JP2007266583A - Light emitting device - Google Patents

Light emitting device Download PDF

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JP2007266583A
JP2007266583A JP2007033261A JP2007033261A JP2007266583A JP 2007266583 A JP2007266583 A JP 2007266583A JP 2007033261 A JP2007033261 A JP 2007033261A JP 2007033261 A JP2007033261 A JP 2007033261A JP 2007266583 A JP2007266583 A JP 2007266583A
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light
light emitting
emitting device
emitting element
modification
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Masamitsu Nishi
政実 西
Atsushi Yamamoto
篤 山本
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Nichia Chemical Industries Ltd
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Nichia Chemical Industries Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting device with a simple structure and high decorative properties. <P>SOLUTION: A light emitting device uses a light emitting source emitting light with different colors from different light emitting parts and a translucent resin having a conical reflecting surface reflecting the light emitted from the light emitting part and covering the light emitting source. There provided is the light emitting source in such a manner that more than one of the light emitting parts are located away from the conical central axis. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、発光装置に関する。また、特に異なる発光色の発光素子を有する発光装置にも関する。   The present invention relates to a light emitting device. The present invention also relates to a light-emitting device having light-emitting elements having different emission colors.

クリスマスツリーなどに使用される装飾用のイルミネーションランプとして、最近では、電球に代わって発光ダイオードが広く使用されるようになってきている。
発光ダイオードを利用したイルミネーションランプとして、例えば、特許文献１には、赤色、緑色及び青色の発光ダイオード２ｒ，２ｇ，２ｂからなる発光部と、１又は２以上の発光ダイオードを選択して順次発光させる制御部とを備えた発光器が開示されている。
また、特許文献２には、発光素子の側面に光を遮断する部材が存在しないようにして側面からの光を視認できるようにしたイルミネーションランプが開示されている。
さらに、特許文献２には、発光素子の周りに、異なる発光色の蛍光体を配して視認方向によって異なる発光色の光を出射するイルミネーションランプが開示されている。
特開２００４−２０７０４３号公報 特開２００４−１４０３２７号公報 In recent years, light-emitting diodes have been widely used in place of light bulbs as decorative illumination lamps used in Christmas trees and the like.
As an illumination lamp using a light-emitting diode, for example, in Patent Document 1, a light-emitting unit composed of red, green, and blue light-emitting diodes 2r, 2g, and 2b and one or more light-emitting diodes are selected and sequentially emitted. A light emitter including a controller is disclosed.
Patent Document 2 discloses an illumination lamp in which light from the side surface can be visually recognized without a light blocking member on the side surface of the light emitting element.
Further, Patent Document 2 discloses an illumination lamp in which phosphors having different emission colors are arranged around a light emitting element to emit light having different emission colors depending on the viewing direction.
JP 2004-207043 A JP 2004-140327 A

しかしながら、特許文献２に開示されたイルミネーションランプは、異なる色の光を広い範囲に放射することが可能であるが、きらめき感などが小さく装飾性が十分でないという問題があった。
また、特許文献１のイルミネーションランプは、制御部が必要になるなど構造が複雑であり、安価にできないという問題があった。 However, although the illumination lamp disclosed in Patent Document 2 can radiate light of different colors over a wide range, there is a problem that the glittering feeling is small and the decorativeness is not sufficient.
In addition, the illumination lamp of Patent Document 1 has a problem that the structure is complicated such that a control unit is required and the cost cannot be reduced.

そこで、本発明は、構造が簡単でかつ装飾性の高い発光装置を提供することを目的とする。   Therefore, an object of the present invention is to provide a light emitting device that has a simple structure and high decorativeness.

以上の目的を達成するために、本発明に係る発光装置は、異なる色の光を異なる発光部から出射する発光源と、前記発光部から出射される光を反射させる錐形状の反射面を有し、前記発光源を覆う透光性樹脂と、を備え、前記発光部のうちの１以上が前記錐形状の中心軸から離れて位置するように前記発光源を設けたことを特徴とする。   In order to achieve the above object, a light-emitting device according to the present invention has a light-emitting source that emits light of different colors from different light-emitting parts, and a cone-shaped reflective surface that reflects the light emitted from the light-emitting parts. And a light-transmitting resin that covers the light-emitting source, wherein the light-emitting source is provided such that one or more of the light-emitting portions are positioned away from the central axis of the cone shape.

本発明に係る発光装置において、前記発光源は、少なくとも１つの発光素子と、該発光素子の上部に設けられた発光色が異なる複数の蛍光体層により、前記各蛍光体層に対応してそれぞれ前記発光部が形成されるようにしてもよい。   In the light-emitting device according to the present invention, the light-emitting source includes at least one light-emitting element and a plurality of phosphor layers with different emission colors provided on the light-emitting element, corresponding to each phosphor layer. The light emitting unit may be formed.

本発明に係る発光装置において、前記発光源は、発光色の異なる複数の発光素子によって構成されていてもよい。   In the light-emitting device according to the present invention, the light-emitting source may include a plurality of light-emitting elements having different emission colors.

本発明に係る発光装置において、前記錐形状は多角錐であってもよいし、円錐であってもよい。   In the light emitting device according to the present invention, the cone shape may be a polygonal cone or a cone.

本発明に係る発光装置において前記錐形状が多角錐であるとき、前記発光部はそれぞれ、前記多角錐を構成する隣接する２つの面の境界部に対向するように配置されていてもよいし、前記多角錐を構成する各面に対向するように配置されていてもよい。   In the light emitting device according to the present invention, when the cone shape is a polygonal pyramid, each of the light emitting portions may be arranged to face a boundary portion between two adjacent surfaces constituting the polygonal pyramid, You may arrange | position so that each surface which comprises the said polygonal pyramid may be opposed.

前記透光性樹脂の外形は多角柱形状であってもよいし、円柱形状であってもよい。
また、前記透光性樹脂の外形の中心軸と前記錐形状の中心軸とは一致することが好ましい。 The outer shape of the translucent resin may be a polygonal column shape or a cylindrical shape.
Moreover, it is preferable that the central axis of the outer shape of the translucent resin coincides with the central axis of the cone shape.

本発明に係る発光装置において、全ての前記発光部が前記錐形状の中心軸から離れて位置していることが好ましい。   In the light emitting device according to the present invention, it is preferable that all of the light emitting units are located away from the cone-shaped central axis.

以上のように構成された本発明に係る発光装置は、少なくとも１つの発光部が錐形状の中心軸から離れて配置されているので、各発光部から出射された光が反射面によって異なる方向に反射される。
したがって、本発明によれば、構造が簡単でかつ装飾性の高い発光装置を提供することができる。 In the light-emitting device according to the present invention configured as described above, at least one light-emitting unit is arranged away from the central axis of the cone shape, so that the light emitted from each light-emitting unit is in a different direction depending on the reflection surface. Reflected.
Therefore, according to the present invention, a light emitting device having a simple structure and high decorativeness can be provided.

以下、図面を参照しながら本発明に係る実施形態の発光装置について説明する。
実施形態１．
図１Ａは、本発明に係る実施形態１の発光装置１００の構成を示す斜視図であり、図１Ｂは、その断面図である。
この実施形態１の発光装置は、発光素子１１ａ，１１ｃと、先端部に発光素子１１ａ，１１ｃが設けられるカップ１７ａを有し発光素子１１ａ，１１ｃの一方の電極が接続されるアウターリード電極１７と、発光素子１１ａ，１１ｃの他方の電極が接続されるアウターリード電極１８と、発光素子１１ａ，１１ｃをアウターリード電極１７，１８の先端部分とともに覆う透光性樹脂１３とによって構成されている。
ここで、特に、本実施形態１の発光装置は、透光性樹脂１３の先端部に円錐形状の反射面１５が設けられており、かつ発光素子１１ａ，１１ｃがカップ１７ａにおいて円錐形状の反射面１５の中心軸から離れた位置に設けられていることを特徴としている。
尚、本明細書において、単に中心軸というときは特に断らない限り、反射面１５の中心軸を示すものとする。
また、この実施形態１の発光装置では、より好ましい形態として中心軸の両側に、発光素子１１ａ，１１ｃを配置している。 Hereinafter, a light emitting device according to an embodiment of the present invention will be described with reference to the drawings.
Embodiment 1. FIG.
1A is a perspective view showing a configuration of a light emitting device 100 according to Embodiment 1 of the present invention, and FIG. 1B is a cross-sectional view thereof.
The light-emitting device of Embodiment 1 includes light-emitting elements 11a and 11c, and an outer lead electrode 17 having a cup 17a provided with the light-emitting elements 11a and 11c at the tip, to which one electrode of the light-emitting elements 11a and 11c is connected. The outer lead electrode 18 to which the other electrodes of the light emitting elements 11a and 11c are connected, and the translucent resin 13 that covers the light emitting elements 11a and 11c together with the tip portions of the outer lead electrodes 17 and 18 are configured.
Here, in particular, in the light emitting device of the first embodiment, a conical reflecting surface 15 is provided at the tip of the translucent resin 13, and the light emitting elements 11a and 11c are conical reflecting surfaces in the cup 17a. It is characterized in that it is provided at a position away from the 15 central axis.
In the present specification, the term “center axis” refers to the center axis of the reflecting surface 15 unless otherwise specified.
In the light emitting device of the first embodiment, the light emitting elements 11a and 11c are arranged on both sides of the central axis as a more preferable form.

以上のように構成された実施形態１の発光装置では、発光素子１１ａ，１１ｃが反射面１５の中心軸から離れて配置されているので、発光素子１１ａ，１１ｃから出射される光はそれぞれ反射面１５の片方に偏って入射され、それぞれ反射面における入射位置の面方向に対応する異なった方向に反射される。
特に、本実施形態１では、中心軸に対して対称に発光素子１１ａ，１１ｃを配置しているので、一方の発光素子１１ａから出射された光は、反射面１５の片側で反射されて出射され、一方の発光素子１１ｃから出射された光は、反射面１５の反対側で反射されて出射される。
したがって、本実施形態１の発光装置では、ある方向では発光素子１１ａの光が観測され、その反対の方向では発光素子１１ｃの光が観測され、また他の方向では発光素子１１ａの光と発光素子１１ｃの光の両方の光が観測される。
また、実施形態１の発光装置では、発光素子１１ａ，１１ｃから反射面１５までの距離や方向によって反射面１５に入射される光の強度が異なるので、視る方向や角度によって光の強度が異なって見える。
これらのことから、本実施形態１の発光装置によれば、イルミネーション用の光源として装飾性に優れた発光装置を提供できる。 In the light emitting device of the first embodiment configured as described above, since the light emitting elements 11a and 11c are arranged away from the central axis of the reflecting surface 15, the light emitted from the light emitting elements 11a and 11c is the reflecting surface, respectively. The light is incident on one of the light beams 15 and is reflected in different directions corresponding to the surface direction of the incident position on the reflecting surface.
In particular, in the first embodiment, since the light emitting elements 11a and 11c are arranged symmetrically with respect to the central axis, the light emitted from one light emitting element 11a is reflected by one side of the reflecting surface 15 and emitted. The light emitted from one light emitting element 11c is reflected and emitted from the opposite side of the reflecting surface 15.
Therefore, in the light emitting device of the first embodiment, the light of the light emitting element 11a is observed in a certain direction, the light of the light emitting element 11c is observed in the opposite direction, and the light of the light emitting element 11a and the light emitting element are observed in the other direction. Both lights of 11c are observed.
In the light emitting device of the first embodiment, the intensity of light incident on the reflecting surface 15 differs depending on the distance and direction from the light emitting elements 11a and 11c to the reflecting surface 15, and therefore the light intensity varies depending on the viewing direction and angle. Looks.
Therefore, according to the light emitting device of the first embodiment, it is possible to provide a light emitting device excellent in decorativeness as a light source for illumination.

以下、実施形態１の発光素子の各構成要素について説明する。
（発光素子）
発光素子は、例えば、ＧａＡｌＮ、ＺｎＯ、ＺｎＳ、ＺｎＳｅ、ＳｉＣ、ＧａＰ、ＧａＡｌＡｓ、ＡｌＮ、ＩｎＮ、ＡｌＩｎＧａＰ、ＩｎＧａＮ、ＧａＮ、ＡｌＩｎＧａＮ等の半導体を発光層とする発光素子が用いられる。 Hereinafter, each component of the light emitting element of Embodiment 1 is demonstrated.
(Light emitting element)
As the light emitting element, for example, a light emitting element using a semiconductor such as GaAlN, ZnO, ZnS, ZnSe, SiC, GaP, GaAlAs, AlN, InN, AlInGaP, InGaN, GaN, and AlInGaN as a light emitting layer is used.

（透光性樹脂）
実施形態１の発光装置の透光性樹脂の形状は、図１Ａに示すように円柱状としたが、後述するような四角柱状や三角柱状の多角柱状であってもよい。
透光性樹脂の上面に形成される反射面の形状は、実施形態１では、円錐形状であるが、本発明では錐形状であればよく、後述する三角錐や四角錐などの多角錐であってもよい。 (Translucent resin)
The shape of the light-transmitting resin of the light-emitting device of Embodiment 1 is a cylindrical shape as shown in FIG. 1A, but may be a quadrangular prism shape or a triangular prism shape as described later.
The shape of the reflecting surface formed on the upper surface of the translucent resin is a conical shape in the first embodiment, but may be a conical shape in the present invention, and may be a polygonal pyramid such as a triangular pyramid or a quadrangular pyramid described later. May be.

透光性樹脂の材料としては、エポキシ樹脂、シリコーン樹脂、アクリル樹脂、ポリカーボネート樹脂、非晶質ポリオレフィン樹脂、ポリスチレン樹脂、ノルボルネン系樹脂、シクロオレフィンポリマー（ＣＯＰ）等が挙げられ、用途に応じて選択される。
例えば、エポキシ樹脂はタック性が無いため、ゴミの付着が軽減される。また、シリコーン樹脂は光劣化が起こりにくいため、高出力の発光装置に好適である。さらに、アクリル樹脂は透明性が高いため、光劣化による黄変が発生しにくく、経時変化による出力低下が起こりにくいという特徴がある。またさらに、ポリカーボネート樹脂は耐衝撃性に優れるという特徴がある。 Examples of the translucent resin material include epoxy resin, silicone resin, acrylic resin, polycarbonate resin, amorphous polyolefin resin, polystyrene resin, norbornene resin, and cycloolefin polymer (COP). Is done.
For example, since epoxy resin does not have tackiness, adhesion of dust is reduced. Silicone resin is suitable for a high-output light-emitting device because photodegradation hardly occurs. Furthermore, since acrylic resin is highly transparent, yellowing due to light deterioration is unlikely to occur, and output reduction due to aging is unlikely to occur. Furthermore, the polycarbonate resin is characterized by excellent impact resistance.

（アウターリード電極）
アウターリード電極は少なくとも２以上からなり、その内の少なくとも１つが発光素子を実装するアウターリード電極となる。実施形態１では、アウターリード電極の上面の形状は、凹部を有するカップ形状であるが、平面であっても良い。さらに発光素子の実装位置は、アウターリード電極の上面に限定されず、側面であっても良い。さらにアウターリード電極の上面に段差を設け、段差部を利用して複数の発光素子を実装することも可能である。 (Outer lead electrode)
The outer lead electrode is composed of at least two, and at least one of them is an outer lead electrode on which the light emitting element is mounted. In Embodiment 1, the shape of the upper surface of the outer lead electrode is a cup shape having a recess, but may be a flat surface. Furthermore, the mounting position of the light emitting element is not limited to the upper surface of the outer lead electrode, but may be a side surface. Furthermore, it is possible to provide a step on the upper surface of the outer lead electrode and mount a plurality of light emitting elements using the step portion.

さらに実装面が複数あり、複数の実装面が異なる角度を有している多面形状とすることも可能である。   Furthermore, it is also possible to have a multi-surface shape in which there are a plurality of mounting surfaces and the plurality of mounting surfaces have different angles.

アウターリード電極は、銅、リン青銅、鉄、ニッケルなどの電気良導体を用いることができる。さらにこれらの電気良導体の表面に銀、金、パラジウム、ロジウムなどの貴金属メッキを施すことができる。   As the outer lead electrode, a good electrical conductor such as copper, phosphor bronze, iron, nickel or the like can be used. Furthermore, noble metal plating such as silver, gold, palladium and rhodium can be applied to the surface of these good electrical conductors.

（反射促進部材）
反射促進部材は、反射面上に形成される。反射面が錘状の凹部である場合、錘状の凹部の内面に膜状に形成しても良いし、錘状の凹部が埋まるように形成しても良い。さらに錘状の凹部の全面に形成しても良いし、部分的に形成しても良い。部分的に形成する場合は、錘状の凹部における最下部に形成するのが好ましい。
反射促進部材の材料として、Ａｇ，Ａｌ，Ｎｉ，Ａｕ，Ｃｕ等の金属、白色部材、又は、ＳｉＯ２/ＺｒＯ２、若しくは、ＳｉＯ２/ＴｉＯ２等の金属酸化膜層が使用される。さらにはＳｉＯ２/Ｔｉ、ＳｉＯ２／白色部材のように、金属酸化膜層を形成後、金属や白色部材を形成することも可能である。
金属や白色部材を使用する場合は発光素子からの波長に依存しないため膜厚を制御する必要は無い。そのため、光の透過を抑制する最低限の膜厚を有していれば良い。反射率の高いＡｇ若しくは耐久性の高いＡｌが好適に使用される。
また白色部材としては、白色の塗料（例えば硫酸バリウム等）や白色のメッキ（例えば白色アルマイト等）、白色のシート（例えばポリプロピレン）が好適に使用される。金属酸化膜を使用する場合は、波長と膜厚の間に依存性がある。酸化膜は高屈折率と低屈折率の酸化膜をペアに積層していく。膜厚（ｄ）と屈折率ｎと波長λとの関係はλ＝４ｎｄの関係を充足する必要がある。発光素子からの波長が複数種類であるため、その全ての光を反射する必要がある。その場合、幅広い波長領域でミラー効果を発現する反射促進部材を形成する方法と、それぞれの波長に対応するミラーを形成する方法の２種類が存在する。
幅広い波長領域でミラー効果を発現する反射促進部材は、ペアとなる酸化膜の屈折率差を大きくすることにより実現可能となる。
それぞれの波長に対応するミラーとは、例えば４００ｎｍと５００ｎｍの光を共に反射させるために４００ｎｍの条件に合わせた反射膜と５００ｎｍの条件に合わせた反射膜を互いに直列関係に積層させることにより実現可能である。反射条件に合わない方の膜に対して透過性を有するためである。 (Reflection promoting member)
The reflection promoting member is formed on the reflection surface. When the reflecting surface is a weight-shaped recess, it may be formed in a film shape on the inner surface of the weight-shaped recess or may be formed so that the weight-shaped recess is buried. Further, it may be formed on the entire surface of the weight-shaped concave portion or may be formed partially. When forming partially, it is preferable to form in the lowest part in a weight-shaped recessed part.
As a material of the reflection promoting member, a metal such as Ag, Al, Ni, Au, or Cu, a white member, or a metal oxide film layer such as SiO 2 / ZrO 2 or SiO 2 / TiO 2 is used. Furthermore, it is also possible to form a metal or a white member after forming a metal oxide film layer, such as SiO2 / Ti or SiO2 / white member.
When a metal or white member is used, it is not necessary to control the film thickness because it does not depend on the wavelength from the light emitting element. Therefore, it is only necessary to have a minimum film thickness that suppresses light transmission. Ag having high reflectivity or Al having high durability is preferably used.
As the white member, white paint (for example, barium sulfate), white plating (for example, white alumite), and white sheet (for example, polypropylene) are preferably used. When a metal oxide film is used, there is a dependency between wavelength and film thickness. The oxide film is formed by stacking a pair of oxide films having a high refractive index and a low refractive index. The relationship among the film thickness (d), the refractive index n, and the wavelength λ needs to satisfy the relationship λ = 4nd. Since there are multiple types of wavelengths from the light emitting element, it is necessary to reflect all of the light. In that case, there are two types: a method of forming a reflection promoting member that exhibits a mirror effect in a wide wavelength region, and a method of forming a mirror corresponding to each wavelength.
A reflection promoting member that exhibits a mirror effect in a wide wavelength range can be realized by increasing the refractive index difference between the paired oxide films.
A mirror corresponding to each wavelength can be realized by, for example, laminating a reflective film matched to the condition of 400 nm and a reflective film matched to the condition of 500 nm in series with each other in order to reflect both 400 nm and 500 nm light. It is. This is because it has transparency to the film that does not meet the reflection conditions.

以下、本実施形態１の発光装置の製造方法について説明する。
本方法では、まず、アウターリード１７とアウターリード１８とを所定の位置関係が保たれるように、例えば、治具で保持する。
次に、発光素子１１ａ，１１ｂをアウターリード１７のカップ１７ａの底面の所定の位置にダイボンディングにより固定して、ワイヤボンディングにより所定の配線を施す（図２Ａ）。
発光素子１１ａ，１１ｂのカップ内への固定は、例えば、硬化性樹脂により実装する方法や共晶金属により実装する方法などがあり、特に、限定されるものではない。
尚、共晶金属により発光素子を実装する場合は、発光素子の裏面に共晶金属をスパッタ等により形成して、アウターリード電極のカップ１７ａの底面に実装する。 Hereinafter, a method for manufacturing the light-emitting device of Embodiment 1 will be described.
In this method, first, the outer lead 17 and the outer lead 18 are held by, for example, a jig so that a predetermined positional relationship is maintained.
Next, the light emitting elements 11a and 11b are fixed to a predetermined position on the bottom surface of the cup 17a of the outer lead 17 by die bonding, and predetermined wiring is performed by wire bonding (FIG. 2A).
The fixing of the light emitting elements 11a and 11b in the cup includes, for example, a method of mounting with a curable resin and a method of mounting with a eutectic metal, and is not particularly limited.
When the light emitting element is mounted with eutectic metal, the eutectic metal is formed on the back surface of the light emitting element by sputtering or the like and mounted on the bottom surface of the cup 17a of the outer lead electrode.

一方、反射面となる錐形状の凹部が形成されるようにその底面に対応する錐形状の凸部が形成された型２１に、例えば、ディスペンサ１９等を用いて、例えば、熱硬化性の透光性樹脂を充填する（図２Ｂ）。
そして、発光素子１１ａ，１１ｂがカップ１７ａの底面に実装されたアウターリード１７と、アウターリード１８とを所定の位置関係を保持したまま、型２１内に充填された透光性樹脂の中に挿入して（図２Ｃ及び図２Ｄ）、硬化させた後、型２１から取り出す（図２Ｅ）。
最後に、透光性樹脂１３の先端部に型２１の凸部に対応して形成された凹部に反射膜を形成して、本実施形態１の発光装置が完成する。 On the other hand, for example, by using a dispenser 19 or the like, for example, a thermosetting transparent material is formed on the mold 21 in which the conical convex portion corresponding to the bottom surface is formed so that the conical concave portion serving as the reflection surface is formed. Fill with a light-sensitive resin (FIG. 2B).
The light emitting elements 11a and 11b are inserted into the translucent resin filled in the mold 21 with the outer lead 17 and the outer lead 18 mounted on the bottom surface of the cup 17a being held in a predetermined positional relationship. Then, after being cured (FIGS. 2C and 2D), it is removed from the mold 21 (FIG. 2E).
Finally, a reflective film is formed in the concave portion formed at the tip of the translucent resin 13 corresponding to the convex portion of the mold 21 to complete the light emitting device of the first embodiment.

以下、本発明に係る変形例について説明する。
変形例１．
図３は、本発明に係る変形例１の発光装置１０１の斜視図である。
この変形例１の発光装置１０１は、透光性樹脂１１３の外形が略四角柱であり、正確には、裁頭四角錐形状になっていて若干反射面１１５が形成された上面が小さくなるようなテーパが設けられている。
変形例１において、透光性樹脂１１３の外形以外については実施形態１と同様に構成されており、作製方法も実施形態１と同様である。
以上のように構成されて変形例１の発光装置１０１は、透光性樹脂１１３の外形が略四角柱であることからその角の部分で光が散乱されて視る方向によって発光色がより複雑に変化する。 Hereinafter, modifications according to the present invention will be described.
Modification 1
FIG. 3 is a perspective view of the light-emitting device 101 of Modification 1 according to the present invention.
In the light emitting device 101 of the first modification, the outer shape of the translucent resin 113 is a substantially quadrangular prism. To be precise, the upper surface on which the reflecting surface 115 is slightly formed is small because it has a truncated quadrangular pyramid shape. A taper is provided.
In the modification 1, it is comprised similarly to Embodiment 1 except the external shape of the translucent resin 113, and the preparation methods are also the same as that of Embodiment 1. FIG.
The light emitting device 101 of the first modification configured as described above has a more complicated emission color depending on the direction in which light is scattered at the corners because the outer shape of the translucent resin 113 is a substantially quadrangular prism. To change.

変形例２．
図４は、本発明に係る変形例２の発光装置１０２の斜視図である。
この変形例２の発光装置１０１は、透光性樹脂２１３の外形が略四角柱であり、かつ反射面２１５が四角錐形状に形成されており、方向が異なる４つの反射面２１５ａ、２１５ｂ、２１５ｃ、２１５ｄからなる。尚、本変形例２の発光装置１０２では、略四角柱形状の透光性樹脂２１３の外面は、方向が異なる４つの面２１３ａ、２１３ｂ、２１３ｃ、２１３ｄからなる。
変形例２において、透光性樹脂１１３の外形及び反射面の形状以外については実施形態１と同様に構成されており、作製方法も実施形態１と同様である。
以上のように構成されて変形例２の発光装置１０２は、透光性樹脂２１３の外形が略四角柱でありかつ反射面の形状が四角錐であることから、透光性樹脂２１３の外面の角及び反射面の角の部分で光が散乱されて視る方向によって発光色がよりいっそう複雑に変化する。 Modification 2
FIG. 4 is a perspective view of the light emitting device 102 of Modification 2 according to the present invention.
In the light emitting device 101 according to the second modified example, the translucent resin 213 has a substantially quadrangular prism and the reflective surface 215 is formed in a quadrangular pyramid shape, and the four reflective surfaces 215a, 215b, and 215c having different directions are used. 215d. In the light emitting device 102 according to the second modification, the outer surface of the substantially square columnar translucent resin 213 includes four surfaces 213a, 213b, 213c, and 213d having different directions.
In the modified example 2, except for the outer shape of the translucent resin 113 and the shape of the reflecting surface, the configuration is the same as in the first embodiment, and the manufacturing method is the same as in the first embodiment.
In the light emitting device 102 of Modification 2 configured as described above, since the outer shape of the translucent resin 213 is a substantially quadrangular prism and the shape of the reflecting surface is a quadrangular pyramid, the outer surface of the translucent resin 213 is The light emission color changes more complicatedly depending on the direction in which light is scattered and viewed at the corners and the corners of the reflecting surface.

また、本発明では、発光素子１１ａ，１１ｃの配置に関しても、種々の変形が可能である。尚、以下の変形例３〜６において、実施形態１の透光性樹脂形状、変形例１の透光性樹脂形状又は変形例２の透光性樹脂形状のいずれであってもよい。
変形例３．
変形例３の発光装置では、図５Ｂに示すように、発光素子の実装面にカップ部を設けることなく平坦にしたアウターリード１１７を用いて、その平坦面に発光素子１１ａ，１１ｃを実装している。
このようにすると、反射面で反射された光とともに、発光素子の側面から出射された光を直接外部に出射できる。 In the present invention, various modifications can be made with respect to the arrangement of the light emitting elements 11a and 11c. In addition, in the following modifications 3 to 6, any of the translucent resin shape of Embodiment 1, the translucent resin shape of Modification 1 or the translucent resin shape of Modification 2 may be used.
Modification 3
In the light emitting device of Modification 3, as shown in FIG. 5B, the light emitting elements 11a and 11c are mounted on the flat surface using the outer leads 117 that are flat without providing the cup portion on the mounting surface of the light emitting element. Yes.
If it does in this way, the light radiate | emitted from the side surface of the light emitting element can be directly radiate | emitted outside with the light reflected by the reflective surface.

変形例４．
また、変形例４の発光装置では、図５Ｃに示すように、発光素子の実装面にカップ部を設けることなく平坦にしたアウターリード１１７を用いて、変形例３の発光装置においてさらにアウターリード１１７の側面に第３の発光素子１１ｂを設けている。
このようにすると、第３の発光素子１１ｂからの光を放射することができ、より複雑に変化する発光色の光が得られる。 Modification 4
Further, in the light emitting device of the modification example 4, as shown in FIG. 5C, the outer lead 117 is further used in the light emitting device of the modification example 3 by using the outer lead 117 flattened without providing the cup portion on the mounting surface of the light emitting element. A third light-emitting element 11b is provided on the side surface of the substrate.
In this way, light from the third light emitting element 11b can be emitted, and light of emission colors that change more complicatedly can be obtained.

変形例５．
また、変形例５の発光装置では、図５Ｄに示すように、実装面に段差を設けたアウターリード２１７を用いて、発光素子を設けている。
このようにすると、例えば、低い面２１７ｂに設けられた発光素子１１ａの光が一段高い面２１７ａにより遮られるので、視る方向による発光色の違いがより明確になる。
また、段差側面による反射により高い装飾性の発光装置の実現が可能になる。 Modification 5
Further, in the light emitting device of Modification 5, as shown in FIG. 5D, the light emitting element is provided using the outer lead 217 having a step on the mounting surface.
In this case, for example, the light of the light emitting element 11a provided on the lower surface 217b is blocked by the higher surface 217a, so that the difference in emission color depending on the viewing direction becomes clearer.
In addition, a highly decorative light emitting device can be realized by reflection from the side surface of the step.

変形例６．
さらに、変形例６の発光装置は、図５Ｅに示すように、発光素子の実装面を三角錐形状にしたアウターリード３１７を用いて、その三角錐形状の３つの面３１７ａ，３１７ｂ，３１７ｃにそれぞれ発光素子を設けている。
このようにすると、発光素子１１ａ、１１ｂ、１１ｃから出射される光を異なる方向に出射することができ、視る方向による発光色の違いがより明確になる。
また、実装面の角度を調節することにより、任意の割合で混色させることも可能になる。尚、図示したのは実装面が三角錘状の凸部であるがこれに限定されず、四角錘状等の多角錘状でも良い。さらに凸形状だけでなく、実装面が錘状の凹部であっても良い。 Modification 6
Further, as shown in FIG. 5E, the light emitting device of Modification 6 uses outer leads 317 in which the mounting surface of the light emitting element is formed in a triangular pyramid shape, and each of the three triangular pyramid surfaces 317a, 317b, and 317c. A light emitting element is provided.
In this way, the light emitted from the light emitting elements 11a, 11b, and 11c can be emitted in different directions, and the difference in emission color depending on the viewing direction becomes clearer.
In addition, by adjusting the angle of the mounting surface, it is possible to mix colors at an arbitrary ratio. Although the illustrated mounting surface is a triangular pyramid-shaped convex portion, the present invention is not limited to this, and may be a polygonal pyramid shape such as a quadrangular pyramid shape. Furthermore, not only the convex shape but also the mounting surface may be a concave portion having a weight shape.

実施形態２．
本発明に係る実施形態２の発光装置１０３は、図６Ａに示すように、（１）実施形態１のアウターリード１７のカップ１７ａ内に３つの発光素子１１ａ，１１ｂ，１１ｃを三角配置し、（２）透光性樹脂に三角錐形状の反射面３１３を形成し、さらにその外形を三角柱にしている点が実施形態１と異なっている。
尚、本実施形態２の発光装置１０３では、図６Ｂに示すように、反射面３１５を構成する面方向の異なる３つの反射面３１５ａ，３１５ｂ，３１５ｃにそれぞれ発光面が対向するように発光素子１１ａ，１１ｂ，１１ｃが配置されている。ここで、発光素子１１ａは、例えば、赤色発光素子であり、発光素子１１ｂは緑色発光素子であり、発光素子１１ｃは青色発光素子である。 Embodiment 2. FIG.
In the light emitting device 103 according to the second embodiment of the present invention, as shown in FIG. 6A, (1) three light emitting elements 11a, 11b, and 11c are arranged in a triangle in the cup 17a of the outer lead 17 according to the first embodiment. 2) Different from Embodiment 1 in that a triangular pyramid-shaped reflecting surface 313 is formed on a translucent resin, and the outer shape thereof is a triangular prism.
In the light emitting device 103 according to the second embodiment, as shown in FIG. 6B, the light emitting element 11a is arranged such that the light emitting surface faces the three reflecting surfaces 315a, 315b, and 315c having different surface directions constituting the reflecting surface 315, respectively. , 11b, 11c are arranged. Here, the light emitting element 11a is, for example, a red light emitting element, the light emitting element 11b is a green light emitting element, and the light emitting element 11c is a blue light emitting element.

このように構成された実施形態２の発光装置１０３では、赤色発光素子１１ａから出射される赤色光は、対向する反射面３１５ａで反射され、緑色発光素子１１ｂから出射される緑色光は対向する反射面３１５ｂで反射され、青色発光素子１１ｃから出射される青色光は対向する反射面３１５ｃで反射されて、それぞれ、外表面３１３ａ，３１３ｂ，３１３ｃから主として出射される。
このように構成された実施形態２の発光装置１０３は、発光素子１１ａ、１１ｂ、１１ｃから出射される異なる色の光を異なる方向に出射することができ、視る方向による発光色の違いがより明確になる。
また、本実施形態２の発光装置１０３では、反射面の角及び外表面の角において発光色が複雑に変化して、より装飾性の向上が図れる。 In the light emitting device 103 according to the second embodiment configured as described above, the red light emitted from the red light emitting element 11a is reflected by the opposed reflecting surface 315a, and the green light emitted from the green light emitting element 11b is reflected by the opposed light. The blue light reflected by the surface 315b and emitted from the blue light emitting element 11c is reflected by the opposing reflecting surface 315c and emitted mainly from the outer surfaces 313a, 313b, and 313c, respectively.
The light emitting device 103 according to the second embodiment configured as described above can emit light of different colors emitted from the light emitting elements 11a, 11b, and 11c in different directions, and the difference in emission color depending on the viewing direction is more. Become clear.
Further, in the light emitting device 103 according to the second embodiment, the emission color is changed in a complicated manner at the corners of the reflecting surface and the corners of the outer surface, and the decorativeness can be further improved.

変形例７．
実施形態２の発光装置１０３では、反射面３１５ａ，３１５ｂ，３１５ｃにそれぞれ発光面が対向するように発光素子１１ａ，１１ｂ，１１ｃが配置して、赤色発光素子１１ａから出射される赤色光が主として反射面３１５ａで反射され、緑色発光素子１１ｂから出射される緑色光が主として反射面３１５ｂで反射され、青色発光素子１１ｃから出射される青色光が主として反射面３１５ｃで反射されるように構成したが、変形例７では、発光素子１１ａ，１１ｂ，１１ｃを以下のように配置した。
すなわち、本変形例７では、図６Ｃに示すように、反射面３１５ａと反射面３１５ｂの境界部分に赤色発光素子１１ａが対向し、反射面３１５ｂと反射面３１５ｃの境界部分に緑色発光素子１１ｂが対向し、反射面３１５ｃと反射面３１５ａの境界部分に青色発光素子１１ｃが対向するようにそれぞれ配置している。 Modification 7
In the light emitting device 103 of the second embodiment, the light emitting elements 11a, 11b, and 11c are arranged so that the light emitting surfaces face the reflecting surfaces 315a, 315b, and 315c, respectively, and the red light emitted from the red light emitting element 11a is mainly reflected. The green light reflected by the surface 315a and emitted from the green light emitting element 11b is mainly reflected by the reflecting surface 315b, and the blue light emitted from the blue light emitting element 11c is mainly reflected by the reflecting surface 315c. In the modified example 7, the light emitting elements 11a, 11b, and 11c are arranged as follows.
That is, in Modification 7, as shown in FIG. 6C, the red light emitting element 11a is opposed to the boundary portion between the reflecting surface 315a and the reflecting surface 315b, and the green light emitting device 11b is disposed at the boundary portion between the reflecting surface 315b and the reflecting surface 315c. The blue light emitting elements 11c are arranged so as to face each other and face the boundary portion between the reflecting surface 315c and the reflecting surface 315a.

このようにすると、赤色発光素子１１ａから出射される光は、反射面３１５ａと反射面３１５ｂに分かれて入射してそれぞれの反射面３１５ａ，３１５ｂで反射される。
緑色発光素子１１ｂから出射される光は、反射面３１５ｂと反射面３１５ｃに分かれて入射してそれぞれの反射面３１５ｂ，３１５ｃで反射される。青色発光素子１１ｃから出射される光は、反射面３１５ｃと反射面３１５ａに分かれて入射してそれぞれの反射面３１５ｃ，３１５ａで反射される。 If it does in this way, the light radiate | emitted from the red light emitting element 11a will be divided into the reflective surface 315a and the reflective surface 315b, will inject, and will be reflected by each reflective surface 315a, 315b.
The light emitted from the green light emitting element 11b is divided into the reflecting surface 315b and the reflecting surface 315c, and is reflected by the reflecting surfaces 315b and 315c. The light emitted from the blue light emitting element 11c is incident on the reflecting surface 315c and the reflecting surface 315a, and is reflected by the reflecting surfaces 315c and 315a.

したがって、本変形例７では、反射面３１５ａには、赤色発光素子１１ａから出射される赤色の光と青色発光素子１１ｃから出射される青色の光が入射されてその位置に応じた混色度合いの色の光が反射光して出力される。例えば、図６Ｃに示すように、赤色発光素子１１ａに近い側では赤みを帯びた紅色の光が、青色発光素子１１ｃに近い側では青みを帯びた紅色の光が、中央部では中間の紅色が出射される。   Therefore, in the seventh modification, red light emitted from the red light emitting element 11a and blue light emitted from the blue light emitting element 11c are incident on the reflecting surface 315a, and the color having a color mixing degree corresponding to the position thereof. Is reflected and output. For example, as shown in FIG. 6C, a reddish red light is near the red light emitting element 11a, a bluish red light is near the blue light emitting element 11c, and an intermediate red color is at the center. Emitted.

また、反射面３１５ｂには、赤色発光素子１１ａから出射される赤色の光と緑色発光素子１１ｂから出射される緑色の光が入射されてその位置に応じた混色度合いの色の光が反射光して出力される。例えば、図６Ｃに示すように、赤色発光素子１１ａに近い側では赤みを帯びた黄色の光が、緑色発光素子１１ｂに近い側では緑色を帯びた黄色の光が、中央部では黄色の光が出射される。
さらに、反射面３１５ｃには、青色発光素子１１ｃから出射される青色の光と緑色発光素子１１ｂから出射される緑色の光が入射されてその位置に応じた混色度合いの色の光が反射光して出力される。例えば、図６Ｃに示すように、青色発光素子１１ｃに近い側では青みを帯びたシアン色の光が、緑色発光素子１１ｂに近い側では緑色を帯びたシアン色の光が、中央部ではシアン色の光が出射される。
以上のように、本変形例７の発光装置では、見る方向によって異なるさまざまな色の光を出射することができる発光装置を提供できる。 Further, red light emitted from the red light emitting element 11a and green light emitted from the green light emitting element 11b are incident on the reflecting surface 315b, and light having a color mixture degree corresponding to the position is reflected. Is output. For example, as shown in FIG. 6C, reddish yellow light is near the red light emitting element 11a, greenish yellow light is near the green light emitting element 11b, and yellow light is centered. Emitted.
Further, blue light emitted from the blue light emitting element 11c and green light emitted from the green light emitting element 11b are incident on the reflecting surface 315c, and light having a color mixture according to the position is reflected. Is output. For example, as shown in FIG. 6C, blue light cyan light is near the blue light emitting element 11c, green light cyan is near the green light emitting element 11b, and cyan light is central. Light is emitted.
As described above, the light emitting device according to the seventh modification can provide a light emitting device that can emit various colors of light depending on the viewing direction.

実施形態３．
本発明に係る実施形態３の発光装置は、実施形態１の発光装置とは、アウターリード１７のカップ１７ａ内の発光源の構造が異なっている。その他の部分は、実施形態１と同様である。すなわち、実施形態１では、発光源として発光色の異なる複数の発光素子を用いて異なる発光部を構成したが、本実施形態３では、図７に示すように、１つの発光素子１１を用い、その上に異なる発光色の複数の蛍光体層を形成して発光色の異なる複数の発光部を形成している。
尚、図７及び図９Ａには、実施形態３の一例として、１つの発光素子１１の上に異なる発光色の２つの蛍光体層４０１ａ，４０１ｂを形成した例を示している。 Embodiment 3. FIG.
The light emitting device of Embodiment 3 according to the present invention is different from the light emitting device of Embodiment 1 in the structure of the light emitting source in the cup 17a of the outer lead 17. Other parts are the same as those in the first embodiment. That is, in the first embodiment, different light emitting units are configured by using a plurality of light emitting elements having different emission colors as the light emitting source. However, in the third embodiment, as shown in FIG. A plurality of phosphor layers having different emission colors are formed thereon to form a plurality of light emitting portions having different emission colors.
7 and 9A show an example in which two phosphor layers 401a and 401b having different emission colors are formed on one light emitting element 11 as an example of the third embodiment.

この実施形態３の発光装置は、以下のようにして作製される。
まず、図８Ａに示すように、アウターリード１７とアウターリード１８とを所定の位置関係が保たれるように、例えば、治具で保持して、発光素子１１をカップ１７ａの底面の所定の位置にダイボンディングして、ワイヤボンディングにより所定の配線を施す。
次に、第１の蛍光体を含む第１樹脂と第２の蛍光体を含む第２樹脂とを発光素子１１の異なる位置にディスペンサにより塗布して、この第１樹脂と第２樹脂と硬化することにより、蛍光体層４０１ａ，４０１ｂを形成する。
そして、実施形態１と同様にして、例えば、熱硬化性の透光性樹脂を充填した型２１に、アウターリード１７と、アウターリード１８とを所定の位置関係を保持したまま、透光性樹脂の中に挿入して、硬化させた後、型２１から取り出す。
最後に、凹部に反射膜を形成する。 The light emitting device of the third embodiment is manufactured as follows.
First, as shown in FIG. 8A, the outer lead 17 and the outer lead 18 are held by, for example, a jig so that the predetermined positional relationship is maintained, and the light emitting element 11 is placed at a predetermined position on the bottom surface of the cup 17a. Then, predetermined wiring is applied by wire bonding.
Next, the first resin containing the first phosphor and the second resin containing the second phosphor are applied to different positions of the light emitting element 11 by a dispenser, and the first resin and the second resin are cured. Thus, the phosphor layers 401a and 401b are formed.
Then, in the same manner as in the first embodiment, for example, a translucent resin is maintained while maintaining a predetermined positional relationship between the outer lead 17 and the outer lead 18 in a mold 21 filled with a thermosetting translucent resin. After being inserted and cured, it is taken out from the mold 21.
Finally, a reflective film is formed in the recess.

本発明に係る発光装置に使用可能な蛍光体としては、発光素子からの光をより長波長に変換させるものであればよいが、発光効率の良いものが好ましく、耐熱性の高い無機物蛍光体であることがさらに好ましい。無機物蛍光体の粒径は、中心粒径が６μｍ〜５０μｍの範囲が好ましく、より好ましくは１５μｍ〜３０μｍであり、このような粒径を有する蛍光体は光の吸収率及び変換効率が高く、且つ、励起波長幅が広い。６μｍより小さい蛍光体は、比較的凝集体を形成しやすく、密になって沈降されるため、光の透過率を減少させてしまう他、光の吸収率及び変換効率が悪く励起波長の幅も狭い傾向がある。   The phosphor that can be used in the light-emitting device according to the present invention is not particularly limited as long as it can convert light from the light-emitting element into a longer wavelength, but preferably has a high luminous efficiency, and is an inorganic phosphor with high heat resistance. More preferably it is. As for the particle size of the inorganic phosphor, the center particle size is preferably in the range of 6 μm to 50 μm, more preferably 15 μm to 30 μm, and the phosphor having such a particle size has high light absorption and conversion efficiency, and Wide excitation wavelength range. Phosphors smaller than 6 μm are relatively easy to form aggregates and become densely settled, so that the light transmittance is reduced, and the light absorption and conversion efficiency is poor and the excitation wavelength width is also low. There is a narrow tendency.

以下、実施形態２の変形例について説明する。
尚、以下の変形例では、反射面１１として湾曲した反射面を用いている。本発明ではこのような反射面を用いてもよい。
また、以下の説明で参照する図９Ａ〜図９Ｄ及び図１０Ａ〜図１０Ｄでは、反射面の中心軸と発光部との関係がよくわかるように、反射面を実際より発光部の近くに描いている。 Hereinafter, modifications of the second embodiment will be described.
In the following modification, a curved reflecting surface is used as the reflecting surface 11. In the present invention, such a reflective surface may be used.
Further, in FIGS. 9A to 9D and FIGS. 10A to 10D referred to in the following description, the reflecting surface is drawn closer to the light emitting portion than the actual one so that the relationship between the central axis of the reflecting surface and the light emitting portion can be understood well. Yes.

変形例８．
変形例８の発光装置では、図９Ｂに示すように、異なる蛍光体層の一部がオーバーラップするように蛍光体層４０１ａ，４０１ｂを形成している。
このようにすると、２つの蛍光体層４０１ａ，４０１ｂを用いることにより、異なる発光色の３つの発光部が形成される。 Modification 8
In the light emitting device of Modification 8, as shown in FIG. 9B, the phosphor layers 401a and 401b are formed so that parts of different phosphor layers overlap each other.
In this way, by using the two phosphor layers 401a and 401b, three light emitting portions having different emission colors are formed.

変形例９．
変形例９の発光装置では、図９Ｃに示すように、発光素子の発光面の一部が蛍光体に覆われないように蛍光体層４０１ａ，４０１ｂを離して形成している。
このようにしても、２つの蛍光体層４０１ａ，４０１ｂを用いることにより、異なる発光色の３つの発光部が形成される。 Modification 9
In the light emitting device of Modification 9, as shown in FIG. 9C, the phosphor layers 401a and 401b are formed apart so that a part of the light emitting surface of the light emitting element is not covered with the phosphor.
Even in this way, three light emitting portions having different emission colors are formed by using the two phosphor layers 401a and 401b.

変形例１０．
変形例１０の発光装置では、図９Ｄに示すように、蛍光体層４０１ａ，４０１ｂとは別に発光素子の発光面の一部を覆う発光色の異なる第３の蛍光体層４０１ｃを形成している。
このようにしても、異なる発光色の３つの発光部を形成することができる。 Modification 10
In the light emitting device of Modification 10, as shown in FIG. 9D, a third phosphor layer 401c having a different emission color that covers a part of the light emitting surface of the light emitting element is formed separately from the phosphor layers 401a and 401b. .
Even in this case, three light emitting portions having different emission colors can be formed.

変形例１１．
変形例１１の発光装置では、図１０Ａに示すように、発光素子１１ａ，１１ｂにそれぞれ蛍光体層４０１ａ，４０１ｂを形成するようにしている。
このようにすると、発光素子１１ａ，１１ｂと蛍光体層４０１ａ，４０１ｂの組み合わせによりさらに多くのバリエーションが可能になる。 Modification 11
In the light emitting device of Modification 11, as shown in FIG. 10A, phosphor layers 401a and 401b are formed on the light emitting elements 11a and 11b, respectively.
If it does in this way, many variations will become possible by the combination of light emitting element 11a, 11b and fluorescent substance layer 401a, 401b.

変形例１２．
また、変形例１２の発光装置では、図１０Ｂに示すように、発光素子１１ａに蛍光体層４０１ａ，４０１ｃを形成し、発光素子１１ｂに蛍光体層４０１ｂを形成するようにしている。
このようにすると、異なる発光色の３つの発光部を形成することができる。 Modification 12
In the light emitting device of Modification 12, as shown in FIG. 10B, the phosphor layers 401a and 401c are formed on the light emitting element 11a, and the phosphor layer 401b is formed on the light emitting element 11b.
In this way, three light emitting portions having different emission colors can be formed.

変形例１３．
また、変形例１３の発光装置では、図１０Ｃに示すように、発光素子１１ａの一部に蛍光体層４０１ａを形成し、発光素子１１ｂに蛍光体層４０１ｂを形成するようにしている。
このようにしても、異なる発光色の３つの発光部を形成することができる。 Modification 13
In the light emitting device of Modification 13, as shown in FIG. 10C, the phosphor layer 401a is formed on a part of the light emitting element 11a, and the phosphor layer 401b is formed on the light emitting element 11b.
Even in this case, three light emitting portions having different emission colors can be formed.

変形例１４．
さらに、変形例１４の発光装置は、図１０Ｃに示すように、発光素子１１ａの一部に蛍光体層４０１ａを形成して残りの部分に蛍光体層４０１ｂを形成し、発光素子１１ｂには蛍光体層を形成していない。
このようにしても、異なる発光色の３つの発光部を形成することができる。 Modification 14
Furthermore, as shown in FIG. 10C, in the light emitting device of Modification Example 14, the phosphor layer 401a is formed on a part of the light emitting element 11a, and the phosphor layer 401b is formed on the remaining part. No body layer is formed.
Even in this case, three light emitting portions having different emission colors can be formed.

実施形態４．
本発明に係る実施形態４の発光装置は、図１１Ａ及び図１１Ｂに示すように、アウターリード５１７及びアウターリード５１８の形状と、透光性樹脂５１３の形状が実施形態１〜３とは異なっている。
特に、本実施形態４では、透光性樹脂５１３の上面に盛り上がった凸部を形成して、その凸部に反射面５１５を形成して、主としてその凸部の外周面から光を出射するように構成されている。
このようにすると、凸部の外周面の形状により光の放射方向が制御（指向性の制御）でき、かつ視る方向により色の異なる光が観測される。
尚、本実施形態４の発光装置において、発光素子及びその周辺の構造は、実施形態１〜３、変形例１〜１４の構造が適用できるし、また、他の構造を適用することも可能である。
また、実施形態４の発光装置は、アウターリード５１７，５１８の足が計４本出ており、他の実施形態に比べて実装性、安定性、取り扱いやすさ等が向上する。 Embodiment 4 FIG.
As shown in FIGS. 11A and 11B, the light emitting device of the fourth embodiment according to the present invention is different from the first to third embodiments in the shape of the outer lead 517 and the outer lead 518 and the shape of the translucent resin 513. Yes.
In particular, in the fourth embodiment, a raised protrusion is formed on the upper surface of the translucent resin 513, and a reflection surface 515 is formed on the protrusion so that light is emitted mainly from the outer peripheral surface of the protrusion. It is configured.
In this way, the light emission direction can be controlled (directivity control) by the shape of the outer peripheral surface of the convex portion, and light of different colors is observed depending on the viewing direction.
In the light emitting device of the fourth embodiment, the structures of the first to third embodiments and the modified examples 1 to 14 can be applied to the light emitting element and its peripheral structure, and other structures can also be applied. is there.
In addition, the light emitting device of the fourth embodiment has four outer leads 517 and 518 in total, which improves the mountability, stability, ease of handling, and the like compared to other embodiments.

本発明に係る実施形態１の発光装置１００の構成を示す斜視図である。It is a perspective view which shows the structure of the light-emitting device 100 of Embodiment 1 which concerns on this invention. 図１Ａの断面図である。It is sectional drawing of FIG. 1A. 実施形態１の製造過程における第１工程の断面図である。6 is a cross-sectional view of a first step in the manufacturing process of Embodiment 1. FIG. 実施形態１の製造過程における第２工程の断面図である。6 is a sectional view of a second step in the manufacturing process of Embodiment 1. FIG. 実施形態１の製造過程における第３工程の断面図である。6 is a sectional view of a third step in the manufacturing process of Embodiment 1. FIG. 実施形態１の製造過程における第４工程の断面図である。6 is a sectional view of a fourth step in the manufacturing process of Embodiment 1. FIG. 実施形態１の製造過程により完成した発光装置の断面図である。FIG. 3 is a cross-sectional view of the light emitting device completed through the manufacturing process of Embodiment 1. 本発明に係る変形例１の発光装置の斜視図である。It is a perspective view of the light-emitting device of the modification 1 which concerns on this invention. 本発明に係る変形例２の発光装置の斜視図である。It is a perspective view of the light-emitting device of the modification 2 which concerns on this invention. 実施形態１の発光装置における発光素子及びその周辺の構成を示す斜視図である。FIG. 3 is a perspective view showing a configuration of a light emitting element and its periphery in the light emitting device of Embodiment 1. 本発明に係る変形例３の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 3 which concerns on this invention. 本発明に係る変形例４の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 4 which concerns on this invention. 本発明に係る変形例５の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 5 which concerns on this invention. 本発明に係る変形例６の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 6 which concerns on this invention. 本発明に係る実施形態２の発光装置の構成を示す斜視図である。It is a perspective view which shows the structure of the light-emitting device of Embodiment 2 which concerns on this invention. 実施形態２の発光装置における反射面に対する発光素子の位置関係を模式的に示す平面図である。6 is a plan view schematically showing a positional relationship of light emitting elements with respect to a reflecting surface in a light emitting device of Embodiment 2. FIG. 実施形態２の変形例にかかる発光装置における反射面に対する発光素子の位置関係を模式的に示す平面図である。FIG. 10 is a plan view schematically showing a positional relationship of light emitting elements with respect to a reflecting surface in a light emitting device according to a modification of the second embodiment. 本発明に係る実施形態３の発光装置の構成を示す断面図である。It is sectional drawing which shows the structure of the light-emitting device of Embodiment 3 which concerns on this invention. 実施形態２の製造過程における第１工程の断面図である。10 is a cross-sectional view of a first step in the manufacturing process of Embodiment 2. FIG. 実施形態２の製造過程における第２工程の断面図である。10 is a sectional view of a second step in the manufacturing process of Embodiment 2. FIG. 実施形態２の製造過程における第３工程の断面図である。10 is a cross-sectional view of a third step in the manufacturing process of Embodiment 2. FIG. 実施形態３の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the light emitting element in the light-emitting device of Embodiment 3, and the structure of the periphery. 本発明に係る変形例８の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 8 which concerns on this invention. 本発明に係る変形例９の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 9 which concerns on this invention. 本発明に係る変形例１０の発光装置における発光素子及びその周辺の構成を示す斜視図である。It is a perspective view which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 10 which concerns on this invention. 本発明に係る変形例１１の発光装置における発光素子及びその周辺の構成を示す断面図である。It is sectional drawing which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 11 which concerns on this invention. 本発明に係る変形例１２の発光装置における発光素子及びその周辺の構成を示す断面図である。It is sectional drawing which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 12 which concerns on this invention. 本発明に係る変形例１３の発光装置における発光素子及びその周辺の構成を示す断面図である。It is sectional drawing which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 13 which concerns on this invention. 本発明に係る変形例１４の発光装置における発光素子及びその周辺の構成を示す断面図である。It is sectional drawing which shows the structure of the light emitting element and its periphery in the light-emitting device of the modification 14 which concerns on this invention. 本発明に係る実施形態４の発光装置の構成を示す斜視図である。It is a perspective view which shows the structure of the light-emitting device of Embodiment 4 which concerns on this invention. 本発明に係る実施形態４の発光装置におけるアウターリードの構成を示す斜視図である。It is a perspective view which shows the structure of the outer lead in the light-emitting device of Embodiment 4 which concerns on this invention.

符号の説明Explanation of symbols

１１ａ，１１ｂ，１１ｃ・・・発光素子、
１３，１１３，２１３・・・透光性樹脂、
１５，１１５，２１５ａ，２１５ｂ，２１５ｃ，２１５ｄ・・・反射面、
１７，１８，１１７，２１７，３１７・・・アウターリード電極、
１７ａ・・・カップ、
２１・・・型、
１００，１０１，１０２，１０３・・・発光装置。 11a, 11b, 11c... Light emitting element,
13, 113, 213... Translucent resin,
15, 115, 215a, 215b, 215c, 215d ... reflective surface,
17, 18, 117, 217, 317 ... outer lead electrode,
17a ... cup,
21 ... mold,
100, 101, 102, 103... Light emitting device.

Claims (10)

異なる色の光を異なる発光部から出射する発光源と、
前記発光部から出射される光を反射させる錐形状の反射面を有し、前記発光源を覆う透光性樹脂と、を備え、
前記発光部のうちの１以上が前記錐形状の中心軸から離れて位置するように前記発光源を設けたことを特徴とする発光装置。 A light source that emits light of different colors from different light emitting sections;
A cone-shaped reflective surface that reflects light emitted from the light emitting unit, and a translucent resin that covers the light emitting source,
The light-emitting device, wherein the light-emitting source is provided so that one or more of the light-emitting portions are located away from the central axis of the cone shape. 前記発光源は、少なくとも１つの発光素子と、該発光素子の上部に設けられた発光色が異なる複数の蛍光体層とを含んでなり、前記各蛍光体層に対応してそれぞれ前記発光部が形成された請求項１記載の発光装置。 The light-emitting source includes at least one light-emitting element and a plurality of phosphor layers having different emission colors provided on the light-emitting element, and the light-emitting units correspond to the phosphor layers, respectively. The light-emitting device according to claim 1 formed. 前記発光源は、発光色の異なる複数の発光素子を含んでなる請求項１記載の発光装置。 The light-emitting device according to claim 1, wherein the light-emitting source includes a plurality of light-emitting elements having different emission colors. 前記錐形状は多角錐である請求項１〜３のうちのいずれか１つに記載の発光装置。 The light-emitting device according to claim 1, wherein the cone shape is a polygonal pyramid. 前記発光部はそれぞれ、前記多角錐を構成する隣接する２つの面の境界部に対向するように配置された請求項４記載の発光装置。 The light emitting device according to claim 4, wherein each of the light emitting units is disposed so as to face a boundary portion between two adjacent surfaces constituting the polygonal pyramid. 前記発光部はそれぞれ、前記多角錐を構成する各面に対向するように配置された請求項４記載の発光装置。 The light emitting device according to claim 4, wherein each of the light emitting units is disposed so as to face each surface constituting the polygonal pyramid. 前記錐形状は円錐である請求項１〜３のうちのいずれか１つに記載の発光装置。 The light-emitting device according to claim 1, wherein the cone shape is a cone. 前記透光性樹脂の外形が多角柱であり、前記錐形状の中心軸と前記多角柱の中心軸とが略一致する請求項１〜７のうちのいずれか１つに記載の発光装置。 The light emitting device according to any one of claims 1 to 7, wherein an outer shape of the translucent resin is a polygonal column, and a central axis of the cone shape and a central axis of the polygonal column substantially coincide with each other. 前記透光性樹脂の外形が円柱であり、前記錐形状の中心軸と前記円柱の中心軸とが略一致する請求項１〜７のうちのいずれか１つに記載の発光装置。 The light emitting device according to any one of claims 1 to 7, wherein an outer shape of the translucent resin is a cylinder, and a center axis of the cone shape and a center axis of the cylinder substantially coincide with each other. 全ての前記発光部が前記錐形状の中心軸から離れて位置するように前記発光源を設けた請求項１〜９のうちのいずれか１つに記載の発光装置。 The light emitting device according to any one of claims 1 to 9, wherein the light emitting source is provided so that all the light emitting units are located away from the central axis of the cone shape.
JP2007033261A 2006-02-20 2007-02-14 Light emitting device Pending JP2007266583A (en)

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JP2012509590A (en) * 2008-11-21 2012-04-19 エルジー イノテック カンパニー リミテッド Light emitting device and display device having the same

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JP2010098313A (en) * 2008-10-15 2010-04-30 Samsung Led Co Ltd Led package module
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