JP2004030929A - Led device and led lighting device - Google Patents

Led device and led lighting device Download PDF

Info

Publication number
JP2004030929A
JP2004030929A JP2002180702A JP2002180702A JP2004030929A JP 2004030929 A JP2004030929 A JP 2004030929A JP 2002180702 A JP2002180702 A JP 2002180702A JP 2002180702 A JP2002180702 A JP 2002180702A JP 2004030929 A JP2004030929 A JP 2004030929A
Authority
JP
Japan
Prior art keywords
light
light emitting
led
base
emitting diode
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
Application number
JP2002180702A
Other languages
Japanese (ja)
Inventor
Koichi Honda
本多　宏一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Priority to JP2002180702A priority Critical patent/JP2004030929A/en
Publication of JP2004030929A publication Critical patent/JP2004030929A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
    • H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
  • Led Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED (a light-emitting display) device and an LED lighting device with LED's arranged in high density. <P>SOLUTION: The LED device 1 is provided with a translucent member 5, a pair of conductors 3, 3 arranged in opposition inside the translucent member 5, and power-feeding parts 14, 14 electrically connected with one of the pair of the conductors 3, 3. It is further provided with a base 4 set at the end of the translucent member 5, and a plurality of light-emitting diodes 2 of which one of electrodes is situated on one conductor 3 and the other electrode is electrically connected with the other conductor 3, and at the same time, each of which is connected in parallel with the pair of the conductors 3, 3. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】本発明は、発光ダイオードを光源として用いたＬＥＤ装置およびＬＥＤ照明装置に関する。
【０００２】
【従来の技術】青色発光ダイオードの発明により、近年、青色発光ダイオードにＹＡＧ蛍光体を用いて白色光を出射する照明装置が提供されている。発光ダイオードを光源として用いると、蛍光ランプに比べて熱損失が小さく、低電力で長寿命であるという利点がある。そして、蛍光ランプに代替可能なＬＥＤランプは、例えば登録実用新案公報第３０７５９９６号（従来技術）に開示されており、その構成は図５に示すとおりである。
【０００３】
図５に示すＬＥＤランプ５０は、複数個のＬＥＤ５１を薄い金属板からなる可撓性部材５２によって連鎖させてＬＥＤ連鎖体５３に形成し、このＬＥＤ連鎖体５３を透明アクリル樹脂で形成されたチューブ５４内に挿通して構成されている。そして、チューブ５４の両端に一本の接続ピン５５，５５を備えた口金５６，５６が設けられ、ＬＥＤ連鎖体５３の両端は、接続ピン５５，５５に電気的かつ機械的に接続されている。
【０００４】
そして、ＬＥＤランプ５０は、ＬＥＤ５１で発光された光をチューブ５４に混入または塗布された蛍光材や燐光材で２次的に放射させ、または、拡散材や反射材で拡散、反射させることにより、チューブ５４の全面に亘って発光させると記載されている。
【０００５】
【発明が解決しようとする課題】従来技術は、ＬＥＤ５１が可撓性部材５２により直列接続されているので、１個のＬＥＤ５１と可撓性部材５２が電気的に非接続状態になると、ＬＥＤランプ５０は不点になるという欠点を有する。
【０００６】
また、近年、ＬＥＤランプは、全光束の大きい放射光を得るためにＬＥＤを高密度に配設しているものが要望されており、この場合、チューブ５４内に複数本のＬＥＤ連鎖体５３を配設することが困難であるという問題があった。
【０００７】
本発明は、不点になりにくく、また、ＬＥＤを高密度に配設しているＬＥＤ装置およびＬＥＤ照明装置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】請求項１に記載のＬＥＤ装置の発明は、管状または棒状に形成されている透光性部材と；透光性部材の内部に互いに対向するようにして配設されている一対の導電体と；一対の導電体の一方に電気的に接続されている給電部を有し、透光性部材の端部に設けられている口金と；一方の電極部が一方の導電体上に位置し、他方の電極部が他方の導電体と電気的に接続されると共に、一対の導電体に対して互いに並列的に接続されている複数個の発光ダイオードと；を具備していることを特徴とする。
【０００９】
本発明および以下の各発明において、特に言及しない限り、各構成は以下による。
【００１０】
透光性部材は、管状の透光性バルブであってもよく、バルブ内を透光性の充填材で充填してもよい。また、発光ダイオードや導電体の周囲をモールドして棒状にしてもよい。また、管状または棒状の形状は問わない。
【００１１】
「一方の電極部が一方の導電体上に位置される」とは、一対の導電体のどちらか一方に位置していることを意味する。すなわち、全ての発光ダイオードが１個の導電体上に位置してもよく、少なくとも１個の発光ダイオードが残余の発光ダイオードと異なる導電体上に位置していてもよい。
【００１２】
「電極部」とは、発光ダイオードにおいて、発光ダイオードの電極に電気的に接続している電源入力部を意味する。
【００１３】
口金の給電部は、一対の導電体の一方、他方にそれぞれ電気的に接続される２つを有している。そして、透光性部材の両端部にそれぞれ口金を設け、各口金が１つの給電部を有するようにしてもよく、透光性部材の一端部に口金を設け、この口金に２つの給電部を有するようにしてもよい。
【００１４】
ＬＥＤ装置は、所望の波長の光を放射するように構成されていればよく、発光ダイオードが発光する光も特に限定されないものである。例えば、発光ダイオードは青色光を発光し、透光性部材の外表面あるいは外表面の近傍の内方にＹＡＧ蛍光体を設けて、ＬＥＤ装置から白色光を放射するように構成してもよく、または、発光ダイオードは紫外線を発し、同じく透光性部材に紫外線を吸収し可視光を放射する蛍光材（例えばハロリン酸カリウムなど）を設けて、ＬＥＤ装置から可視光を放射するように構成してもよい。あるいは、発光ダイオードが白色光を放射するものであってもよい。
【００１５】
本発明によれば、複数個の発光ダイオードは一対の導電体に対して互いに並列的に接続されているので、複数個のうちの１個以上の発光ダイオードが不点となっても、残余の発光ダイオードが発光し、この光または波長変換された光が透光性部材を通過して外部へ放射される。
【００１６】
請求項２に記載のＬＥＤ装置の発明は、管状または棒状に形成されている透光性部材と；給電部を有し、透光性部材の端部に設けられている口金と；透光性部材の内部に配設されている管状または棒状の基台と；基台の外表面に個別の電極および当該外表面より内方側に共通の電極が形成されている複数個の発光ダイオードと；口金の一方の給電部および共通の電極を電気的に接続している第１の導電部材と、口金の他方の給電部および個別の電極を電気的に接続している第２の導電部材を有する導電体と；を具備していることを特徴とする。
【００１７】
口金の給電部は、第１および第２の導電部材にそれぞれ電気的に接続される２つを有している。そして、透光性部材の両端部にそれぞれ口金を設け、各口金がそれぞれ一方の給電部、他方の給電部を有するようにしてもよく、透光性部材の一端部に口金を設け、この口金に一方および他方の給電部を有するようにしてもよい。
【００１８】
複数個の発光ダイオードは、共通の電極が第１の導電部材に接続され、個別の電極が第２の導電部材に接続されているので、第１および第２の導電部材に対して並列的に接続されている。したがって、例え不点となった発光ダイオードが発生しても、残余の発光ダイオードは発光する。
【００１９】
本発明によれば、管状または棒状の基台の透光性部材に沿う外表面に高密度に多数の発光ダイオードが形成され、全光束の大きい光が放射される。
【００２０】
請求項３に記載のＬＥＤ照明装置の発明は、請求項１または２記載のＬＥＤ装置と；このＬＥＤ装置を配設しているＬＥＤ照明装置本体と；ＬＥＤ装置の発光ダイオードを発光させる点灯装置と；を具備していることを特徴とする。
【００２１】
ＬＥＤ照明装置とは、ＬＥＤ装置の放射光を利用するあらゆる装置を含む広い概念であり、例えば照明器具、液晶などのバックライト装置およびこれを組み込んだパーソナルコンピュータ、テレビジョン受像機、ＧＰＳ機器などの各種情報機器、画像読取装置のＬＥＤ照明装置およびこれを組み込んだ複写機、ファクシミリ、スキャナなどのＯＡ機器などのＬＥＤ照明装置を含む。
【００２２】
発光ダイオードを発光（点灯）させるＡＣ−ＤＣ変換装置や電圧調整装置などの点灯装置は、ＬＥＤ照明装置本体内に設けてもよく、ＬＥＤ照明装置と別置であってもよい。
【００２３】
本発明によれば、請求項１または２記載のＬＥＤ装置の作用を有するＬＥＤ照明装置が提供される。
【００２４】
【発明の実施の形態】以下、本発明の一実施の形態について、図面を参照して説明する。まず、本発明の第１の実施形態について説明する。
【００２５】
図１〜図２は、本発明の第１の実施形態を示し、図１はＬＥＤ装置の概略正面図、図２は発光ダイオードの概略縦断面図である。
【００２６】
図１において、ＬＥＤ装置１は、発光ダイオード２、導電体３、口金４および透光性部材５を有して構成されている。
【００２７】
発光ダイオード２は、図２に示すように、半導体発光素子６、第１の蛍光体７、第２の蛍光体８およびワイヤ９を有して構成されている。
【００２８】
半導体発光素子６は、絶縁性の基板上に積層されたｐ型層およびｎ型層のそれぞれの表面に図示しない一対の電極（電極部）が形成されており、この電極（電極部）の一方は導電体３に電気的に接続され、他方はワイヤ９に電気的に接続されている。そして、半導体発光素子６は、ｐ型層とｎ型層との間のｐ−ｎ接合域を発光層として光を発光するように構成され、例えばＧａＮ／ＩｎＧａＮからなっている。また、半導体発光素子６上に、第１の蛍光体７および第２の蛍光体８が積層されている。第１の蛍光体７および第２の蛍光体８は、それぞれ６ＭｇＯＡｓ２Ｏ５：Ｍｎ４＋蛍光体（マンガン付活６ＭｇＯＡｓ２Ｏ５の蛍光体）、Ｙ３Ａｌ５Ｏ１２：Ｇｄ３＋，Ｃｅ３＋蛍光体（ガドリニウム、セリウム付活Ｙ３Ａｌ５Ｏ１２の蛍光体）である。
【００２９】
発光ダイオード２の一対の電極（電極部）間に直流電圧例えばＤＣ３．４Ｖが印加されると、半導体発光素子６が４００〜５００ｎｍにピーク波長（４５０ｎｍ）を有する光（青色）を発光する。そして、半導体発光素子６が発光した４００〜５００ｎｍの光の一部により、第１の蛍光体７および第２の蛍光体８が励起される。すなわち、第２の蛍光体８は、Ｇｄ３＋，Ｃｅ３＋が励起され、主として５００〜６００ｎｍの波長の光（黄色）を発光する。また、第１の蛍光体７は、Ｍｎ４＋が励起され、主として６００〜７００ｎｍの波長の光（赤色）を発光する。半導体発光素子６、第１の蛍光体７および第２の蛍光体８が発光したそれぞれの光は、混色されて白色光となり、発光ダイオード２の前方に出射される。
【００３０】
発光ダイオード２は、図１に示すように、複数個が一対の導電体３，３に対して互いに並列的に接続されている。
【００３１】
導電体３，３は、薄く細長い金属板例えば銅板からなり、互いに対向するようにして配設され、一方の導電体３上に発光ダイオード２を位置している。すなわち、発光ダイオード２は、導電性接着材により一方の導電体３上に固着されており、半導体発光素子６の下面に露出している一方の電極部が導電性接着材を介して導電体３と電気的に接続されている。また、他方の導電体３は、ワイヤ９の先端が溶接され、ワイヤ９と電気的に接続されている。そして、一対の導電体３，３の一端は、それぞれ口金４，４の給電部に電気的かつ機械的に接続されている。
【００３２】
口金４，４は、それぞれ有底の円筒体１３およびこの円筒体１３の底部１３ａに配設された給電部としての接続ピン１４を有して構成されている。円筒体１３は、例えば肉厚０．３ｍｍのアルミニウムからなり、接続ピン１４は、例えば黄銅からなっている。そして、接続ピン１４は、円筒体１３の底部１３ａに絶縁材１５を介して固着され、底部１３ａの外表面から外方に向かって突設されている。すなわち、円筒体１３と接続ピン１４は電気的に絶縁されている。また、接続ピン１４は、円筒体１３の内部において、溶接等により導電体３の一端に機械的および電気的に接続している。そして、口金４，４は、棒状に形成された透光性部材５の両端部にそれぞれ設けられている。
【００３３】
透光性部材５は、例えば透光性のエポキシ樹脂、シリコン樹脂、ポリカーボネート樹脂またはガラスなどからなり、一対の導電体３，３および発光ダイオード２を包囲（モールド）して棒状に形成されたものである。また、透光性部材５は、一対の導電体３，３が透光性部材５に沿い透光性部材５の内部に互いに対向するようにして配設されるように形成されている。そして、一対の導電体３，３および発光ダイオード２が包囲（モールド）されることにより、一対の導電体３，３の撓みや一対の導電体３，３および発光ダイオード２の振動等が防止されるので、発光ダイオード２が導電体３上から取り外れることが防止される。
【００３４】
そして、上述のように構成されたＬＥＤ装置１は、口金４，４の接続ピン１４，１４が給電されると、発光ダイオード２から白色光が放射され、透光性部材５の外表面から出射される。
【００３５】
そして、複数個の発光ダイオード２は、一対の導電体３，３に対して互いに並列的に接続されているので、そのうちの１個以上の発光ダイオード２が不点となっても、残余の発光ダイオード２は発光される。すなわち、複数個の発光ダイオード２のうち、不点の発光ダイオード２が発生しても、ＬＥＤ装置１から継続して白色光が放射される。
【００３６】
なお、一対の導電体３，３は、捻転して配設してもよく、この場合、複数個の発光ダイオード２の放射方向を異ならせることができる。また、発光ダイオード２は、導電体３の一方の面（表面）に限らず、裏面にも配設してよい。これにより、ＬＥＤ装置１の放射光の出射方向の範囲が広がる。
【００３７】
また、透光性部材５は、管状のバルブを用いてもよく、内部が中空であってもよい。また、口金４は、接続ピン１４を設けず、円筒体１３に導電体３を電気的および機械的に接続してもよい。
【００３８】
次に、本発明の第２の実施形態について述べる。
【００３９】
図３は、本発明の第２の実施形態を示すＬＥＤ装置の概略斜視図である。なお、図１と同一部分および同一部分に相当する部分には同一符号を付して説明は省略する。
【００４０】
図３に示すＬＥＤ装置１６は、基台１７、発光ダイオード１８、導電体１９、口金４および透光性部材５を有して構成されている。
【００４１】
基台１７は、略円筒体に形成された管状の導電性樹脂からなり、透光性部材５に沿い透光性部材５の内部に配設されている。
【００４２】
発光ダイオード１８は、基台１７の外表面にマトリックス状に個々に形成されている。また、発光ダイオード１８は、基台１７上に、図２に示す半導体発光素子６、第１の蛍光体７および第２の蛍光体８が積層されて形成されている。そして、基台１７の外表面には、各発光ダイオード１８の個別の電極１８ａが形成され、基台１７の外表面より内方側には、各発光ダイオード１８の共通の電極１８ｂが形成されている。そして、複数個の発光ダイオード１８は、透光性部材５に沿う列毎に個別の電極１８ａがワイヤ９により直列接続されて第２の導電部材１９ｂに電気的に接続されている。また、共通の電極１８ｂは、基台１７により第１の導電部材１９ａに電気的に接続されている。
【００４３】
導電体１９は、例えば銅からなる棒状の第１の導電部材１９ａおよび第２の導電部材１９ｂからなっている。そして、基台１７の一方の端部１７ａに第１の導電部材１９ａが配設され、他方の端部１７ｂに図示しない絶縁材を介して第２の導電部材１９ｂが配設されている。すなわち、第１の導電部材１９ａは、基台１７と電気的に接続され、第２の導電部材１９ｂは、基台１７と絶縁されている。そして、第１および第２の導電部材１９ａ，１９ｂは、口金４，４の給電部としての接続ピン１４，１４に機械的および電気的に接続され、基台１７を口金４，４に支持している。これにより、第１の導電部材１９ａは、口金４の一方の接続ピン１４および発光ダイオード１８の共通の電極１８ｂを電気的に接続し、第２の導電部材１９ｂは、口金４の他方の接続ピン１４および発光ダイオード１８の個別の電極１８ａを電気的に接続している。したがって、複数個の発光ダイオード１８は、透光性部材５に沿う列毎に、第１および第２の導電部材１８ａ，１８ｂに対して並列的に接続されている。
【００４４】
上述のように構成されたＬＥＤ装置１６は、口金４，４の接続ピン１４，１４が給電されると、発光ダイオード１８から白色光が放射され、透光性部材５の外表面から出射される。そして、発光ダイオード１８は、管状の基台１７の透光性部材５に沿う外表面に高密度に多数形成されるので、全光束の大きい放射光が得られる。
【００４５】
また、複数個の発光ダイオード１８は、透光性部材５に沿う列毎に、第１および第２の導電部材１９ａ，１９ｂに対して互いに並列的に接続されているので、ワイヤ９の切断等により不点の発光ダイオード１８が発生しても、その不点の発光ダイオード１８が位置する透光性部材５に沿う列以外の残余の発光ダイオード１８および不点の発光ダイオード１８よりも第２の導電部材１８ｂ側に位置する残余の発光ダイオード１８が発光してＬＥＤ装置１６から継続して白色光が放射される。
【００４６】
なお、基台１７は棒状に形成され、その端部１７ａ，１７ｂに第１および第２の導電部材１９ａ，１９ｂを接続してもよい。
【００４７】
また、口金４は、接続ピン１４を設けず、円筒体１３の底部１３ａに第１および第２の導電部材１９ａ，１９ｂを貫通させ、第１および第２の導電部材１９ａ，１９ｂを接続ピン１４の代替とするように形成してもよい。
【００４８】
また、上記第１または第２の実施形態において、透光性部材５は、その形状は限定されるものではなく、円柱状、角柱状の他、楕円形状などであってもよい。また、透光性部材５の外表面に凹凸などのレンズ機能を設けてもよい。これにより、発光ダイオード１８からの光を集光させることができる。
【００４９】
次に、本発明の第３の実施形態について述べる。
【００５０】
図４は、本発明の第３の実施形態を示すＬＥＤ照明装置を示し、（ａ）は一部切り欠き正面図、（ｂ）は一部切り欠き下面図である。なお、図１と同一部分には同一符号を付して説明は省略する。
【００５１】
図４に示すＬＥＤ照明装置は、台所等に配設される照明器具２０としての流し元灯である。照明器具２０は、ＬＥＤ照明装置本体としての照明器具本体２１の内部の両端側にランプソケット２２，２２が設けられ、これらランプソケット２２，２２間に図１に示すＬＥＤ装置１が装着されている。そして、照明器具本体２１の開口部には、アクリルからなる乳白色のセード２３が取り付けられている。また、照明器具本体２１は、内部の一端部側に点灯装置２４を配設している。点灯装置２４は、ＬＥＤ装置１の発光ダイオード２を発光させるものであり、回路基板２５に図示しない電子部品が実装されて構成されている。
【００５２】
そして、点灯装置２４に隣接してスイッチ２６が配設されている。スイッチ２６は、ロータリスイッチであり、紐２７を引っ張ると、点灯装置２４に商用交流電源から交流電圧が供給される。点灯装置２４は、交流電圧を直流電圧に変換してＬＥＤ装置１を全光点灯させる。さらに、紐２７を引っ張ると、点灯装置２４は直流電圧の出力を低下させて、ＬＥＤ装置１を調光点灯例えば７０％点灯させる。そして、さらに、紐２７を引っ張ると、ＬＥＤ装置１は消灯される。
【００５３】
照明器具２０は、ＬＥＤ装置１に不点の発光ダイオード２が発生しても、残余の発光ダイオード２が発光するので、継続して白色光による照明がなされる。
【００５４】
【発明の効果】請求項１の発明によれば、複数個の発光ダイオードは一対の導電体に対して互いに並列的に接続されているので、不点の発光ダイオードが発生しても、残余の発光ダイオードを発光させることができ、ＬＥＤ装置から継続して放射光を得ることができる。
【００５５】
請求項２の発明によれば、管状または棒状の基台の透光性部材に沿う外表面に多数の発光ダイオードが形成可能であるので、全光束の大きい放射光を得ることができる。
【００５６】
請求項３の発明によれば、請求項１または２記載のＬＥＤ装置の作用を有するＬＥＤ照明装置を提供することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施形態を示すＬＥＤ装置の概略正面図。
【図２】同じく、発光ダイオードの概略縦断面図。
【図３】本発明の第２の実施形態を示すＬＥＤ装置の概略斜視図。
【図４】本発明の第３の実施形態を示すＬＥＤ照明装置であり、（ａ）は一部切り欠き正面図、（ｂ）は一部切り欠き下面図。
【図５】従来技術のＬＥＤランプを示し、（ａ）はＬＥＤランプの構成図、（ｂ）はＬＥＤ連鎖体の構成図。
【符号の説明】
１，１６…ＬＥＤ装置、２，１８…発光ダイオード、３，１９…導電体、４…口金、５…透光性部材、１７…基台、２０…ＬＥＤ照明装置としての照明器具、２１…ＬＥＤ照明装置本体としての照明器具本体、２４…点灯装置[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED device using a light emitting diode as a light source and an LED lighting device.
[0002]
2. Description of the Related Art In recent years, according to the invention of a blue light emitting diode, an illuminating device which emits white light by using a YAG phosphor in a blue light emitting diode has been provided. When a light emitting diode is used as a light source, there is an advantage that heat loss is small, low power and long life are obtained as compared with a fluorescent lamp. An LED lamp that can be substituted for a fluorescent lamp is disclosed in, for example, Japanese Utility Model Publication No. 3075996 (prior art), and the configuration is as shown in FIG.
[0003]
In the LED lamp 50 shown in FIG. 5, a plurality of LEDs 51 are linked by a flexible member 52 made of a thin metal plate to form an LED chain 53, and the LED chain 53 is formed of a tube formed of a transparent acrylic resin. 54. Then, bases 56, 56 having one connection pin 55, 55 are provided at both ends of the tube 54, and both ends of the LED chain 53 are electrically and mechanically connected to the connection pins 55, 55. .
[0004]
The LED lamp 50 emits the light emitted from the LED 51 secondarily with a fluorescent material or a phosphorescent material mixed or applied to the tube 54, or by diffusing and reflecting the light with a diffusing material or a reflecting material. It is described that light is emitted over the entire surface of the tube 54.
[0005]
In the prior art, since the LED 51 is connected in series by a flexible member 52, when one LED 51 and the flexible member 52 are electrically disconnected, an LED lamp is provided. 50 has the drawback that it is inconsistent.
[0006]
In recent years, it has been demanded that the LED lamps have LEDs arranged at a high density in order to obtain emitted light having a large total luminous flux. In this case, a plurality of LED chains 53 are arranged in a tube 54. There was a problem that it was difficult to arrange.
[0007]
An object of the present invention is to provide an LED device and an LED lighting device in which LEDs are hardly dissatisfied and LEDs are arranged at a high density.
[0008]
According to a first aspect of the present invention, there is provided an LED device comprising: a light-transmitting member formed in a tubular or rod-like shape; and disposed inside the light-transmitting member so as to face each other. A pair of conductors provided; a base provided at an end of the light-transmitting member having a power supply portion electrically connected to one of the pair of conductors; A plurality of light-emitting diodes, which are located on the conductor, and the other electrode portion is electrically connected to the other conductor, and is connected to the pair of conductors in parallel with each other. It is characterized by doing.
[0009]
In the present invention and the following inventions, each configuration is as follows unless otherwise specified.
[0010]
The translucent member may be a tubular translucent bulb, and the interior of the bulb may be filled with a translucent filler. Alternatively, the periphery of the light emitting diode or the conductor may be molded into a rod shape. Moreover, the shape of a tube or a rod is not limited.
[0011]
“One electrode portion is located on one conductor” means that it is located on one of a pair of conductors. That is, all the light emitting diodes may be located on one conductor, and at least one light emitting diode may be located on a conductor different from the remaining light emitting diodes.
[0012]
“Electrode unit” means a power input unit of a light emitting diode that is electrically connected to an electrode of the light emitting diode.
[0013]
The power supply part of the base has two electrically connected to one of the pair of conductors and the other to the other. Then, caps may be provided at both ends of the translucent member, and each cap may have one power supply unit. A cap is provided at one end of the translucent member, and the two power supply units are connected to the cap. You may have it.
[0014]
The LED device only needs to be configured to emit light of a desired wavelength, and the light emitted by the light emitting diode is not particularly limited. For example, the light emitting diode may emit blue light, and may be configured to provide a YAG phosphor inside or near the outer surface or outer surface of the translucent member to emit white light from the LED device, Alternatively, the light emitting diode emits ultraviolet light, and a fluorescent material (for example, potassium halophosphate or the like) that absorbs ultraviolet light and emits visible light is provided in the translucent member, so that the LED device emits visible light. Is also good. Alternatively, the light emitting diode may emit white light.
[0015]
According to the present invention, the plurality of light emitting diodes are connected to the pair of conductors in parallel with each other. The light emitting diode emits light, and this light or wavelength-converted light passes through the light transmitting member and is emitted to the outside.
[0016]
The invention of the LED device according to claim 2 is a light-transmitting member formed in a tubular or rod-like shape; a base having a power supply portion and provided at an end of the light-transmitting member; A tubular or rod-shaped base disposed inside the member; a plurality of light emitting diodes each having an individual electrode formed on an outer surface of the base and a common electrode formed on an inner side of the outer surface; A first conductive member electrically connecting one power supply portion of the base and the common electrode; and a second conductive member electrically connecting the other power supply portion of the base and the individual electrode. And a conductor.
[0017]
The power supply portions of the base have two power supply portions electrically connected to the first and second conductive members, respectively. The bases may be provided at both ends of the translucent member, and each base may have one power supply unit and the other power supply unit. The base is provided at one end of the translucent member. May have one and the other power supply units.
[0018]
In the plurality of light emitting diodes, the common electrode is connected to the first conductive member, and the individual electrodes are connected to the second conductive member, so that the plurality of light emitting diodes are connected in parallel to the first and second conductive members. It is connected. Therefore, even if a defective light emitting diode occurs, the remaining light emitting diodes emit light.
[0019]
According to the present invention, a large number of light emitting diodes are formed at high density on the outer surface along the light transmitting member of the tubular or rod-shaped base, and light having a large total luminous flux is emitted.
[0020]
According to a third aspect of the present invention, there is provided an LED lighting device according to the first or second aspect; an LED lighting device main body in which the LED device is disposed; and a lighting device for emitting a light emitting diode of the LED device. ; Characterized by having;
[0021]
The LED lighting device is a broad concept including any device that uses the emitted light of the LED device. For example, a lighting device, a backlight device such as a liquid crystal device, and a personal computer, a television receiver, a GPS device, and the like incorporating the same. Includes LED lighting devices such as various information devices, LED lighting devices for image reading devices, and OA devices such as copiers, facsimiles, and scanners incorporating the same.
[0022]
A lighting device such as an AC-DC converter or a voltage regulator for emitting (lighting) the light emitting diode may be provided in the LED lighting device main body or may be provided separately from the LED lighting device.
[0023]
According to the present invention, there is provided an LED lighting device having the function of the LED device according to claim 1 or 2.
[0024]
Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described.
[0025]
1 and 2 show a first embodiment of the present invention. FIG. 1 is a schematic front view of an LED device, and FIG. 2 is a schematic longitudinal sectional view of a light emitting diode.
[0026]
In FIG. 1, the LED device 1 includes a light emitting diode 2, a conductor 3, a base 4, and a light transmitting member 5.
[0027]
The light emitting diode 2 includes a semiconductor light emitting element 6, a first phosphor 7, a second phosphor 8, and a wire 9, as shown in FIG.
[0028]
The semiconductor light emitting element 6 has a pair of electrodes (electrode portions) (not shown) formed on respective surfaces of a p-type layer and an n-type layer laminated on an insulating substrate. Is electrically connected to the conductor 3, and the other is electrically connected to the wire 9. The semiconductor light-emitting element 6 is configured to emit light using the pn junction region between the p-type layer and the n-type layer as a light-emitting layer, and is made of, for example, GaN / InGaN. A first phosphor 7 and a second phosphor 8 are stacked on the semiconductor light emitting element 6. The first phosphor 7 and the second phosphor 8, respectively 6MgOAs 2 O 5: Mn 4+ phosphor (the phosphor of the manganese-activated 6MgOAs 2 O 5), Y 3 Al 5 O 12: Gd 3+, Ce 3+ It is a phosphor (gadolinium, cerium activated Y 3 Al 5 O 12 phosphor).
[0029]
When a DC voltage, for example, 3.4 V DC is applied between a pair of electrodes (electrode portions) of the light emitting diode 2, the semiconductor light emitting element 6 emits light (blue) having a peak wavelength (450 nm) at 400 to 500 nm. Then, the first phosphor 7 and the second phosphor 8 are excited by a part of the light of 400 to 500 nm emitted from the semiconductor light emitting element 6. That is, the second phosphor 8 is excited by Gd 3+ and Ce 3+ and emits light (yellow) mainly having a wavelength of 500 to 600 nm. In addition, the first phosphor 7 emits light (red) mainly having a wavelength of 600 to 700 nm when Mn 4+ is excited. The respective lights emitted by the semiconductor light emitting element 6, the first phosphor 7, and the second phosphor 8 are mixed to form white light, and emitted to the front of the light emitting diode 2.
[0030]
As shown in FIG. 1, a plurality of light emitting diodes 2 are connected to the pair of conductors 3 and 3 in parallel with each other.
[0031]
The conductors 3 and 3 are made of a thin and long metal plate, for example, a copper plate, are disposed so as to face each other, and the light emitting diode 2 is located on one of the conductors 3. That is, the light emitting diode 2 is fixed on the one conductor 3 by a conductive adhesive, and one electrode portion exposed on the lower surface of the semiconductor light emitting element 6 is connected to the conductor 3 via the conductive adhesive. Is electrically connected to The other conductor 3 is electrically connected to the wire 9 by welding the tip of the wire 9. One end of each of the pair of conductors 3 and 3 is electrically and mechanically connected to a power supply portion of each of the bases 4 and 4.
[0032]
Each of the bases 4 and 4 has a cylindrical body 13 having a bottom and a connection pin 14 as a power supply unit disposed on the bottom 13 a of the cylindrical body 13. The cylindrical body 13 is made of, for example, aluminum having a thickness of 0.3 mm, and the connection pin 14 is made of, for example, brass. The connection pin 14 is fixed to the bottom 13a of the cylindrical body 13 via an insulating material 15, and protrudes outward from the outer surface of the bottom 13a. That is, the cylindrical body 13 and the connection pins 14 are electrically insulated. The connection pin 14 is mechanically and electrically connected to one end of the conductor 3 by welding or the like inside the cylindrical body 13. The bases 4 and 4 are provided at both ends of the rod-shaped translucent member 5, respectively.
[0033]
The translucent member 5 is made of, for example, translucent epoxy resin, silicon resin, polycarbonate resin, glass, or the like, and is formed in a rod shape by surrounding (molding) the pair of conductors 3 and 3 and the light emitting diode 2. It is. The translucent member 5 is formed such that the pair of conductors 3 and 3 are disposed along the translucent member 5 so as to be opposed to each other inside the translucent member 5. The pair of conductors 3, 3 and the light emitting diode 2 are surrounded (molded), so that the bending of the pair of conductors 3, 3 and the vibration of the pair of conductors 3, 3 and the light emitting diode 2 are prevented. Therefore, the light emitting diode 2 is prevented from being detached from the conductor 3.
[0034]
In the LED device 1 configured as described above, when the connection pins 14 of the bases 4 and 4 are supplied with power, white light is emitted from the light emitting diode 2 and emitted from the outer surface of the translucent member 5. Is done.
[0035]
Since the plurality of light emitting diodes 2 are connected to the pair of conductors 3 and 3 in parallel with each other, even if one or more of the light emitting diodes 2 becomes a point, the remaining light emitting diodes 2 remain. The diode 2 emits light. That is, even when a light emitting diode 2 at a point out of the plurality of light emitting diodes 2 is generated, white light is continuously emitted from the LED device 1.
[0036]
Note that the pair of conductors 3 and 3 may be disposed by being twisted, and in this case, the radiation directions of the plurality of light emitting diodes 2 can be different. In addition, the light emitting diode 2 may be provided not only on one surface (front surface) of the conductor 3 but also on the back surface. Thereby, the range of the emission direction of the emitted light of the LED device 1 is widened.
[0037]
Further, the light-transmitting member 5 may be a tubular valve, and may be hollow inside. Alternatively, the base 4 may electrically and mechanically connect the conductor 3 to the cylindrical body 13 without providing the connection pins 14.
[0038]
Next, a second embodiment of the present invention will be described.
[0039]
FIG. 3 is a schematic perspective view of an LED device showing a second embodiment of the present invention. Note that the same parts as those in FIG. 1 and parts corresponding to the same parts are denoted by the same reference numerals, and description thereof will be omitted.
[0040]
The LED device 16 shown in FIG. 3 includes a base 17, a light-emitting diode 18, a conductor 19, a base 4, and a translucent member 5.
[0041]
The base 17 is made of a tubular conductive resin formed in a substantially cylindrical body, and is disposed inside the light transmitting member 5 along the light transmitting member 5.
[0042]
The light emitting diodes 18 are individually formed in a matrix on the outer surface of the base 17. The light emitting diode 18 is formed by stacking the semiconductor light emitting element 6, the first phosphor 7, and the second phosphor 8 shown in FIG. An individual electrode 18a of each light emitting diode 18 is formed on the outer surface of the base 17, and a common electrode 18b of each light emitting diode 18 is formed on the inner side of the outer surface of the base 17. I have. In the plurality of light emitting diodes 18, individual electrodes 18a are connected in series by the wires 9 for each row along the translucent member 5, and are electrically connected to the second conductive member 19b. The common electrode 18b is electrically connected to the first conductive member 19a by the base 17.
[0043]
The conductor 19 is composed of a rod-shaped first conductive member 19a and a second conductive member 19b made of, for example, copper. A first conductive member 19a is provided at one end 17a of the base 17, and a second conductive member 19b is provided at the other end 17b via an insulating material (not shown). That is, the first conductive member 19a is electrically connected to the base 17, and the second conductive member 19b is insulated from the base 17. The first and second conductive members 19a and 19b are mechanically and electrically connected to connection pins 14 and 14 as power supply portions of the bases 4 and 4, and support the base 17 on the bases 4 and 4. ing. Thus, the first conductive member 19a electrically connects the one connection pin 14 of the base 4 and the common electrode 18b of the light-emitting diode 18, and the second conductive member 19b connects the other connection pin of the base 4 14 and the individual electrodes 18a of the light emitting diode 18 are electrically connected. Therefore, the plurality of light emitting diodes 18 are connected in parallel to the first and second conductive members 18a and 18b for each row along the translucent member 5.
[0044]
In the LED device 16 configured as described above, when the connection pins 14 of the bases 4 and 4 are supplied with power, white light is emitted from the light emitting diode 18 and emitted from the outer surface of the translucent member 5. . The light-emitting diodes 18 are formed at a high density on the outer surface of the tubular base 17 along the light-transmitting member 5, so that emitted light having a large total luminous flux can be obtained.
[0045]
Further, since the plurality of light emitting diodes 18 are connected in parallel to the first and second conductive members 19a and 19b in each row along the translucent member 5, cutting of the wire 9 or the like is performed. Therefore, even if the light emitting diode 18 having a defect is generated, the remaining light emitting diodes 18 other than the row along the translucent member 5 where the light emitting diode 18 is located and the light emitting diode 18 having the defect are second. The remaining light emitting diodes 18 located on the side of the conductive member 18b emit light and the LED device 16 continuously emits white light.
[0046]
The base 17 may be formed in a rod shape, and the first and second conductive members 19a and 19b may be connected to the ends 17a and 17b.
[0047]
In addition, the base 4 does not include the connection pin 14, but allows the first and second conductive members 19 a and 19 b to penetrate the bottom 13 a of the cylindrical body 13 and connect the first and second conductive members 19 a and 19 b to the connection pin 14. May be formed as an alternative.
[0048]
In the first or second embodiment, the shape of the translucent member 5 is not limited, and may be an elliptical shape in addition to a columnar shape, a prismatic shape, or the like. Further, a lens function such as unevenness may be provided on the outer surface of the translucent member 5. Thereby, the light from the light emitting diode 18 can be collected.
[0049]
Next, a third embodiment of the present invention will be described.
[0050]
4A and 4B show an LED lighting device according to a third embodiment of the present invention, wherein FIG. 4A is a partially cutaway front view, and FIG. 4B is a partially cutaway bottom view. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
[0051]
The LED lighting device shown in FIG. 4 is a sink lamp as a lighting fixture 20 disposed in a kitchen or the like. The lighting fixture 20 is provided with lamp sockets 22 on both ends inside a lighting fixture main body 21 as an LED lighting device main body, and the LED device 1 shown in FIG. 1 is mounted between the lamp sockets 22. . A milky white shade 23 made of acrylic is attached to the opening of the lighting fixture body 21. Moreover, the lighting device main body 21 has a lighting device 24 disposed on one end side inside. The lighting device 24 causes the light emitting diode 2 of the LED device 1 to emit light, and is configured by mounting electronic components (not shown) on a circuit board 25.
[0052]
A switch 26 is provided adjacent to the lighting device 24. The switch 26 is a rotary switch, and when the string 27 is pulled, an AC voltage is supplied to the lighting device 24 from a commercial AC power supply. The lighting device 24 converts the AC voltage into a DC voltage and causes the LED device 1 to emit all light. Further, when the string 27 is pulled, the lighting device 24 reduces the output of the DC voltage, and causes the LED device 1 to perform dimmed lighting, for example, 70% lighting. When the string 27 is further pulled, the LED device 1 is turned off.
[0053]
In the lighting fixture 20, even if the light emitting diode 2 of the LED device 1 is pointed out, the remaining light emitting diode 2 emits light, so that illumination with white light is continuously performed.
[0054]
According to the first aspect of the present invention, the plurality of light emitting diodes are connected in parallel to the pair of conductors, so that even if an inconsistent light emitting diode is generated, the remaining light emitting diodes remain. The light emitting diode can emit light, and the emitted light can be continuously obtained from the LED device.
[0055]
According to the second aspect of the present invention, since a large number of light emitting diodes can be formed on the outer surface along the light transmitting member of the tubular or rod-like base, it is possible to obtain emitted light having a large total luminous flux.
[0056]
According to the third aspect of the present invention, it is possible to provide an LED lighting device having the function of the LED device according to the first or second aspect.
[Brief description of the drawings]
FIG. 1 is a schematic front view of an LED device according to a first embodiment of the present invention.
FIG. 2 is a schematic vertical sectional view of the light emitting diode.
FIG. 3 is a schematic perspective view of an LED device according to a second embodiment of the present invention.
FIG. 4 is an LED lighting device according to a third embodiment of the present invention, in which (a) is a partially cutaway front view, and (b) is a partially cutout bottom view.
5A and 5B show a conventional LED lamp, in which FIG. 5A is a configuration diagram of an LED lamp, and FIG. 5B is a configuration diagram of an LED chain.
[Explanation of symbols]
1, 16: LED device, 2, 18: Light emitting diode, 3, 19: Conductor, 4: Base, 5: Translucent member, 17: Base, 20: Lighting fixture as LED lighting device, 21: LED Lighting device body as lighting device body, 24 ... lighting device

Claims (3)

管状または棒状に形成されている透光性部材と；
透光性部材の内部に互いに対向するようにして配設されている一対の導電体と；
一対の導電体の一方に電気的に接続されている給電部を有し、透光性部材の端部に設けられている口金と；
一方の電極部が一方の導電体上に位置し、他方の電極部が他方の導電体と電気的に接続されると共に、一対の導電体に対して互いに並列的に接続されている複数個の発光ダイオードと；
を具備していることを特徴とするＬＥＤ装置。A light-transmitting member formed in a tubular or rod shape;
A pair of conductors disposed inside the translucent member so as to face each other;
A base having a power supply portion electrically connected to one of the pair of conductors and provided at an end of the light-transmitting member;
One electrode portion is located on one conductor, the other electrode portion is electrically connected to the other conductor, and a plurality of conductors are connected in parallel to one pair of conductors. A light emitting diode;
An LED device comprising: 管状または棒状に形成されている透光性部材と；
給電部を有し、透光性部材の端部に設けられている口金と；
透光性部材の内部に配設されている管状または棒状の基台と；
基台の外表面に個別の電極および当該外表面より内方側に共通の電極が形成されている複数個の発光ダイオードと；
口金の一方の給電部および共通の電極を電気的に接続している第１の導電部材と、口金の他方の給電部および個別の電極を電気的に接続している第２の導電部材を有する導電体と；
を具備していることを特徴とするＬＥＤ装置。A light-transmitting member formed in a tubular or rod shape;
A base having a power supply unit and provided at an end of the light transmitting member;
A tubular or rod-shaped base disposed inside the translucent member;
A plurality of light emitting diodes each having a separate electrode on the outer surface of the base and a common electrode on the inner side of the outer surface;
A first conductive member electrically connecting one power supply portion of the base and the common electrode; and a second conductive member electrically connecting the other power supply portion of the base and the individual electrode. A conductor;
An LED device comprising: 請求項１または２記載のＬＥＤ装置と；
このＬＥＤ装置を配設しているＬＥＤ照明装置本体と；
ＬＥＤ装置の発光ダイオードを発光させる点灯装置と；
を具備していることを特徴とするＬＥＤ照明装置。An LED device according to claim 1 or 2;
An LED lighting device main body in which the LED device is provided;
A lighting device for emitting a light emitting diode of the LED device;
An LED lighting device comprising:
JP2002180702A 2002-06-21 2002-06-21 Led device and led lighting device Pending JP2004030929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002180702A JP2004030929A (en) 2002-06-21 2002-06-21 Led device and led lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002180702A JP2004030929A (en) 2002-06-21 2002-06-21 Led device and led lighting device

Publications (1)

Publication Number Publication Date
JP2004030929A true JP2004030929A (en) 2004-01-29

Family

ID=31177734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002180702A Pending JP2004030929A (en) 2002-06-21 2002-06-21 Led device and led lighting device

Country Status (1)

Country Link
JP (1) JP2004030929A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007227305A (en) * 2006-02-27 2007-09-06 Iwasaki Electric Co Ltd Explosion-proof lighting device
JP2007234470A (en) * 2006-03-02 2007-09-13 Idea System Kk Light emitting device
JP2008508706A (en) * 2004-07-27 2008-03-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Light emitting diode assembly
JP2009200011A (en) * 2008-02-25 2009-09-03 Sony Corp Light source unit and light source apparatus, and display device
WO2009145246A1 (en) * 2008-05-29 2009-12-03 ローム株式会社 Led lamp
WO2010058808A1 (en) * 2008-11-19 2010-05-27 ローム株式会社 Led lamp
JP2010153761A (en) * 2008-11-19 2010-07-08 Rohm Co Ltd Led lamp
JP2010529645A (en) * 2007-06-01 2010-08-26 ワッカー ケミー アクチエンゲゼルシャフト Silicon molded member having a light emitter
WO2011064861A1 (en) * 2009-11-26 2011-06-03 Cheng Chiang-Ming Multifunction lighting device
CN102252177A (en) * 2010-03-23 2011-11-23 松下电工株式会社 Light source, lamp socket and illumination device using the lamp socket
JP2012509571A (en) * 2008-11-18 2012-04-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electric lamp
JP2012146738A (en) * 2011-01-07 2012-08-02 Stanley Electric Co Ltd Led module and led lamp
JP2013525971A (en) * 2010-04-23 2013-06-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Lighting device
KR101375388B1 (en) * 2008-04-24 2014-03-17 얀쳉 하오마이 라이팅 사이언스 앤 테크놀로지 컴퍼니, 리미티드 Tubular ｌｅｄ lighting device
CN104482458A (en) * 2014-10-31 2015-04-01 无锡鸿声铝业有限公司 Lighting device having amplifying circuit for background wall
WO2017182094A1 (en) * 2016-04-22 2017-10-26 Osram Opto Semiconductors Gmbh Led module and method for producing an led module

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008508706A (en) * 2004-07-27 2008-03-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Light emitting diode assembly
JP2007227305A (en) * 2006-02-27 2007-09-06 Iwasaki Electric Co Ltd Explosion-proof lighting device
JP4720539B2 (en) * 2006-02-27 2011-07-13 岩崎電気株式会社 Explosion-proof lighting device
JP2007234470A (en) * 2006-03-02 2007-09-13 Idea System Kk Light emitting device
JP2010529645A (en) * 2007-06-01 2010-08-26 ワッカー ケミー アクチエンゲゼルシャフト Silicon molded member having a light emitter
JP2009200011A (en) * 2008-02-25 2009-09-03 Sony Corp Light source unit and light source apparatus, and display device
US9316360B2 (en) 2008-02-25 2016-04-19 Sony Corporation Light source unit, light source device, and display apparatus
JP4609501B2 (en) * 2008-02-25 2011-01-12 ソニー株式会社 Light source device and display device
KR101375388B1 (en) * 2008-04-24 2014-03-17 얀쳉 하오마이 라이팅 사이언스 앤 테크놀로지 컴퍼니, 리미티드 Tubular ｌｅｄ lighting device
WO2009145246A1 (en) * 2008-05-29 2009-12-03 ローム株式会社 Led lamp
US8425081B2 (en) 2008-05-29 2013-04-23 Rohm Co., Ltd. LED lamp
JP2012509571A (en) * 2008-11-18 2012-04-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Electric lamp
JP2010153761A (en) * 2008-11-19 2010-07-08 Rohm Co Ltd Led lamp
US8591057B2 (en) 2008-11-19 2013-11-26 Rohm Co., Ltd. LED lamp
US9052099B2 (en) 2008-11-19 2015-06-09 Rohm Co., Ltd. LED lamp
WO2010058808A1 (en) * 2008-11-19 2010-05-27 ローム株式会社 Led lamp
US9777891B2 (en) 2008-11-19 2017-10-03 Iris Ohyama Inc. LED lamp
WO2011064861A1 (en) * 2009-11-26 2011-06-03 Cheng Chiang-Ming Multifunction lighting device
CN102252177A (en) * 2010-03-23 2011-11-23 松下电工株式会社 Light source, lamp socket and illumination device using the lamp socket
US9318860B2 (en) 2010-03-23 2016-04-19 Panasonic Corporation Light source, lamp socket and illumination device using the lamp socket
JP2013525971A (en) * 2010-04-23 2013-06-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Lighting device
JP2012146738A (en) * 2011-01-07 2012-08-02 Stanley Electric Co Ltd Led module and led lamp
CN104482458A (en) * 2014-10-31 2015-04-01 无锡鸿声铝业有限公司 Lighting device having amplifying circuit for background wall
WO2017182094A1 (en) * 2016-04-22 2017-10-26 Osram Opto Semiconductors Gmbh Led module and method for producing an led module

Similar Documents

Publication Publication Date Title
US11703190B2 (en) Light bulb shaped lamp
EP2095438B1 (en) Lighting device and lighting method
JP6128465B2 (en) Light emitting module
US9312302B2 (en) Light emitting module, lighting apparatus, and lighting fixture
JP2004030929A (en) Led device and led lighting device
BRPI0712439A2 (en) lighting device and lighting method
CN203743910U (en) Lamp and lighting device
JP2004103443A (en) Led lighting device
WO2015145855A1 (en) Spot lighting apparatus
US9013097B2 (en) Light-emitting module, lighting device, and lighting fixture
JP2004103444A (en) Lighting device
US9443832B2 (en) Light emitting device, light source for illumination, and illumination apparatus
KR20090010850U (en) Luminous body using LED module as light source
JP2014044909A (en) Straight pipe type lamp and lighting device
JP2010153761A (en) Led lamp
JP5658831B2 (en) Lamp and lighting device
US9200766B2 (en) Lighting fixture
JP2006147214A (en) Lighting system
JP2016171129A (en) Light emission device and luminaire
JP2002158376A (en) Light emitting diode illuminator
JP2010129508A (en) Led lamp
JP6252732B2 (en) Illumination light source and illumination device
JP5884054B2 (en) Illumination light source and illumination device
JP2012190709A (en) Lamp and lighting system
KR101396584B1 (en) Light emitting diode lighting