JP2007012792A - Package for light emitting device storage, light source and light emitting device - Google Patents

Package for light emitting device storage, light source and light emitting device Download PDF

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JP2007012792A
JP2007012792A JP2005190116A JP2005190116A JP2007012792A JP 2007012792 A JP2007012792 A JP 2007012792A JP 2005190116 A JP2005190116 A JP 2005190116A JP 2005190116 A JP2005190116 A JP 2005190116A JP 2007012792 A JP2007012792 A JP 2007012792A
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light emitting
emitting element
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surface portion
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JP4938255B2 (en
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Tamio Kusano
民男 草野
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Kyocera Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting device comprising a light source which can make an irradiated light as a predetermined emitting radiation angle, and a package for the light emitting element storage with the light emitting source. <P>SOLUTION: Since an overhang side 19 is formed facing a top principal surface 13a of a base 13 when a light source 10 provided with a light emitting element 11 is manufactured, if the liquefied precursor of a first light transparent member 16 is injected into a recess, an open face 16a which attends a part for the releasing part of a precursor is brought into contact with the overhang side 19. The quantity of the precursor is adjusted as injected in within the range which is contacted with this overhang side 19. Consequently, the precursor crosses the overhang side 19, and furthermore an open face 16a goes up so as to prevent getting wet and spreading along with the inner circumference face of the recess. The surface shape of the first light transparent member 16 is formed in a desired shape easily. The degree of angle of radiation from the first light transparent member 16 can be made into a desired angle, so that the light flux of the light emitted from the open face 16a of the first light transparent member 16 may be aligned, resulting in enabling light radiant intensity to be made constant. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、発光素子が収容される発光素子収納用パッケージ、発光素子収納用パッケージに収容される発光素子が発する光を波長変換して外方に放射する光源および光源を備える発光装置に関する。
本発明において、用語「略平行」は、平行を含む。
The present invention relates to a light emitting element storage package in which a light emitting element is accommodated, a light source that converts the wavelength of light emitted from the light emitting element accommodated in the light emitting element accommodation package and emits the light outward, and a light emitting device including the light source.
In the present invention, the term “substantially parallel” includes parallel.

図10は、従来の技術の光源1を正面から見て示す断面図である。従来の技術の光源1は、発光ダイオード(Light Emitting Diode:略称LED)などの発光素子2が発する近紫外線光および青色光などの光を、蛍光体3によって長波長変換して、白色発光する光源である。このような光源1は、放射強度および放熱特性に優れるので、照明用として利用されている。光源1は、基体4、発光素子2、基体4に設けられ発光素子2が載置される載置部5、発光素子2が発する光を反射する反射部材6および蛍光体3が含有される透光性部材7を含んで構成される。   FIG. 10 is a cross-sectional view of the conventional light source 1 as seen from the front. A conventional light source 1 is a light source that emits white light by converting light such as near-ultraviolet light and blue light emitted from a light emitting element 2 such as a light emitting diode (abbreviated LED) into a long wavelength by a phosphor 3. It is. Since such a light source 1 is excellent in radiation intensity and heat dissipation characteristics, it is used for illumination. The light source 1 includes a base 4, a light emitting element 2, a mounting portion 5 provided on the base 4 on which the light emitting element 2 is placed, a reflecting member 6 that reflects light emitted from the light emitting element 2, and a phosphor 3. The optical member 7 is included.

基体4は、絶縁体から成り、平板状に形成され、載置部5が設けられる。基体4は、光源1の内外を電気的に導通接続するためのリード端子およびメタライズ配線などから成る配線導体(図示せず)が設けられ、前記リード端子および前記配線導体は載置部5の周辺から光源1の外側へ導出される。基体4は、酸化アルミニウム質焼結体(アルミナセラミックス)、窒化アルミニウム質焼結体、ムライト質焼結体およびガラスセラミックスなどのセラミックス、またはエポキシ樹脂などの樹脂から成る。基体4がセラミックスから成る場合、配線導体は、タングステン(W)、モリブデン(Mo)−マンガン(Mn)などから成る金属ペーストを高温で焼成して形成される。基体4が樹脂から成る場合、リード端子は、銅(Cu)および鉄(Fe)−ニッケル(Ni)合金などから成り、樹脂と一体にモールド成型されて基体4の内部に設けられる。   The base 4 is made of an insulator, is formed in a flat plate shape, and is provided with a placement portion 5. The substrate 4 is provided with a wiring conductor (not shown) including a lead terminal and a metallized wiring for electrically connecting the inside and outside of the light source 1, and the lead terminal and the wiring conductor are arranged around the mounting portion 5. To the outside of the light source 1. The substrate 4 is made of an aluminum oxide sintered body (alumina ceramics), an aluminum nitride sintered body, a ceramic such as a mullite sintered body and a glass ceramic, or a resin such as an epoxy resin. When the substrate 4 is made of ceramics, the wiring conductor is formed by firing a metal paste made of tungsten (W), molybdenum (Mo) -manganese (Mn), or the like at a high temperature. When the substrate 4 is made of resin, the lead terminal is made of copper (Cu), iron (Fe) -nickel (Ni) alloy, etc., and is molded integrally with the resin and provided inside the substrate 4.

載置部5は、基体4の上側の面部4aに発光素子2を載置するために設けられる。載置部5の周辺に配置される配線導体と発光素子2とは、ボンディングワイヤまたは金属ボールなどの電気接続手段を介して電気的に接続される。   The mounting portion 5 is provided for mounting the light emitting element 2 on the upper surface portion 4 a of the base body 4. The wiring conductor arranged around the mounting portion 5 and the light emitting element 2 are electrically connected through an electrical connection means such as a bonding wire or a metal ball.

反射部材6は、略枠状に形成され、軸線方向一端部が基体4の上側の面部4aに接着固定される。反射部材6の内周面6aは、軸線方向一端部から他端部に向かって拡径するようにテーパ状に形成され、この内周面6aが発光素子2が発する光を反射する反射面6aとなるように形成される。反射部材6は、具体的には、アルミニウム(Al)およびFe−Ni−コバルト(Co)合金などの金属、アルミナセラミックスなどのセラミックスまたはエポキシ樹脂などの樹脂から成り、切削加工、金型成型または押し出し成型などの成形技術によって形成される。反射部材6の反射面6aは、内周面6aを平滑化することによって、または内周面6aにAlなどの金属を蒸着法またはメッキ法によって被着することによって形成される。反射部材6は、半田および銀(Ag)ロウなどのロウ材または樹脂接着材などの接合材によって、載置部5を反射部材6の内周面6aで取り囲むように基体4の上側主面4aに接合される。   The reflecting member 6 is formed in a substantially frame shape, and one end in the axial direction is bonded and fixed to the upper surface portion 4 a of the base 4. The inner peripheral surface 6a of the reflecting member 6 is formed in a tapered shape so as to increase in diameter from one end in the axial direction toward the other end, and the inner peripheral surface 6a reflects the light emitted from the light emitting element 2. It is formed to become. Specifically, the reflecting member 6 is made of metal such as aluminum (Al) and Fe-Ni-cobalt (Co) alloy, ceramics such as alumina ceramics or resin such as epoxy resin, and is processed by cutting, die molding or extrusion. It is formed by a molding technique such as molding. The reflecting surface 6a of the reflecting member 6 is formed by smoothing the inner peripheral surface 6a or by depositing a metal such as Al on the inner peripheral surface 6a by vapor deposition or plating. The reflecting member 6 is made of a solder material such as solder and silver (Ag) solder, or a bonding material such as a resin adhesive, so that the mounting portion 5 is surrounded by the inner peripheral surface 6a of the reflecting member 6 so as to surround the upper main surface 4a of the base 4. To be joined.

透光性部材7は、発光素子2が発する光を長波長側に波長変換する蛍光体3を含有し、反射部材6の内側に発光素子2を覆うように設けられる。蛍光体3は、赤色、緑色、青色および黄色などに波長変換する。透光性部材7は、蛍光体3を含有するエポキシ樹脂またはシリコーン樹脂などによって実現される。透光性部材7は、ディスペンサーなどの注入機によって、発光素子2を覆うように反射部材6の内側に注入され、オーブンで熱硬化され設けられる。   The translucent member 7 includes a phosphor 3 that converts the light emitted from the light emitting element 2 to the longer wavelength side, and is provided inside the reflecting member 6 so as to cover the light emitting element 2. The phosphor 3 converts the wavelength into red, green, blue, yellow, and the like. The translucent member 7 is realized by an epoxy resin or a silicone resin containing the phosphor 3. The translucent member 7 is injected inside the reflecting member 6 so as to cover the light emitting element 2 by an injection machine such as a dispenser, and is thermally cured in an oven.

このように光源1が構成されるので、発光素子2からの光が蛍光体3によって長波長側に波長変換され、所望の波長スペクトルを有する光を取り出すことができる(たとえば特許文献1参照)。   Since the light source 1 is configured in this way, the light from the light emitting element 2 is wavelength-converted to the longer wavelength side by the phosphor 3, and light having a desired wavelength spectrum can be extracted (see, for example, Patent Document 1).

特開2003−37298号公報JP 2003-37298 A

従来の技術の光源1では、透光性部材7が表面張力によって反射部材6の内周面6aを這い上がるように濡れ広がりやすく、これによって反射部材6の内側に注入される透光性部材7の上面7aの形状が安定しないという不具合があった。これによって以下の問題点がある。(1)透光性部材の上面から放射される光の放射角度を一定にすることができない。(2)透光性部材の上面から放射される光束がばらついて放射強度を一定にすることができない。(3)発光素子から発せられる光が透光性部材を透過する光路長にばらつきが生じて、波長変換効率を一定にすることができない。(4)放射強度、軸上光度、輝度および演色性などが光源毎にばらつき、光源毎に特性を略等しくすることができない。(5)色むらおよび強度むらが生ずる。   In the light source 1 of the prior art, the translucent member 7 is likely to wet and spread so as to scoop up the inner peripheral surface 6a of the reflective member 6 by surface tension, and thereby the translucent member 7 injected into the inside of the reflective member 6. There is a problem that the shape of the upper surface 7a is not stable. This has the following problems. (1) The radiation angle of light emitted from the upper surface of the translucent member cannot be made constant. (2) The luminous flux emitted from the upper surface of the translucent member varies and the radiation intensity cannot be made constant. (3) The optical path length through which the light emitted from the light emitting element passes through the translucent member varies, and the wavelength conversion efficiency cannot be made constant. (4) Radiation intensity, axial luminous intensity, luminance, color rendering, etc. vary from light source to light source, and the characteristics cannot be made substantially equal for each light source. (5) Color unevenness and intensity unevenness occur.

したがって本発明の目的は、放射強度、軸上光度、輝度および演色性などのばらつきを低減させ、放射される光を所定の放射光角度とすることが可能な光源、前記光源を構成する発光素子収納用パッケージおよび前記光源を備える発光装置を提供することである。   Accordingly, an object of the present invention is to provide a light source capable of reducing variations in radiation intensity, on-axis luminous intensity, luminance, color rendering, and the like so that the emitted light can have a predetermined radiation angle, and a light-emitting element constituting the light source It is to provide a light emitting device including a storage package and the light source.

本発明は、発光素子が収納される発光素子収納用パッケージであって、
発光素子が収容される凹部が形成される基体と、
前記凹部の底面部分を囲む内面部分に形成され、光反射性を有する光反射面と、
前記内面部分に設けられ、前記凹部の底面部分に臨む張出面を有する張出面部とを含むことを特徴とする発光素子収納用パッケージである。
The present invention is a light emitting element storage package in which a light emitting element is stored,
A base on which a recess for accommodating the light emitting element is formed;
A light reflecting surface formed on the inner surface portion surrounding the bottom portion of the recess, and having light reflectivity;
A package for housing a light emitting element, comprising an overhanging surface portion provided on the inner surface portion and having an overhanging surface facing the bottom surface portion of the recess.

また本発明は、発光素子が収納される発光素子収納用パッケージであって、
発光素子が収容される凹部が形成される基体と、
前記凹部の底面部分を囲む内面部分に設けられ、前記凹部の底面部分に臨む張出面を有する張出面部とを含むことを特徴とする発光素子収納用パッケージである。
Further, the present invention is a light emitting element storage package in which a light emitting element is stored,
A base on which a recess for accommodating the light emitting element is formed;
A light emitting element storage package comprising: an extended surface portion provided on an inner surface portion surrounding a bottom surface portion of the recess and having an extended surface facing the bottom surface portion of the recess.

さらに本発明は、前記張出面部の張出面と前記底面部分の底面とは、略平行に配置されることを特徴とする。   Furthermore, the present invention is characterized in that the projecting surface of the projecting surface portion and the bottom surface of the bottom surface portion are arranged substantially in parallel.

さらに本発明は、前記内面部分には前記張出面部を形成する凸部が形成されることを特徴とする。   Furthermore, the invention is characterized in that a convex portion for forming the protruding surface portion is formed on the inner surface portion.

さらに本発明は、前記内面部分には前記張出面部を形成する溝部が形成されることを特徴とする。   Furthermore, the present invention is characterized in that a groove portion for forming the protruding surface portion is formed in the inner surface portion.

さらに本発明は、前記基体は、相互に接続および分離可能な一対の基部を含み、
一方の基部には、少なくとも前記張出面部が形成されることを特徴とする。
Further, according to the present invention, the base includes a pair of base parts that can be connected and separated from each other,
At least one of the overhanging surface portions is formed on one base portion.

さらに本発明は、前記内面部分の内方に設けられたリング状部材をさらに含み、
前記凸部は、前記リング状部材であることを特徴とする。
Furthermore, the present invention further includes a ring-shaped member provided inside the inner surface portion,
The convex portion is the ring-shaped member.

さらに本発明は、前記発光素子収納用パッケージと、
発光素子と、
前記凹部の底面部分に設けられ、前記発光素子が載置される載置部と、
透光性を有し、前記載置部に載置される前記発光素子の外周を覆って設けられる第1の透光性部材であって、前記張出面部の張出面に当接して設けられる第1の透光性部材とを含むことを特徴とする光源である。
Furthermore, the present invention provides the light emitting element storage package,
A light emitting element;
A mounting portion provided on a bottom surface portion of the concave portion, on which the light emitting element is mounted;
1st translucent member which has translucency and is provided covering the outer periphery of the said light emitting element mounted in the said mounting part, Comprising: It is provided in contact with the overhang | projection surface of the said overhang | projection surface part. It is a light source characterized by including a 1st translucent member.

さらに本発明は、透光性を有し、前記第1の透光性部材に対向して設けられ、蛍光体を含有する第2の透光性部材をさらに含むことを特徴とする。   Furthermore, the present invention is characterized by further including a second translucent member having translucency, provided opposite to the first translucent member, and containing a phosphor.

さらに本発明は、前記発光素子収納用パッケージと、
発光素子と、
前記凹部の底面部分に設けられ、前記発光素子が載置される載置部と、
透光性を有し、前記載置部に載置される前記発光素子の外周を覆って設けられる第1の透光性部材であって、前記張出面部の張出面に当接して設けられる第1の透光性部材と、
透光性を有し、蛍光体が含有されるシート状に形成され、前記第1の透光性部材に対向する位置に前記凸部に当接して設けられる第2の透光性部材とを含むことを特徴とする光源である。
Furthermore, the present invention provides the light emitting element storage package,
A light emitting element;
A mounting portion provided on a bottom surface portion of the concave portion, on which the light emitting element is mounted;
1st translucent member which has translucency and is provided covering the outer periphery of the said light emitting element mounted in the said mounting part, Comprising: It is provided in contact with the overhang | projection surface of the said overhang | projection surface part. A first translucent member;
A second translucent member that has translucency and is formed in a sheet shape containing phosphor, and is provided in contact with the convex portion at a position facing the first translucent member. It is a light source characterized by including.

さらに本発明は、前記載置部は、前記凹部の底面から離間した位置に設けられることを特徴とする。   Furthermore, the present invention is characterized in that the mounting portion is provided at a position separated from the bottom surface of the concave portion.

さらに本発明は、前記第2の透光性部材は、前記張出面の内縁部よりも外方まで延在していることを特徴とする。   Furthermore, the present invention is characterized in that the second translucent member extends outward from the inner edge of the projecting surface.

さらに本発明は、前記第2の透光性部材は、前記第1の透光性部材との間に空隙を有して設けられることを特徴とする。   Furthermore, the present invention is characterized in that the second translucent member is provided with a gap between the second translucent member and the first translucent member.

さらに本発明は、前記光源と、
前記光源が搭載され、前記光源を駆動する電気配線を有する駆動部と、
前記光源から出射される光を反射する光反射手段とを含むことを特徴とする発光装置である。
Furthermore, the present invention provides the light source,
A drive unit mounted with the light source and having electrical wiring for driving the light source;
The light emitting device includes light reflecting means for reflecting light emitted from the light source.

本発明によれば、基体に形成される凹部には発光素子を収容することができ、発光素子から出射される光を光反射面によって反射することができる。これによって発光素子から出射される光を、凹部の開放部分から効率的に発光することができる。また凹部の底面部分に臨む張出面を有する張出面部が設けられるので、発光素子を備える光源を製造する場合に、透光性を有する第1の透光性部材の液状の前駆体を凹部に注入すると、前駆体の開放部分に臨む開放面が、張出面に接する。この張出面に接する範囲内に、充填する前駆体の量を調節することによって、前駆体が張出面を越えて、さらに開放面が上昇して、凹部の内面部に沿って濡れ広がることを阻止することができる。充填する前駆体の量は一定量にすることが好ましいが、多少誤差があった場合であっても、張出面によって不所望に濡れ広がることを阻止することができる。したがって内面部の内側に形成される第1の透光性部材の表面形状を所望の形状に容易に形成することができる。これによって発光素子から出射される光が第1の透光性部材の開放面から放射される場合、放射角度を所望の角度にすることができ、第1の透光性部材の開放面から放射される光の光束が揃い、光の放射強度を一定にすることができる。   According to the present invention, the light emitting element can be accommodated in the recess formed in the base, and the light emitted from the light emitting element can be reflected by the light reflecting surface. Thereby, the light emitted from the light emitting element can be efficiently emitted from the open portion of the recess. In addition, since an overhanging surface portion having an overhanging surface facing the bottom surface portion of the recess is provided, when manufacturing a light source including a light emitting element, the liquid precursor of the first translucent member having translucency is used as the recess. When injected, the open surface facing the open portion of the precursor contacts the overhanging surface. By adjusting the amount of precursor to be filled within the range of contact with the overhanging surface, the precursor is prevented from exceeding the overhanging surface and further the open surface rising and spreading along the inner surface of the recess. can do. The amount of the precursor to be filled is preferably a constant amount, but even if there is some error, it is possible to prevent undesirably spreading by the protruding surface. Therefore, the surface shape of the first translucent member formed inside the inner surface portion can be easily formed into a desired shape. Accordingly, when light emitted from the light emitting element is emitted from the open surface of the first light transmissive member, the radiation angle can be set to a desired angle, and the light is emitted from the open surface of the first light transmissive member. The luminous flux of the emitted light is aligned, and the light emission intensity can be made constant.

また本発明によれば、基体に形成される凹部には発光素子が収容することができる。凹部の底面部分に臨む張出面を有する張出面部が設けられるので、発光素子を備える光源を製造する場合に、透光性を有する第1の透光性部材の液状の前駆体を凹部に充填すると、前駆体の開放部分に臨む開放面が、張出面に接する。この張出面に接する範囲内に、充填する前駆体の量を調節することによって、前駆体が張出面を越えて、さらに開放面が上昇して、凹部の内面部に沿って濡れ広がることを阻止することができる。充填する前駆体の量は一定量にすることが好ましいが、多少誤差があった場合であっても、張出面によって不所望に濡れ広がることを阻止することができる。したがって内面部の内側に形成される第1の透光性部材の表面形状を所望の形状に容易に形成することができる。これによって発光素子から出射される光が第1の透光性部材の開放面から放射される場合、放射角度を所望の角度にすることができ、第1の透光性部材の開放面から放射される光の光束が揃い、光の放射強度を一定にすることができる。   According to the invention, the light emitting element can be accommodated in the recess formed in the base. Since a projecting surface portion having a projecting surface facing the bottom surface portion of the recess is provided, the liquid precursor of the first translucent member having translucency is filled into the recess when a light source including a light emitting element is manufactured. Then, the open surface that faces the open portion of the precursor contacts the overhanging surface. By adjusting the amount of precursor to be filled within the range of contact with the overhanging surface, the precursor is prevented from exceeding the overhanging surface and further the open surface rising and spreading along the inner surface of the recess. can do. The amount of the precursor to be filled is preferably a constant amount, but even if there is some error, it is possible to prevent undesirably spreading by the protruding surface. Therefore, the surface shape of the first translucent member formed inside the inner surface portion can be easily formed into a desired shape. Accordingly, when light emitted from the light emitting element is emitted from the open surface of the first light transmissive member, the radiation angle can be set to a desired angle, and the light is emitted from the open surface of the first light transmissive member. The luminous flux of the emitted light is aligned, and the light emission intensity can be made constant.

さらに本発明によれば、張出面部の張出面と底面部分の底面とは、略平行に配置されるので、凹部に充填される第1の透光性部材の前駆体の開放面を、張出面を含む仮想平面に沿った位置に配置することができる。これによって第1の透光性部材の開放面の位置を高精度に調節することができ、発光素子から出射される光の特性を高精度に制御することができる。   Furthermore, according to the present invention, the projecting surface of the projecting surface portion and the bottom surface of the bottom surface portion are disposed substantially parallel to each other. It can arrange | position in the position along the virtual plane containing an exit surface. Accordingly, the position of the open surface of the first translucent member can be adjusted with high accuracy, and the characteristics of the light emitted from the light emitting element can be controlled with high accuracy.

さらに本発明によれば、内面部分には張出面部を形成する凸部が形成されるので、張出面を備える発光素子収納用パッケージを実現することができる。   Furthermore, according to the present invention, since the convex portion forming the protruding surface portion is formed on the inner surface portion, it is possible to realize a light emitting element storage package including the protruding surface.

さらに本発明によれば、内面部分には張出面部を形成する溝部が形成されるので、内周面を含む仮想平面を平坦状に形成し、かつ張出面部を備える発光素子収納用パッケージを実現することができる。内面を含む仮想平面を平坦状にすることができるので、発光素子から出射される光を、不所望に遮る異物がないので、発光素子から出射される光を効率よく外方に出射することができる。   Further, according to the present invention, since the groove portion forming the protruding surface portion is formed on the inner surface portion, the light emitting element storage package including the protruding surface portion and the virtual plane including the inner peripheral surface is formed flat. Can be realized. Since the virtual plane including the inner surface can be made flat, there is no foreign matter that undesirably blocks the light emitted from the light emitting element, so that the light emitted from the light emitting element can be efficiently emitted outward. it can.

さらに本発明によれば、一方の基部には、少なくとも張出面部が形成される。したがって張出面部の形状が複雑な形状であっても、基部を分離して製造することによって、加工を容易にすることができる。これによって製造コストを低減することができる。   Further, according to the present invention, at least a protruding surface portion is formed on one base portion. Therefore, even if the shape of the overhanging surface portion is complicated, processing can be facilitated by separating and manufacturing the base portion. As a result, the manufacturing cost can be reduced.

さらに本発明によれば、前記凸部は、リング状部材であるので、内面になんら加工することなく、凸部を備える発光素子収納用パッケージを実現することができる。これによって内面を張出面部を設けるために複雑な加工をする必要がないので、製造コストを低減することができる。   Furthermore, according to this invention, since the said convex part is a ring-shaped member, it can implement | achieve the light emitting element accommodation package provided with a convex part, without processing an inner surface at all. Accordingly, it is not necessary to perform complicated processing to provide the overhanging surface portion on the inner surface, so that the manufacturing cost can be reduced.

さらに本発明によれば、第1の透光性部材は、透光性を有し、載置部に載置される発光素子の外周を覆って設けられるので、発光素子から出射される光は第1の透光性部材を介して外方へ出射される。第1の透光性部材は、張出面部の張出面に当接して設けられる。したがって光源を製造する場合、第1の透光性部材の液状の前駆体が、前駆体の開放部分に臨む開放面が、張出面に接するまで前駆体が充填されるので、第1の透光性部材の開放面の表面形状を所望の形状に容易に形成することができる。これによって発光素子から出射される光が第1の透光性部材の開放面から放射される場合、放射角度を所望の角度にすることができ、第1の透光性部材の開放面から放射される光の光束が揃い、光の放射強度を一定にすることができる。また光源毎の個体差が生じることを可及的に防止することができる。   Furthermore, according to the present invention, the first translucent member has translucency and is provided so as to cover the outer periphery of the light emitting element placed on the placing portion. The light is emitted outward through the first translucent member. The first translucent member is provided in contact with the projecting surface of the projecting surface portion. Therefore, when the light source is manufactured, the liquid precursor of the first translucent member is filled with the precursor until the open surface facing the open portion of the precursor is in contact with the protruding surface. The surface shape of the open surface of the sex member can be easily formed into a desired shape. Accordingly, when light emitted from the light emitting element is emitted from the open surface of the first light transmissive member, the radiation angle can be set to a desired angle, and the light is emitted from the open surface of the first light transmissive member. The luminous flux of the emitted light is aligned, and the light emission intensity can be made constant. Moreover, it is possible to prevent as much as possible individual differences for each light source.

さらに本発明によれば、第2の透光性部材は、透光性を有し、第1の透光性部材に対向して設けられるので、第1の透光性部材を介して出射される光を、外方に導光することができる。第2の透光性部材は、蛍光体が含有されるので、蛍光体によって第1の透光性部材から出射される光を長波長変換して、外方に出射することができ、これによって所望の波長を有する光を出射する光源を実現することができる。   Furthermore, according to the present invention, since the second light transmissive member has light transmissive properties and is provided to face the first light transmissive member, the second light transmissive member is emitted through the first light transmissive member. Light can be guided outward. Since the second translucent member contains a phosphor, the light emitted from the first translucent member by the phosphor can be converted to a long wavelength and emitted outward, thereby A light source that emits light having a desired wavelength can be realized.

さらに本発明によれば、第1の透光性部材は、透光性を有し、載置部に載置される発光素子の外周を覆って設けられるので、発光素子から出射される光は第1の透光性部材を介して外方へ出射される。第1の透光性部材は、張出面部の張出面に当接して設けられる。したがって光源を製造する場合、第1の透光性部材の前駆体が、前駆体の開放部分に臨む開放面が、張出面に接するまで前駆体が充填されるので、第1の透光性部材の開放面の表面形状を所望の形状に容易に形成することができる。これによって発光素子から出射される光が第1の透光性部材の開放面から放射される場合、放射角度を所望の角度にすることができ、第1の透光性部材の開放面から放射される光の光束が揃い、光の放射強度を一定にすることができる。また光源毎の個体差が生じることを可及的に防止することができる。   Furthermore, according to the present invention, the first translucent member has translucency and is provided so as to cover the outer periphery of the light emitting element placed on the placing portion. The light is emitted outward through the first translucent member. The first translucent member is provided in contact with the projecting surface of the projecting surface portion. Therefore, when the light source is manufactured, the precursor of the first translucent member is filled with the precursor until the open surface facing the open portion of the precursor is in contact with the projecting surface. The surface shape of the open surface can be easily formed into a desired shape. Accordingly, when light emitted from the light emitting element is emitted from the open surface of the first light transmissive member, the radiation angle can be set to a desired angle, and the light is emitted from the open surface of the first light transmissive member. The luminous flux of the emitted light is aligned, and the light emission intensity can be made constant. Moreover, it is possible to prevent as much as possible individual differences for each light source.

第2の透光性部材は、透光性を有し、第1の透光性部材に対向して設けられるので、第1の透光性部材を介して出射される光を、外方に導光することができる。第2の透光性部材は、蛍光体が含有されるので、蛍光体によって第1の透光性部材から出射される光を長波長変換して、外方に出射することができ、これによって所望の波長を有する光を出射する光源を実現することができる。また第2の透光性部材は、シート状に形成されるので、厚み方向両端面を平坦状にすることでき、厚み方向に透光する光を特性が不所望に変化することを防ぐことができる。第2の透光性部材は凸部に当接して設けられので、第2の透光性部材の位置を容易に固定することができる。   The second translucent member has translucency and is provided to face the first translucent member. Therefore, the light emitted through the first translucent member is directed outward. It can be guided. Since the second translucent member contains a phosphor, the light emitted from the first translucent member by the phosphor can be converted to a long wavelength and emitted outward, thereby A light source that emits light having a desired wavelength can be realized. Further, since the second translucent member is formed in a sheet shape, both end surfaces in the thickness direction can be flattened, and the light transmitted in the thickness direction can be prevented from changing undesirably. it can. Since the 2nd translucent member is provided in contact with a convex part, the position of the 2nd translucent member can be fixed easily.

さらに本発明によれば、載置部は、凹部の底面から離間した位置に設けられるので、発光素子から出射される光の内面部分への出射範囲を広くすることができる。したがって光反射面によって反射することができる光の光量を多くすることができ、発光装置が出射する光の光量を多くすることができる。   Furthermore, according to the present invention, since the mounting portion is provided at a position separated from the bottom surface of the recess, the emission range of the light emitted from the light emitting element to the inner surface portion can be widened. Therefore, the amount of light that can be reflected by the light reflecting surface can be increased, and the amount of light emitted from the light emitting device can be increased.

さらに本発明によれば、第2の透光性部材は、張出面の内縁部よりも外方まで延在しているので、発光素子から出射される光は、全て第2の透光性部材を介して外方に出射させることができ、第2の透光性部材を経由しないで外へ光が漏れることを防ぐことができる。これによって発光素子から出射される光を効率よく外方へ出射することができる
さらに本発明によれば、第2の透光性部材は、第1の透光性部材との間に空隙を有して設けられる。したがって第2の透光性部材より小さい屈折率を有する空気が存在する空隙から、空気より屈折率の大きい第2の透光性部材へ光が入射されるので、第2の透光性部材の入射面で全反射される光を少なくすることができる。
Further, according to the present invention, since the second translucent member extends outward from the inner edge portion of the projecting surface, all the light emitted from the light emitting element is the second translucent member. The light can be emitted outward through the second light transmitting member, and light can be prevented from leaking outside without passing through the second translucent member. Accordingly, the light emitted from the light emitting element can be efficiently emitted to the outside. Further, according to the present invention, the second light transmissive member has a gap between it and the first light transmissive member. Provided. Therefore, since light is incident on the second light-transmissive member having a refractive index larger than that of air from the gap where air having a refractive index smaller than that of the second light-transmissive member exists, the second light-transmissive member Light totally reflected on the incident surface can be reduced.

さらに本発明によれば、光源は駆動部によって駆動され、光源から出射される光は光反射手段によって反射される。したがって光源から出射される光を、発光装置として効率よく利用することができる。   Furthermore, according to the present invention, the light source is driven by the driving unit, and the light emitted from the light source is reflected by the light reflecting means. Therefore, the light emitted from the light source can be efficiently used as a light emitting device.

以下、図面を参照しながら本発明を実施するための形態を、複数の形態について説明する。各形態で先行する形態で説明している事項に対応している部分には同一の参照符を付し、重複する説明を略する場合がある。構成の一部のみを説明している場合、構成の他の部分は、先行して説明している形態と同様とする。実施の各形態で具体的に説明している部分の組合せばかりではなく、特に組合せに支障が生じなければ、実施の形態同士を部分的に組み合わせることも可能である。   Hereinafter, a plurality of embodiments for carrying out the present invention will be described with reference to the drawings. Portions corresponding to the matters described in the preceding forms in each embodiment are denoted by the same reference numerals, and overlapping description may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined if there is no particular problem with the combination.

図1は、本発明の実施の第1の形態の光源10を正面から見て示す断面図である。光源10は、発光素子11から出射される光(以下、単に「発光素子11からの光」ということがある)を、蛍光体12によって長波長変換して外方に出射する。光源10は、基体13、発光素子11、載置部14、反射部材15、第1の透光性部材16および第2の透光性部材17を含んで構成される。   FIG. 1 is a sectional view showing a light source 10 according to a first embodiment of the present invention as seen from the front. The light source 10 converts light emitted from the light emitting element 11 (hereinafter, simply referred to as “light from the light emitting element 11”) into a long wavelength by the phosphor 12 and emits the light outward. The light source 10 includes a base 13, a light emitting element 11, a mounting portion 14, a reflecting member 15, a first light transmissive member 16, and a second light transmissive member 17.

基体13は、発光素子11を載置する載置部14が設けられ、載置部14には発光素子11の電極が電気的に接続される導体層18が形成される。基体13は、平板状に形成され、その厚み方向一方である上方の面(以下、単に「上側主面13a」ということがある)の厚み方向に略直交する幅方向の中央部に上方に凸となる載置部14が形成される。載置部14の上方の端面14aには、導電性を有する導体層18が形成され、発光素子11が導体層18に電気的に接続されて設けられる。したがって発光素子11が載置される部分は、上側主面13aから離間した位置に設けられる。基体13は、アルミナセラミックス、窒化アルミニウム質焼結体、ムライト質焼結体およびガラスセラミックスなどのセラミックス、エポキシ樹脂などの樹脂、または金属などから成る。   The base 13 is provided with a mounting portion 14 for mounting the light emitting element 11, and a conductive layer 18 to which the electrode of the light emitting element 11 is electrically connected is formed on the mounting portion 14. The base 13 is formed in a flat plate shape, and protrudes upward at the center in the width direction substantially perpendicular to the thickness direction of the upper surface (hereinafter simply referred to as the “upper main surface 13a”). A mounting portion 14 is formed. A conductive layer 18 having conductivity is formed on the upper end surface 14 a of the mounting portion 14, and the light emitting element 11 is electrically connected to the conductive layer 18. Therefore, the portion on which the light emitting element 11 is placed is provided at a position separated from the upper main surface 13a. The base 13 is made of alumina ceramic, aluminum nitride sintered body, mullite sintered body, ceramic such as glass ceramic, resin such as epoxy resin, metal, or the like.

載置部14は、基体13の載置部14の周囲を、たとえば切削加工、機械研磨、およびブラスト研磨などの手段で除去することによって、または金型成型およびセラミックグリーンシートの積層法によって基体13と一体に形成することができる。または、載置部14は、たとえば基体13の上側主面13aに載置部14となる部材を接着剤などで接合してもよい。   The mounting portion 14 is formed by removing the periphery of the mounting portion 14 of the base body 13 by means such as cutting, mechanical polishing, and blast polishing, or by mold molding and ceramic green sheet lamination. And can be formed integrally. Or the mounting part 14 may join the member used as the mounting part 14 to the upper side main surface 13a of the base | substrate 13, for example with an adhesive agent.

発光素子11を導体層18に接続する方法としては、たとえばワイヤボンディングを介して接続する方法、または、発光素子11の下面で半田バンプなどの電気接続手段によって接続するフリップチップボンディング方式を用いた方法などが用いられる。   As a method of connecting the light emitting element 11 to the conductor layer 18, for example, a method of connecting via wire bonding, or a method using a flip chip bonding method in which the lower surface of the light emitting element 11 is connected by an electric connecting means such as a solder bump. Etc. are used.

導体層18は、基体13内部に形成された配線導体(図示せず)を介して光源10の外部に設けられる外部電気回路基板(図示せず)と電気的に接続される。導体層18は、たとえば、タングステン(W)、モリブデン(Mo)、銅(Cu)および銀(Ag)などの1種またはこれらを混合した金属粉末のメタライズ層によって実現される。配線導体は、たとえば鉄(Fe)−ニッケル(Ni)−コバルト(Co)合金などから成るリード端子を基体13に埋設し、リード端子の一端部を載置部14に露出させ、他端部を光源10の外方に露出させることによって、または、絶縁体から成る入出力端子を基体13に設けた貫通孔に嵌着接合させることによって、または、セラミックスから成る基体13の表面または内部に導体層18の形成と同様にして形成されたメタライズ層によって実現される。   The conductor layer 18 is electrically connected to an external electric circuit board (not shown) provided outside the light source 10 via a wiring conductor (not shown) formed inside the base 13. The conductor layer 18 is realized by, for example, one kind of tungsten (W), molybdenum (Mo), copper (Cu), silver (Ag), or a metal powder metallized layer obtained by mixing these. For the wiring conductor, for example, a lead terminal made of iron (Fe) -nickel (Ni) -cobalt (Co) alloy or the like is embedded in the base 13, one end of the lead terminal is exposed to the mounting portion 14, and the other end is By exposing the light source 10 to the outside, or by fitting and connecting an input / output terminal made of an insulator to a through hole provided in the base 13, or a conductor layer on the surface or inside of the base 13 made of ceramics This is realized by a metallized layer formed in the same manner as the formation of 18.

導体層18の露出する表面部分には、Niおよび金(Au)などの耐食性に優れる金属を1μm以上20μm以下程度の厚さで被着させておくのがよい。具体的には、電気接続用パターンの露出表面には、たとえば厚さ1μm以上10μm以下程度のNiメッキ層と、厚さ0.1μm以上3μm以下程度のAuメッキ層とが電解メッキ法または無電解メッキ法によって順次被着されているのがより好ましい。これによって導体層18の酸化腐食を有効に防止し得るともに、発光素子11と導体層18との接続を強固にすることができる。   A metal having excellent corrosion resistance such as Ni and gold (Au) is preferably deposited on the exposed surface portion of the conductor layer 18 with a thickness of about 1 μm to 20 μm. Specifically, on the exposed surface of the electrical connection pattern, for example, an Ni plating layer having a thickness of about 1 μm to 10 μm and an Au plating layer having a thickness of about 0.1 μm to 3 μm are electroplating or electroless. More preferably, the layers are sequentially deposited by a plating method. As a result, the oxidative corrosion of the conductor layer 18 can be effectively prevented, and the connection between the light emitting element 11 and the conductor layer 18 can be strengthened.

反射部材15は、略枠状に形成され、軸線方向一端部が基体13の上側主面13a部に接着固定される。これによって基体13の上側主面13aを底面とし、反射部材15の内面部分である内周面部分が底面部分を囲むように構成され、基体13と反射部材15とによって発光素子11が収容される凹部が形成される。この凹部の内方に発光素子11が配置される。反射部材15は、その内周面部分に光反射性を有する反射面15aが形成される。反射部材15は、半田および銀(Ag)ロウなどのロウ材またはエポキシ樹脂などの樹脂接着材などの接合材によって、載置部14を反射面15aで取り囲むように基体13の上側主面13aに接合される。または、部材を切削加工等することによって、基体13と一体に形成することもできる。   The reflecting member 15 is formed in a substantially frame shape, and one end portion in the axial direction is bonded and fixed to the upper main surface 13 a portion of the base 13. As a result, the upper main surface 13a of the base body 13 is used as the bottom surface, and the inner peripheral surface portion that is the inner surface portion of the reflection member 15 is configured to surround the bottom surface portion, and the light emitting element 11 is accommodated by the base body 13 and the reflection member 15. A recess is formed. The light emitting element 11 is disposed inside the recess. The reflecting member 15 is formed with a reflecting surface 15a having light reflectivity on an inner peripheral surface portion thereof. The reflecting member 15 is formed on the upper main surface 13a of the base 13 so that the mounting portion 14 is surrounded by the reflecting surface 15a with a bonding material such as solder and a brazing material such as silver (Ag) brazing or a resin adhesive such as an epoxy resin. Be joined. Alternatively, the member can be integrally formed with the base 13 by cutting or the like.

反射部材15は、基体13の上側主面13aの載置部14を除く残余の部位であれば、どの部位に設けられてもよいが、発光素子11の周囲に所望の面精度、たとえば、光源10の縦断面において、発光素子11を間に挟んで発光素子11の両側に設けられた反射面15aが対称になるように設けられることが好ましい。本実施の形態では、反射部材15の内周面15aは、軸線方向一端部から他端部に向かって拡径するようにテーパ状に形成され、この内周面15aが発光素子11が発する光を反射する反射面15aとなるように形成される。換言すると、反射面15aは、縦断面形状が、上方に向かうにともなって外方に広がった直線状となるように形成される。   The reflection member 15 may be provided in any portion as long as it is a remaining portion excluding the mounting portion 14 of the upper main surface 13a of the base 13, but a desired surface accuracy around the light emitting element 11, for example, a light source In 10 longitudinal sections, it is preferable that the reflective surfaces 15a provided on both sides of the light emitting element 11 with the light emitting element 11 in between are symmetrical. In the present embodiment, the inner peripheral surface 15a of the reflecting member 15 is formed in a tapered shape so as to increase in diameter from one end portion in the axial direction toward the other end portion, and the inner peripheral surface 15a emits light emitted from the light emitting element 11. It is formed so as to be a reflection surface 15a that reflects light. In other words, the reflecting surface 15a is formed so that the longitudinal cross-sectional shape is a straight line extending outward as it goes upward.

反射部材15は、金属、セラミックスおよび樹脂などから成り、切削加工および金型成形などによって形成される。反射面15aは、光を反射するものであれば特に限定されないが、より高い反射率とするために、反射面15aとなる内周面を研磨したり、金型を押し付けるなどによって平滑化、または、貫通孔の内周面に、たとえば、メッキおよび蒸着などによってAl、Ag、Au、白金(Pt)、チタン(Ti)、クロム(Cr)およびCuなどの高反射率の金属薄膜層を形成することによって実現される。   The reflecting member 15 is made of metal, ceramics, resin, and the like, and is formed by cutting, molding, or the like. The reflecting surface 15a is not particularly limited as long as it reflects light, but in order to obtain a higher reflectance, the inner peripheral surface serving as the reflecting surface 15a is smoothed by polishing or pressing a mold, or the like. On the inner peripheral surface of the through-hole, a highly reflective metal thin film layer such as Al, Ag, Au, platinum (Pt), titanium (Ti), chromium (Cr) and Cu is formed by plating and vapor deposition, for example. Is realized.

反射面15aの表面の算術平均粗さRaは、たとえば0.004μm以上4μm以下程度であるのが良く、これによって、反射面15aが発光素子11および蛍光体12の光を良好に反射することができる。算術平均粗さRaが4μmを超えると、発光素子11の光を均一に反射させるのが困難となり、発光装置23の内部で乱反射し易くなる。一方、算術平均粗さRaが0.004μm未満では、そのような面を安定かつ効率よく形成することが困難である。   The arithmetic average roughness Ra of the surface of the reflecting surface 15a is preferably about 0.004 μm or more and 4 μm or less, for example, so that the reflecting surface 15a can reflect light of the light emitting element 11 and the phosphor 12 well. it can. When the arithmetic average roughness Ra exceeds 4 μm, it becomes difficult to uniformly reflect the light of the light emitting element 11, and it becomes easy to diffusely reflect inside the light emitting device 23. On the other hand, when the arithmetic average roughness Ra is less than 0.004 μm, it is difficult to form such a surface stably and efficiently.

反射部材15には、内面部分に設けられ、基体13の厚み方向一端面部である凹部の底面部分に臨む張出面19を有する張出面部20が形成される。本実施の形態では、張出面部20は、反射面15aから内方に突出する凸部である突起部20が反射部材15の内面部分に全周にわたって設けられることによって実現される(以下、張出面部20を突起部20ともいう)。突起部20は、図1に示すように反射部材15と一体に設けられ、反射部材15を作製する際に切削加工および金型成形などを行なうことによって形成される。突起部20の上側主面13aに臨む張出面19は、上側主面13aと略平行となるように配置される。   The reflecting member 15 is provided with an overhanging surface portion 20 having an overhanging surface 19 that is provided on the inner surface portion and faces the bottom surface portion of the recess that is one end surface portion in the thickness direction of the base body 13. In the present embodiment, the projecting surface portion 20 is realized by providing the projecting portion 20, which is a convex portion projecting inward from the reflecting surface 15 a, on the inner surface portion of the reflecting member 15 over the entire circumference (hereinafter referred to as a tensioning surface). The exit surface 20 is also referred to as a protrusion 20). As shown in FIG. 1, the protruding portion 20 is provided integrally with the reflecting member 15, and is formed by performing cutting and mold forming when the reflecting member 15 is manufactured. The overhanging surface 19 facing the upper main surface 13a of the protrusion 20 is disposed so as to be substantially parallel to the upper main surface 13a.

突起部20の突出寸法L0は、好ましくは、0.1mm以上であって、突起部20における反射面15aの開口寸法L1の4分の1以下であるのがよい。この構成によって、軸上光度および輝度がより優れたものとなる。突起部20の突出寸法L0が0.1mm未満の場合は、反射部材15の内側に充填された第1の透光性部材16が突起部20よりも上側の反射面15aに這い上がって反射面15aの内面に必要以上に濡れ広がってしまい、軸上光度および輝度が均一な光として反射部材15から放射されにくくなり易く、突起部20の突出寸法l0が開口寸法L1の1/4を超えて大きくなると、発光素子11から発光する光が突起部20で遮断され、反射部材15から放射される光の軸上光度および輝度が低下し易くなる。また反射部材15には、突起部20より上側の内周面部分には階段状の段差部21が形成される。この段差部21には、後述する第2の透光性部材17が載置される。   The protrusion dimension L0 of the protrusion 20 is preferably 0.1 mm or more, and may be equal to or less than a quarter of the opening dimension L1 of the reflection surface 15a in the protrusion 20. With this configuration, the on-axis luminous intensity and luminance are more excellent. When the protrusion dimension L0 of the protrusion 20 is less than 0.1 mm, the first translucent member 16 filled inside the reflection member 15 crawls up to the reflection surface 15a above the protrusion 20 to reflect the reflection surface. The inner surface of 15a is more than necessary and spreads more than necessary, and is easily radiated from the reflecting member 15 as light having a uniform on-axis luminous intensity and luminance, and the protruding dimension 10 of the protrusion 20 exceeds 1/4 of the opening dimension L1. When it becomes larger, the light emitted from the light emitting element 11 is blocked by the protrusion 20, and the on-axis luminous intensity and luminance of the light emitted from the reflecting member 15 are likely to decrease. Further, the reflecting member 15 is formed with a stepped step portion 21 on the inner peripheral surface portion above the protruding portion 20. A second translucent member 17 described later is placed on the stepped portion 21.

第1の透光性部材16は、透光性を有し、載置部14に載置される発光素子11の外周を覆って設けられ、突起部20の張出面19に当接して設けられる。第1の透光性部材16は、エポキシ樹脂およびシリコーン樹脂などの透明樹脂、またはゾルゲルガラスなどから成る透明部材である。第1の透光性部材16は、図1に示すように、未硬化の液状のものをディスペンサーなどの注入機を用いて発光素子11の周囲に注いだ後に硬化させることによって形成される。第1の透光性部材16は、発光素子11を保護する機能も有する。第1の透光性部材16は、張出面19が上側主面13aに臨む空間にその前駆体である液状体が充填され、その量は、張出面19に当接する量に調節される。第1透光性部材16の前駆体は、第1の透光性部材16が液状の状態を示し、たとえば第1の透光性部材16がゾルゲルガラスから成る場合は、液状のときが前駆体であり、硬化性を有する樹脂から成る場合は、硬化する前の未硬化ときが前駆体である。したがって第1の透光性部材16の上方に開放する開放面16aと、張出面19とが略平行となるように構成される。なお、張出面19は、上側主面13aと平行になるように配置されるのであるが、反射面15aから内方の突起部20の先端に向かうに伴って上方に傾斜する傾斜面とされてもよい。これにより、第1の透光性部材16の充填量の誤差をより広く許容できるものとすることができる。傾斜角度は、上側主面13aに対して60°以下がよい。   The first translucent member 16 has translucency, is provided so as to cover the outer periphery of the light emitting element 11 mounted on the mounting portion 14, and is provided in contact with the protruding surface 19 of the protruding portion 20. . The first translucent member 16 is a transparent member made of transparent resin such as epoxy resin and silicone resin, or sol-gel glass. As shown in FIG. 1, the first translucent member 16 is formed by pouring an uncured liquid material around the light emitting element 11 using an injection machine such as a dispenser and then curing it. The first light transmissive member 16 also has a function of protecting the light emitting element 11. The first translucent member 16 is filled with a liquid material as a precursor in a space where the projecting surface 19 faces the upper main surface 13 a, and the amount thereof is adjusted to an amount in contact with the projecting surface 19. The precursor of the first translucent member 16 indicates that the first translucent member 16 is in a liquid state. For example, when the first translucent member 16 is made of sol-gel glass, the precursor is in the liquid state. In the case of being made of a curable resin, the precursor is the uncured state before curing. Therefore, the open surface 16a opened above the first translucent member 16 and the projecting surface 19 are configured to be substantially parallel. The overhanging surface 19 is arranged so as to be parallel to the upper main surface 13a, but is an inclined surface that is inclined upward as it goes from the reflecting surface 15a to the tip of the inward projection 20. Also good. Thereby, the error of the filling amount of the 1st translucent member 16 can be accept | permitted more widely. The inclination angle is preferably 60 ° or less with respect to the upper main surface 13a.

第2の透光性部材17は、透光性を有し、第1の透光性部材16に対向して設けられ、蛍光体12を含有する。第2の透光性部材17は、エポキシ樹脂およびシリコーン樹脂などの透明樹脂に発光素子11からの光によって励起されて長波長の蛍光に変換する蛍光体12を含有させたものである。第2の透光性部材17は、たとえば、未硬化の第2の透光性部材17を第1の透光性部材16の開放面16aを覆うように注入して硬化させてもよいが、好ましくは、予めシート状に作製したものを所定の形状に切り抜くことで形成される。また、第2の透光性部材17は、張出面19の内縁部である突起部20の先端部分よりも外方まで延在しているのがよい。換言すると、第2の透光性部材17は、突起部20の上側に載置して固定することによって反射部材15の内面に設置されるのがよい。具体的には、第2の透光性部材17は、シート状のものを所定形状に切り抜いたものが段差部21に嵌め込まれて載置され、反射部材15の反射面15a上の所定の位置に平坦に載置させられる。これによって第2の透光性部材17は、第1の透光性部材16との間に空隙を有して設けられる。換言すると、第2透光性部材17は、第1の透光性部材16に厚み方向に間隔をあけて設けられる。   The second translucent member 17 has translucency, is provided to face the first translucent member 16, and contains the phosphor 12. The 2nd translucent member 17 contains the fluorescent substance 12 which is excited by the light from the light emitting element 11, and converts into long wavelength fluorescence to transparent resin, such as an epoxy resin and a silicone resin. For example, the second translucent member 17 may be cured by injecting the uncured second translucent member 17 so as to cover the open surface 16a of the first translucent member 16, Preferably, it is formed by cutting a sheet that has been prepared in advance into a predetermined shape. Further, the second translucent member 17 is preferably extended outward from the tip end portion of the protruding portion 20 which is the inner edge portion of the projecting surface 19. In other words, the second translucent member 17 is preferably installed on the inner surface of the reflecting member 15 by being placed on and fixed to the upper side of the protruding portion 20. Specifically, the second translucent member 17 is a sheet-shaped member cut out into a predetermined shape and placed in the stepped portion 21 to be placed at a predetermined position on the reflecting surface 15 a of the reflecting member 15. To be placed flat. Accordingly, the second light transmissive member 17 is provided with a gap between the second light transmissive member 16 and the first light transmissive member 16. In other words, the second translucent member 17 is provided on the first translucent member 16 with an interval in the thickness direction.

第2の透光性部材17は一定厚みに形成されるとともに、蛍光体12が均一に分散されていることが重要である。この構成によって、発光素子11からの光を蛍光体12によって長波長側に確実に波長変換し、所望の波長スペクトルを有する光とすることができる。第2の透光性部材17を取り囲むように設置された反射部材15は、第2の透光性部材17からの光を集光し、所望の放射角度を有する放射光にすることができる。   It is important that the second translucent member 17 is formed with a constant thickness and that the phosphors 12 are uniformly dispersed. With this configuration, the light from the light emitting element 11 can be reliably wavelength-converted to the long wavelength side by the phosphor 12 to obtain light having a desired wavelength spectrum. The reflection member 15 installed so as to surround the second light transmissive member 17 can collect the light from the second light transmissive member 17 and make it a radiated light having a desired radiation angle.

図2は、光源10を備える発光装置23を示す平面図である。図3は、発光装置23を正面から見て示す断面図である。発光装置23は、光源10と、光源10が搭載され、光源10を駆動する電気配線を有する発光装置駆動回路基板22と、光源10からの出射される光を反射する反射板24とを含んで構成される。   FIG. 2 is a plan view showing the light emitting device 23 including the light source 10. FIG. 3 is a cross-sectional view showing the light emitting device 23 as viewed from the front. The light emitting device 23 includes a light source 10, a light emitting device driving circuit board 22 on which the light source 10 is mounted and having electric wiring for driving the light source 10, and a reflecting plate 24 that reflects light emitted from the light source 10. Composed.

発光装置23は、複数の光源10が設けられ、複数の光源10を発光させることによって、所定の光量を発光させることができる。発光装置23は、複数の光源10が駆動部である発光装置駆動回路基板22に複数列に配置され、発光装置23の周囲に所要の形状に光学設計された光反射手段である反射板24が設置されて構成される。複数の光源10は、一列に配置された複数個の光源10の間に、隣り合う列の発光装置23が配置された配置、いわゆる千鳥状に配置される。   The light emitting device 23 is provided with a plurality of light sources 10 and can emit a predetermined amount of light by causing the plurality of light sources 10 to emit light. The light-emitting device 23 includes a plurality of light sources 10 arranged in a plurality of rows on a light-emitting device driving circuit board 22 that is a drive unit, and a reflector 24 that is a light reflecting means optically designed in a required shape around the light-emitting device 23. Installed and configured. The plurality of light sources 10 are arranged in a so-called zigzag arrangement in which adjacent rows of light emitting devices 23 are arranged between the plurality of light sources 10 arranged in a row.

このような発光装置23は、たとえば、室内および室外で用いられる、一般照明用器具、シャンデリア用照明器具、住宅用照明器具、オフィス用照明器具、店装、展示用照明器具、街路灯用照明器具、誘導灯器具、信号装置、舞台およびスタジオ用の照明器具、広告灯、照明用ポール、水中照明用ライト、ストロボ用ライト、スポットライト、電柱などに埋め込む防犯用照明、非常用照明器具、懐中電灯、電光掲示板、調光器、自動点滅器、ディスプレイなどのバックライト、動画装置、装飾品、照光式スイッチ、光センサ、医療用ライトならびに車載ライトに好適に用いられる。   Such a light emitting device 23 is, for example, a general lighting fixture, a chandelier lighting fixture, a residential lighting fixture, an office lighting fixture, a store fixture, an exhibition lighting fixture, or a street lamp lighting fixture used indoors and outdoors. , Guide lights, signal devices, stage and studio lighting, advertising lights, lighting poles, underwater lighting, strobe lights, spotlights, security lights embedded in power poles, emergency lighting, flashlights It is suitably used for backlights for electronic bulletin boards, dimmers, automatic flashers, displays, moving picture devices, ornaments, illuminated switches, optical sensors, medical lights and in-vehicle lights.

以上説明したように、本実施の形態の光源10および発光装置23によれば、基体13および反射部材15に形成される凹部には発光素子11を収容することができ、発光素子11から出射される光を反射面15aによって反射することができる。これによって発光素子11から出射される光を、凹部の開放部分から効率的に発光することができる。また基体13の上側主面13aに臨む張出面19を有する突起部20が設けられるので、発光素子11を備える光源10を製造する場合に、透光性を有する第1の透光性部材16の液状の前駆体を凹部に注入すると、前駆体の開放部分に臨む開放面16aが、張出面19に接する。この張出面19に接する範囲内に、充填する前駆体の量を調節することによって、前駆体が張出面19を越えて、さらに開放面16aが上昇して、凹部の内周面部に沿って濡れ広がることを阻止することができる。充填する前駆体の量は一定量にすることが好ましいが、多少誤差があった場合であっても、張出面19によって不所望に濡れ広がることを阻止することができる。したがって内周面部の内側に形成される第1の透光性部材16の表面形状を所望の形状に容易に形成することができる。これによって発光素子11から出射される光が第1の透光性部材16の開放面16aから放射される場合、放射角度を所望の角度にすることができ、第1の透光性部材16の開放面16aから放射される光の光束が揃い、光の放射強度を一定にすることができる。   As described above, according to the light source 10 and the light emitting device 23 of the present embodiment, the light emitting element 11 can be accommodated in the recesses formed in the base body 13 and the reflecting member 15 and emitted from the light emitting element 11. Can be reflected by the reflecting surface 15a. Thereby, the light emitted from the light emitting element 11 can be efficiently emitted from the open portion of the recess. Moreover, since the projection part 20 which has the overhang | projection surface 19 which faces the upper side main surface 13a of the base | substrate 13 is provided, when manufacturing the light source 10 provided with the light emitting element 11, of the 1st translucent member 16 which has translucency. When the liquid precursor is injected into the recess, the open surface 16 a facing the open portion of the precursor comes into contact with the overhanging surface 19. By adjusting the amount of the precursor to be filled within the range in contact with the overhanging surface 19, the precursor passes over the overhanging surface 19, and the open surface 16a further rises to wet along the inner peripheral surface portion of the recess. It can be prevented from spreading. The amount of the precursor to be filled is preferably a constant amount, but even if there is a slight error, the protruding surface 19 can prevent undesirably spreading. Therefore, the surface shape of the first translucent member 16 formed inside the inner peripheral surface portion can be easily formed into a desired shape. Accordingly, when light emitted from the light emitting element 11 is emitted from the open surface 16a of the first light transmissive member 16, the radiation angle can be set to a desired angle, and the first light transmissive member 16 The light beams emitted from the open surface 16a are aligned, and the light emission intensity can be made constant.

また第1の透光性部材16の前駆体は、突起部20を目印にして反射部材15の内側に注入されることができ、ディスペンサーなどを用いて前駆体を注入する際の作業効率を改善できるとともに、前駆体をほぼ正確に所定の量だけ注入することが可能となる。   Further, the precursor of the first translucent member 16 can be injected into the reflecting member 15 with the protrusion 20 as a mark, improving work efficiency when injecting the precursor using a dispenser or the like. In addition, a predetermined amount of the precursor can be injected almost accurately.

また、シート状とされた第2の透光性部材17に蛍光体12を含有することから、発光素子11から発光される光は第2の透光性部材17を透過するときに蛍光体12によって波長変換されることとなり、発光素子11からの光は第1の透光性部材16によって光路長が一定であるので、発光素子11から発光される光の波長変換効率を一定にすることができる。   Further, since the phosphor 12 is contained in the sheet-like second light transmissive member 17, the light emitted from the light emitting element 11 is transmitted through the second light transmissive member 17. Therefore, the wavelength conversion efficiency of the light emitted from the light emitting element 11 can be made constant since the light path length of the light from the light emitting element 11 is constant by the first translucent member 16. it can.

以上の結果、放射強度、軸上光度、輝度および演色性などが各光源10で一定となり、色むらおよび強度むらが生ずるのを有効に防止することができ、放射強度、軸上光度、輝度および演色性などの光特性に優れた光源10を実現することができる。   As a result, the radiant intensity, the axial luminous intensity, the luminance, the color rendering properties, and the like are constant in each light source 10, and it is possible to effectively prevent the occurrence of uneven color and uneven intensity. The light source 10 having excellent light characteristics such as color rendering can be realized.

また基体13の上側主面13aの中央部に上方に凸となる載置部14が形成されているので、発光素子11から下方に発光する光も反射部材15によって発光装置23の外方へ反射させることができる。これによって載置部14などで多重反射して光が吸収されるのを防止し、発光素子11から発せられる光の多くを光源10からの放射光に利用することができる。その結果、発光素子11の発光特性を最大限に引き出すことができ、軸上光度、輝度および演色性などの光特性に優れた光源10を実現することができる。また基体13の上側主面13aから突出する載置部14によって、発光素子11を載置部14に実装するのが容易となり、発光素子11を所望の位置に正確かつ容易に載置することができるという作用効果を奏する。   In addition, since the mounting portion 14 that protrudes upward is formed at the central portion of the upper main surface 13a of the base body 13, the light emitted downward from the light emitting element 11 is also reflected outward of the light emitting device 23 by the reflecting member 15. Can be made. As a result, it is possible to prevent light from being absorbed by multiple reflection at the mounting portion 14 and the like, and much of the light emitted from the light emitting element 11 can be used as the emitted light from the light source 10. As a result, the light emission characteristics of the light emitting element 11 can be maximized, and the light source 10 having excellent light characteristics such as on-axis luminous intensity, luminance, and color rendering can be realized. Further, the mounting portion 14 protruding from the upper main surface 13a of the base body 13 makes it easy to mount the light emitting element 11 on the mounting portion 14, and the light emitting element 11 can be mounted accurately and easily at a desired position. There is an effect of being able to.

さらに本実施の形態では、張出面19と上側主面13aとは、略平行に配置されるので、充填される第1の透光性部材16の前駆体の開放面16aを、張出面19を含む仮想平面に沿った位置に配置することができる。これによって第1の透光性部材16の開放面16aの位置を高精度に調節することができ、発光素子11から出射される光の特性を高精度に制御することができる。   Further, in the present embodiment, since the overhanging surface 19 and the upper main surface 13a are arranged substantially in parallel, the open surface 16a of the precursor of the first translucent member 16 to be filled is replaced with the overhanging surface 19. It can arrange | position in the position along the containing virtual plane. Thereby, the position of the open surface 16a of the first translucent member 16 can be adjusted with high accuracy, and the characteristics of the light emitted from the light emitting element 11 can be controlled with high accuracy.

また第2の透光性部材17は、シート状に形成されるので、厚み方向両端面を平坦状にすることでき、厚み方向に透光する光を特性が不所望に変化することを防ぐことができる。また、シート状の第2の透光性部材17は突起部20上に係止されるようにして設置されることで、反射部材15の所定の位置に正確かつ容易に第2の透光性部材17を設置することができる。   Moreover, since the 2nd translucent member 17 is formed in a sheet form, both end surfaces in the thickness direction can be flattened, and the characteristics of the light transmitted in the thickness direction can be prevented from changing undesirably. Can do. Further, the sheet-like second light-transmissive member 17 is installed so as to be locked onto the protruding portion 20, so that the second light-transmissive member can be accurately and easily placed at a predetermined position of the reflecting member 15. The member 17 can be installed.

また発光素子11を、フリップチップボンディング方式によって導体層18に接続することによって、導体層18を発光素子11の直下に設けることができるので、発光素子11の周辺の基体13の上面に配線導体を設けるためのスペースを設ける必要がなくなる。したがって発光素子11からの光が配線導体で吸収されて軸上光度が低下するのを抑制することができる。   Further, by connecting the light emitting element 11 to the conductor layer 18 by a flip chip bonding method, the conductor layer 18 can be provided immediately below the light emitting element 11, so that a wiring conductor is provided on the upper surface of the base 13 around the light emitting element 11. It is not necessary to provide a space for providing. Therefore, it can suppress that the light from the light emitting element 11 is absorbed by the wiring conductor, and an axial luminous intensity falls.

反射部材15は、光源10の縦断面において、発光素子11を間に挟んで発光素子11の両側に設けられた反射面15aが対称となるように設けるので、発光素子11からの光を第2の透光性部材17に含まれる蛍光体12で波長変換して外部へ直接放射させるだけでなく、発光素子11から横方向などに発せられた光および蛍光体12から下方に発せられた光を反射面15aで均一にむらなく反射させることができる。これによって光源10からの光の軸上光度および輝度さらには演色性などを効果的に向上させることができる。特に、反射部材15が載置部14に近接しているほどこの効果が顕著に現れる。したがって載置部14の周囲を反射部材15で取り囲むことによって、より多くの光を反射させることができ、より高い軸上光度を得ることが可能となる。   Since the reflecting member 15 is provided so that the reflecting surfaces 15a provided on both sides of the light emitting element 11 with the light emitting element 11 sandwiched in the longitudinal section of the light source 10, the light from the light emitting element 11 is secondly transmitted. The phosphor 12 included in the translucent member 17 not only converts the wavelength and directly emits the light to the outside, but also emits light emitted from the light emitting element 11 in the lateral direction and the light emitted downward from the phosphor 12. The reflection surface 15a can uniformly reflect the light. As a result, the on-axis luminous intensity and brightness of the light from the light source 10 and color rendering can be effectively improved. In particular, this effect becomes more prominent as the reflecting member 15 is closer to the mounting portion 14. Therefore, by surrounding the mounting portion 14 with the reflecting member 15, more light can be reflected, and a higher on-axis luminous intensity can be obtained.

さらに本実施の形態では、第2の透光性部材17は、張出面19の内縁部である突起部20の先端部よりも外方まで延在しているので、発光素子11から出射される光は、全て第2の透光性部材17を介して外方に出射させることができ、第2の透光性部材17を経由しないで外へ光が漏れることを防ぐことができる。これによって発光素子11から出射される光を効率よく外方へ出射することができる
さらに本実施の形態では、第2の透光性部材17は、第1の透光性部材16との間に空隙を有して設けられる。したがって第2の透光性部材17より小さい屈折率を有する空気が存在する空隙から、空気より屈折率の大きい第2の透光性部材17へ光が入射されるので、第2の透光性部材17の入射面で全反射される光を少なくすることができる。
Furthermore, in the present embodiment, the second translucent member 17 extends outward from the tip end of the projection 20 that is the inner edge of the overhanging surface 19, and thus is emitted from the light emitting element 11. All the light can be emitted outward through the second light transmissive member 17, and light can be prevented from leaking outside without passing through the second light transmissive member 17. Thereby, the light emitted from the light emitting element 11 can be efficiently emitted outward. Further, in the present embodiment, the second light transmissive member 17 is disposed between the first light transmissive member 16 and the second light transmissive member 17. It is provided with a gap. Accordingly, since light is incident on the second light transmissive member 17 having a refractive index larger than that of air from the gap in which air having a refractive index smaller than that of the second light transmissive member 17 is present, the second light transmissive property is obtained. The light totally reflected by the incident surface of the member 17 can be reduced.

さらに本実施の形態では、発光装置23は、光源10として用いたことによって、半導体から成る発光素子11の発する光を利用することができ、半導体から成る発光素子11によって、従来の放電を用いた発光装置よりも低消費電力であり、長寿命とすることが可能であり、さらに小型の発光装置23とすることができる。また、蛍光体12を含有する第2の透光性部材17の厚みを一定にできるので、発光素子11から発せられる光の中心波長の変動を抑制することができ、長期間にわたり安定した放射強度かつ放射角度で光を放射することができるとともに、照射面における色むらおよび照度分布の偏りが少ない発光装置23を得ることができる。   Further, in the present embodiment, the light emitting device 23 can use the light emitted from the light emitting element 11 made of semiconductor by being used as the light source 10, and the conventional discharge is used by the light emitting element 11 made of semiconductor. The power consumption is lower than that of the light-emitting device, the lifetime can be increased, and the light-emitting device 23 can be further downsized. In addition, since the thickness of the second translucent member 17 containing the phosphor 12 can be made constant, fluctuations in the center wavelength of the light emitted from the light emitting element 11 can be suppressed, and stable radiation intensity over a long period of time. In addition, it is possible to obtain the light-emitting device 23 that can emit light at a radiation angle and that has little color unevenness and uneven illuminance distribution on the irradiated surface.

また発光装置23は、光源10の周囲に任意の形状に光学設計した反射板24、光学レンズおよび光拡散板などを設置することによって、任意の配光分布の光を放射する発光装置23を得ることができる。   Further, the light emitting device 23 obtains a light emitting device 23 that emits light of an arbitrary light distribution by installing a reflector 24, an optical lens, a light diffusion plate, and the like that are optically designed in an arbitrary shape around the light source 10. be able to.

発光装置23に設けられる複数の光源10の配置形態は、光源10が格子状に配置される際には、光源10が直線上に配列されることによってグレアが強くなり、このような発光装置23が人の視覚に入ってくることによって、不快感を起こしやすくなるのに対し、千鳥状とすることによって、発光装置23がほぼ均等間隔で平面上に配置されるので、グレアが抑制され人間の目に対する不快感を低減することができる。さらに、光源10が直線上に配列される場合に比べ、隣り合う光源10間の距離が長くなることによって、隣接する光源10間の熱的な干渉が抑制され、光源10が実装された発光装置駆動回路基板22内における熱のこもりが抑制され、発光装置23の外部に効率よく熱が放散される。その結果、人の目に対しても不快感の少ない長期間にわたり光学特性の安定した長寿命の発光装置23を得ることができる。   The arrangement of the plurality of light sources 10 provided in the light emitting device 23 is such that when the light sources 10 are arranged in a grid, the light sources 10 are arranged in a straight line, so that the glare becomes strong. However, when the light emitting device 23 is arranged on the plane at almost equal intervals, the glare is suppressed and the human's vision is suppressed. Discomfort to the eyes can be reduced. Furthermore, compared with the case where the light sources 10 are arranged on a straight line, the distance between the adjacent light sources 10 is increased, so that thermal interference between the adjacent light sources 10 is suppressed, and the light emitting device on which the light sources 10 are mounted. Heat accumulation in the drive circuit board 22 is suppressed, and heat is efficiently dissipated outside the light emitting device 23. As a result, it is possible to obtain a long-life light-emitting device 23 having stable optical characteristics over a long period of time with less discomfort to human eyes.

図4は、張出面19が形成される部分の他の例を示す図である。図4では、理解を容易にするため、第1および第2の透光性部材16,17を仮想的に示す。張出面19は、上側主面13aに臨むように構成され、たとえば図4(a)に示すように、反射部材15に単に上側主面13aに臨むように構成してもよい。この場合、張出面19の上方側の内周面部分は、テーパ状に構成されるが、第2の透光性部材17の角部を当接させることによって、不所望に反射部材15に対して変位することを防ぐことができる。   FIG. 4 is a diagram illustrating another example of the portion where the overhanging surface 19 is formed. In FIG. 4, the first and second translucent members 16 and 17 are virtually shown for easy understanding. The overhanging surface 19 is configured to face the upper main surface 13a. For example, as shown in FIG. 4A, the protruding surface 19 may be configured to simply face the upper main surface 13a. In this case, the inner peripheral surface portion on the upper side of the overhanging surface 19 is formed in a tapered shape. However, by making the corner portion of the second translucent member 17 abut, it is undesirably applied to the reflecting member 15. To prevent displacement.

またたとえば図4(b)に示すように、内周面部分には張出面部20を形成する溝部25が形成されてもよい。このような溝部25を形成することによって、内周面15aを含む仮想平面を平坦状にすることができるので、発光素子11からの光を、不所望に遮る異物がなくなり、発光素子11から出射される光を効率よく外方に出射することができる。   Further, for example, as shown in FIG. 4B, a groove portion 25 that forms the protruding surface portion 20 may be formed on the inner peripheral surface portion. By forming such a groove portion 25, the virtual plane including the inner peripheral surface 15 a can be made flat, so that foreign matter that obstructs light from the light emitting element 11 is eliminated undesirably and emitted from the light emitting element 11. The emitted light can be efficiently emitted outward.

またたとえば図4(c)に示すように、張出面部20を形成する溝部25の上部に、第2の透光性部材17を載置するための段差部21が形成されてもよい。これによって図1と図4(b)とを併せた作用効果を有する構成を実現することができる。   For example, as shown in FIG. 4C, a stepped portion 21 for placing the second translucent member 17 may be formed on the upper portion of the groove portion 25 that forms the protruding surface portion 20. As a result, it is possible to realize a configuration having the function and effect of combining FIG. 1 and FIG.

次に、本発明の実施の第2の形態の光源10aに関して説明する。図5は、本実施の形態の光源10aを正面から見て示す断面図である。本実施の形態では、反射部材15が相互に接続および分離可能な一対の基部である一対の反射構成体30,31を含んで構成される。一方の反射構成体30は、少なくとも張出面部20が形成され、他方の反射構成体31には、少なくとも基体13に当接する当接部分31aが形成される。前述の第1の実施の形態の反射部材15を、張出面19を含む仮想平面で軸線方向に分断したように構成され、一方の反射構成体30は第2の透光性部材17が配置され、他方の反射構成体31は基体13に当接して設けられる。   Next, the light source 10a according to the second embodiment of the present invention will be described. FIG. 5 is a cross-sectional view showing the light source 10a of the present embodiment as viewed from the front. In the present embodiment, the reflecting member 15 includes a pair of reflecting structural bodies 30 and 31 that are a pair of base portions that can be connected and separated from each other. One reflection structure 30 is formed with at least the overhanging surface portion 20, and the other reflection structure 31 is formed with at least a contact portion 31 a that contacts the base 13. The reflecting member 15 of the first embodiment is configured so as to be divided in the axial direction along a virtual plane including the projecting surface 19, and the second light transmitting member 17 is disposed in one reflecting structure 30. The other reflecting component 31 is provided in contact with the base 13.

換言すると、反射部材15を突起部20を境に上下で別体として作製し、両者を接合することによって前述の反射部材15と同一の形状となる。一方の反射構成体30は、突起部20と反射部材15の上部とが一体となって構成され、他方の反射構成体31は、反射部材15の下部によって構成される。   In other words, the reflecting member 15 is manufactured separately from the upper and lower sides with the protruding portion 20 as a boundary, and the two are joined to form the same shape as the reflecting member 15 described above. One reflection component 30 is formed by integrating the protrusion 20 and the upper part of the reflection member 15, and the other reflection component 31 is formed by the lower part of the reflection member 15.

また図示しないが、一方の反射構成体が突起部20と反射部材15の下部とが一体となって構成され、他方の反射構成体は反射部材15の上部によって構成されてもよい。このように反射部材15を突起部20を境に上下で別体とすることによっても、突起部20の加工を容易なものとすることができ、反射部材15を量産に適した形状とさせることが可能となる。   Although not shown, one reflection structure may be formed by integrating the protrusion 20 and the lower part of the reflection member 15, and the other reflection structure may be formed by the upper part of the reflection member 15. Thus, by making the reflecting member 15 separately on the upper and lower sides with the projecting portion 20 as a boundary, the processing of the projecting portion 20 can be facilitated, and the reflecting member 15 is made into a shape suitable for mass production. Is possible.

また、図4(b)および図4(c)に示す溝部25によって張出面部20を構成する場合にも、張出面19の下側の溝部25内において反射部材15を二分し、一対の反射構成体30、31とすることによって、加工を容易なものとすることができる。   4B and 4C, when the overhanging surface portion 20 is constituted by the groove portion 25, the reflecting member 15 is divided into two in the groove portion 25 below the overhanging surface 19, and a pair of reflections are made. By using the structural bodies 30 and 31, processing can be facilitated.

また基体13と一方の反射構成体30とが一体に構成される場合であっても、基体13および一方の反射構成体30と、他方の反射構成体31とを分離可能に構成することによって、本実施の形態と同様の効果を達成することができる。   Further, even when the base 13 and the one reflection component 30 are configured integrally, by configuring the base 13 and the one reflection component 30 so as to be separable from each other, The same effect as this embodiment can be achieved.

次に、本発明の実施の第3の形態の光源10bに関して説明する。図6は、本実施の形態の光源10bを正面から見て示す断面図である。本実施の形態では、反射部材15は突起部20が形成されず、その内周面15aが平坦状に構成され、張出面部20は反射部材15の内周面部分の内方に設けられたリング状部材40によって実現される。   Next, the light source 10b according to the third embodiment of the present invention will be described. FIG. 6 is a cross-sectional view showing the light source 10b of the present embodiment as viewed from the front. In the present embodiment, the reflecting member 15 is not formed with the protruding portion 20, the inner peripheral surface 15 a is configured to be flat, and the protruding surface portion 20 is provided inward of the inner peripheral surface portion of the reflecting member 15. This is realized by the ring-shaped member 40.

反射部材15の内面に設けられた突起部20は、図6に示すように、反射部材15と別体となったリング状部材40を反射部材15の内面に嵌め込むことによって設けられる。このように反射部材15とは別に突起部20と成るリング状部材40を作製しておくと、反射部材15の形状が単純なものとなり、反射部材15を量産に適した形状とすることが可能となる。これによって内周面15aを張出面部20を設けるために複雑な加工をする必要がないので、製造コストを低減することができる。   As shown in FIG. 6, the protrusion 20 provided on the inner surface of the reflecting member 15 is provided by fitting a ring-shaped member 40, which is separate from the reflecting member 15, into the inner surface of the reflecting member 15. Thus, if the ring-shaped member 40 which becomes the projection part 20 is produced separately from the reflecting member 15, the shape of the reflecting member 15 becomes simple, and the reflecting member 15 can be made into a shape suitable for mass production. It becomes. As a result, it is not necessary to carry out complicated processing for providing the projecting surface portion 20 on the inner peripheral surface 15a, and therefore the manufacturing cost can be reduced.

またリング状部材40を斜面に配置する場合、リング状部材40の角部を面取り加工して、斜面にならいやすい形状にすることが好ましい。このような形状にすることによって、斜面であっても、所望の位置に好適に配置することができ、また配置した位置から不所望に変位することを防ぐことができる。   Moreover, when arrange | positioning the ring-shaped member 40 on a slope, it is preferable to chamfer the corner | angular part of the ring-shaped member 40, and to make it the shape which is easy to follow a slope. By adopting such a shape, even a slope can be suitably arranged at a desired position, and undesired displacement from the arranged position can be prevented.

図7は、本実施の形態の他の例の光源10bの一部を拡大して示す図である。反射部材15の内周面15aに、リング状部材40を配置するための段差部21が形成される。リング状部材40を傾斜面に直接取り付ける場合、反射面15aの傾斜角度およびリング状部材40の外形などの精度が高くないと、リング状部材40の取付精度が低下するが、本例のように段差部21を形成することによって、前記問題を解決することができる。また、第2の透光性部材17の側面も段差部21に当接するように段差部21を設けることにより、第2の透光性部材17を反射面15aに沿って下方へ移動させ、段差部21によって所定位置に収めるようにすることができ、精度よく容易に設置することができる。   FIG. 7 is an enlarged view showing a part of a light source 10b of another example of the present embodiment. A step 21 for arranging the ring-shaped member 40 is formed on the inner peripheral surface 15 a of the reflecting member 15. When the ring-shaped member 40 is directly attached to the inclined surface, the accuracy of the attachment of the ring-shaped member 40 is lowered unless the inclination angle of the reflecting surface 15a and the outer shape of the ring-shaped member 40 are high. By forming the step portion 21, the above problem can be solved. Further, by providing the step portion 21 so that the side surface of the second translucent member 17 also contacts the step portion 21, the second translucent member 17 is moved downward along the reflecting surface 15 a, and the step The unit 21 can be placed in a predetermined position, and can be easily and accurately installed.

次に本発明の他の形態の発光装置23aに関して説明する。図8は、他の形態の発光装置23aを示す平面図である。図9は、発光装置23aを正面から見て示す断面図である。発光装置駆動回路基板22は、厚み方向一方から見て円形状に形成される。円形状および多角形状の複数の光源10は、発光装置駆動回路基板22上に同心状に複数群配列される。光源10の配置数は、半径方向中央側より外周側の方が多くなるように設定される。これによって、光源10同士の間隔を適度に保ちながら光源10をより多く配置することができ、発光装置23aの照度をより向上させることができる。また光源10の発熱による発光装置駆動回路基板22の中央部における熱のこもりを抑制することができる。これによって発光装置駆動回路基板22内における温度分布を一様にすることができ、発光装置23aに設けられる外部電気回路基板およびヒートシンクに効率よく熱を伝達することができ、発光装置23aの温度上昇を抑制することができる。したがって発光装置23aは長期間にわたり安定して動作することができるとともに長寿命の発光装置23aを実現することができる。   Next, a light emitting device 23a according to another embodiment of the present invention will be described. FIG. 8 is a plan view showing a light emitting device 23a of another form. FIG. 9 is a cross-sectional view showing the light emitting device 23a as seen from the front. The light emitting device drive circuit board 22 is formed in a circular shape when viewed from one side in the thickness direction. A plurality of circular and polygonal light sources 10 are arranged in a plurality of groups concentrically on the light emitting device driving circuit board 22. The number of the light sources 10 is set so that the outer peripheral side is larger than the radial center side. As a result, more light sources 10 can be arranged while maintaining an appropriate interval between the light sources 10, and the illuminance of the light emitting device 23a can be further improved. Further, it is possible to suppress the accumulation of heat in the central portion of the light emitting device drive circuit board 22 due to the heat generated by the light source 10. As a result, the temperature distribution in the light emitting device driving circuit board 22 can be made uniform, heat can be efficiently transferred to the external electric circuit board and the heat sink provided in the light emitting device 23a, and the temperature rise of the light emitting device 23a. Can be suppressed. Therefore, the light-emitting device 23a can operate stably over a long period of time and can realize a long-life light-emitting device 23a.

なお、本発明は以上の実施の形態の例に限定されず、本発明の要旨を逸脱しない範囲内であれば種々の変更を行なうことは何等支障ない。   In addition, this invention is not limited to the example of the above embodiment, If it is in the range which does not deviate from the summary of this invention, it will not interfere at all.

たとえば、放射強度の向上のために基体13に発光素子11が複数個載置されても良い。また反射面15aの角度を任意に調整することも可能であり、これによって、補色域を設けることができ、さらに良好な演色性を得ることができる。   For example, a plurality of light emitting elements 11 may be mounted on the base 13 in order to improve the radiation intensity. Further, it is possible to arbitrarily adjust the angle of the reflecting surface 15a, whereby a complementary color gamut can be provided, and a better color rendering property can be obtained.

発光装置23は、複数個の光源10を所定の配置となるように構成されたものだけでなく、1個の光源10を所定の配置となるように設置したものでもよい。たとえば、1個の光源10を照明装置の中央部に配置したものでもよい。   The light emitting device 23 is not limited to a configuration in which a plurality of light sources 10 are arranged in a predetermined manner, but may be a device in which one light source 10 is arranged in a predetermined arrangement. For example, one light source 10 may be arranged at the center of the lighting device.

反射面15aは、たとえば、縦断面形状が、上方に向かうにともなって外方に広がった直線状の傾斜面、上方に向かうにともなって外方に広がった曲面状の傾斜面、または途中で傾斜角度の変化する直線状の傾斜面などの形状であってもよい。   The reflecting surface 15a is, for example, a linear inclined surface whose longitudinal cross-sectional shape spreads outward as it goes upward, a curved inclined surface that spreads outward as it goes upward, or inclined in the middle It may be a shape such as a linear inclined surface whose angle changes.

また第2の透光性部材17を斜面に配置する場合、第2の透光性部材17の角部を面取り加工して、斜面にならいやすい形状にすることが好ましい。このような形状にすることによって、斜面であっても、所望の位置に好適に配置することができ、また配置した位置から不所望に変位することを防ぐことができる。   Moreover, when arrange | positioning the 2nd translucent member 17 on a slope, it is preferable to chamfer the corner | angular part of the 2nd translucent member 17 and make it the shape which is easy to follow a slope. By adopting such a shape, even a slope can be suitably arranged at a desired position, and undesired displacement from the arranged position can be prevented.

また前述の各実施の形態では、第2の透光性部材17を含んで光源10が構成されているが、第2の透光性部材17を除く残余の構成によって、光源10および発光装置23を実現してもよい。この場合、第1の透光性部材16に蛍光体12が含有される。第1の透光性部材16は、張出面19によって上面が平坦状に構成されるので、第2の透光性部材17による作用効果を除く残余の作用効果を達成することができる。   Further, in each of the above-described embodiments, the light source 10 is configured including the second light transmissive member 17, but the light source 10 and the light emitting device 23 are configured by the remaining configuration excluding the second light transmissive member 17. May be realized. In this case, the phosphor 12 is contained in the first translucent member 16. Since the upper surface of the first translucent member 16 is configured to be flat by the projecting surface 19, the remaining operational effects other than the operational effects of the second translucent member 17 can be achieved.

また前述の各実施の形態では、反射部材15の内周面15aに反射面15aが形成されているが、反射面15aを形成せずに光源10および発光装置23を実現してもよい。これによって反射面15aによる作用効果を除く残余の構成による作用効果を達成することができる。   In each of the above-described embodiments, the reflection surface 15a is formed on the inner peripheral surface 15a of the reflection member 15. However, the light source 10 and the light emitting device 23 may be realized without forming the reflection surface 15a. As a result, the function and effect of the remaining configuration excluding the function and effect of the reflecting surface 15a can be achieved.

また前述の各実施の形態では、第2の透光性部材17にだけ蛍光体12が含有されているが、このような構成に限らず、第1の透光性部材16に蛍光体12を含有させて光源10を構成してもよい。   Further, in each of the above-described embodiments, the phosphor 12 is contained only in the second light transmissive member 17. However, the present invention is not limited to such a configuration, and the phosphor 12 is disposed on the first light transmissive member 16. The light source 10 may be configured by inclusion.

また光源10を構成する基体13および反射部材15を含んで、発光素子が収容される発光素子収納用パッケージが構成され、この発光素子収納用パッケージを用いて光源を製造することによって、第1の透光性部材16の形状に起因する個体差が生じることを可及的に防ぐことができる。   In addition, a light-emitting element storage package that includes the base body 13 and the reflecting member 15 constituting the light source 10 and that stores the light-emitting element is formed. By manufacturing a light source using the light-emitting element storage package, the first It can prevent as much as possible that the individual difference resulting from the shape of the translucent member 16 arises.

また反射部材15に形成される突起部20およびリング状部材40は、好ましくは透光性を有するように構成される。これによって発光素子11からの光を、突起部20およびリング状部材40によって不所望に遮ることを防ぐことができ、発光素子11からの光を効率的に用いる光源10を実現することができる。   Further, the protrusion 20 and the ring-shaped member 40 formed on the reflecting member 15 are preferably configured to have translucency. As a result, the light from the light emitting element 11 can be prevented from being undesirably blocked by the protrusions 20 and the ring-shaped member 40, and the light source 10 that efficiently uses the light from the light emitting element 11 can be realized.

本発明の実施の第1の形態の光源10を正面から見て示す断面図である。It is sectional drawing which shows the light source 10 of the 1st Embodiment of this invention seeing from the front. 光源10を備える発光装置23を示す平面図である。3 is a plan view showing a light emitting device 23 including a light source 10. FIG. 発光装置23を正面から見て示す断面図である。It is sectional drawing which shows the light-emitting device 23 seeing from the front. 張出面19が形成される部分の他の例を示す図である。It is a figure which shows the other example of the part in which the overhang | projection surface 19 is formed. 本実施の形態の光源10aを正面から見て示す断面図である。It is sectional drawing which shows the light source 10a of this Embodiment seeing from the front. 本実施の形態の光源10bを正面から見て示す断面図である。It is sectional drawing which shows the light source 10b of this Embodiment seeing from the front. 本実施の形態の他の例の光源10bの一部を拡大して示す図である。It is a figure which expands and shows a part of light source 10b of the other example of this Embodiment. 他の形態の発光装置23aを示す平面図である。It is a top view which shows the light-emitting device 23a of another form. 発光装置23aを正面から見て示す断面図である。It is sectional drawing which shows the light-emitting device 23a seeing from the front. 従来の技術の光源1を正面から見て示す断面図である。It is sectional drawing which shows the light source 1 of a prior art seeing from the front.

符号の説明Explanation of symbols

10,10a,10b 光源
11 発光素子
12 蛍光体
13 基体
14 載置部
15 反射部材
16 第1の透光性部材
17 第2の透光性部材
18 導体層
19 張出面
20 張出面部
21 段差部
23,23a 発光装置
DESCRIPTION OF SYMBOLS 10, 10a, 10b Light source 11 Light emitting element 12 Phosphor 13 Base 14 Placement part 15 Reflective member 16 1st translucent member 17 2nd translucent member 18 Conductive layer 19 Overhang | projection surface 20 Overhang | projection surface part 21 Step part 23, 23a Light emitting device

Claims (14)

発光素子が収納される発光素子収納用パッケージであって、
発光素子が収容される凹部が形成される基体と、
前記凹部の底面部分を囲む内面部分に形成され、光反射性を有する光反射面と、
前記内面部分に設けられ、前記凹部の底面部分に臨む張出面を有する張出面部とを含むことを特徴とする発光素子収納用パッケージ。
A light emitting element storage package in which a light emitting element is stored,
A base on which a recess for accommodating the light emitting element is formed;
A light reflecting surface formed on the inner surface portion surrounding the bottom portion of the recess, and having light reflectivity;
A light emitting element storage package, comprising: a projecting surface portion provided on the inner surface portion and having a projecting surface facing the bottom surface portion of the recess.
発光素子が収納される発光素子収納用パッケージであって、
発光素子が収容される凹部が形成される基体と、
前記凹部の底面部分を囲む内面部分に設けられ、前記凹部の底面部分に臨む張出面を有する張出面部とを含むことを特徴とする発光素子収納用パッケージ。
A light emitting element storage package in which a light emitting element is stored,
A base on which a recess for accommodating the light emitting element is formed;
A light emitting element storage package comprising: an overhanging surface portion provided on an inner surface portion surrounding the bottom surface portion of the recess and having an overhanging surface facing the bottom surface portion of the recess.
前記張出面部の張出面と前記底面部分の底面とは、略平行に配置されることを特徴とする請求項1または2に記載の発光素子収納用パッケージ。   3. The light emitting element storage package according to claim 1, wherein the projecting surface of the projecting surface portion and the bottom surface of the bottom surface portion are disposed substantially parallel to each other. 前記内面部分には前記張出面部を形成する凸部が形成されることを特徴とする請求項1〜3のいずれか1つに記載の発光素子収納用パッケージ。   The light emitting element storage package according to any one of claims 1 to 3, wherein a convex portion for forming the protruding surface portion is formed on the inner surface portion. 前記内面部分には前記張出面部を形成する溝部が形成されることを特徴とする請求項1〜3のいずれか1つに記載の発光素子収納用パッケージ。   The light emitting element storage package according to any one of claims 1 to 3, wherein a groove portion for forming the protruding surface portion is formed in the inner surface portion. 前記基体は、相互に接続および分離可能な一対の基部を含み、
一方の基部には、少なくとも前記張出面部が形成されることを特徴とする請求項1〜5のいずれか1つに記載の発光素子収納用パッケージ。
The base includes a pair of bases that can be connected and separated from each other;
The light emitting element storage package according to claim 1, wherein at least the projecting surface portion is formed on one base portion.
前記内面部分の内方に設けられたリング状部材をさらに含み、
前記凸部は、前記リング状部材であることを特徴とする請求項4に記載の発光素子収納用パッケージ。
A ring-shaped member provided inside the inner surface portion;
The light emitting element storage package according to claim 4, wherein the convex portion is the ring-shaped member.
請求項1〜7のいずれかに1つに記載の発光素子収納用パッケージと、
発光素子と、
前記凹部の底面部分に設けられ、前記発光素子が載置される載置部と、
透光性を有し、前記載置部に載置される前記発光素子の外周を覆って設けられる第1の透光性部材であって、前記張出面部の張出面に当接して設けられる第1の透光性部材とを含むことを特徴とする光源。
The light emitting element storage package according to any one of claims 1 to 7,
A light emitting element;
A mounting portion provided on a bottom surface portion of the concave portion, on which the light emitting element is mounted;
1st translucent member which has translucency and is provided covering the outer periphery of the said light emitting element mounted in the said mounting part, Comprising: It is provided in contact with the overhang | projection surface of the said overhang | projection surface part. A light source comprising: a first translucent member.
透光性を有し、前記第1の透光性部材に対向して設けられ、蛍光体を含有する第2の透光性部材をさらに含むことを特徴とする請求項8に記載の光源。   The light source according to claim 8, further comprising a second translucent member that has translucency, is provided to face the first translucent member, and contains a phosphor. 請求項3に記載の発光素子収納用パッケージと、
発光素子と、
前記凹部の底面部分に設けられ、前記発光素子が載置される載置部と、
透光性を有し、前記載置部に載置される前記発光素子の外周を覆って設けられる第1の透光性部材であって、前記張出面部の張出面に当接して設けられる第1の透光性部材と、
透光性を有し、蛍光体が含有されるシート状に形成され、前記第1の透光性部材に対向する位置に前記凸部に当接して設けられる第2の透光性部材とを含むことを特徴とする光源。
The light emitting element storage package according to claim 3,
A light emitting element;
A mounting portion provided on a bottom surface portion of the concave portion, on which the light emitting element is mounted;
1st translucent member which has translucency and is provided covering the outer periphery of the said light emitting element mounted in the said mounting part, Comprising: It is provided in contact with the overhang | projection surface of the said overhang | projection surface part. A first translucent member;
A second translucent member that has translucency and is formed in a sheet shape containing phosphor, and is provided in contact with the convex portion at a position facing the first translucent member. A light source characterized by including.
前記載置部は、前記凹部の底面から離間した位置に設けられることを特徴とする請求項8〜10のいずれか1つに記載の光源。   The light source according to claim 8, wherein the placement unit is provided at a position separated from a bottom surface of the recess. 前記第2の透光性部材は、前記張出面の内縁部よりも外方まで延在していることを特徴とする請求項9〜11にいずれか1つに記載の光源。   The light source according to any one of claims 9 to 11, wherein the second translucent member extends outward from an inner edge portion of the projecting surface. 前記第2の透光性部材は、前記第1の透光性部材との間に空隙を有して設けられることを特徴とする請求項12に記載の光源。   The light source according to claim 12, wherein the second light transmissive member is provided with a gap between the second light transmissive member and the first light transmissive member. 請求項8〜13のいずれかに1つに記載の光源と、
前記光源が搭載され、前記光源を駆動する電気配線を有する駆動部と、
前記光源から出射される光を反射する光反射手段とを含むことを特徴とする発光装置。
A light source according to any one of claims 8 to 13,
A drive unit mounted with the light source and having electrical wiring for driving the light source;
And a light reflecting means for reflecting light emitted from the light source.
JP2005190116A 2005-06-29 2005-06-29 Light emitting element storage package, light source, and light emitting device Expired - Fee Related JP4938255B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008186850A (en) * 2007-01-26 2008-08-14 Stanley Electric Co Ltd Light-emitting apparatus and color conversion filter
JP2008218485A (en) * 2007-02-28 2008-09-18 Toshiba Lighting & Technology Corp Light emitting device
JP2009010049A (en) * 2007-06-26 2009-01-15 Panasonic Electric Works Co Ltd Light-emitting device
JP2010010651A (en) * 2008-05-28 2010-01-14 Kyocera Corp Light emitting device, and illuminating apparatus
JP2013012536A (en) * 2011-06-28 2013-01-17 Koito Mfg Co Ltd Plane light-emitting module
JP2015173054A (en) * 2014-03-12 2015-10-01 株式会社モリタ東京製作所 Luminaire and medical treatment device
KR101904994B1 (en) 2017-02-21 2018-11-30 박기철 Crosswalk light device
KR102057978B1 (en) * 2013-02-04 2019-12-20 엘지이노텍 주식회사 Lighting device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07111343A (en) * 1993-10-13 1995-04-25 Matsushita Electron Corp Photoelectric device
JPH10305620A (en) * 1997-03-06 1998-11-17 Matsushita Electron Corp Light-emitting apparatus and recording apparatus using the same
JPH1174561A (en) * 1997-08-29 1999-03-16 Nichia Chem Ind Ltd Photoelectric device and its forming method
JP2001250986A (en) * 2000-03-03 2001-09-14 Rohm Co Ltd Dot matrix display device
JP2004111937A (en) * 2002-08-30 2004-04-08 Nichia Chem Ind Ltd Light-emitting device
JP2004281856A (en) * 2003-03-18 2004-10-07 Kyocera Corp Package of light emitting element and light emitting device
JP2005039194A (en) * 2003-06-26 2005-02-10 Kyocera Corp Package for housing light emitting element, light emitting device, and luminair
JP2005093896A (en) * 2003-09-19 2005-04-07 Stanley Electric Co Ltd Semiconductor light emitting device
JP2006013157A (en) * 2004-06-25 2006-01-12 Nichia Chem Ind Ltd Light emitting apparatus
JP2006324558A (en) * 2005-05-20 2006-11-30 Ngk Spark Plug Co Ltd Wiring substrate
JP2006332605A (en) * 2005-04-25 2006-12-07 Ngk Spark Plug Co Ltd Wiring board
JP2007005722A (en) * 2005-06-27 2007-01-11 Toshiba Corp Envelope for optical semiconductor element and optical semiconductor device using the same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07111343A (en) * 1993-10-13 1995-04-25 Matsushita Electron Corp Photoelectric device
JPH10305620A (en) * 1997-03-06 1998-11-17 Matsushita Electron Corp Light-emitting apparatus and recording apparatus using the same
JPH1174561A (en) * 1997-08-29 1999-03-16 Nichia Chem Ind Ltd Photoelectric device and its forming method
JP2001250986A (en) * 2000-03-03 2001-09-14 Rohm Co Ltd Dot matrix display device
JP2004111937A (en) * 2002-08-30 2004-04-08 Nichia Chem Ind Ltd Light-emitting device
JP2004281856A (en) * 2003-03-18 2004-10-07 Kyocera Corp Package of light emitting element and light emitting device
JP2005039194A (en) * 2003-06-26 2005-02-10 Kyocera Corp Package for housing light emitting element, light emitting device, and luminair
JP2005093896A (en) * 2003-09-19 2005-04-07 Stanley Electric Co Ltd Semiconductor light emitting device
JP2006013157A (en) * 2004-06-25 2006-01-12 Nichia Chem Ind Ltd Light emitting apparatus
JP2006332605A (en) * 2005-04-25 2006-12-07 Ngk Spark Plug Co Ltd Wiring board
JP2006324558A (en) * 2005-05-20 2006-11-30 Ngk Spark Plug Co Ltd Wiring substrate
JP2007005722A (en) * 2005-06-27 2007-01-11 Toshiba Corp Envelope for optical semiconductor element and optical semiconductor device using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008186850A (en) * 2007-01-26 2008-08-14 Stanley Electric Co Ltd Light-emitting apparatus and color conversion filter
JP2008218485A (en) * 2007-02-28 2008-09-18 Toshiba Lighting & Technology Corp Light emitting device
JP2009010049A (en) * 2007-06-26 2009-01-15 Panasonic Electric Works Co Ltd Light-emitting device
JP2010010651A (en) * 2008-05-28 2010-01-14 Kyocera Corp Light emitting device, and illuminating apparatus
JP2013012536A (en) * 2011-06-28 2013-01-17 Koito Mfg Co Ltd Plane light-emitting module
KR102057978B1 (en) * 2013-02-04 2019-12-20 엘지이노텍 주식회사 Lighting device
JP2015173054A (en) * 2014-03-12 2015-10-01 株式会社モリタ東京製作所 Luminaire and medical treatment device
KR101904994B1 (en) 2017-02-21 2018-11-30 박기철 Crosswalk light device

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