JP2006236875A - Illumination device - Google Patents

Illumination device Download PDF

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JP2006236875A
JP2006236875A JP2005052503A JP2005052503A JP2006236875A JP 2006236875 A JP2006236875 A JP 2006236875A JP 2005052503 A JP2005052503 A JP 2005052503A JP 2005052503 A JP2005052503 A JP 2005052503A JP 2006236875 A JP2006236875 A JP 2006236875A
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emitting diode
light emitting
light
circuit
rectangular wave
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Kenji Irisawa
健司 入澤
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Toki Corp
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Toki Corp
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device in which flashing operation suitable for decorative use is carried out. <P>SOLUTION: This is the illumination device using a light emitting diode of which each light emitting diode lamp flickers by stepless brightness change in irregular cycles based on a separate time constant, because the light emitting diode lamp having a flickering control circuit composed of a rectangular wave generating circuit, a delay circuit for delaying the rise and the fall time of a rectangular wave signal, and an amplifying circuit for amplifying a signal from the delay circuit are connected in parallel. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、発光ダイオードを用いた明滅を行う照明装置に関する。 The present invention relates to a lighting device that performs blinking using a light emitting diode.

従来より、ツリーイルミネーション等、装飾照明用途においては多数の発光体を異なる周期によって明滅させることにより装飾効果を高める試みがなされている、広く知られているものとしては、バイメタルを可動接点として用い、通電加熱により接点をオン・オフさせることで各電球を別個に点滅動作させる点滅球と呼ばれるものがある。 Conventionally, in decorative illumination applications such as tree illumination, attempts have been made to enhance the decoration effect by blinking a large number of light emitters with different periods, and as widely known, bimetal is used as a movable contact, There is what is called a flashing sphere in which each bulb is flashed separately by turning on and off the contact point by energization heating.

また、近年の発光ダイオードのさらなる高出力化、青色素子の登場によるフルカラー化により、消費電流も低く、長寿命、固体素子発光であるために素子が堅牢であるといった優れた点を持つ発光ダイオードランプを装飾照明においても用いる事が多くなっている。 In addition, light-emitting diode lamps with excellent features such as higher output of light-emitting diodes in recent years and full colorization due to the appearance of blue elements have low current consumption, long life, and solid-state light emission, so that the elements are robust. Are often used in decorative lighting.

しかしながら、従来の白熱電球が人に与えると言われている暖かみや、和らぎが求められる場合も多く、あえて白熱電球に似た色味を持つ電球色発光ダイオードと呼ばれる発光ダイオードを用いて白熱電球の代替とすることもある。 However, there are many cases where the warmth and softness that are said to be given to people by conventional incandescent light bulbs are required, and the incandescent light bulbs are used by using light-emitting diodes called light-bulb-colored light-emitting diodes that have colors similar to incandescent light bulbs. It may be an alternative.

同様に白熱電球による点滅球の代替となるような装飾用発光ダイオードランプが求められており、発光ダイオードランプを点滅動作させるために、点灯制御器に点滅制御信号を発信する機能を持たせ、通信線あるいは送電線を通して信号を送るといった方法が取られている。

特開昭６１−２９５６７７ Similarly, there is a need for a decorative light-emitting diode lamp that can replace a flashing bulb with an incandescent bulb. In order to cause the light-emitting diode lamp to blink, the lighting controller has a function to transmit a blinking control signal and communicate. The method of sending a signal through a line or a power transmission line is taken.

JP 61-295567

知られているように白熱電球のフィラメントの非点灯時の抵抗値は点灯時の１／１０程度となっており、バイメタルを用いて点滅駆動させる方式では、接点接続時に突入電流と呼ばれる大きな過渡電流が流れ、頻繁に接点のオンオフを行うこととなる点滅球では、寿命の大幅な低下を招いていた。 As is known, the resistance value when the filament of the incandescent bulb is not lit is about 1/10 that when the filament is lit, and in the method of blinking driving using bimetal, a large transient current called inrush current when connecting contacts In a flashing sphere that frequently turns contacts on and off, the life of the flashing bulb is significantly reduced.

また、点灯制御器を用いる方式で各個を独立に点滅させるには、それぞれに通信線を設ける必要があり、非常に多数の発光体が求められる装飾照明用途では現実的ではなく、実際には通信線の数を減少させるため、複数個を１組として点滅させる方法を取っていた。しかし、数個１組が同一のパターンで駆動するため、演出性に問題があった。 In addition, in order to blink each unit independently using the lighting controller method, it is necessary to provide a communication line for each unit, which is not practical for decorative lighting applications where a large number of light emitters are required. In order to reduce the number of lines, a method of blinking a plurality of lines as one set was employed. However, since several sets are driven with the same pattern, there is a problem in performance.

本発明は以上の課題に鑑み、装飾用途に適した点滅動作を行う照明装置を提供することを目的とする。 An object of this invention is to provide the illuminating device which performs the blink operation | movement suitable for a decoration use in view of the above subject.

矩形波信号を発振する矩形波発振回路と、矩形波信号の立ち上がり及び立ち下りを遅らせる積分回路と、前記積分回路からの信号を増幅する増幅手段とを有する明滅制御回路を備えた発光ダイオードランプを各個並列に接続を行うことにより、各個独立に無段階で輝度を上下させた点滅を行うことができる。 A light emitting diode lamp comprising a rectangular wave oscillation circuit that oscillates a rectangular wave signal, an integration circuit that delays rising and falling of the rectangular wave signal, and an amplifying means that amplifies the signal from the integration circuit. By connecting each in parallel, it is possible to perform blinking in which the brightness is raised and lowered independently of each other in a stepless manner.

発光ダイオードを用いた照明装置において、別途に通信線や、制御器が増加させることなく、各個の発光ダイオードランプが独立に無段階に輝度を上昇・下降させる明滅発光を行うことができる。 In an illuminating device using a light emitting diode, each light emitting diode lamp can perform flashing light emission that increases and decreases the brightness independently and continuously without increasing communication lines and controllers.

以下、図を用いて本発明および本発明の実施形態を説明する。
図１は本発明の発光ダイオードランプの回路構成を示す図である。
１０１は発光ダイオード、１０２、２０２、３０１、４０２は抵抗、１０３は整流ダイオード、２０１はシュミットインバータ、２０３，３０２はコンデンサ、４０１はトランジスタを示す。 Hereinafter, the present invention and embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a circuit configuration of a light emitting diode lamp of the present invention.
101 is a light emitting diode, 102, 202, 301 and 402 are resistors, 103 is a rectifier diode, 201 is a Schmitt inverter, 203 and 302 are capacitors, and 401 is a transistor.

ダイオード１０３は整流ダイオードであり、この整流ダイオードが接続されている事により、逆接続の際の逆起電力による素子の破壊を防止を図っている。 The diode 103 is a rectifier diode, and this rectifier diode is connected to prevent destruction of the element due to a counter electromotive force at the time of reverse connection.

シュミットインバータ２０１、抵抗１０２、２０２、コンデンサ２０３は矩形波発振回路を形成している。シュミットインバータ２０１の電源側に抵抗１０２が接続されていることにより、発振回路に流れる電圧値を定めている。 The Schmitt inverter 201, the resistors 102 and 202, and the capacitor 203 form a rectangular wave oscillation circuit. Since the resistor 102 is connected to the power supply side of the Schmitt inverter 201, the voltage value flowing in the oscillation circuit is determined.

初期状態のコンデンサ２０３の電荷がゼロの状態より、シュミットインバータ２０１への入力がＬレベルとされるため、Ｈレベルの出力が発生し、抵抗２０１、３０１を通してコンデンサ２０３、３０２に電荷が蓄積されてゆく。これによってコンデンサによる電圧がスレッショルド電圧Ｖｐまで上昇すると、シュミットインバータ２０１への入力がＨレベルとなり、Ｌレベル出力の状態となる。これよりコンデンサの電荷が抵抗を通して放出されていき、スレッショルド電圧Ｖnまで下降すると再度シュミットトリガへの入力はＬレベル状態となる。この繰り返しによって矩形波信号を発振する。図２はＰ点における発振した矩形波信号の電圧値の変動を示す図である。 Since the input to the Schmitt inverter 201 is set to the L level from the state where the charge of the capacitor 203 in the initial state is zero, an output of the H level is generated, and the charges are accumulated in the capacitors 203 and 302 through the resistors 201 and 301. go. As a result, when the voltage by the capacitor rises to the threshold voltage Vp, the input to the Schmitt inverter 201 becomes H level, and the L level output state is obtained. As a result, the charge of the capacitor is discharged through the resistor, and when the voltage drops to the threshold voltage Vn, the input to the Schmitt trigger is again in the L level state. By repeating this, a rectangular wave signal is oscillated. FIG. 2 is a diagram showing fluctuations in the voltage value of the oscillated rectangular wave signal at point P. In FIG.

さらに、抵抗３０１、コンデンサ３０２は積分回路による遅延回路を形成しており、前述の矩形波発振回路より発振された信号の立ち上がりおよび立ち下がりを、電圧変動コンデンサ３０２の電荷の蓄積・放出により遅らせている。図３は点Ｑにおける信号の電圧値の変動を示す図である。 Further, the resistor 301 and the capacitor 302 form a delay circuit by an integrating circuit, and delay the rise and fall of the signal oscillated from the above-described rectangular wave oscillation circuit by the accumulation and discharge of the electric charge of the voltage fluctuation capacitor 302. Yes. FIG. 3 is a diagram showing the fluctuation of the voltage value of the signal at the point Q.

トランジスタ４０１、抵抗４０２は増幅回路を形成している。
図１に示されるようにエミッタ接地増幅器を形成しており、上記遅延回路からの信号をエミッタ接地増幅器のベースに流すことにより増幅し、コレクタ電流が流れる。さらにコレクタ側に抵抗４０２を接続することにより、コレクタの電圧値を、同様にコレクタ側に接続された発光ダイオード１０１に応じた電圧値に調整することにより、発光ダイオード１０１を駆動させている。このことより、発光ダイオード１０１に流れる電流値は図３に示す波形に応じて増幅された電流が流れることとなる。発光ダイオード１０１の輝度は電流値に応じたものとなるため、無段階での輝度の上昇・下降が実現される。 The transistor 401 and the resistor 402 form an amplifier circuit.
As shown in FIG. 1, a grounded-emitter amplifier is formed, and a signal from the delay circuit is amplified by flowing it to the base of the grounded-emitter amplifier, and a collector current flows. Further, by connecting a resistor 402 to the collector side, the voltage value of the collector is similarly adjusted to a voltage value corresponding to the light emitting diode 101 connected to the collector side, thereby driving the light emitting diode 101. As a result, the current value that flows through the light emitting diode 101 is a current that is amplified according to the waveform shown in FIG. Since the luminance of the light emitting diode 101 is in accordance with the current value, the luminance can be increased and decreased in a stepless manner.

また、この発振回路の発振周期Ｔは以下の式によって与えられることが知られている。 Further, it is known that the oscillation period T of this oscillation circuit is given by the following equation.


Ｔ ＝ Ｃ＊Ｒ＊ｌｎ（（Ｖｄ−Ｖｎ）＊Ｖｐ／（Ｖｄ−Ｖｐ）＊Ｖｎ）

（Ｖｄ:電源電圧、Ｖｐ:Ｈレベルスレッショルド電圧、Ｖｎ：Ｌレベルスレッショルド電圧、Ｃ：コンデンサ電気容量 Ｒ：抵抗値とする）
T = C * R * ln ((Vd−Vn) * Vp / (Vd−Vp) * Vn)

(Vd: power supply voltage, Vp: H level threshold voltage, Vn: L level threshold voltage, C: capacitor capacitance R: resistance value)

通常、装飾照明用途における点滅周期は、１周期５，６秒を越えるような、非常に大きな値となることが多いが、各スレッショルド電圧は電源電圧とシュミットインバータによって決まっており、抵抗およびコンデンサはスペース上の問題から大きくすることができない。特にコンデンサの電気容量を大きくすると、コンデンサの大きさは非常に大きくなってしまう恐れがあり、各個のランプに取り付けるには問題があった。よって、周期の値を大きくするには電源電圧の値を極力小さくする必要がある。 In general, the blinking cycle in decorative lighting applications is often very large, exceeding 5 or 6 seconds per cycle, but each threshold voltage is determined by the power supply voltage and the Schmitt inverter. It cannot be enlarged due to space issues. In particular, when the electric capacity of the capacitor is increased, the size of the capacitor may become very large, and there is a problem in attaching to each lamp. Therefore, in order to increase the period value, it is necessary to reduce the power supply voltage value as much as possible.

そこで本実施例では、トランジスタ４０１は直流電流増幅率ｈＦＥが非常に大きなものを用いることによって、矩形波発振回路および遅延回路の駆動電圧を非常に小さくすることができ、コンデンサを小さいものとすることを可能としている。さらに各抵抗は薄膜抵抗を蒸着させる方法で取り付けることによって、さらなる小型化を図ることができ、各発光ダイオードランプへの回路を組み込みを、より容易にすることができる。 Therefore, in this embodiment, the transistor 401 having a very large DC current amplification factor hFE can be used to reduce the drive voltage of the rectangular wave oscillation circuit and the delay circuit, and to reduce the capacitor. Is possible. Furthermore, each resistor can be further reduced in size by attaching a thin film resistor by a vapor deposition method, and a circuit can be easily incorporated into each light emitting diode lamp.

なお、抵抗値やコンデンサの電気容量の値を変化させることにより、発振周期および遅延時間を調整することができるため、用途に応じて点滅間隔、ピーク時の点灯継続時間の調整を行うことができる。ただし、遅延時間が発振周波数に対して長すぎると、最大電流値が落ち込んでしまうため、値を設定する際には留意する必要がある。 Since the oscillation period and delay time can be adjusted by changing the resistance value and the capacitance value of the capacitor, the blinking interval and peak lighting duration can be adjusted according to the application. . However, if the delay time is too long with respect to the oscillation frequency, the maximum current value drops, so care must be taken when setting the value.

また、主にコンデンサの製造時のばらつきにより、この発振回路の発振周期および遅延時間はバラツキを持つ。 In addition, the oscillation period and delay time of this oscillation circuit vary due mainly to variations in manufacturing capacitors.

図４は、本発明による照明装置を示す概略図である。
１００は本発明による発光ダイオードランプ、５００は直流電源を示す。
この発光ダイオードランプ１００をそれぞれ並列に接続することにより、各個にて前述の発光ダイオードランプ回路が形成される。前述のように、各発光ダイオードランプ１００は、素子の製造時のバラツキにより異なる時定数を持つため、別個の速度での無段階の輝度の上昇・下降で、別個の速度での明滅を行わせることが可能となっている。 FIG. 4 is a schematic view showing a lighting device according to the present invention.
Reference numeral 100 denotes a light emitting diode lamp according to the present invention, and 500 denotes a DC power source.
By connecting the light-emitting diode lamps 100 in parallel, the above-described light-emitting diode lamp circuits are formed in each unit. As described above, each of the light emitting diode lamps 100 has a different time constant due to variations in the manufacture of the elements, and therefore, blinking at a separate speed is performed by continuously increasing / decreasing the brightness at a separate speed. It is possible.

すなわち、本発明を用いることによって、電源供給線の２本のみで、他の通信線や、点滅制御回路を用意することなく装飾照明用途に最適な明滅発光を得ることができる。 In other words, by using the present invention, it is possible to obtain flashing light emission that is optimal for decorative lighting applications using only two power supply lines and without preparing another communication line or a blinking control circuit.

通信線および制御機器を取り付けることなく各個独立に無段階の輝度の明滅を行うことができ、かつ従来の器具に用いることも可能という優れた効果を持つ発光ダイオードによる照明装置を提供することができる。さらに、別途通信線を増加させることが無いため、多数の配線によって美観を損なう恐れを低減することができ、別途制御機器を取り付けること無いため、限られたスペースでの取り付けが可能という設計時の利点を有した発光装置を提供することができる。 It is possible to provide an illuminating device using a light emitting diode that can perform stepless brightness blinking independently without attaching a communication line and a control device, and can be used for a conventional instrument. . In addition, since there is no additional communication line, the risk of losing aesthetics due to the large number of wires can be reduced, and no separate control equipment is installed, so installation in a limited space is possible. A light-emitting device having advantages can be provided.

また、装飾照明用途においては、不点が生じたとしても他の発光体が不点を起こさないように、並列接続が用いられる場合が多く、本発明の発光ダイオードランプの形状を従来の並列式発光ダイオード照明装置のソケットに適合した形状にすることにより、従来器具に取り付けることも可能であるため、従来用いられている発光ダイオードランプを本発明の発光ダイオードランプに変更するだけで各個明滅を行う発光装置を得ることができ、点滅を行わない発光ダイオードランプを混在させることもできるため、従来器具を使用しての、より自由度の高い装飾照明を容易に得ることもできる。 Also, in decorative lighting applications, parallel connection is often used so that other light emitters do not cause a defect even if a defect occurs, and the shape of the light-emitting diode lamp of the present invention is a conventional parallel type. By making the shape suitable for the socket of the light-emitting diode illuminating device, it can also be attached to conventional fixtures, so each individual blinking is performed simply by changing the conventionally used light-emitting diode lamp to the light-emitting diode lamp of the present invention. Since a light-emitting device can be obtained and light-emitting diode lamps that do not blink can be mixed, it is possible to easily obtain decorative lighting with a higher degree of freedom using a conventional instrument.

例えば、サインパネル用途において、文字等のサイン部の発光ダイオードランプを明滅を行わないものとし、他の箇所の発光ダイオードランプを本発明のものとするといった発光装置を別途通信線や制御器を設置することなく実現可能となっている。
なお、各個の発光ダイオードランプは、数秒に一度という間隔で、輝度が無段階に上下する柔らかい明滅を行うことができるため、蛍の発光現象のような明滅を擬似的に再現することも容易である。
For example, in a sign panel application, a light emitting device that does not blink a light emitting diode lamp of a sign portion such as a character and a light emitting diode lamp of another portion of the present invention is provided with a communication line and a controller separately. It is feasible without doing it.
In addition, each light-emitting diode lamp can perform soft blinking whose brightness rises and falls steplessly at intervals of once every few seconds, so that it is easy to simulate flickering like a firefly emission phenomenon. is there.

本発明により発光ダイオードランプの回路構成を表す図The figure showing the circuit structure of the light emitting diode lamp by this invention 図１点Ｐにおける時間−電圧を示す図FIG. 1 is a diagram showing time-voltage at point P 図１点Ｑにおける時間−電圧を示す図1 is a diagram showing time-voltage at point Q. 本発明の照明装置を示す概略図Schematic showing the lighting device of the present invention

符号の説明Explanation of symbols

１００ 発光ダイオードランプ
１０１ 発光ダイオード
１０２、２０２、３０１、４０２ 抵抗
１０３ 整流ダイオード
２０１ シュミットインバータ
２０３、３０２ コンデンサ
４０１ トランジスタ
DESCRIPTION OF SYMBOLS 100 Light emitting diode lamp 101 Light emitting diode 102,202,301,402 Resistance 103 Rectifier diode 201 Schmitt inverter 203,302 Capacitor 401 Transistor

Claims (3)

明滅制御回路を備えた発光ダイオードランプが、各個並列に接続されたことを特徴とする照明装置。
A lighting device comprising light emitting diode lamps each having a blinking control circuit connected in parallel.
前記明滅制御回路は、
矩形波信号を発振する矩形波発振回路と、
前記矩形波信号の立ち上がり及び立ち下りを遅らせる遅延回路と、
前記積分回路からの信号を増幅する増幅手段とを有することを特徴とする
請求項１の照明装置。
The blinking control circuit includes:
A rectangular wave oscillation circuit for oscillating a rectangular wave signal;
A delay circuit for delaying rising and falling of the rectangular wave signal;
2. The illumination device according to claim 1, further comprising amplification means for amplifying a signal from the integration circuit.
前記明滅制御回路に用いる抵抗は薄膜抵抗である請求項１の照明装置。
The illumination device according to claim 1, wherein the resistor used in the blinking control circuit is a thin film resistor.
JP2005052503A 2005-02-28 2005-02-28 Illumination device Pending JP2006236875A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008091340A (en) * 2006-10-02 2008-04-17 Keiho Kagi Yugenkoshi Light-emitting device and control method therefor

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JPS61295677A (en) * 1985-06-25 1986-12-26 Stanley Electric Co Ltd Driving device for light-emitting diode
JPH10144476A (en) * 1996-11-15 1998-05-29 Matsushita Electric Works Ltd Emergency use luminaire
JPH11195494A (en) * 1997-12-29 1999-07-21 Sony Corp Power source control device
JP2000037997A (en) * 1998-07-24 2000-02-08 Arakawa Engineering Kk Luminous ornament
JP2002025783A (en) * 2000-07-12 2002-01-25 Aichi Electric Co Ltd Illumination control device
JP2002157914A (en) * 2000-11-16 2002-05-31 Denso Corp Luminescent device with socket
JP2003100109A (en) * 2001-09-21 2003-04-04 Yoshikazu Ichiyama Led matrix lighting system
JP2004095853A (en) * 2002-08-30 2004-03-25 Koha Co Ltd Led lamp and lighting device

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Publication number Priority date Publication date Assignee Title
JPS61295677A (en) * 1985-06-25 1986-12-26 Stanley Electric Co Ltd Driving device for light-emitting diode
JPH10144476A (en) * 1996-11-15 1998-05-29 Matsushita Electric Works Ltd Emergency use luminaire
JPH11195494A (en) * 1997-12-29 1999-07-21 Sony Corp Power source control device
JP2000037997A (en) * 1998-07-24 2000-02-08 Arakawa Engineering Kk Luminous ornament
JP2002025783A (en) * 2000-07-12 2002-01-25 Aichi Electric Co Ltd Illumination control device
JP2002157914A (en) * 2000-11-16 2002-05-31 Denso Corp Luminescent device with socket
JP2003100109A (en) * 2001-09-21 2003-04-04 Yoshikazu Ichiyama Led matrix lighting system
JP2004095853A (en) * 2002-08-30 2004-03-25 Koha Co Ltd Led lamp and lighting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008091340A (en) * 2006-10-02 2008-04-17 Keiho Kagi Yugenkoshi Light-emitting device and control method therefor

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