JPS61179003A - Light source for vehicle lamp apparatus - Google Patents
Light source for vehicle lamp apparatusInfo
- Publication number
- JPS61179003A JPS61179003A JP60019630A JP1963085A JPS61179003A JP S61179003 A JPS61179003 A JP S61179003A JP 60019630 A JP60019630 A JP 60019630A JP 1963085 A JP1963085 A JP 1963085A JP S61179003 A JPS61179003 A JP S61179003A
- Authority
- JP
- Japan
- Prior art keywords
- light
- yellow
- vehicle lamp
- led
- light source
- 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.)
- Pending
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、車両用灯具の分野に利用できる光源に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a light source that can be used in the field of vehicle lamps.
（従来の技術）
車両用灯具の光源として、ＬＥＤが白熱電球に取って替
わりつつあるが、ＬＥＤの発光色の関係で、ターンシグ
ナル用に適した高輝度の黄色色光を得ることは困難であ
った。このため、従来は橙色に近い黄色つぼい色光を発
するＬＥＤチップ（ＧａＡｓＰ ／ ＧａＰ、発光波長
５８０ｎｍ）が用いられているが、他のＬＥＤチップに
比べると暗く、必要な明るさを得ようとすると、電流が
犬となり、ジャンクション温度が上昇する不都合があっ
た。(Prior Art) LEDs are replacing incandescent light bulbs as light sources for vehicle lights, but due to the color of LED light, it is difficult to obtain high-intensity yellow light suitable for turn signals. Ta. For this reason, conventionally, LED chips (GaAsP/GaP, emission wavelength 580 nm) that emit yellowish color light close to orange have been used, but they are darker than other LED chips and difficult to obtain the necessary brightness. , there was a problem that the current was high and the junction temperature rose.
（発明が解決しようとする問題点）
本発明は、上記のような従来の問題点を解決するために
なされ、ターンシグナル用に適した明るい黄色発光色が
得られるようにしたＬＥＤ光源を提供しようとするもの
である。(Problems to be Solved by the Invention) The present invention has been made in order to solve the above-mentioned conventional problems, and provides an LED light source that emits a bright yellow color suitable for turn signals. That is.
（問題点を解決するだめの手段）
問題点の解決にあたって、本発明は発光色の異なるＬＥ
Ｄを多数隣接させて基板に実装し、各ＬＥＤを同時に発
光させて加法混色により所望の色相を得る手段を要旨と
するものである。(Means for Solving the Problem) In order to solve the problem, the present invention provides an LE that emits light of different colors.
The gist of this method is to mount a large number of LEDs adjacent to each other on a substrate, cause each LED to emit light at the same time, and obtain a desired hue through additive color mixing.
（作 用）
赤色発光のＬＥＤと、黄緑色発光のＬＥＤとを加法混合
することにより、目的とするターンシグナル用の黄色色
光を得ることができる。(Function) By additively mixing an LED that emits red light and an LED that emits yellow-green light, it is possible to obtain the desired yellow light for a turn signal.
（実施例）
以下、添付図面により本発明の実施例を具体的に説明す
ると、１は基板であり、この内面側に赤色発光のＬＥＤ
２と、黄緑色発光のＬＥＤ３とが交互に縦横に多数実装
されている。この場合、第２図に示すようにＬＥＤ２と
ＬＥＤ３はそれぞれ数個が直列に接続されると共に、電
流制限抵抗４−が接続され、これらの直列接続がさらに
並列に接続された回路構成となっている。(Embodiment) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a substrate, and a red light emitting LED is mounted on the inner surface of the substrate.
A large number of LEDs 2 and 3 that emit yellow-green light are alternately mounted vertically and horizontally. In this case, as shown in Fig. 2, several LEDs 2 and 3 are each connected in series, a current limiting resistor 4- is connected, and these series connections are further connected in parallel to form a circuit configuration. There is.
この実施例において、例えば米国自動車技術者協会のＪ
５７８に規定される黄色色光を満足させる実験をしたと
ころ良好な結果が得られた。In this embodiment, for example, J.
An experiment was conducted to satisfy the yellow light stipulated in 578, and good results were obtained.
即ち、Ｌ１！ｉＤの縦横の間隔ｔを４叫ピツチとし、赤
色（ＧａＡｔＡｓ、発光波長６６０ ｎｍ ）のＬＥＤ
２と、黄緑色（ＧａＰ、発光波長５７０ ｎｍ ）のＬ
ＥＤ３を用い、赤色のＬＥＤ２の発光輝度を一定（点灯
電流を２０ｍＡ）にし、黄緑色のＬＥＤ３の点灯電流を
変化させ、輝度を変えたときの色度を実験したところ、
黄緑色の点灯電流が１５’ｍＡ〜３４ｍＡのときに所望
の黄色色光が得られた。そして、このときの赤色と黄緑
色のＬＥＤの表面輝度比は１：１．２〜２．７であるこ
とが判明した。That is, L1! The vertical and horizontal spacing t of the iD is set to 4 pitches, and a red (GaAtAs, emission wavelength 660 nm) LED is used.
2 and yellow-green (GaP, emission wavelength 570 nm) L
Using ED3, we set the luminance of the red LED 2 constant (lighting current 20 mA), changed the lighting current of the yellow-green LED 3, and experimented with the chromaticity when the brightness was changed.
The desired yellow light was obtained when the yellow-green lighting current was between 15'mA and 34mA. It was also found that the surface brightness ratio of the red and yellow-green LEDs at this time was 1:1.2 to 2.7.
また、赤色のＬＥＤ２と黄緑色のＬＥＤ３に等輝度の発
光条件（ともに点灯電流値を同一にする）を与えた場合
には、上記の輝度比と同比率で両方のＬＥＤの実装数量
を変化（赤色のＬＥＤ１個に対して黄緑色のＬＥＤｔｌ
−１，２〜２．７個）させればよい。第３図はその一例
を示し、赤色のＬＥＤ２′１個に対して、黄緑色のＬ
Ｋ Ｄ ３’が２個実装されたものである。なお、図に
おいて、５は基板１に取付けたレンズであり、その内面
には前記ＬＫＤ２゜３にそれぞれ対応させて集光カット
５ａが施されている。In addition, if the red LED 2 and the yellow-green LED 3 are given equal brightness light emitting conditions (both have the same lighting current value), the mounting quantity of both LEDs is changed at the same ratio as the above brightness ratio ( Yellow-green LED tl for one red LED
-1.2 to 2.7 pieces). Figure 3 shows an example of this; for one red LED 2', a yellow-green LED
Two K D 3' are mounted. In the figure, reference numeral 5 denotes a lens attached to the substrate 1, and its inner surface has condensing cuts 5a corresponding to the LKDs 2 and 3, respectively.
（発明の効果）
以上説明したように、本発明によれば、赤色発光のＬＥ
Ｄと黄緑色発光のＬＥＤとの加法混色手段により、ター
ンシグナルに適した黄色（アンバー色）発光を得ること
ができ、しかも両方とも輝度の高いもの同志の組合せに
より光輝度で明るい車両用灯具を形成することができる
。また、本発明の場合には、ＬＥＤの点灯電流（制限抵
抗値）の変化により色度の調整が可能であり、さらに赤
色と黄緑色とを同時に点灯する他、赤色だけを単独で点
灯可能とすれば、ストップアンドチー化とターンシグナ
ルランプとを一体化したコンビネーションランプも形成
することができ、適当な色の組合わせによって三色発光
も可能となる等のすぐれた効果を奏する。(Effects of the Invention) As explained above, according to the present invention, the red light emitting LE
By additive color mixing of D and a yellow-green LED, it is possible to obtain yellow (amber) light emission suitable for turn signals, and by combining both of them with high brightness, it is possible to create a bright vehicle lamp with high luminance. can be formed. Furthermore, in the case of the present invention, the chromaticity can be adjusted by changing the lighting current (limiting resistance value) of the LED, and in addition to lighting red and yellow-green simultaneously, it is also possible to light only red alone. By doing so, it is possible to form a combination lamp that integrates a stop-and-chip lamp and a turn signal lamp, and provides excellent effects such as the ability to emit three-color light by combining appropriate colors.
第１図は、本発明に係る光源を用いた灯具の一部を示す
破断斜視図、第２図は、その回路構成を示す説明図、第
３図は、本発明の他の実施例を示す一部の斜視図である
。
１・・・・・・基板、 ２・・・・・・赤色発
光のＬＥＤ、３・・・・・・黄緑色発光のＬＥＤ。FIG. 1 is a cutaway perspective view showing a part of a lamp using a light source according to the present invention, FIG. 2 is an explanatory diagram showing its circuit configuration, and FIG. 3 is a diagram showing another embodiment of the present invention. It is a partial perspective view. 1... Board, 2... LED that emits red light, 3... LED that emits yellow-green light.
Claims (4)
装し、各ＬＥＤを同時に発光させて加法混色により所望
の色相を得ることを特徴とする車両用灯具の光源。(1) A light source for a vehicle lamp, characterized in that a large number of LEDs emitting different colors of light are mounted adjacent to each other on a board, and each LED is made to emit light at the same time to obtain a desired hue through additive color mixing.
のとが組合わせられ、ターンシグナル用の黄色色光を得
ることを特徴とする特許請求の範囲第１項記載の車両用
灯具の光源。(2) The light source of the vehicle lamp according to claim 1, wherein the LED is a combination of one that emits red light and one that emits yellow-green light to obtain yellow light for a turn signal. .
れぞれ直列接続で交互に同数実装され、各直列に接続さ
れた電流制限抵抗値を変えることにより輝度を調節し、
所望の黄色色光を得ることを特徴とする特許請求の範囲
第１項記載の車両用灯具の光源。(3) The same number of red light-emitting LEDs and yellow-green light-emitting LEDs are alternately mounted in series connection, and the brightness is adjusted by changing the current limiting resistance value connected in each series,
A light source for a vehicle lamp according to claim 1, characterized in that a desired yellow light is obtained.
し、赤色発光のＬＥＤと黄緑色発光のＬＥＤの実装数量
の比を変えて、所望の黄色色光を得ることを特徴とする
特許請求の範囲第１項記載の車両用灯具の光源。(4) A patent characterized in that a desired yellow light is obtained by setting the limiting resistors connected in series to a constant value and changing the ratio of the mounting quantity of red light emitting LEDs and yellow green light emitting LEDs. A light source for a vehicle lamp according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60019630A JPS61179003A (en) | 1985-02-04 | 1985-02-04 | Light source for vehicle lamp apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60019630A JPS61179003A (en) | 1985-02-04 | 1985-02-04 | Light source for vehicle lamp apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61179003A true JPS61179003A (en) | 1986-08-11 |
Family
ID=12004518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60019630A Pending JPS61179003A (en) | 1985-02-04 | 1985-02-04 | Light source for vehicle lamp apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61179003A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120303U (en) * | 1987-01-28 | 1988-08-04 | ||
| JPH0256737U (en) * | 1988-10-19 | 1990-04-24 | ||
| JPH02273482A (en) * | 1989-04-13 | 1990-11-07 | Nec Corp | Ic socket |
| JPH0334258U (en) * | 1989-08-11 | 1991-04-04 | ||
| JP2005093912A (en) * | 2003-09-19 | 2005-04-07 | Nichia Chem Ind Ltd | Light-emitting device |
| JP2005093913A (en) * | 2003-09-19 | 2005-04-07 | Nichia Chem Ind Ltd | Light-emitting device |
| JP2010074167A (en) * | 2008-09-22 | 2010-04-02 | Schott Ag | Led light source having collimation optical element |
| JP2014187284A (en) * | 2013-03-25 | 2014-10-02 | Toshiba Lighting & Technology Corp | Light-emitting module and illuminating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209931A (en) * | 1983-04-30 | 1984-11-28 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Light device for automobile |
-
1985
- 1985-02-04 JP JP60019630A patent/JPS61179003A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209931A (en) * | 1983-04-30 | 1984-11-28 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Light device for automobile |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120303U (en) * | 1987-01-28 | 1988-08-04 | ||
| JPH0424561Y2 (en) * | 1987-01-28 | 1992-06-10 | ||
| JPH0256737U (en) * | 1988-10-19 | 1990-04-24 | ||
| JPH02273482A (en) * | 1989-04-13 | 1990-11-07 | Nec Corp | Ic socket |
| JPH0334258U (en) * | 1989-08-11 | 1991-04-04 | ||
| JP2005093912A (en) * | 2003-09-19 | 2005-04-07 | Nichia Chem Ind Ltd | Light-emitting device |
| JP2005093913A (en) * | 2003-09-19 | 2005-04-07 | Nichia Chem Ind Ltd | Light-emitting device |
| JP2010074167A (en) * | 2008-09-22 | 2010-04-02 | Schott Ag | Led light source having collimation optical element |
| US8531771B2 (en) | 2008-09-22 | 2013-09-10 | Schott Ag | LED light source with collimation optics |
| JP2014187284A (en) * | 2013-03-25 | 2014-10-02 | Toshiba Lighting & Technology Corp | Light-emitting module and illuminating device |
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