JP2000183402A - Light-emitting element - Google Patents
Light-emitting elementInfo
- Publication number
- JP2000183402A JP2000183402A JP35360598A JP35360598A JP2000183402A JP 2000183402 A JP2000183402 A JP 2000183402A JP 35360598 A JP35360598 A JP 35360598A JP 35360598 A JP35360598 A JP 35360598A JP 2000183402 A JP2000183402 A JP 2000183402A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- light
- emitting device
- circuit
- emission color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発光ダイオード等
の発光素子に関する。The present invention relates to a light emitting device such as a light emitting diode.
【０００２】[0002]
【従来の技術】発光ダイオード等の発光素子の発光色を
知るには、実際に電流を流してみる等をするのが有効で
ある。しかし、この方法には、多くの問題点がある。第
１に、製品に組み込まれた状態の発光ダイオードでは、
周辺回路の影響により、発光色ごとの電気特性を判別で
きないため、電気特性による発光色の識別が困難なこと
である。第２に、発光ダイオードを発光させる駆動回路
と発光色を識別する光学処理装置が必要となるため、発
光色識別を自動化する場合の設備が複雑、かつ高額とな
ることである。第３に、発光ダイオードの取り付け位置
・高さ・角度などの機構ばらつきや周辺部品の高さによ
る発光側条件の変化を調整するの必要があり、また発光
ダイオード周辺の回路特性により発光色の色調や輝度に
差が表れるため、製品に組み込まれた状態の発光ダイオ
ードでは、光学処理による識別が困難であるということ
である。第４に、発光ダイオードの発光色には、赤と橙
と黄と黄緑などの様に色調が似ているものがあるため、
製品に組み込まれた状態の発光ダイオードの発光色識別
を作業者の目視で行う場合、官能作業により人為ミスが
発生するということである。2. Description of the Related Art In order to know the color of light emitted from a light emitting element such as a light emitting diode, it is effective to actually apply a current. However, this method has many problems. First, in a light-emitting diode installed in a product,
Since the electrical characteristics of each emission color cannot be determined due to the influence of the peripheral circuit, it is difficult to identify the emission colors based on the electrical characteristics. Second, since a driving circuit for emitting light from the light emitting diode and an optical processing device for identifying the emission color are required, equipment for automating the emission color identification is complicated and expensive. Thirdly, it is necessary to adjust the variation of the light emitting side condition due to the variation of the mechanism such as the mounting position, height and angle of the light emitting diode and the height of the peripheral parts. This means that it is difficult to identify the light-emitting diode incorporated in a product by optical processing, because of differences in brightness and brightness. Fourth, some light-emitting diodes have similar colors such as red, orange, yellow, and yellow-green.
In the case where the light emission color of the light-emitting diode incorporated in the product is visually recognized by an operator, a human error occurs due to the sensory work.
【０００３】以上のような問題点を解消するため、従
来、発光素子に電流を流すことなく、その発光色を知る
ための技術として、実開昭６２−３６５６０号公報に記
載されているように、ＬＥＤ本体の一部またはその内部
に発光色を表示する色表示手段を設けたり、特開平５−
５５６３４号公報に記載されているように、可視発光ダ
イオードランプに、ダイオードが発生する色を示す可視
情報を表示する発光色識別表示部を設ける技術が知られ
ている。In order to solve the above-mentioned problems, a technique for knowing the emission color of a light emitting element without passing a current to the light emitting element has been disclosed in Japanese Utility Model Laid-Open Publication No. 62-36560. A color display means for displaying a light emission color is provided in a part of or inside the LED body.
As described in Japanese Patent No. 55634, a technique is known in which a visible light-emitting diode lamp is provided with a luminescent color identification display portion that displays visible information indicating a color generated by the diode.
【０００４】[0004]
【発明が解決しようとする問題点】しかしながら、上述
した従来の発光素子本体に色表示部を設ける技術では、
既存の発光素子本体との互換性を欠くことになるという
問題点がある。したがって、本発明の目的は、既存の発
光素子との互換性を維持しながら、発光素子を発光させ
ることなく、発光色を知ることができる発光素子を提供
することにある。However, in the above-described technology of providing a color display section on the conventional light emitting element body,
There is a problem that compatibility with the existing light emitting element body is lost. Therefore, an object of the present invention is to provide a light-emitting element that can know the emission color without causing the light-emitting element to emit light while maintaining compatibility with existing light-emitting elements.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明の発光素
子は、発光素子本体に、発光させることなく、かつ該発
光素子の本体の発光動作に対する影響が少ない方法を用
いた該発光素子本体の発光色を識別できる電気特性回路
を付加したことを特徴とする。また、本発明の発光素子
の好ましい実施の形態は、前記付加は、発光素子本体に
並列に行うことを特徴とする。また、本発明の発光素子
の好ましい実施の形態は、前記発光素子は、発光ダイオ
ードであることを特徴とする。また、本発明の発光素子
の好ましい実施の形態は、前記電気特性回路は固定抵抗
器であり、その抵抗値を発光色に対応させたことを特徴
とする。また、本発明の発光素子の好ましい実施の形態
は、前記電気特性回路はコンデンサであり、その静電容
量値を発光色に対応させたことを特徴とする。また、本
発明の発光素子の好ましい実施の形態は、前記電気特性
回路は発振回路であり、その発振開始電圧を発光色に対
応させたことを特徴とする。また、本発明の発光素子の
好ましい実施の形態は、前記電気特性回路は発振回路で
あり、その発振周波数を発光色に対応させたことを特徴
とする。また、本発明の発光素子の好ましい実施の形態
は、前記電気特性回路はカウンタ回路であり、そのカウ
ント値を発光色に対応させたことを特徴とする。また、
本発明の発光素子の好ましい実施の形態は、前記抵抗値
は、発光ダイオードのカソードに正極電圧を印加した場
合に固定抵抗器に流れる電流値を測定することにより求
めることを特徴とする。本発明の発光素子は、予め発光
色毎に定められた固有の電気特性を持たせることによ
り、前期の目的を達成するものである。SUMMARY OF THE INVENTION Accordingly, a light emitting device of the present invention uses a method of causing a light emitting device body to emit light without using the light emitting device body and having a small influence on a light emitting operation of the light emitting device body. It is characterized by adding an electric characteristic circuit capable of distinguishing the emission color. In a preferred embodiment of the light emitting device of the present invention, the addition is performed in parallel with the light emitting device body. In a preferred embodiment of the light emitting device according to the present invention, the light emitting device is a light emitting diode. In a preferred embodiment of the light-emitting device according to the present invention, the electric characteristic circuit is a fixed resistor, and a resistance value thereof is made to correspond to a luminescent color. In a preferred embodiment of the light emitting device according to the present invention, the electric characteristic circuit is a capacitor, and a capacitance value thereof corresponds to a light emission color. In a preferred embodiment of the light emitting device according to the present invention, the electric characteristic circuit is an oscillation circuit, and an oscillation start voltage thereof is set to correspond to a light emission color. In a preferred embodiment of the light emitting device according to the present invention, the electric characteristic circuit is an oscillation circuit, and the oscillation frequency is set to correspond to the emission color. In a preferred embodiment of the light emitting device according to the present invention, the electric characteristic circuit is a counter circuit, and the count value corresponds to a light emission color. Also,
In a preferred embodiment of the light emitting device according to the present invention, the resistance value is obtained by measuring a current value flowing through a fixed resistor when a positive voltage is applied to a cathode of the light emitting diode. The light-emitting device of the present invention achieves the object of the first aspect by giving specific electric characteristics predetermined for each emission color.
【０００６】[0006]
【発明の実施の形態】次に、本発明の実施の形態につい
て説明する。図１は、本発明の第１の実施例を示すブロ
ック図であり、発光素子本体２に、固定抵抗器３からな
る電気特性回路１を並列に接続した発光素子を示す。ま
た、図２は、図１の等価回路を示し、発光素子本体２
は、発光ダイオード本体２０であることを明示した。発
光ダイオード本体２０は、既存のものでよい。固定抵抗
器３は、発光時の発光ダイオード外観色、すなわち、発
光ダイオード本体２０の外装樹脂による変色をも加味し
た発光色毎に定められた固有の抵抗値を有する。また、
この抵抗値は、発光ダイオード２０の発光動作に対して
及ぼす影響が少ない値とされる。Next, an embodiment of the present invention will be described. FIG. 1 is a block diagram showing a first embodiment of the present invention, and shows a light emitting element in which an electric characteristic circuit 1 including a fixed resistor 3 is connected in parallel to a light emitting element main body 2. FIG. 2 shows an equivalent circuit of FIG.
Indicates that the light emitting diode body 20 is used. The light emitting diode body 20 may be an existing one. The fixed resistor 3 has a specific resistance value determined for each light emitting color in consideration of the appearance color of the light emitting diode at the time of light emission, that is, the discoloration of the light emitting diode body 20 due to the exterior resin. Also,
This resistance value has a small effect on the light emitting operation of the light emitting diode 20.
【０００７】次に、図３を用いて本実施例において、発
光ダイオード本体２０の発光色を知る方法について説明
する。発光ダイオード本体の２０のカソード９には直流
電圧源７の正極、また発光ダイオード本体２０のアノー
ド１０には、直流電流計８を接続し、発光ダイオード本
体２０に任意の電圧を印加する。ことき、発光ダイオー
ド本体２０は、ダイオードの逆方向特性に従いほとんど
電流を流さない。よって、直流電流計８では固定抵抗器
３を流れる電流の値のみを測定できることになる。そこ
で、オームの法則から、直流電圧源７の電圧値と直流電
流計８の電流値から固定抵抗器３の抵抗値を算出でき
る。この抵抗値は、前述のように、発光色ごとに予め定
められているため、抵抗値を知れば、発光ダイオード本
体２０を発光させることなく、その発光色を識別でき
る。Next, referring to FIG. 3, a description will be given of a method for determining the emission color of the light emitting diode body 20 in this embodiment. The positive electrode of the DC voltage source 7 is connected to the cathode 9 of the light emitting diode body 20, and the DC ammeter 8 is connected to the anode 10 of the light emitting diode body 20, and an arbitrary voltage is applied to the light emitting diode body 20. In this case, the light emitting diode body 20 hardly conducts current according to the reverse characteristics of the diode. Therefore, the DC ammeter 8 can measure only the value of the current flowing through the fixed resistor 3. Therefore, the resistance value of the fixed resistor 3 can be calculated from the voltage value of the DC voltage source 7 and the current value of the DC ammeter 8 according to Ohm's law. As described above, the resistance value is determined in advance for each emission color. Therefore, if the resistance value is known, the emission color can be identified without causing the light emitting diode body 20 to emit light.
【０００８】図４は、本発明の発光素子の第２の実施例
を示ブロック図であり、電気特性回路１としてコンデン
サ４を使用した例である。本例では、このコンデンサ４
の静電容量値を発光色対応に規定することにより、電気
特性から発光色を識別できるようになる。静電容量値
は、発光素子本体２の発光動作に対する少ない影響しか
与えないようにパルスを印加し、そのときの波形を観測
することにより求めることができる。FIG. 4 is a block diagram showing a second embodiment of the light emitting device of the present invention, in which a capacitor 4 is used as the electric characteristic circuit 1. In this example, this capacitor 4
By defining the capacitance value of the light emission color corresponding to the emission color, the emission color can be identified from the electrical characteristics. The capacitance value can be determined by applying a pulse so as to have little effect on the light emitting operation of the light emitting element body 2 and observing the waveform at that time.
【０００９】また、図５は、本発明の第３の実施例を示
すブロック図であり、電気特性回路１として、発振回路
５を使用した例である。本例で、発振回路５の発振開始
電圧を発光色対応に規定することにより、発振を開始し
た電圧から発光色を識別できる。また、発振周波数を発
光色対応に規定することにより、発振周波数から発光色
を識別できる。FIG. 5 is a block diagram showing a third embodiment of the present invention, in which an oscillation circuit 5 is used as the electric characteristic circuit 1. In this example, by defining the oscillation start voltage of the oscillation circuit 5 corresponding to the emission color, the emission color can be identified from the voltage at which oscillation started. By defining the oscillation frequency corresponding to the emission color, the emission color can be identified from the oscillation frequency.
【００１０】また、図６は、本発明の第４の実施例を示
すブロック図であり、電気特性回路１として、カウンタ
回路６を使用した例である。本例では、カウンタ回路６
のカウント値を発光色対応に規定することのより、発光
素子本体２へ連続したパルスを加えて、そこから得られ
る出力パルスの出力間隔から発光色を識別できる。FIG. 6 is a block diagram showing a fourth embodiment of the present invention, in which a counter circuit 6 is used as the electric characteristic circuit 1. In this example, the counter circuit 6
By defining the count value corresponding to the emission color, a continuous pulse is applied to the light emitting element body 2 and the emission color can be identified from the output interval of the output pulse obtained therefrom.
【００１１】[0011]
【発明の効果】本発明の第１の効果、発光素子の発光色
を識別するための設備を安価かつ容易に整備できること
である。その理由は、電気特性による識別方法が光学処
理方法より簡易なためであり、また、インサーキットテ
スターなど電気検査機により発光色の識別が可能となる
ことである。本発明の第２の効果は、製品に組みこまれ
た発光素子の発光色を容易に識別できることである。そ
の理由は、電気特性による識別方法は、発光素子周辺の
機械的な影響を受けないからである。本発明の第３の効
果は、本発明の発光素子が既存の発光素子との互換性が
高く、置き換えが容易なことである。その理由は、発光
素子の端子や外観に変更を加えることなく、識別回路と
して機能するが、発光動作に与える影響が少ない電気特
性回路を追加できることにある。A first effect of the present invention is that equipment for identifying the emission color of a light emitting element can be inexpensively and easily provided. The reason is that the identification method based on the electrical characteristics is simpler than the optical processing method, and the emission color can be identified by an electrical inspection device such as an in-circuit tester. A second effect of the present invention is that a light emitting color of a light emitting element incorporated in a product can be easily identified. The reason is that the identification method based on the electrical characteristics is not affected by mechanical influences around the light emitting element. A third effect of the present invention is that the light emitting device of the present invention has high compatibility with existing light emitting devices and can be easily replaced. The reason is that it is possible to add an electric characteristic circuit which functions as an identification circuit without changing the terminals and appearance of the light emitting element, but has little influence on the light emitting operation.
【図１】 本発明の発行素子の第１の実施例を示すブロ
ック図である。FIG. 1 is a block diagram showing a first embodiment of an issuing element according to the present invention.
【図２】 図１の等価回路図である。FIG. 2 is an equivalent circuit diagram of FIG.
【図３】 図１の実施例において、抵抗値を知る方法を
示す回路図である。FIG. 3 is a circuit diagram showing a method of determining a resistance value in the embodiment of FIG.
【図４】 本発明の発行素子の第２の実施例を示すブロ
ック図である。FIG. 4 is a block diagram showing a second embodiment of the issuing element of the present invention.
【図５】 本発明の発行素子の第３の実施例を示すブロ
ック図である。FIG. 5 is a block diagram showing a third embodiment of the issuing element of the present invention.
【図６】 本発明の発行素子の第４の実施例を示すブロ
ック図である。FIG. 6 is a block diagram showing a fourth embodiment of the issuing element of the present invention.
１ 電気特性回路 ２ 発光素子本体 ３ 固定抵抗器 ４ コンデンサ ５ 発振回路 ６ カウンタ回路 ７ 直流電圧源 ８ 直流電流計 ９ カソード １０ アノード ２０ 発光ダイオード本体 DESCRIPTION OF SYMBOLS 1 Electric characteristic circuit 2 Light emitting element main body 3 Fixed resistor 4 Capacitor 5 Oscillation circuit 6 Counter circuit 7 DC voltage source 8 DC ammeter 9 Cathode 10 Anode 20 Light emitting diode main body
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【手続補正書】[Procedure amendment]
【提出日】平成１２年３月２４日（２０００．３．２
４）[Submission date] March 24, 2000 (200.3.2.
4)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】[0005]
【課題を解決するための手段】そこで、本発明の発光素
子は、発光素子本体に、発光させることなく、かつ該発
光素子の本体の発光動作に対する影響が少ない方法を用
いた該発光素子本体の発光色を識別できる電気特性回路
を付加してなり、該付加が発光素子本体に並列に行われ
たことを特徴とする。また、本発明の発光素子の好まし
い実施の形態は、前記発光素子は、発光ダイオードであ
ることを特徴とする。また、本発明の発光素子の好まし
い実施の形態は、前記電気特性回路は固定抵抗器であ
り、その抵抗値を発光色に対応させたことを特徴とす
る。また、本発明の発光素子の好ましい実施の形態は、
前記電気特性回路はコンデンサであり、その静電容量値
を発光色に対応させたことを特徴とする。また、本発明
の発光素子の好ましい実施の形態は、前記電気特性回路
は発振回路であり、その発振周波数を発光色に対応させ
たことを特徴とする。また、本発明の発光素子の好まし
い実施の形態は、前記電気特性回路は発振回路であり、
その発振開始電圧を発光色に対応させたことを特徴とす
る。また、本発明の発光素子の好ましい実施の形態は、
前記電気特性回路はカウンタ回路であり、そのカウント
値を発光色に対応させたことを特徴とする。本発明の発
光素子は、予め発光色毎に定められた固有の電気特性を
持たせることにより、前記の目的を達成するものであ
る。SUMMARY OF THE INVENTION Accordingly, a light emitting device of the present invention uses a method of causing a light emitting device body to emit light without using the light emitting device body and having a small influence on a light emitting operation of the light emitting device body. An electric characteristic circuit capable of identifying a luminescent color is added, and the addition is performed in parallel with the light emitting element body.
Characterized in that was. In a preferred embodiment of the light emitting device of the present invention, the light emitting device is a light emitting diode.
It is characterized by that . In a preferred embodiment of the light emitting device of the present invention, the electric characteristic circuit is a fixed resistor.
And the resistance value corresponds to the emission color.
You . Further, a preferred embodiment of the light emitting device of the present invention is:
The electric characteristic circuit is a capacitor, and its capacitance value
Correspond to the emission color . Further, a preferred embodiment of the light emitting device of the present invention is the electric characteristic circuit.
Is an oscillation circuit whose oscillation frequency corresponds to the emission color.
It is characterized by having . In a preferred embodiment of the light emitting device of the present invention, the electric characteristic circuit is an oscillation circuit,
The oscillation start voltage is set to correspond to the emission color.
You . Further, a preferred embodiment of the light emitting device of the present invention is:
The electric characteristic circuit is a counter circuit, and its count is
The value is made to correspond to the emission color . The light-emitting device of the present invention achieves the above-described object by providing a specific electric characteristic that is predetermined for each emission color.
Claims (9)
かつ該発光素子の本体の発光動作に対する影響が少ない
方法を用いた該発光素子本体の発光色を識別できる電気
特性回路を付加したことを特徴とする発光素子。1. A light emitting element body without emitting light
And a light emitting element characterized by adding an electric characteristic circuit capable of distinguishing a light emitting color of the light emitting element main body using a method having a small influence on a light emitting operation of the main body of the light emitting element.
ことを特徴とする請求項１記載の発光素子。2. The light emitting device according to claim 1, wherein the addition is performed in parallel with the light emitting device body.
ことを特徴とする請求項１または請求項２記載の発光素
子。3. The light emitting device according to claim 1, wherein the light emitting device is a light emitting diode.
その抵抗値を発光色に対応させたことを特徴とする請求
項１ないし請求項３のいずれかに記載の発光素子。4. The electric characteristic circuit is a fixed resistor,
4. The light emitting device according to claim 1, wherein the resistance value corresponds to a light emission color.
その静電容量値を発光色に対応させたことを特徴とする
請求項１ないし請求項３のいずれかに記載の発光素子。5. The electric characteristic circuit is a capacitor,
4. The light emitting device according to claim 1, wherein the capacitance value corresponds to a light emission color.
の発振周波数を発光色に対応させたことを特徴とする請
求項１ないし請求項３のいずれかに記載の発光素子。6. The light-emitting device according to claim 1, wherein the electric characteristic circuit is an oscillation circuit, and the oscillation frequency is made to correspond to an emission color.
の発振開始電圧を発光色に対応させたことを特徴とする
請求項１ないし請求項３のいずれかに記載の発光素子。7. The light emitting device according to claim 1, wherein the electric characteristic circuit is an oscillation circuit, and an oscillation start voltage of the oscillation circuit corresponds to an emission color.
り、そのカウント値を発光色に対応させたことを特徴と
する請求項１ないし請求項３のいずれかに記載の発光素
子。8. The light emitting device according to claim 1, wherein said electric characteristic circuit is a counter circuit, and a count value thereof is made to correspond to a light emission color.
ドに正極電圧を印加した場合に固定抵抗器に流れる電流
値を測定することにより求めることを特徴とする請求項
４記載の発光素子。9. The light emitting device according to claim 4, wherein the resistance value is obtained by measuring a current value flowing through a fixed resistor when a positive voltage is applied to a cathode of the light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35360598A JP3119638B2 (en) | 1998-12-11 | 1998-12-11 | Light emitting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35360598A JP3119638B2 (en) | 1998-12-11 | 1998-12-11 | Light emitting element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000183402A true JP2000183402A (en) | 2000-06-30 |
| JP3119638B2 JP3119638B2 (en) | 2000-12-25 |
Family
ID=18431979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35360598A Expired - Fee Related JP3119638B2 (en) | 1998-12-11 | 1998-12-11 | Light emitting element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3119638B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011023397A (en) * | 2009-07-13 | 2011-02-03 | Stanley Electric Co Ltd | Light source device, and method of controlling the same |
| JP2013004370A (en) * | 2011-06-17 | 2013-01-07 | Sharp Corp | Illuminating device |
| JP2018139289A (en) * | 2012-10-30 | 2018-09-06 | エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ | Light-emitting diode arrangement, module, and method for producing light-emitting diode arrangement |
-
1998
- 1998-12-11 JP JP35360598A patent/JP3119638B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011023397A (en) * | 2009-07-13 | 2011-02-03 | Stanley Electric Co Ltd | Light source device, and method of controlling the same |
| JP2013004370A (en) * | 2011-06-17 | 2013-01-07 | Sharp Corp | Illuminating device |
| JP2018139289A (en) * | 2012-10-30 | 2018-09-06 | エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ | Light-emitting diode arrangement, module, and method for producing light-emitting diode arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3119638B2 (en) | 2000-12-25 |
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