JP2004128408A - Light emitting member, and illumination lamp using same member - Google Patents

Light emitting member, and illumination lamp using same member Download PDF

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Publication number
JP2004128408A
JP2004128408A JP2002293914A JP2002293914A JP2004128408A JP 2004128408 A JP2004128408 A JP 2004128408A JP 2002293914 A JP2002293914 A JP 2002293914A JP 2002293914 A JP2002293914 A JP 2002293914A JP 2004128408 A JP2004128408 A JP 2004128408A
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Prior art keywords
light
light emitting
emitting member
integrated circuit
reflecting portion
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JP3682449B2 (en
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Masayoshi Hoshino
干野　正義
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WMB CO
WORLD LOGI CO Ltd
WORLD-LOGI CO Ltd
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WMB CO
WORLD LOGI CO Ltd
WORLD-LOGI CO Ltd
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Priority to JP2002293914A priority Critical patent/JP3682449B2/en
Priority to AU2003268781A priority patent/AU2003268781A1/en
Priority to PCT/JP2003/012819 priority patent/WO2004032253A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting member and an illumination lamp using the same member which has high socket compatibility and is wholly compact. <P>SOLUTION: Light emitting elements 1 of a plurality of light emitting diode (LED) elements having different luminous colors from each other are connected respectively with an integrated circuit 2 for controlling the respective light emissions of the plurality of light emitting elements 1. This integrated circuit 2 and the plurality of light emitting elements 1 are so stored in a common bulb 3 integrally with each other as to form an integrated light emitting member 10. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は複数色発光をする発光部材、特に、発光ダイオード等の発光素子を用いた発光部材およびそれを用いた照明ランプに関する。
【０００２】
【従来の技術】
発光ダイオード（ＬＥＤ）素子を有する発光部材は、白熱電球に比べ、高輝度発光、省電力、長寿命である、有色の自発光素子のため色が鮮明である等の特徴を有し、現在、様々な用途に利用されている。また、青色発光のＬＥＤ素子が開発され、複数色を同時に発光させて発光色を混ぜること等によるＬＥＤのフルカラー化が可能となり、ＬＥＤの適用可能性が一気に広がってきている。
【０００３】
このように色鮮やかなＬＥＤ素子を用いた発光部材において、同一パッケージ（バルブ）内に色の異なる複数のＬＥＤ素子を封入し、複数色を同時に発光させたり、それぞれの色を発光させたりすることにより、異なる色を表現する発光部材が周知である。具体的な構成は、以下に示す特許文献１に記載の通りである。このような発光部材は、特許文献１に記載の通り、複数のＬＥＤ素子が同一のパッケージ（バルブ）に封入されており、各ＬＥＤ素子の電力供給およびスイッチングを行うためのリード電極がＬＥＤ素子ごとに２本１組（いずれか一方のリード電極は、すべてのＬＥＤ素子間で共通化してもよい）存在し、少なくとも３本の電極（２色発光の場合）を具備していることとなる。
【０００４】
【特許文献１】
実開昭５２−６３３７４号公報
【０００５】
【発明が解決しようとする課題】
しかし、このような発光部材は、以下のような問題がある。まず、特許文献１に記載のような発光部材では、２色発光の場合、少なくとも３本（例えば、陽極側２本、陰極側１本（共用））のリード電極が必要となり、それに合わせたソケットが必要となってくる。また、３色発光の場合、少なくとも４本必要となるが、２色発光の発光部材のソケットとは互換性を有しないこととなっていた。
【０００６】
また、複数色発光させるためには、端子に電圧供給の有無または強弱等の制御を外部から端子に与える必要があり、照明ごとに、取り付けたＬＥＤ素子用の制御回路を別に設けなければならなかった。これは、照明器具のコンパクト化を阻害する要因ともなり、コンパクトな照明器具に適用するのが困難となる場合があった。
【０００７】
本発明は、かかる従来技術の問題点を解決するべくなされたもので、ソケットの互換性が高く、全体がコンパクトな発光部材およびそれを用いた照明ランプを提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明に係る発光部材は、発光色の異なる複数の発光素子と、該複数の発光素子に接続され、該複数の発光素子のそれぞれの発光の制御を行う集積回路と、外部と前記集積回路とが通電可能に配された一対のリード電極と、前記複数の発光素子を保護するための光透過性を有するバルブとを具備し、前記複数の発光素子と前記集積回路とが、前記バルブ内に一体収容されているものである。
【０００９】
本発明の発光部材によれば、赤、緑、青等、発光色の異なる複数の発光ダイオード素子等である発光素子が、当該複数の発光素子のそれぞれの発光の制御が行われる集積回路にそれぞれ接続される。集積回路においては、予め、発光素子を点灯させる順番、点灯する発光素子の組み合わせ（同時点灯、単独点灯含む）、点灯時間、点灯の強弱（電流調整）等が設定されている。この集積回路と外部（ソケット）とは、一対のリード電極を介して接続可能であり、リード電極から集積回路へと電力が供給される。リード電極から電力が供給されると、集積回路の設定に基いて、各発光素子のそれぞれに電力が供給され、様々な色変化の表現が実現される。
【００１０】
そして、この集積回路と複数の発光素子とは、共通のバルブ内に一体収容され、一体の発光部材を形成する。
【００１１】
このように、集積回路を経て各発光素子に電力が供給されるため、発光部材へ電力供給するための一対のリード電極は、発光素子の数に関わらず、陽極、陰極の各１本ずつ（一対）でよいこととなる。したがって、発光素子の数が異なる発光部材であっても同じソケットで互換することができる。これによりさらに、単色の発光部材に替えて本発明の発光部材を取り付けて、単色発光の照明器具を容易に複数色発光の照明器具にすることができる。
【００１２】
また、外部の制御手段を用いることなく様々な色変化を表現することができるため、コンパクトな照明器具であって、外部に制御手段を設ける余地のないものにも適用することができる。
【００１３】
好ましくは、前記集積回路に接続され、該集積回路を外部から制御するための信号電極をさらに具備するように構成される。
【００１４】
この場合、集積回路には、予め、信号電極からの所定の制御信号（パルス信号等）により、点灯させる発光素子の種類、時間等が設定されている。リード電極から集積回路へ電力を供給しつつ、リード電極とは別に、外部から信号電極を通じて制御信号が入力されると、当該制御信号に基いた色変化を表現させるように集積回路が制御する。このように、本発明の発光部材の形成後であっても、色変化のパターンを変更することができる。また、外部の制御信号により、色変化を逐次制御することも可能である。したがって、より幅広い色変化のパターンを制御することができる。さらに、外部からの制御信号は、各信号パルスの周波数を変化させたりするだけでよいので、外部に設けられる制御部は、複雑なものを必要とせず、コンパクト化を妨げない程度に抑えることができる。
【００１５】
なお、信号電極は、１つでもよいし、複数でもよい。
【００１６】
また、本発明に係る照明ランプは、少なくとも１つの上記発光部材と、前記発光部材を収容するための光透過性を有する収容体と、前記発光部材の前記リード電極に通電可能に接続されるとともに、前記収容体に取り付けられた口金とを具備し、前記収容体は、内部の少なくとも一部に前記発光部材からの光を反射するための光反射部が設けられているものである。
【００１７】
本発明の照明ランプによれば、光透過性を有する収容体に上記発光部材が少なくとも１つ収容される。また、発光部材のリード電極と口金とが接続されて、外部からの通電を可能にする。口金と収容体とが取り付けられて、一体の照明ランプが形成される。さらに、収容体の内部の少なくとも一部に発光部材からの光を反射するための光反射部が形成されている。
【００１８】
発光部材を点灯させると、光透過性を有する収容体においては、発光部材の光は、発光部材の照射方向へまっすぐ進む。一方、光反射部においては、発光部材の光が反射するため、光反射部の形状が浮かび上がって見える（主に光って見える）。
【００１９】
このように、発光部材の点灯により収容体内の光反射部が浮かび上がって見えるため、従来の中実の樹脂内に拡散材を含有させたものを収容体として用いることにより発光に変化を持たせたものに比べ、より様々な変化を実現することができる。また、拡散材のように均一的なものではなく、光反射部を様々な形状とすることができるため、創作性の自由度を増やすことができる。さらに、発光部材内の集積回路により、複数の色が色鮮やかに変化する装飾的な照明ランプとすることができる。
【００２０】
なお、光反射部の色は、装填された発光部材内に収容された複数の発光素子が作り出す色のうちの１色であることが好ましい。光反射部の色と同じ波長を有する光が主に反射されるからである。なお、光反射部に複数の色を用いてもよい。
【００２１】
好ましくは、前記光反射部は、前記発光部材の光の照射方向に沿って形成されるように構成される。
【００２２】
この場合、発光部材からの光が光反射部によって遮られ難くなり、発光部材からの光を収容体全域に透過させつつ光反射部で反射させることができる。したがって、光反射部における反射も均一化され、より色鮮やかに変化する装飾照明ランプとすることができる。
【００２３】
ここで、発光部材の光の照射方向に沿った光反射部は、発光部材の光の照射方向に平行な管状体であってもよいし、当該管状体を円周方向に複数分割したものであってもよいし、発光部材の光の照射方向に平行に長く延びた板状体の長手方向に垂直にねじりを設けたものであってもよい。
【００２４】
好ましくは、前記光反射部は、前記発光部材の光の照射方向に平行な複数本の棒状体が輪状に配置されているように構成される。
【００２５】
この場合、透明な収容体を透過する光と光反射部で反射する光とのバランスが良好なものとなり、照度を落とすことなく、色鮮やかに変化する照明ランプを形成することができる。
【００２６】
なお、光反射部としての棒状体の本数、配置される輪状の直径等は、棒状体の直径や、収容体の大きさ等から種々採用することができる。
【００２７】
【発明の実施の形態】
以下、添付図面を参照しつつ、本発明の実施の形態を説明する。図１は本発明の第１の実施の形態に係る発光部材における模式的概略図である。図１（ａ）は発光部材を横から見た図であり、図１（ｂ）は発光部材を下（リード電極側）から見た図である。
【００２８】
本実施の形態の発光部材１０は、図１に示すように、発光色の異なる複数の発光素子１と、該複数の発光素子１に接続され、該複数の発光素子１のそれぞれの発光の制御を行う集積回路２と、外部（ソケット）と前記集積回路２とが通電可能に配された一対のリード電極４ａ，４ｎと、前記複数の発光素子１を保護するための光透過性を有するバルブ３を具備している。そして、前記複数の発光素子１と前記集積回路２とが、前記バルブ３内に一体封止されているものである。なお、本実施の形態のバルブ３は、無色透明な樹脂を使用しているが、光透過性を有するものであれば、有色樹脂や、半透明の樹脂を用いてもよいし、ガラスバルブであってもよい。
【００２９】
図１の発光部材１０によれば、赤、緑、青等、発光色の異なる複数の発光ダイオード（ＬＥＤ）素子である発光素子１が、複数の発光素子１のそれぞれの発光の制御が行われる集積回路２にそれぞれ接続される。本実施の形態においては、基板６を挟んで、一面に互いに色の異なる３つの発光素子１が取り付けられ、他面に集積回路２が取り付けられている。
【００３０】
図２は図１の発光部材における発光素子および集積回路の取り付け例を示す図である。図２（ａ）は発光素子側（図１（ａ）における上側面）を示す図であり、図２（ｂ）は集積回路側（図１（ａ）における下側面）を示す図である。図２（ａ）に示すように、基板６上に各発光素子１ｒ（赤色），１ｇ（緑色），１ｂ（青色）が設置されている。各発光素子１ｒ，１ｇ，１ｂは、それぞれ電極である陽極８ｒａ，８ｇａ，８ｂａと陰極８ｒｎ，８ｇｎ，８ｂｎとが通電することにより発光する。また、図２（ｂ）に示すように、基板６の裏面には、集積回路２が設置されている。集積回路２は、電力供給用の電源端子７ａ，７ｎと、発光素子１ｒ，１ｇ，１ｂの陽極８ｒａ，８ｇａ，８ｂａおよび陰極８ｒｎ，８ｇｎ，８ｂｎへの出力端子９ｒａ，９ｇａ，９ｂａ，９ｎとを具備している。なお、本実施の形態において、陰極側の出力端子９ｎは、各発光素子１ｒ，１ｇ，１ｂの陰極８ｒｎ，８ｇｎ，８ｂｎを１つに束ねたものとして構成されている。
【００３１】
ここで、本実施の形態においては、１枚の基板６の両面に複数の発光素子１および集積回路２を設置しているが、複数の発光素子１および集積回路２のそれぞれを２枚の基板上に形成してボンディングワイヤ等により接続してもよい。
【００３２】
集積回路２においては、予め、各発光素子１を点灯させる順番、点灯する発光素子１の組み合わせ（同時点灯、単独点灯含む）、点灯時間、点灯の強弱（電流調整）等が設定されている。例えば、赤→緑→青→黄（赤＋緑）→シアン（緑＋青）→マゼンタ（青＋赤）→白（赤＋緑＋青）→赤→…の順（点灯時間はそれぞれ５秒）で点灯させるように設定する。このとき、電流調整をさらに行う場合、当該調整された発光素子１の照度が変化し、明度や彩度を変化させることができるため、フルカラー発光可能な発光部材とすることができる。
【００３３】
集積回路２と外部（ソケット）とは、リード電極４ａ，４ｎを介して接続可能であり、リード電極４ａ，４ｎからボンディングワイヤ７により接続された集積回路２へと電力（一定）が供給される。リード電極４ａ，４ｎから電力が供給されると、集積回路２の設定に基いて、各発光素子１のそれぞれに電力が供給され、様々な色変化の表現が実現される。
【００３４】
そして、この集積回路２と複数の発光素子１とは、図１に示すように、共通のバルブ３内に一体収容され、一体の発光部材１０を形成する。本実施の形態においては、透明樹脂で形成されたバルブ３内に一体封止されて一体の発光部材１０が形成されている。
【００３５】
ここで、本実施の形態のバルブ３は、φ５サイズ（直径５ｍｍ）の円柱に発光素子１の上部がレンズ形状となっているものを用いているが、φ３サイズ、φ８サイズ、φ１０サイズ等種々の径を採用可能であり、また、角柱等のあらゆるバルブ形状を採用可能であり、レンズ形状の有無も特に問わない。
【００３６】
このように、集積回路２を経て各発光素子１に電力が供給されるため、発光部材１０へ電力供給するためのリード電極４ａ，４ｎは、発光素子１の数に関わらず、陽極４ａ、陰極４ｎの各１本ずつでよいこととなる。さらに、単色の発光部材（一般的な単色ＬＥＤ装置）に替えて本発明の発光部材を取り付けることにより、容易に、複数色発光の照明器具とすることができる。したがって、発光素子１の数が異なる発光部材であっても同じソケットで互換することができる。
【００３７】
さらに、外部の制御手段を用いることなく様々な色変化を表現することができるため、コンパクトな照明器具であって、外部に制御手段を設ける余地のないものにも適用することができる。
【００３８】
なお、本実施の形態においては、３つの互いに色の異なる発光素子１を用いたが、用いる発光素子の色は、２種類でも、４種類でも、それ以上であってもよい。また、同色の発光素子を複数用いることを妨げるものではない。
【００３９】
次に、本発明に係る第２の実施の形態について説明する。図３は本発明の第２の実施の形態に係る発光部材における模式的概略図である。図３（ａ）は発光部材を横から見た図であり、図３（ｂ）は発光部材を下（リード電極側）から見た図であり、図３（ｃ）は発光部材の概略斜視図である。なお、図３（ｃ）は、バルブ３の内部を省略して示してある。本実施の形態において、第１の実施の形態と同様の構成部分については、同じ符号を付し、説明を省略する。
【００４０】
本実施の形態の発光装置１１が第１の実施の形態と異なる点は、図３に示すように、前記リード電極４ａ，４ｎとは別に、前記集積回路２に接続され、該集積回路２を外部から制御するための信号電極５をさらに具備することである。
【００４１】
また、図４は図３の発光部材における発光素子および集積回路の取り付け例を示す図である。図４（ａ）は発光素子側（図３（ａ）における上側面）を示す図であり、図４（ｂ）は集積回路側（図３（ａ）における下側面）を示す図である。本実施の形態の発光部材１１においては、図４（ｂ）に示すように、基板６の裏面に設置された集積回路２に外部信号入力用の信号端子７ｓが設けられている。信号端子７ｓと信号電極５とは、リード電極４ａ，４ｎと同様、ボンディングワイヤ７によって接続される。
【００４２】
本実施の形態における集積回路２には、予め、信号電極５からの所定の制御信号（単位時間あたりのパルス信号の数や、電圧変化等）により点灯させる発光素子１の種類、時間等が設定されている。リード電極４ａ，４ｎから集積回路２へ電力を供給しつつ、外部から信号電極５を通じて制御信号が入力されると、当該制御信号に基いた色変化を表現させるように集積回路２が制御する。このように、発光部材１１の形成後であっても、色変化のパターンを変更することができる。また、外部の制御信号により、色変化を逐次制御することも可能である。したがって、より幅広い色変化のパターンを制御することができる。さらに、外部からの制御信号を電圧変化の制御等により、容易に行うことができるので、外部に設けられる制御部は、複雑なものを必要とせず、コンパクト化を妨げない程度に抑えることができる。
【００４３】
なお、信号電極５は、１つでもよいし、複数でもよい。信号電極５が複数ある場合は、別系統である複数の制御手段からの制御を同時に伝えることができる。
【００４４】
また、本実施の形態においては、図３（ｃ）に示すように、リード電極４ａ，４ｎおよび信号電極５が一列に並ぶように形成している。この場合、リード電極４ａ，４ｎおよび信号電極５をテープ状の金属から一度にプレス成形することにより容易に製造することができる。また、これら電極を一列に並ぶように形成することにより、発光素子１と集積回路２とのボンディング加工を簡素化することができ、製造効率を高めることができる。
【００４５】
また、リード電極４ａ，４ｎおよび信号電極５の他の配置例を説明する。図５は本発明の第３の実施の形態に係る発光部材における模式的概略図である。図５（ａ）は発光部材を下（リード電極側）から見た図であり、図５（ｂ）は発光部材の概略斜視図である。なお、図５（ｂ）は、バルブ３の内部を省略して示してある。本実施の形態においても、第１、第２の実施の形態と同様の構成部分については、同じ符号を付し、説明を省略する。
【００４６】
図５に示す発光部材１２は、リード電極４ａ，４ｎおよび信号電極５の別の配置例を示すものであり、他の構成は、第２の実施の形態と同様である。リード電極４ａ，４ｎおよび信号電極５は、図５に示すように、バルブ３への取り付け部において一列に並ばないように配置され、当該取り付け部を中心としてそれぞれ放射状に広がっている。リード電極４ａ，４ｎと信号電極５とが一列に並ばないため、リード電極４ａ，４ｎ用のソケットと信号電極５用のソケットを別に設けることができる。これにより、従来ある単色用ソケットを流用しつつ、外部制御を可能にすることができる。また、図５の構造は、本発光部材１２をプリント配線基板に表面実装する場合、リード電極４ａ，４ｎおよび信号電極５のための穴あけ加工が不要となるため、表面実装を容易に行うことができる。
【００４７】
続いて、上記実施の形態で述べたような発光部材を用いた照明ランプについて説明する。図６は本発明の第４の実施の形態に係る照明ランプにおける概略断面図である。図６（ａ）は照明ランプを収容体および口金の取り付け部（面）に垂直な断面を表す図であり、図６（ｂ）は照明ランプの図６（ａ）におけるＡ−Ａ断面を表す図である。
【００４８】
本実施の形態における照明ランプは、図６（ａ）に示すように、少なくとも１つの上記発光部材１０と、前記発光部材１０を収容するための光透過性を有する収容体２０と、前記発光部材１０の前記リード電極４ａ，４ｎに通電可能に接続されるとともに、前記収容体２０に取り付けられた口金２４とを具備し、前記収容体２０は、内部の少なくとも一部に前記発光部材１０からの光を反射するための光反射部２１が設けられている。
なお、本実施の形態においては、前記収容体２０は、透明な樹脂により中実形成されるとともに、前記口金２４により被覆される部位である発光部材取り付け部２３に少なくとも１つ（図６（ａ）においては複数）の装填穴２２を有している。また、前記発光部材１０は、前記装填穴２２の少なくともいずれか１つに装填される。
【００４９】
本実施の形態の照明ランプによれば、光透過性を有する収容体２０に上記発光部材１０が少なくとも１つ収容される。また、発光部材１０のリード電極４ａ，４ｎと口金２４とが接続されて、外部からの通電を可能にする。口金２４と収容体２０とが取り付けられて、一体の照明ランプが形成される。
【００５０】
さらに、収容体２０の内部の少なくとも一部に、発光部材１０からの光を反射するための光反射部２１が形成されている。また、透明な樹脂により中実形成された収容体２０は、発光部材取り付け部２３に少なくとも１つ（図６（ａ）においては複数）の装填穴２４が形成されており、少なくとも１つの発光部材１０が装填される。また、収容体２０内部の少なくとも一部に、光反射部２１が有色の樹脂により形成される。
【００５１】
なお、本実施の形態においては、発光部材１０と口金２４との間に電流調整（定電圧化）用の整流回路２５が接続されている。ここで、本実施の形態における口金２４は、Ｅ２６型口金を採用しているが、これに限定されるものではなく、他の径、他の形状の口金を採用することができる。また、本実施の形態においては、発光部材として第１の実施の形態における発光部材１０を用いているが、第２の実施の形態における発光部材１１および第３の実施の形態における発光部材１２を用いてもよい。この際、口金２４とは別に信号電極用端子を照明ランプの外側に設ければよい。
【００５２】
発光部材１０を点灯させると、光透過性を有する収容体２０においては、発光部材１０の光は、発光部材１０の照射方向（主に発光部材１０の上方である照射方向Ｌ）へまっすぐ進む。一方、光反射部２１においては、発光部材１０の光が反射するため、横（照射方向Ｌに対して垂直な方向である方向Ｍ）から見ると光反射部が浮かび上がって見える（主に光って見える）。
【００５３】
このように、発光部材１０の点灯により収容体２０内の光反射部２１が浮かび上がって見えるため、従来の中実の樹脂内に拡散材を含有させたものを収容体として用いることにより発光に変化を持たせたものに比べ、より様々な変化を実現することができる。また、拡散材のように均一的なものではなく、光反射部２１を様々な形状とすることができるため、創作性の自由度を増やすことができる。さらに、発光部材１０内の集積回路２により、複数の色が色鮮やかに変化する装飾的な照明ランプとすることができる。
【００５４】
なお、本実施の形態における発光部材１０は、中央の装填穴２２のみに装填されているが、複数の装填穴２２のすべてに装填されてもよいし、複数の装填穴２２のいくつかに装填されてもよい。また、複数個装填する場合には、発光素子１の組み合わせの異なる発光部材１０を装填してもよい。
【００５５】
また、光反射部２１の色は、装填された発光部材１０内に封止された複数の発光素子１が作り出す色のうちの１色であることが好ましい。光反射部２１の色と同じ波長を有する光が主に反射されるからである。発光部材１０の発光色すべてについて光反射部２１を浮かび上がらせて見せるためには、光反射部２１を白色で形成することが好ましい。なお、光反射部２１に複数の色を用いてもよい。この場合、光反射部２１の形状を複数の色ごとに相違させて形成すると、当該光反射部２１の色に対応する色の光が点灯するごとに、浮かび上がる光反射部２１の形状が異なることとなり、興趣に富む照明ランプとすることができる。
【００５６】
また、本実施の形態においては、図６（ｂ）に示されるように、前記光反射部２１は、前記発光部材１０の光の照射方向Ｌに平行な複数本の棒状体が輪状に配置されているように構成される。
【００５７】
なお、中実な収容体２０の内部に光反射部２１を形成するためには、収容体形成用の径を有するパイプの内側に、光反射部形成用の径を有するパイプを挿入した状態でそれぞれのパイプの内部に溶解している樹脂を流し込み、同時に押し出して形成するといった従来からの方法を適用することが可能である。
【００５８】
この場合、収容体２０を透過する光と光反射部２１で反射する光とのバランスが良好なものとなり、照度を落とすことなく、色鮮やかに変化する照明ランプを形成することができる。
【００５９】
なお、光反射部２１としての棒状体の本数、配置される輪状の直径等は、棒状体の直径や、収容体２０の大きさ等から種々採用することができる。
【００６０】
続いて、本発明に係る照明ランプの他の実施の形態について説明する。図７は本発明に係る照明ランプの他の実施の形態における概略断面図である。図７（ａ）は第５の実施の形態、図７（ｂ）は第６の実施の形態、図７（ｃ）は第７の実施の形態をそれぞれ示す。なお、図７は第４の実施の形態における図６（ａ）のＡ−Ａ断面に相当する照明ランプの断面をそれぞれ示すものである。
【００６１】
ここで、第５の実施の形態の照明ランプは、図７（ａ）に示すように、発光部材１０の光の照射方向Ｌに沿った光反射部２１が、発光部材１０の光の照射方向Ｌに平行な管状体であるように構成され、第６の実施の形態の照明ランプは、図７（ｂ）に示すように、発光部材１０の光の照射方向Ｌに沿った光反射部２１が、第２の実施の形態の管状体を円周方向に複数分割したものであるように構成され、第７の実施の形態は、図７（ｃ）に示すように、発光部材１０の光の照射方向Ｌに沿った光反射部２１が、発光部材１０の光の照射方向Ｌに平行に長く延びた板状体であって、該板状体の長手方向に対して垂直にねじりを設けたものであるように構成される。
【００６２】
これら実施の形態について共通する点は、前記光反射部２１が、前記発光部材１０の光の照射方向Ｌに沿って形成されていることである。なお、前述の第４の実施の形態もこの点で共通する。
【００６３】
この場合、発光部材１０からの光が光反射部２１によって遮られ難くなり、発光部材１０からの光を収容体２０全域に透過させつつ光反射部２１で反射させることができる。したがって、光反射部２１における反射も均一化され、より色鮮やかに変化する装飾照明ランプとすることができる。
【００６４】
これらの実施の形態においても、光反射部２１に複数の色を用いてもよい。特に、第７の実施の形態の照明ランプにおいては、図７（ｃ）に示すように、板状体である光反射部２１の一面２１１と他面２１２とで色を相違させることにより、興趣に富む照明ランプとすることができる。
【００６５】
例えば、面２１１が黄、面２１２が青である光反射部２１を用いるとともに、黄色および青色に発光する２つの発光素子１を有する発光部材（第１の実施の形態における発光部材１０において、赤色発光の発光素子１ｒと緑色発光の発光素子１ｇとを同時発光させて黄色発光を実現するように制御してもよい）を用いる。この場合、黄色発光と青色発光との交互発光を繰り返すように集積回路２を設定すると、黄色発光のときは青色と補色関係にある黄色の面２１１のみが浮き上がって見え、青色発光のときは黄色と補色関係にある青色の面２１２のみが浮き上がって見え、面２１１と面２１２とが交互に発光するので、あたかも光反射部２１が回転しているかのような興趣を演出することができる。
【００６６】
【発明の効果】
本発明に係る発光部材によれば、集積回路を経て発光素子に電力が供給されるため、発光部材へ電力供給するためのリード電極は、発光素子の数に関わらず、陽極、陰極の各１本ずつでよいこととなる。したがって、発光素子の数が異なる発光部材であっても同じソケットで互換することができる。これにより、さらに、単色の発光部材に替えて本発明の発光部材を取り付けて、単色発光の照明器具を容易に複数色発光の照明器具とすることができる。
【００６７】
また、外部の制御手段を用いることなく様々な色変化を表現することができるため、コンパクトな照明器具であって、外部に制御手段を設ける余地のないものにも適用することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態に係る発光部材における模式的概略図である。
【図２】図１の発光部材における発光素子および集積回路の取り付け例を示す図である。
【図３】本発明の第２の実施の形態に係る発光部材における模式的概略図である。
【図４】図３の発光部材における発光素子および集積回路の取り付け例を示す図である。
【図５】本発明の第３の実施の形態に係る発光部材における模式的概略図である。
【図６】本発明の第４の実施の形態に係る照明ランプにおける概略断面図である。
【図７】本発明に係る照明ランプの他の実施の形態における概略断面図である。
【符号の説明】
１　発光素子
２　集積回路
３　バルブ
４ａ，４ｎ　リード電極
５　信号電極
１０，１１，１２　発光部材
２０　収容体
２１　光反射部
２４　口金[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a light emitting member that emits light of a plurality of colors, in particular, a light emitting member using a light emitting element such as a light emitting diode and an illumination lamp using the same.
[0002]
[Prior art]
A light emitting member having a light emitting diode (LED) element has features such as high brightness light emission, power saving, and long life as compared to an incandescent light bulb, and a color self-luminous element, and the color is clear. It is used for various purposes. In addition, LED elements emitting blue light have been developed, and full-color LEDs can be made by simultaneously emitting a plurality of colors and mixing the emitted colors, and the applicability of LEDs has been rapidly expanding.
[0003]
In a light emitting member using such colorful LED elements, a plurality of LED elements having different colors are enclosed in the same package (bulb) to emit light in a plurality of colors at the same time or to emit light in each color. Therefore, a light emitting member expressing different colors is well known. The specific configuration is as described in Patent Document 1 shown below. In such a light emitting member, as described in Patent Literature 1, a plurality of LED elements are sealed in the same package (bulb), and a lead electrode for supplying power and switching of each LED element is provided for each LED element. There is a set of two (one of the lead electrodes may be common to all the LED elements), and at least three electrodes (in the case of two-color light emission) are provided.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 52-63374
[0005]
[Problems to be solved by the invention]
However, such a light emitting member has the following problems. First, in a light emitting member as described in Patent Document 1, in the case of two-color light emission, at least three lead electrodes (for example, two on the anode side and one on the cathode side (shared)) are required, and a socket corresponding thereto is required. Is required. In the case of three-color light emission, at least four light-emitting members are required, but they are not compatible with a socket of a two-color light-emitting member.
[0006]
In addition, in order to emit light of a plurality of colors, it is necessary to externally control the presence / absence or strength of voltage supply to the terminal, and a control circuit for the attached LED element must be separately provided for each illumination. Was. This also becomes a factor that hinders downsizing of the lighting equipment, and it has sometimes been difficult to apply the lighting equipment to a compact lighting equipment.
[0007]
The present invention has been made in order to solve the problems of the related art, and has as its object to provide a light emitting member having high socket compatibility and a compact overall size, and an illumination lamp using the same.
[0008]
[Means for Solving the Problems]
A light-emitting member according to the present invention includes a plurality of light-emitting elements having different emission colors, an integrated circuit connected to the plurality of light-emitting elements, and controlling emission of each of the plurality of light-emitting elements, and an external circuit and the integrated circuit. Comprises a pair of lead electrodes arranged so as to be able to conduct electricity, and a light-transmitting bulb for protecting the plurality of light-emitting elements, wherein the plurality of light-emitting elements and the integrated circuit are provided in the bulb. It is housed integrally.
[0009]
According to the light-emitting member of the present invention, light-emitting elements such as a plurality of light-emitting diode elements having different emission colors, such as red, green, and blue, are provided on an integrated circuit in which light emission of the plurality of light-emitting elements is controlled. Connected. In the integrated circuit, the order of lighting the light emitting elements, the combination of the light emitting elements to be turned on (including simultaneous lighting and single lighting), the lighting time, the intensity of lighting (current adjustment), and the like are set in advance. The integrated circuit and the outside (socket) can be connected via a pair of lead electrodes, and power is supplied from the lead electrodes to the integrated circuit. When power is supplied from the lead electrode, power is supplied to each of the light emitting elements based on the setting of the integrated circuit, and various color changes are realized.
[0010]
The integrated circuit and the plurality of light emitting elements are integrally housed in a common bulb to form an integrated light emitting member.
[0011]
As described above, since power is supplied to each light emitting element via the integrated circuit, a pair of lead electrodes for supplying power to the light emitting member are provided one for each of the anode and the cathode regardless of the number of light emitting elements ( One pair). Therefore, even if the light emitting members have different numbers of light emitting elements, they can be interchanged with the same socket. Thereby, the lighting device of the present invention can be easily changed to a lighting device of a plurality of colors by attaching the light emitting member of the present invention instead of the light emitting member of the single color.
[0012]
Further, since various color changes can be expressed without using an external control means, the present invention can be applied to a compact lighting fixture having no room for external control means.
[0013]
Preferably, it is configured to further include a signal electrode connected to the integrated circuit for controlling the integrated circuit from outside.
[0014]
In this case, in the integrated circuit, the type, time, and the like of the light emitting element to be turned on are set in advance by a predetermined control signal (such as a pulse signal) from a signal electrode. When a control signal is input from the outside through a signal electrode separately from the lead electrode while supplying power to the integrated circuit from the lead electrode, the integrated circuit controls so as to express a color change based on the control signal. As described above, the color change pattern can be changed even after the formation of the light emitting member of the present invention. Further, it is also possible to sequentially control the color change by an external control signal. Therefore, a wider color change pattern can be controlled. Furthermore, since the control signal from the outside only needs to change the frequency of each signal pulse, the externally provided control unit does not require a complicated one and can be suppressed to a level that does not hinder compactness. it can.
[0015]
The number of signal electrodes may be one or more.
[0016]
The illumination lamp according to the present invention is connected to at least one of the light emitting members, a light-transmitting container for housing the light emitting members, and the lead electrodes of the light emitting members so as to be able to conduct electricity. And a base attached to the housing, wherein the housing is provided with a light reflecting portion for reflecting light from the light emitting member in at least a part of the inside of the housing.
[0017]
According to the illumination lamp of the present invention, at least one of the light-emitting members is accommodated in the light-transmitting container. In addition, the lead electrode of the light emitting member and the base are connected to enable external energization. The base and the housing are attached to form an integrated illumination lamp. Further, a light reflecting portion for reflecting light from the light emitting member is formed in at least a part of the inside of the container.
[0018]
When the light-emitting member is turned on, in the light-transmitting container, light from the light-emitting member travels straight in the irradiation direction of the light-emitting member. On the other hand, in the light reflecting portion, since the light of the light emitting member is reflected, the shape of the light reflecting portion appears to appear (mainly looks shiny).
[0019]
As described above, since the light reflecting portion in the housing appears to be raised by the lighting of the light emitting member, the light emission is changed by using a conventional solid resin containing a diffusing material as the housing. More various changes can be realized as compared with the above-described method. In addition, since the light reflecting portion is not uniform like a diffusing material and can be formed in various shapes, the degree of freedom of creativity can be increased. Further, a decorative illumination lamp in which a plurality of colors change vividly by an integrated circuit in the light-emitting member can be provided.
[0020]
Preferably, the color of the light reflecting portion is one of the colors created by the plurality of light emitting elements housed in the loaded light emitting member. This is because light having the same wavelength as the color of the light reflecting portion is mainly reflected. Note that a plurality of colors may be used for the light reflecting portion.
[0021]
Preferably, the light reflecting portion is configured to be formed along a direction in which the light emitting member emits light.
[0022]
In this case, the light from the light emitting member is less likely to be blocked by the light reflecting portion, and the light from the light emitting member can be reflected by the light reflecting portion while being transmitted through the entire container. Therefore, the reflection in the light reflecting portion is also made uniform, and a decorative illumination lamp that changes more vividly can be obtained.
[0023]
Here, the light reflecting portion along the light irradiation direction of the light emitting member may be a tubular body parallel to the light irradiation direction of the light emitting member, or a plurality of the tubular body divided in the circumferential direction. It may be provided, or a twist may be provided perpendicular to the longitudinal direction of a plate-like body that extends long parallel to the light irradiation direction of the light emitting member.
[0024]
Preferably, the light reflecting portion is configured such that a plurality of rods parallel to a light irradiation direction of the light emitting member are arranged in a ring shape.
[0025]
In this case, the balance between the light transmitted through the transparent container and the light reflected by the light reflecting portion is good, and it is possible to form an illumination lamp that changes vividly without lowering the illuminance.
[0026]
In addition, the number of rods as the light reflecting portion, the diameter of the ring arranged, and the like can be variously adopted depending on the diameter of the rods, the size of the container, and the like.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic diagram of a light emitting member according to the first embodiment of the present invention. FIG. 1A is a diagram of the light emitting member viewed from the side, and FIG. 1B is a diagram of the light emitting member viewed from below (lead electrode side).
[0028]
As shown in FIG. 1, the light emitting member 10 of the present embodiment includes a plurality of light emitting elements 1 having different emission colors and is connected to the plurality of light emitting elements 1, and controls the light emission of each of the plurality of light emitting elements 1. , A pair of lead electrodes 4a and 4n in which the exterior (socket) and the integrated circuit 2 are electrically connected, and a light-transmitting bulb for protecting the plurality of light emitting elements 1 3 is provided. The plurality of light emitting elements 1 and the integrated circuit 2 are integrally sealed in the bulb 3. Although the bulb 3 of the present embodiment uses a colorless and transparent resin, a colored resin or a translucent resin may be used as long as the bulb 3 has a light transmitting property, or a glass bulb may be used. There may be.
[0029]
According to the light emitting member 10 of FIG. 1, the light emitting element 1 that is a plurality of light emitting diode (LED) elements having different emission colors such as red, green, and blue controls light emission of each of the plurality of light emitting elements 1. Each is connected to the integrated circuit 2. In the present embodiment, three light emitting elements 1 of different colors are mounted on one surface with the substrate 6 interposed therebetween, and the integrated circuit 2 is mounted on the other surface.
[0030]
FIG. 2 is a diagram illustrating an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. FIG. 2A is a diagram showing the light emitting element side (upper surface in FIG. 1A), and FIG. 2B is a diagram showing the integrated circuit side (lower surface in FIG. 1A). As shown in FIG. 2A, the light emitting elements 1r (red), 1g (green), and 1b (blue) are provided on the substrate 6. Each of the light emitting elements 1r, 1g, 1b emits light when the anodes 8ra, 8ga, 8ba, which are electrodes, and the cathodes 8rn, 8gn, 8bn are energized. Further, as shown in FIG. 2B, the integrated circuit 2 is provided on the back surface of the substrate 6. The integrated circuit 2 includes power supply terminals 7a, 7n for power supply, and output terminals 9ra, 9ga, 9ba, 9n to anodes 8ra, 8ga, 8ba and cathodes 8rn, 8gn, 8bn of the light emitting elements 1r, 1g, 1b. I have it. In the present embodiment, the cathode-side output terminal 9n is configured such that the cathodes 8rn, 8gn, 8bn of the light emitting elements 1r, 1g, 1b are bundled into one.
[0031]
Here, in the present embodiment, the plurality of light emitting elements 1 and the integrated circuit 2 are installed on both surfaces of one substrate 6, but each of the plurality of light emitting elements 1 and the integrated circuit 2 is mounted on two substrates. It may be formed above and connected by a bonding wire or the like.
[0032]
In the integrated circuit 2, the order in which the light emitting elements 1 are turned on, the combination of the light emitting elements 1 to be turned on (including simultaneous lighting and single lighting), the lighting time, the intensity of lighting (current adjustment), and the like are set in advance. For example, red → green → blue → yellow (red + green) → cyan (green + blue) → magenta (blue + red) → white (red + green + blue) → red → ... (lighting time is 5 seconds each) ). At this time, when the current adjustment is further performed, the illuminance of the light-emitting element 1 that has been adjusted can be changed, and the brightness and the saturation can be changed. Therefore, a light-emitting member capable of full-color emission can be obtained.
[0033]
The integrated circuit 2 and the outside (socket) can be connected via the lead electrodes 4a and 4n, and power (constant) is supplied from the lead electrodes 4a and 4n to the integrated circuit 2 connected by the bonding wires 7. . When power is supplied from the lead electrodes 4a and 4n, power is supplied to each of the light emitting elements 1 based on the setting of the integrated circuit 2, and various color changes are realized.
[0034]
The integrated circuit 2 and the plurality of light emitting elements 1 are integrally housed in a common bulb 3 as shown in FIG. 1 to form an integrated light emitting member 10. In the present embodiment, an integral light emitting member 10 is integrally formed and sealed in a bulb 3 made of a transparent resin.
[0035]
Here, the bulb 3 of the present embodiment uses a cylinder of φ5 size (diameter 5 mm) in which the upper part of the light emitting element 1 has a lens shape, but various types such as φ3 size, φ8 size, φ10 size and the like are used. Can be adopted, and any bulb shape such as a prism can be adopted, and the presence or absence of a lens shape is not particularly limited.
[0036]
As described above, since power is supplied to each light emitting element 1 via the integrated circuit 2, the lead electrodes 4a and 4n for supplying power to the light emitting member 10 are provided with the anode 4a and the cathode 4a regardless of the number of the light emitting elements 1. 4n is sufficient. Further, by mounting the light emitting member of the present invention in place of a single color light emitting member (a general single color LED device), a lighting device capable of emitting light of multiple colors can be easily obtained. Therefore, even if the number of light emitting elements 1 is different from each other, the same socket can be used for interchangeability.
[0037]
Further, since various color changes can be expressed without using an external control means, the present invention can be applied to a compact lighting apparatus having no room for providing an external control means.
[0038]
In the present embodiment, three light emitting elements 1 having different colors are used. However, two, four, or more light emitting elements may be used. Further, it does not prevent the use of a plurality of light-emitting elements of the same color.
[0039]
Next, a second embodiment according to the present invention will be described. FIG. 3 is a schematic diagram of a light emitting member according to a second embodiment of the present invention. 3A is a diagram of the light emitting member viewed from the side, FIG. 3B is a diagram of the light emitting member viewed from below (lead electrode side), and FIG. 3C is a schematic perspective view of the light emitting member. FIG. FIG. 3C omits the inside of the valve 3. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0040]
The difference between the light emitting device 11 of the present embodiment and the first embodiment is that the light emitting device 11 is connected to the integrated circuit 2 separately from the lead electrodes 4a and 4n as shown in FIG. The signal electrode 5 for external control is further provided.
[0041]
FIG. 4 is a diagram showing an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. 4A is a diagram showing the light emitting element side (upper surface in FIG. 3A), and FIG. 4B is a diagram showing the integrated circuit side (lower surface in FIG. 3A). In the light emitting member 11 of the present embodiment, as shown in FIG. 4B, the integrated circuit 2 provided on the back surface of the substrate 6 is provided with a signal terminal 7s for inputting an external signal. The signal terminal 7s and the signal electrode 5 are connected by a bonding wire 7, similarly to the lead electrodes 4a and 4n.
[0042]
In the integrated circuit 2 in the present embodiment, the type, time, and the like of the light emitting element 1 to be turned on by a predetermined control signal (number of pulse signals per unit time, voltage change, and the like) from the signal electrode 5 are set in advance. Have been. When a control signal is input from the outside through the signal electrode 5 while supplying power to the integrated circuit 2 from the lead electrodes 4a and 4n, the integrated circuit 2 controls so as to express a color change based on the control signal. Thus, even after the formation of the light emitting member 11, the pattern of the color change can be changed. Further, it is also possible to sequentially control the color change by an external control signal. Therefore, a wider color change pattern can be controlled. Further, since a control signal from the outside can be easily performed by controlling a voltage change or the like, the externally provided control unit does not require a complicated one and can be suppressed to a level that does not hinder compactness. .
[0043]
Note that the number of signal electrodes 5 may be one or more. When there are a plurality of signal electrodes 5, control from a plurality of control means, which are separate systems, can be transmitted simultaneously.
[0044]
Further, in the present embodiment, as shown in FIG. 3C, the lead electrodes 4a and 4n and the signal electrode 5 are formed so as to be aligned. In this case, the lead electrodes 4a and 4n and the signal electrode 5 can be easily manufactured by press-molding the tape-shaped metal at a time. Further, by forming these electrodes in a line, the bonding between the light emitting element 1 and the integrated circuit 2 can be simplified, and the manufacturing efficiency can be increased.
[0045]
Another arrangement example of the lead electrodes 4a and 4n and the signal electrode 5 will be described. FIG. 5 is a schematic diagram of a light emitting member according to a third embodiment of the present invention. FIG. 5A is a view of the light emitting member viewed from below (lead electrode side), and FIG. 5B is a schematic perspective view of the light emitting member. In FIG. 5B, the inside of the valve 3 is omitted. Also in the present embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted.
[0046]
The light emitting member 12 shown in FIG. 5 shows another example of the arrangement of the lead electrodes 4a and 4n and the signal electrode 5, and the other configuration is the same as that of the second embodiment. As shown in FIG. 5, the lead electrodes 4a and 4n and the signal electrode 5 are arranged so as not to be aligned in a portion to be attached to the bulb 3, and each of the lead electrodes 4a and 4n is radially spread around the attached portion. Since the lead electrodes 4a and 4n and the signal electrode 5 are not arranged in a line, a socket for the lead electrodes 4a and 4n and a socket for the signal electrode 5 can be separately provided. This allows external control while diverting a conventional single color socket. In the structure shown in FIG. 5, when the present light emitting member 12 is surface-mounted on a printed wiring board, drilling for the lead electrodes 4a and 4n and the signal electrode 5 is not required, so that surface mounting can be easily performed. it can.
[0047]
Next, an illumination lamp using the light emitting member described in the above embodiment will be described. FIG. 6 is a schematic sectional view of an illumination lamp according to a fourth embodiment of the present invention. FIG. 6A is a diagram illustrating a cross section of the illumination lamp perpendicular to a mounting portion (surface) of the housing and the base, and FIG. 6B is a cross-sectional view of the illumination lamp taken along line AA in FIG. FIG.
[0048]
As shown in FIG. 6A, the illumination lamp according to the present embodiment includes at least one light emitting member 10, a light-transmitting container 20 for housing the light emitting member 10, and the light emitting member 10. And a base 24 attached to the housing 20 while being electrically connected to the lead electrodes 4a and 4n of the housing 10; A light reflecting portion 21 for reflecting light is provided.
In the present embodiment, at least one of the housings 20 is formed of a transparent resin in a solid state, and at least one of the light emitting member mounting portions 23, which is a portion covered by the base 24 (see FIG. 3) has a plurality of the loading holes 22). The light emitting member 10 is loaded in at least one of the loading holes 22.
[0049]
According to the illumination lamp of the present embodiment, at least one of the light-emitting members 10 is housed in the housing 20 having light transmittance. Further, the lead electrodes 4a, 4n of the light emitting member 10 and the base 24 are connected to enable external power supply. The base 24 and the container 20 are attached to form an integrated illumination lamp.
[0050]
Further, a light reflecting portion 21 for reflecting light from the light emitting member 10 is formed on at least a part of the inside of the container 20. Further, the container 20 formed of a solid transparent resin has at least one (a plurality of holes in FIG. 6A) loading holes 24 formed in the light emitting member mounting portion 23 and at least one light emitting member. 10 is loaded. In addition, the light reflecting portion 21 is formed of a colored resin on at least a part of the inside of the container 20.
[0051]
In the present embodiment, a rectifier circuit 25 for current adjustment (constant voltage) is connected between the light emitting member 10 and the base 24. Here, the base 24 in the present embodiment employs an E26 type base, but the present invention is not limited to this, and bases having other diameters and other shapes can be used. Further, in this embodiment, the light emitting member 10 in the first embodiment is used as the light emitting member, but the light emitting member 11 in the second embodiment and the light emitting member 12 in the third embodiment are used. May be used. At this time, the signal electrode terminal may be provided outside the illumination lamp separately from the base 24.
[0052]
When the light emitting member 10 is turned on, the light of the light emitting member 10 proceeds straight in the irradiation direction of the light emitting member 10 (mainly the irradiation direction L above the light emitting member 10) in the light-transmitting container 20. On the other hand, since the light of the light emitting member 10 is reflected in the light reflecting portion 21, the light reflecting portion appears to be raised (mainly shining) when viewed from the side (the direction M which is a direction perpendicular to the irradiation direction L). Look).
[0053]
As described above, since the light reflecting portion 21 in the container 20 appears to be raised by the lighting of the light emitting member 10, light emission can be achieved by using a conventional solid resin containing a diffusing material as the container. More various changes can be realized as compared with those having a change. In addition, since the light reflecting portion 21 is not uniform like a diffusing material and can be formed in various shapes, the degree of freedom of creativity can be increased. Further, a decorative illumination lamp in which a plurality of colors change vividly can be provided by the integrated circuit 2 in the light emitting member 10.
[0054]
Although the light emitting member 10 in the present embodiment is loaded only in the central loading hole 22, it may be loaded in all of the plurality of loading holes 22 or loaded in some of the plurality of loading holes 22. May be done. When a plurality of light-emitting elements 1 are mounted, light-emitting members 10 having different combinations of the light-emitting elements 1 may be mounted.
[0055]
Further, the color of the light reflecting portion 21 is preferably one of the colors created by the plurality of light emitting elements 1 sealed in the loaded light emitting member 10. This is because light having the same wavelength as the color of the light reflecting portion 21 is mainly reflected. It is preferable that the light reflecting portion 21 be formed in white in order to make the light reflecting portion 21 stand out for all of the luminescent colors of the light emitting member 10. Note that a plurality of colors may be used for the light reflecting portion 21. In this case, if the shape of the light reflecting portion 21 is made different for each of a plurality of colors, the shape of the light reflecting portion 21 that emerges each time light of a color corresponding to the color of the light reflecting portion 21 is turned on. In other words, it is possible to obtain a lighting lamp that is rich in interest.
[0056]
Further, in the present embodiment, as shown in FIG. 6B, the light reflecting portion 21 includes a plurality of rods parallel to the light irradiation direction L of the light emitting member 10 arranged in a ring shape. It is configured to be.
[0057]
In addition, in order to form the light reflecting portion 21 inside the solid container 20, a pipe having a diameter for forming the light reflecting portion is inserted inside a pipe having a diameter for forming the container. It is possible to apply a conventional method in which a resin dissolved in each of the pipes is poured and extruded at the same time.
[0058]
In this case, the balance between the light transmitted through the container 20 and the light reflected by the light reflecting portion 21 is good, and it is possible to form an illumination lamp that changes vividly without lowering the illuminance.
[0059]
The number of rods as the light reflecting portion 21, the diameter of the ring arranged, and the like can be variously adopted depending on the diameter of the rods, the size of the container 20, and the like.
[0060]
Next, another embodiment of the illumination lamp according to the present invention will be described. FIG. 7 is a schematic sectional view of another embodiment of the illumination lamp according to the present invention. FIG. 7A shows the fifth embodiment, FIG. 7B shows the sixth embodiment, and FIG. 7C shows the seventh embodiment. FIG. 7 shows a cross section of an illumination lamp corresponding to the AA cross section of FIG. 6A in the fourth embodiment.
[0061]
Here, in the illumination lamp of the fifth embodiment, as shown in FIG. 7A, the light reflecting portion 21 along the light irradiation direction L of the light emitting member 10 The illumination lamp according to the sixth embodiment is configured so as to be a tubular body parallel to L. As shown in FIG. 7B, the light reflecting portion 21 along the light irradiation direction L of the light emitting member 10 is provided. However, in the seventh embodiment, as shown in FIG. 7C, the light from the light-emitting member 10 is configured by dividing the tubular body of the second embodiment into a plurality in the circumferential direction. Is a plate-like body that extends long in parallel with the light irradiation direction L of the light-emitting member 10, and is provided with a twist perpendicular to the longitudinal direction of the plate-like body. It is configured to be.
[0062]
What is common to these embodiments is that the light reflecting portion 21 is formed along the light irradiation direction L of the light emitting member 10. The fourth embodiment described above is common in this respect.
[0063]
In this case, the light from the light emitting member 10 is less likely to be blocked by the light reflecting portion 21, and the light from the light emitting member 10 can be reflected by the light reflecting portion 21 while transmitting the light through the entire housing 20. Therefore, the reflection in the light reflecting portion 21 is also made uniform, and a decorative illumination lamp that changes more vividly can be obtained.
[0064]
Also in these embodiments, a plurality of colors may be used for the light reflecting portion 21. In particular, in the illumination lamp according to the seventh embodiment, as shown in FIG. 7C, the color is different between the one surface 211 and the other surface 212 of the light reflecting portion 21 which is a plate-shaped body, so that it is interesting. The lighting lamp can be rich.
[0065]
For example, while using the light reflecting portion 21 whose surface 211 is yellow and whose surface 212 is blue, a light-emitting member having two light-emitting elements 1 that emit yellow and blue light (the light-emitting member 10 in the first embodiment has a red color) The light emitting element 1r for emitting light and the light emitting element 1g for emitting green light may be simultaneously emitted to achieve yellow light emission. In this case, when the integrated circuit 2 is set so as to alternately emit the yellow light emission and the blue light emission, only the yellow surface 211 having a complementary color relationship with the blue appears to be raised in the yellow light emission, and the yellow surface 211 appears in the blue light emission. Since only the blue surface 212 having a complementary color relationship with the surface appears to be raised and the surface 211 and the surface 212 emit light alternately, it is possible to produce an interest as if the light reflection part 21 is rotating.
[0066]
【The invention's effect】
According to the light emitting member of the present invention, since power is supplied to the light emitting element via the integrated circuit, the lead electrode for supplying power to the light emitting member has one anode and one cathode regardless of the number of light emitting elements. It will be good for each book. Therefore, even if the light emitting members have different numbers of light emitting elements, they can be interchanged with the same socket. Thus, the light emitting member of the present invention can be attached to the light emitting member of the present invention instead of the light emitting member of a single color, so that the lighting device of the single color light emission can be easily changed to the lighting device of the plural color light emission.
[0067]
Further, since various color changes can be expressed without using an external control means, the present invention can be applied to a compact lighting fixture having no room for external control means.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a light emitting member according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. 1;
FIG. 3 is a schematic diagram of a light emitting member according to a second embodiment of the present invention.
FIG. 4 is a diagram illustrating an example of mounting a light emitting element and an integrated circuit in the light emitting member of FIG. 3;
FIG. 5 is a schematic diagram of a light emitting member according to a third embodiment of the present invention.
FIG. 6 is a schematic sectional view of an illumination lamp according to a fourth embodiment of the present invention.
FIG. 7 is a schematic sectional view of another embodiment of the illumination lamp according to the present invention.
[Explanation of symbols]
1 Light-emitting element
2 Integrated circuits
3 Valve
4a, 4n lead electrode
5 signal electrode
10,11,12 Light emitting member
20 containers
21 Light reflector
24 bases

Claims (5)

発光色の異なる複数の発光素子と、該複数の発光素子に接続され、該複数の発光素子のそれぞれの発光の制御を行う集積回路と、外部と前記集積回路とが通電可能に配された一対のリード電極と、前記複数の発光素子を保護するための光透過性を有するバルブとを具備し、
前記複数の発光素子と前記集積回路とが、前記バルブ内に一体収容されていることを特徴とする発光部材。A plurality of light-emitting elements having different emission colors, an integrated circuit connected to the plurality of light-emitting elements and controlling emission of each of the plurality of light-emitting elements, and a pair of external circuits and the integrated circuit arranged so as to be able to conduct electricity A lead electrode, and a light-transmitting bulb for protecting the plurality of light-emitting elements,
The light emitting member, wherein the plurality of light emitting elements and the integrated circuit are integrally housed in the bulb. 前記集積回路に接続され、該集積回路を外部から制御するための信号電極をさらに具備することを特徴とする請求項１記載の発光部材。The light emitting member according to claim 1, further comprising a signal electrode connected to the integrated circuit for controlling the integrated circuit from outside. 少なくとも１つの請求項１または２記載の発光部材と、前記発光部材を収容するための光透過性を有する収容体と、前記発光部材の前記リード電極に通電可能に接続されるとともに、前記収容体に取り付けられた口金とを具備し、
前記収容体は、内部の少なくとも一部に前記発光部材からの光を反射するための光反射部が設けられていることを特徴とする照明ランプ。3. The light-emitting member according to claim 1 or 2, a light-transmissive container for housing the light-emitting member, and an energized connection to the lead electrode of the light-emitting member, and the container. And a base attached to the
An illumination lamp, wherein the housing has a light reflecting portion for reflecting light from the light emitting member at least in a part of the inside of the housing. 前記光反射部は、前記発光部材の光の照射方向に沿って形成されることを特徴とする請求項３記載の照明ランプ。The illumination lamp according to claim 3, wherein the light reflecting portion is formed along a direction in which the light emitting member emits light. 前記光反射部は、前記発光部材の光の照射方向に平行な複数本の棒状体が輪状に配置されて形成されることを特徴とする請求項３または４記載の照明ランプ。5. The illumination lamp according to claim 3, wherein the light reflecting portion is formed by arranging a plurality of rods parallel to a light irradiation direction of the light emitting member in a ring shape. 6.
JP2002293914A 2002-10-07 2002-10-07 Lighting lamp Expired - Fee Related JP3682449B2 (en)

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WO2006001352A1 (en) * 2004-06-25 2006-01-05 Sanyo Electric Co., Ltd. Light-emitting device
WO2008071178A1 (en) * 2006-12-15 2008-06-19 Osram Gesellschaft mit beschränkter Haftung Lamp comprising a base and at least light-emitting semiconductor component
WO2009037888A1 (en) * 2007-09-22 2009-03-26 Krongthip Innovation Inc. Polychromatic light emitting diode device and electric spectacular cable using same
JP2020031212A (en) * 2018-08-23 2020-02-27 弘凱光電（深セン）有限公司 Light emitting module and light emitting string device
JP2020111313A (en) * 2019-01-11 2020-07-27 億光電子工業股▲ふん▼有限公司Ｅｖｅｒｌｉｇｈｔ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Vehicle lighting device
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WO2006001352A1 (en) * 2004-06-25 2006-01-05 Sanyo Electric Co., Ltd. Light-emitting device
WO2008071178A1 (en) * 2006-12-15 2008-06-19 Osram Gesellschaft mit beschränkter Haftung Lamp comprising a base and at least light-emitting semiconductor component
US8415895B2 (en) 2006-12-15 2013-04-09 Osram Gesellschaft Mit Beschrankter Haftung Lamp comprising a base and at least one light-emitting semiconductor component
WO2009037888A1 (en) * 2007-09-22 2009-03-26 Krongthip Innovation Inc. Polychromatic light emitting diode device and electric spectacular cable using same
DE102011000120B4 (en) * 2010-01-28 2021-04-15 Infineon Technologies Ag Electronic light emitting device and method for making the same
JP2020031212A (en) * 2018-08-23 2020-02-27 弘凱光電（深セン）有限公司 Light emitting module and light emitting string device
JP2020111313A (en) * 2019-01-11 2020-07-27 億光電子工業股▲ふん▼有限公司Ｅｖｅｒｌｉｇｈｔ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Vehicle lighting device
KR102161811B1 (en) * 2019-03-22 2020-10-05 (주)코아시아 Light emitting diode and light emitting diode package

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