮した複数の補正データテーブルを選択SWなどで選択する様な構成であってもよい。また、照明器具4の台数はいくつでも構わない。また、照明器具4は、互いに直列に接続されても、並列に接続されても、直並列に接続されても構わない。
【0020】
(実施の形態2)
本発明に係る第2の実施の形態のブロック構成図を図3に示す。
【0021】
図1に示した第1の実施の形態と異なる点は、調光比設定部10と、調光比設定部10によって設定されるタイム調光テーブル9と、累積調光時間カウント部11とを設けて、例えば、図5に示すようなタイム調光テーブルで調光点灯させる場合の適正照度補正を行う様に構成したことであり、その他の第1の実施の形態と同一構成には同一符号を付すことより説明を省略する。
【0022】
ここで、図5に示す様なタイム調光テーブル(AM8時からPM6時までは照度比を50%、PM6時からPM9時までは照度比を70%、PM9時からAM8時までは消灯)を記憶しておく。また、図4(a)に示す様に、光源(例えば、低圧放電灯)の時間の経過に対する光束低下特性(光束減退)を補正するような光束低下特性補正データテーブル1を記憶しておく。また、図4(b)は、各調光比(例えば、100%、70%、50%)で調光時における調光データの変化を示し、図4(c)は、調光信号出力部3からの出力を示している。
【0023】
以下、動作を簡単に説明する。
点灯開始後、累積調光時間カウント部11にて、光源の累積点灯時間と累積調光量とをカウントする。例えば、全点灯時間が1000時間、照度比50%が750時間、照度比70%が250時間とすると、平均照度比=(0.5×750+0.7×250)/1000=55(%)となるので、全点灯時間に対して55%の照度比で点灯されたと判断する。そして、55%調光時の光束低下特性から得られる調光比データテーブルを読み出し、データ補正演算部2にて、その時点での最適調光データが演算されて調光信号出力部3に送出され、照明器具4が調光点灯する。例えば、55%調光時の調光比データテーブルを読み出し、例えば調光比73%のデータに、設定値(AM8時からPM6時までは照度比を50%、PM6時からPM9時までは照度比を70%)を掛け合わせて補正ずる。
【0024】
以上の様に構成することにより、タイムスケジュール制御にも対応した補正ができ、図4(c)に示すように、ある時間間隔毎に調光信号出力部3の出力を変化できるので、更なる省エネができ、ランプ交換寿命を長くすることができる。(一般に、調光した場合にはランプ管壁温度が下がるために、予熱条件さえ適切に設定すれば、調光した場合にはランプ寿命は長くなることが知られている。)なお、ここでは、1000時間毎に補正しているが、100時間毎や200時間毎など、その時間間隔は任意に設定すればよい。
【0025】
(実施の形態3)
本発明に係る第3の実施の形態のブロック構成図を図6に示す。
【0026】
図1に示した第1の実施の形態と異なる点は、器具種類選択SW13と、器具種類選択SW13によって選択される器具種類補正テーブル12とを設けて、器具としての時間の経過に対する光束低下特性が異なるために、器具種類(例えば、富士型器具、埋め込み型器具、ホルダー器具などに分類する。)に応じて適正照度補正を行う様に構成したことであり、その他の第1の実施の形態と同一構成には同一符号を付すことより説明を省略する。
【0027】
この様に選択された器具種類補正テーブル12と、前述の光束低下特性補正データテーブル1と、点灯時間タイマ6と、時計5とからの信号に応じて、データ補正演算部2にて最適調光データが演算されて調光信号出力部3に送出され、照明器具4が調光点灯する。以後、点灯時間タイマ6の出力値により最適調光データが変化し、照明器具4の調光レベルが変化する。以後、点灯時間タイマ6の出力値により最適調光データが変化し、照明器具4の調光レベルが変化し、常に、適正照度が得られる。
【0028】
なお、器具種類選択SW13は、器具タイプのみならず、光源の種類を選択するものであってもよく、器具種類と光源の種類とを合わせて選択するものであっても良い。また、複数のゾーンで異なる照明器具4を制御するものであっても良く、この場合には、器具種類選択SW13を複数種類用いても良い。)
(実施の形態4)本発明に係る第4の実施の形態のブロック構成図を図に示す。
【0029】
図1に示した第1の実施の形態と異なる点は、エリア調光A選択SW17と、エリア調光B選択SW18と、エリア調光C選択SW19と、エリア調光A選択SW17乃至エリア調光C選択SW19の各々の選択によって選択されるエリアA補正テーブル14と、エリアB補正テーブル15と、エリアC補正テーブル16とを設けて、制御エリア毎に適正照度補正を行う様に構成したことであり、その他の第1の実施の形態と同一構成には同一符号を付すことより説明を省略する。
【0030】
以下、簡単に説明する。
エリアAが窓際で常に外光が入る個所、エリアCは廊下など人の利用頻度は少ないが明かりは必要な個所、エリアBは、エリアAとエリアCとの間に挟まれた個所とし、エリアAの照度比は50%、エリアBの照度比は100%、エリアCの照度比は30%と選択する。そして、エリアA補正テーブル14乃至エリアC補正テーブル16と、前述の光束低下特性補正データテーブル1と、点灯時間タイマ6と、時計5とからの信号に応じて、データ補正演算部2にて最適調光データが演算される。図8に示す様に、エリアAでは、初期(0h)には、照度比50%×光束低下曲線から予め設定されている基準調光比(ここでは70%)=35%とし、5000時間経過後には50%×85%=42.5%とし、10000時間経過後には50%×100%=50%、とする。以下、各エリアとも同様に演算する。そして、その演算されたデータが調光信号出力部3に送出され、照明器具4が調光点灯する。以後、点灯時間タイマ6の出力値により最適調光データが変化し、照明器具4の調光レベルが変化し、常に、適正照度が得られる。
【0031】
(実施の形態5)本発明に係る第5の実施の形態のブロック構成図を図に示す。
【0032】
図1に示した第1の実施の形態と異なる点は、外光を検知する外光センサ21と、外光センサ21の検知値に応じて選択されるセン情報補正テーブル20とを設けて、外光に応じて適正照度補正を行う様に構成したことであり、その他の第1の実施の形態と同一構成には同一符号を付すことより説明を省略する。
【0033】
以下、簡単に説明する。エリアAが窓際で常に外光が入る個所、エリアBは窓よりも少し離れた個所、エリアBは、エリアCは窓よりも遠く離れた個所とすると、外光センサ21の検知値に応じてセン情報補正テーブル20が選択され、例えば、外光が多いときには、エリアAは30%、エリアBは50%、エリアCは70%が選択される。そして、セン情報補正テーブル20と、前述の光束低下特性補正データテーブル1と、点灯時間タイマ6と、時計5とからの信号に応じて、データ補正演算部2にて最適調光データが演算される。ここで、演算の方法は図8に示すようなものを用いても良く、他の手段であっても良い。そして、その演算されたデータが調光信号出力部3に送出され、照明器具4が調光点灯する。以後、点灯時間タイマ6の出力値により最適調光データが変化し、照明器具4の調光レベルが変化し、常に、適正照度が得られる。
【0034】
なお、上記全ての実施の形態は、本発明の作用効果を満たすものであれば、適宜組み合わせても良い。また、調光信号は、PWM信号であっても良いし、DC信号であっても良いし、他のものであっても良い。また、調光信号は、デジタル伝送信号であっても良く、この場合、照明器具4側に伝送端末を設置するように構成しても良い。また、光源は、直管の低圧放電灯であっても、環型の低圧放電灯であっても、HIDランプの様な高圧放電灯であっても良い。
【0035】
【発明の効果】
請求項1乃至請求項に記載の発明によれば、床面などの反射率の違いや時間(時刻)等に応じて調光レベルを変化させる空間(例えば店舗)などにも対応した初期照度補正が可能で、装置の小型化が可能な照明装置を提供できる。
【図面の簡単な説明】
【図1】本発明に係る第1の実施の形態のブロック構成図を示す。
【図2】本発明に係る第1の実施の形態の、(a)光束低下特性,(b)調光データテーブルを示す。
【図3】本発明に係る第2の実施の形態のブロック構成図を示す。
【図4】本発明に係る第2の実施の形態の、(a)光束低下特性,(b)調光データテーブル、(c)データ補正演算部出力を示す。
【図5】本発明に係る第2の実施の形態のタイムスケジュール制御の一例を示す。
【図6】本発明に係る第3の実施の形態のブロック構成図を示す。
【図7】本発明に係る第4の実施の形態のブロック構成図を示す。
【図8】本発明に係る第4の実施の形態の、演算方法の一例を示す。
【図9】本発明に係る第5の実施の形態のブロック構成図を示す。
【符号の説明】
4 照明器具
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device, and more particularly to an energy-saving lighting device capable of performing initial illuminance correction.
[0002]
[Prior art]
In recent years, energy saving has attracted attention from the viewpoint of protecting the global environment, and lighting devices that can achieve energy saving without impairing comfort in various applications have been proposed.
[0003]
As a conventional example according to the present invention, there is one disclosed in Japanese Patent Application Laid-Open No. 64-89287, which is based on an illuminance correction value calculation device that calculates an illuminance correction value over time, and an illuminance correction value. By providing a dimming control terminal that corrects and sends out the dimming control signal, an appropriate illuminance can be secured at all times.
[0004]
Here, the illuminance correction value calculation device includes a memory that stores luminous flux reduction characteristics with time for each instrument, a memory that stores luminous flux degradation characteristics due to advancing dirt for each instrument, and an output value of the clock means. And calculating means for calculating an illuminance correction value for maintaining the initial illuminance each time a predetermined number of changes are made, and adding and outputting both correction values. The dimming control terminal is transmitted from the transmission line. Dimming data is input, and the dimming control signal is corrected and transmitted.
[Problems to be solved by the invention]
However, in the above conventional example, the following problems occur.
[0006]
In the above-described conventional example, the light flux reduction characteristics associated with the passage of time and progressing dirt are stored as data for each instrument, but since data is stored in advance for each instrument, it corresponds to various applications and situations. Difficult to support lighting control. That is, it is difficult to deal with a space (for example, a store) where the dimming level is changed according to a difference in reflectance such as a floor surface or time (time), and the required illuminance cannot be obtained. In order to respond to such a request, it is necessary to store necessary data, which leads to an increase in the size of the memory and the size of the apparatus.
[0007]
The present invention has been made in view of the above problems, and its object is to provide a space (for example, a store) in which the dimming level is changed according to a difference in reflectance such as a floor surface or time (time). It is also possible to provide an illuminating device that can correct the initial illuminance and can reduce the size of the device.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, according to the first aspect of the present invention, there is provided an illumination load, a control unit for controlling the light output of the illumination load, and means for selecting a plurality of illuminance correction data. In the apparatus, the illuminance correction data is selected in accordance with the cumulative lighting time of the lighting load and the cumulative dimming amount of the lighting load , and the controller is configured to calculate the cumulative lighting time of the lighting load. In addition, the cumulative illuminance is counted, and the average illuminance is calculated by adding the cumulative lighting time and the cumulative dim amount, and the illuminance correction data is selected based on the calculated value .
[0009]
According to a second aspect of the present invention, in the illuminating device according to the first aspect, the illuminance correction data is selected in accordance with the reflectance of the irradiated surface.
[0011]
According to a third aspect of the present invention, in the illumination device according to the first or second aspect, the illuminance correction data is selected according to the type of the illumination load. Features.
[0012]
According to a fourth aspect of the present invention, in the illumination device according to any one of the first to third aspects, the illuminance correction data is selected in accordance with a type of the luminaire having the illumination load. It is characterized by being.
[0013]
According to a fifth aspect of the present invention, in the illumination device according to any one of the first to fourth aspects, the illuminance correction data is selected in accordance with an external light amount. .
[0015]
[Embodiment]
(Embodiment 1)
FIG. 1 shows a block diagram of the first embodiment according to the present invention.
[0016]
This configuration includes a plurality of lighting fixtures 4, a dimming signal output unit 3 that outputs a dimming signal for controlling the light output of the plurality of lighting fixtures 4, and a dimming output from the dimming signal output unit 3. The data correction calculation unit 2 corrects the signal, and the data correction calculation unit 2 responds to signals from the light flux reduction characteristic correction dimming data table 1, the lighting time timer 6, the clock 5, and the reflectance correction table 7. The data correction is calculated. Reference numeral 8 denotes a reflectance selection SW for selecting the reflectance of the space to be used or the surface to be illuminated.
[0017]
Here, as shown in FIG. 2 (a), a light flux reduction characteristic correction data table 1 for correcting a light flux reduction characteristic (light flux degradation) over time of a light source (for example, a low pressure discharge lamp) is stored. . Further, as shown in FIG. 2B, a reflectance correction table 7 (A, B, C in FIG. 2B) corresponding to the reflectance is stored. In FIG. 2B, B is selected when the reflectance is low, and the selection is changed from A → B → C as the reflectance increases.
[0018]
The operation will be briefly described below.
The user appropriately selects the reflectance of the space to be used or the surface to be illuminated by the reflectance selection SW8. Since the illuminance is low when the reflectance is low, the reflectance correction table 7 is set higher than the standard from the initial time point, as in the dimming data table shown in B of FIG. Selected. Since the illuminance is low when the reflectance is high, the reflectance correction table 7 that is set lower than the standard from the initial time point is provided as in the dimming data table shown in C of FIG. Selected. In accordance with signals from the reflectance correction table 7 selected in this way, the above-described light flux reduction characteristic correction data table 1, the lighting time timer 6, and the clock 5, the data correction calculation unit 2 performs the current time point. The optimal dimming data is calculated and sent to the dimming signal output unit 3, and the luminaire 4 is dimmed. Thereafter, the optimum dimming data changes according to the output value of the lighting time timer 6, the dimming level of the lighting fixture 4 changes, and appropriate illuminance is always obtained.
[0019]
By configuring as described above, when correcting a deviation in design illuminance due to a difference in reflectivity such as the actual irradiated surface with respect to a standard luminous flux reduction characteristic correction table, or when changing the illuminance setting level, It is possible to design easily and freely by switching the reflectance selection SW. Although the calculation is performed by the data correction calculation unit 2 here, a configuration may be adopted in which a plurality of correction data tables taking into account reflectivity, light flux reduction, and the like are selected by a selection SW or the like. Further, the number of lighting fixtures 4 is not limited. Moreover, the lighting fixtures 4 may be connected in series with each other, connected in parallel, or connected in series and parallel.
[0020]
(Embodiment 2)
FIG. 3 shows a block diagram of the second embodiment according to the present invention.
[0021]
The difference from the first embodiment shown in FIG. 1 is that a dimming ratio setting unit 10, a time dimming table 9 set by the dimming ratio setting unit 10, and a cumulative dimming time counting unit 11 are provided. For example, it is configured to perform appropriate illuminance correction when the dimming is performed with a time dimming table as shown in FIG. 5, and the same components as those in the first embodiment are denoted by the same reference numerals. The description is omitted by attaching.
[0022]
Here, a time dimming table as shown in FIG. 5 (the illuminance ratio is 50% from 8:00 am to 6:00 pm, the illuminance ratio is 70% from 6:00 pm to 9:00 pm, and is extinguished from 9:00 pm to 8:00 am). Remember. Further, as shown in FIG. 4A, a light flux reduction characteristic correction data table 1 for correcting a light flux reduction characteristic (light flux degradation) with the passage of time of a light source (for example, a low pressure discharge lamp) is stored. FIG. 4B shows a change in dimming data during dimming at each dimming ratio (for example, 100%, 70%, 50%), and FIG. 4C shows a dimming signal output unit. The output from 3 is shown.
[0023]
The operation will be briefly described below.
After the lighting is started, the cumulative dimming time counting unit 11 counts the cumulative lighting time of the light source and the cumulative dimming amount. For example, assuming that the total lighting time is 1000 hours, the illumination ratio 50% is 750 hours, and the illumination ratio 70% is 250 hours, the average illumination ratio = (0.5 × 750 + 0.7 × 250) / 1000 = 55 (%). Therefore, it is determined that the light is lit at an illuminance ratio of 55% with respect to the total lighting time. Then, a dimming ratio data table obtained from the light flux reduction characteristic at 55% dimming is read out, and the optimum dimming data at that time is calculated by the data correction calculation unit 2 and sent to the dimming signal output unit 3. Then, the lighting fixture 4 is dimmed. For example, the dimming ratio data table at 55% dimming is read, and for example, the illuminance ratio is 50% from 8 o'clock to PM 6 o'clock and the illuminance ratio from 6 o'clock to PM 9 o'clock is set to the data of 73% The ratio is corrected by multiplying by 70%).
[0024]
By configuring as described above, correction corresponding to time schedule control can be performed, and the output of the dimming signal output unit 3 can be changed at certain time intervals as shown in FIG. Energy saving can be achieved and the lamp replacement life can be extended. (In general, when the light is adjusted, the lamp tube wall temperature is lowered. Therefore, it is known that if the preheating conditions are set appropriately, the lamp life will be extended when the light is adjusted.) However, the time interval may be arbitrarily set, such as every 100 hours or every 200 hours.
[0025]
(Embodiment 3)
FIG. 6 shows a block diagram of the third embodiment according to the present invention.
[0026]
The difference from the first embodiment shown in FIG. 1 is that a device type selection SW 13 and a device type correction table 12 selected by the device type selection SW 13 are provided to reduce the luminous flux with respect to time as a device. Therefore, it is configured to perform appropriate illuminance correction according to the type of equipment (for example, classified into Fuji type equipment, embedded type equipment, holder equipment, etc.), and the other first embodiment The same components as those in FIG.
[0027]
In accordance with the signals from the appliance type correction table 12 selected in this way, the light flux reduction characteristic correction data table 1 described above, the lighting time timer 6 and the clock 5, the optimum light adjustment is performed by the data correction calculation unit 2. Data is calculated and sent to the dimming signal output unit 3, and the lighting fixture 4 is dimmed. Thereafter, the optimum dimming data changes depending on the output value of the lighting time timer 6, and the dimming level of the lighting fixture 4 changes. Thereafter, the optimum dimming data changes according to the output value of the lighting time timer 6, the dimming level of the lighting fixture 4 changes, and appropriate illuminance is always obtained.
[0028]
Note that the appliance type selection SW 13 may select not only the appliance type but also the type of the light source, or may select the combination of the appliance type and the type of the light source. Further, different lighting fixtures 4 may be controlled in a plurality of zones, and in this case, a plurality of types of fixture type selection SW 13 may be used. )
(Embodiment 4) FIG. 7 shows a block diagram of a fourth embodiment according to the present invention.
[0029]
1 differs from the first embodiment shown in FIG. 1 in that area dimming A selection SW17, area dimming B selection SW18, area dimming C selection SW19, and area dimming A selection SW17 to area dimming. By providing the area A correction table 14, the area B correction table 15, and the area C correction table 16 selected by each selection of the C selection SW 19, and configured to perform appropriate illuminance correction for each control area. Yes, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0030]
A brief description is given below.
Area A is a place where outside light is always incident by the window, Area C is a place where the use of light is low but is necessary for people such as a corridor, and Area B is a place between Area A and Area C. The illumination ratio of A is 50%, the illumination ratio of area B is 100%, and the illumination ratio of area C is 30%. Then, the data correction calculation unit 2 is optimal in accordance with signals from the area A correction table 14 to the area C correction table 16, the above-described light flux reduction characteristic correction data table 1, the lighting time timer 6, and the clock 5. Dimming data is calculated. As shown in FIG. 8, in area A, at the initial stage (0 h), a standard dimming ratio (in this case, 70%) = 35% set in advance from an illumination ratio of 50% × light flux reduction curve is set to 35%, and 5000 hours have elapsed. Later, 50% × 85% = 42.5%, and after 10,000 hours, 50% × 100% = 50%. Thereafter, the same calculation is performed for each area. Then, the calculated data is sent to the dimming signal output unit 3, and the lighting fixture 4 is dimmed. Thereafter, the optimum dimming data changes according to the output value of the lighting time timer 6, the dimming level of the lighting fixture 4 changes, and appropriate illuminance is always obtained.
[0031]
(Embodiment 5) FIG. 9 shows a block diagram of a fifth embodiment according to the present invention.
[0032]
First Embodiment differs from that shown in Figure 1, provided with an external light sensor 21 for detecting the external light, and a sensor information correction table 20 which is selected in accordance with the detection value of the external light sensor 21 The configuration is such that the appropriate illuminance correction is performed according to the external light, and the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
[0033]
A brief description is given below. Assuming that area A is always a place where outside light enters by the window, area B is a place slightly away from the window, and area B is a place far away from the window, the area C is a place far away from the window. sensor information correction table 20 is selected, for example, when external light is large, the area A is 30%, the area B is 50%, the area C 70% is is selected. Then, the sensor information correction table 20, a brightness decrease characteristic correction data table 1 above, the lighting time timer 6, according to a signal from the 5 which clock, the optimum dimming data by the data correction operation unit 2 calculation Is done. Here, the calculation method shown in FIG. 8 may be used, or other means may be used. Then, the calculated data is sent to the dimming signal output unit 3, and the lighting fixture 4 is dimmed. Thereafter, the optimum dimming data changes according to the output value of the lighting time timer 6, the dimming level of the lighting fixture 4 changes, and appropriate illuminance is always obtained.
[0034]
In addition, as long as the above-mentioned embodiments satisfy the operational effects of the present invention, they may be combined as appropriate. The dimming signal may be a PWM signal, a DC signal, or another signal. The dimming signal may be a digital transmission signal. In this case, a transmission terminal may be installed on the lighting fixture 4 side. The light source may be a straight tube low pressure discharge lamp, an annular low pressure discharge lamp, or a high pressure discharge lamp such as an HID lamp.
[0035]
【The invention's effect】
According to the first to fifth aspects of the invention, the initial illuminance corresponding to a space (for example, a store) in which the dimming level is changed according to a difference in reflectance such as a floor surface or time (time). It is possible to provide an illumination device that can be corrected and can be downsized.
[Brief description of the drawings]
FIG. 1 is a block diagram of a first embodiment according to the present invention.
FIGS. 2A and 2B show (a) luminous flux reduction characteristics and (b) a dimming data table according to the first embodiment of the present invention.
FIG. 3 is a block diagram of a second embodiment according to the present invention.
FIGS. 4A and 4B show (a) luminous flux reduction characteristics, (b) dimming data table, and (c) data correction calculation unit output according to the second embodiment of the present invention.
FIG. 5 shows an example of time schedule control according to the second embodiment of the present invention.
FIG. 6 is a block diagram showing a third embodiment according to the present invention.
FIG. 7 is a block diagram of a fourth embodiment according to the present invention.
FIG. 8 shows an example of a calculation method according to the fourth embodiment of the present invention.
FIG. 9 is a block diagram of a fifth embodiment according to the present invention.
[Explanation of symbols]
4 lighting equipment

Claims (5)

照明負荷と、前記照明負荷の光出力を制御する制御部と、複数の照度補正用データを選択する手段とを備える照明装置であって、前記照度補正用データは、前記照明負荷の累積点灯時間及び前記照明負荷の累積調光量に応じて選択されるものであり、前記制御部は、前記照明負荷の累積点灯時間及び累積調光量をカウントし、それぞれの累積点灯時間と累積調光量との積算を加算することにより平均照度を算出し該算出値により、照度補正用データを選択することを特徴とする照明装置。An illumination device comprising: an illumination load; a control unit that controls the light output of the illumination load; and a means for selecting a plurality of illuminance correction data. The illuminance correction data is a cumulative lighting time of the illumination load. And the control unit counts the cumulative lighting time and cumulative dimming amount of the lighting load, and the respective cumulative lighting time and cumulative dimming amount. An illuminating device characterized in that the average illuminance is calculated by adding the sum of the illuminance and the illuminance correction data is selected based on the calculated value . 前記照度補正用データは、照射面の反射率に応じて選択されるものであることを特徴とする請求項1記載の照明装置。  The illumination device according to claim 1, wherein the illuminance correction data is selected according to the reflectance of the irradiated surface. 前記照度補正用データは、前記照明負荷の種類に応じて選択されるものであることを特徴とする請求項1又は請求項2のいずれかに記載の照明装置。The illumination apparatus according to claim 1, wherein the illuminance correction data is selected according to a type of the illumination load. 前記照度補正用データは、前記照明負荷を有する照明器具の種類に応じて選択されるものであることを特徴とする請求項1乃至請求項3のいずれかに記載の照明装置。The illumination device according to any one of claims 1 to 3, wherein the illuminance correction data is selected according to a type of a lighting fixture having the illumination load. 前記照度補正用データは、外光量に応じて選択されるものであることを特徴とする請求項1乃至請求項4のいずれかに記載の照明装置。The illumination device according to any one of claims 1 to 4, wherein the illuminance correction data is selected according to an external light amount.
JP15295599A 1999-05-31 1999-05-31 Lighting device Expired - Fee Related JP3951504B2 (en)

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JP4742421B2 (en) * 2000-12-28 2011-08-10 東芝ライテック株式会社 Lighting control device
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