JP2001196637A - Light emitting device - Google Patents

Light emitting device

Info

Publication number
JP2001196637A
JP2001196637A JP2000002150A JP2000002150A JP2001196637A JP 2001196637 A JP2001196637 A JP 2001196637A JP 2000002150 A JP2000002150 A JP 2000002150A JP 2000002150 A JP2000002150 A JP 2000002150A JP 2001196637 A JP2001196637 A JP 2001196637A
Authority
JP
Japan
Prior art keywords
light emitting
light
emitting element
opening
sealing member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000002150A
Other languages
Japanese (ja)
Inventor
Yoshinobu Suehiro
好伸 末広
Takemasa Yasukawa
武正 安川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP2000002150A priority Critical patent/JP2001196637A/en
Publication of JP2001196637A publication Critical patent/JP2001196637A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Led Device Packages (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a light emitting device composing a higher-quality full-color light source with less nonuniformity in color balance even at positions near the light source. SOLUTION: A plurality of light emitting elements different in characteristics are disposed in the openings provided on a support, and the openings are filled with a sealing material. The width of the openings at the positions where light emitting elements having narrow luminous intensity distribution angles are disposed is reduced to form the surface of the sealing material like a concave lens through which the light from the light emitting elements passes.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、発光装置に関する。詳
しくは、スキャナー光源等に利用される発光装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting device. More specifically, the present invention relates to a light emitting device used for a scanner light source or the like.

【０００２】[0002]

【従来の技術】スキャナー等のフルカラー光源として、
赤色、緑色、及び青色の各発光素子を支持体の開口部に
配置し、透明樹脂を当該開口部に充填した構成の光源が
知られている。かかる光源では、各発光素子からの光
は、当該開口部より放出され、互いに混色されることに
よりフルカラー光源を構成する。2. Description of the Related Art As a full-color light source such as a scanner,
There is known a light source having a structure in which red, green, and blue light-emitting elements are arranged in an opening of a support and transparent resin is filled in the opening. In such a light source, light from each light emitting element is emitted from the opening and mixed with each other to form a full-color light source.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、各発光
素子からの光は固有の配光特性（配光角）により外部放
射されるため、光源から十分に遠い位置においては各発
光素子からの光は均一に混色されるものの、光源に近い
位置においては配光角の小さな発光素子からの光が他の
発光素子からの光と十分に混色されない領域が存在し、
色バランスの不均一化を生ずるという問題があった。具
体的には汎用的な赤色発光素子の配光角は他色の発光素
子の配光角よりも小さく、光源に近い位置において赤色
成分比が小さい領域が生じるという問題があった。また
一方、新たな光学部品を備えるなどすることによりその
矯正は可能であるが、部品点数が増すことや製造工程が
煩雑になることが問題となる。本発明は、以上の課題に
鑑みなされたものであり、光源に近い位置においても色
バランスの不均一化が少ない、より高品質なフルカラー
光源を構成する発光装置を容易な手段で提供することを
目的とする。However, since the light from each light emitting element is radiated outside due to a unique light distribution characteristic (light distribution angle), the light from each light emitting element is not sufficiently distant from the light source. Although the color is uniformly mixed, there is an area where light from the light emitting element having a small light distribution angle is not sufficiently mixed with light from other light emitting elements at a position close to the light source,
There is a problem that the color balance becomes non-uniform. Specifically, the light distribution angle of a general-purpose red light emitting element is smaller than the light distribution angle of a light emitting element of another color, and there is a problem that a region having a small red component ratio is generated at a position close to a light source. On the other hand, the correction can be made by providing a new optical component, but there is a problem that the number of components increases and the manufacturing process becomes complicated. The present invention has been made in view of the above problems, and provides a light emitting device that constitutes a higher-quality full-color light source with easy means, with less non-uniform color balance even at a position close to the light source. Aim.

【０００４】[0004]

【課題を解決するための手段】本発明は上記目的を達成
すべくなされたものであり、その構成は次の通りであ
る。特性の異なる複数の発光素子と、前記発光素子が開
口部に配置される支持体と、前記開口部に充填される光
透過性材料からなる封止部材と、前記発光素子の少なく
とも一つの配光角を変える手段と、を備えてなる発光装
置。SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and has the following structure. A plurality of light-emitting elements having different characteristics; a support in which the light-emitting elements are arranged in an opening; a sealing member made of a light-transmitting material filled in the opening; and at least one light distribution of the light-emitting elements A light emitting device comprising: means for changing an angle.

【０００５】このような構成の発光装置によれば、発光
素子の配光角を変える手段により配光角の狭い発光素子
の配光角が広げられる。即ち、配光角の狭い発光素子の
配光角が他の発光素子の配光角に近づけられ、発光素子
間の配光角の差が緩和される。その結果、光源の近傍に
おいて配光角の狭い発光素子からの光成分が不足するこ
とが防止される。即ち、光源の近傍においても各発光素
子からの光がより均一に混色され、高品質の発光装置と
なる。また、このような構成によれば、部品点数が増す
こともなく、製造も容易である。また、配光角の大きな
発光素子の配光角を小さくすることもできる。これによ
っても発光素子間の配光角の差を緩和することができ、
色バランスの均一化が図られる。According to the light emitting device having such a configuration, the light distribution angle of the light emitting element having a narrow light distribution angle is widened by the means for changing the light distribution angle of the light emitting element. That is, the light distribution angle of a light emitting element having a narrow light distribution angle is made closer to the light distribution angle of another light emitting element, and the difference in light distribution angle between the light emitting elements is reduced. As a result, shortage of light components from the light emitting element having a narrow light distribution angle in the vicinity of the light source is prevented. That is, even from the vicinity of the light source, light from each light emitting element is mixed more uniformly, and a high quality light emitting device is obtained. Further, according to such a configuration, the number of components does not increase and the manufacture is easy. Further, the light distribution angle of a light emitting element having a large light distribution angle can be reduced. This can also reduce the difference in light distribution angle between the light emitting elements,
Uniform color balance is achieved.

【０００６】[0006]

【発明の実施の形態】特性の異なる少なくとも二種の発
光素子が組み合わされて用いられる。ここで、特性に
は、発光素子の発光スペクトル特性（発光色）及び配光
特性（配光角）が含まれる。例えば、異なる発光色の発
光素子を二つ組み合わせて用いる。好ましくは、赤色
系、緑色系、青色系の発光素子を少なくとも各一個用い
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS At least two types of light emitting elements having different characteristics are used in combination. Here, the characteristics include an emission spectrum characteristic (emission color) and a light distribution characteristic (light distribution angle) of the light emitting element. For example, two light-emitting elements of different emission colors are used in combination. Preferably, at least one red, green, or blue light emitting element is used.

【０００７】現在入手可能な発光素子の特性において
は、青色発光素子の発光出力に対して緑色発光素子と赤
色発光素子の発光出力が劣っているため、緑色発光素子
と赤色発光素子の数よりも青色発光素子の数を多くする
ことが好ましい。これにより、各発光素子を高い出力で
発光でき、効率良く稼働することができる。一方、小型
化の要請を考慮すれば、青色発光素子の数を１とし緑色
発光素子及び赤色発光素子の数をそれぞれ２とすること
が好ましい。また、この場合、各発光素子は青色発光素
子を中心として緑色発光素子と赤色発光素子はそれぞれ
対象となるように配置されることが好ましい。即ち、青
色発光素子、緑色発光素子、及び赤色発光素子をそれぞ
れＢ、Ｇ、及びＲと表記すると、次の配列が好ましい。 （配列パターン１） Ｇ−Ｒ−Ｂ−Ｒ−Ｇ （配列パターン２） Ｒ−Ｇ−Ｂ−Ｇ−Ｒ この中でも、配列パターン１が更に好ましい。汎用的な
青色発光素子と緑色発光素子とはそれぞれその上面に正
負両極が設けられているのに対し、汎用的な赤色発光素
子ではその上面に一方の電極のみが設けられている。ワ
イヤーボンディングの作業性更にはワイヤーの混線を避
けて各発光素子をより近づけて配置することを考慮する
と、電極数の少ない赤色発光素子をより中央側に配置す
ることが好ましいからである。In the characteristics of currently available light emitting elements, the light emitting outputs of the green light emitting element and the red light emitting element are inferior to the light emitting output of the blue light emitting element. It is preferable to increase the number of blue light emitting elements. Thereby, each light emitting element can emit light with a high output, and can operate efficiently. On the other hand, in consideration of the demand for miniaturization, it is preferable that the number of blue light emitting elements is one and the numbers of green light emitting elements and red light emitting elements are two. Further, in this case, it is preferable that the respective light emitting elements are arranged so that the green light emitting element and the red light emitting element are respectively targeted with the blue light emitting element as a center. That is, when the blue light emitting element, the green light emitting element, and the red light emitting element are represented as B, G, and R, respectively, the following arrangement is preferable. (Sequence pattern 1) GRBRG (Sequence pattern 2) RGBGBR Among these, Sequence pattern 1 is more preferable. The general-purpose blue light-emitting element and the green light-emitting element each have positive and negative electrodes on the upper surface thereof, whereas the general-purpose red light-emitting element has only one electrode on the upper surface. This is because it is preferable to arrange the red light emitting element having a small number of electrodes closer to the center in consideration of the workability of wire bonding and the fact that the light emitting elements are arranged closer to each other while avoiding wire mixing.

【０００８】ワイヤーボンディング作業の容易性等から
次の発光素子の配列を採ることもできる。 （配列パターン３） Ｒ−Ｒ−Ｂ−Ｇ−Ｇ 尚、高出力ないし広範囲での発光が要求される場合に
は、複数個の青色発光素子が用いられ、これに応じて緑
色及び赤色発光素子の数も増加される。The following arrangement of light-emitting elements can be adopted for ease of wire bonding work. (Arrangement pattern 3) R-R-B-G-G G When a high output or a wide range of light emission is required, a plurality of blue light-emitting elements are used, and green and red light-emitting elements are accordingly used. Is also increased.

【０００９】各発光素子は、支持体に設けられた開口部
に配置される。例えば、各発光素子を基板にマウント
し、当該基板の発光素子がマウントされる領域を囲う枠
を設けて開口部を形成する。また、凹部を有する基板の
当該凹部に各発光素子をマウントする構成を採用しても
よい。開口部は発光素子ごとに設けることができる。ま
た、複数の発光素子に対して一の開口部を設けてもよ
い。さらには、全ての発光素子に対して一の開口部を設
けてもよい。Each light emitting element is arranged in an opening provided in the support. For example, each light-emitting element is mounted on a substrate, and an opening is formed by providing a frame surrounding a region of the substrate where the light-emitting element is mounted. Further, a configuration may be adopted in which each light emitting element is mounted in the concave portion of the substrate having the concave portion. The opening can be provided for each light emitting element. Further, one opening may be provided for a plurality of light emitting elements. Further, one opening may be provided for all the light emitting elements.

【００１０】支持体の開口部には光透過性材料からなる
封止部材が充填される。封止部材としては光透過性であ
れば特にその材質は限定されず、例えば、エポキシ樹
脂、尿素樹脂、シリコーン樹脂等を用いることができ
る。The opening of the support is filled with a sealing member made of a light transmitting material. The material of the sealing member is not particularly limited as long as it is light-transmitting. For example, an epoxy resin, a urea resin, a silicone resin, or the like can be used.

【００１１】発光素子の少なくとも一つにはその配光角
を変える手段が備えられる。かかる手段は封止部材によ
り構成される。即ち、封止部材は、少なくとも一の発光
素子からの光が透過する部分においてその表面が平坦で
はなく、凹レンズ状又は凸レンズ状となるように形成さ
れる。換言すれば、配光角を変化させることが望まれる
発光素子からの光が透過する部分において封止部材にレ
ンズ効果が奏されるようにする。例えば、支持体の開口
部に発光素子を配置し、開口部の容積より少ない量の封
止部材を開口部に充填して発光素子を封止する。この場
合、封止部材の表面張力により、支持体壁面と接触する
付近の封止部材表面は平坦とならず、支持体壁面に沿っ
て上方に引っ張られる。その結果、封止部材表面は縁部
から中央部に向かってくぼんだ形状、即ち、凹レンズ状
となる。これとは逆に開口部の容積より多い量の封止部
材により発光素子を封止すれば、開口部よりはみ出した
封止部材の表面はその表面張力により、凸レンズ状とな
る。このように、封止部材の量を調整するという簡易な
方法により、選択的に凹レンズ効果又は凸レンズ効果を
付与することができる。At least one of the light emitting elements is provided with a means for changing the light distribution angle. Such means is constituted by a sealing member. That is, the sealing member is formed such that the surface thereof is not flat at a portion where light from at least one light emitting element is transmitted, but has a concave lens shape or a convex lens shape. In other words, a lens effect is exerted on the sealing member in a portion where light from the light emitting element for which it is desired to change the light distribution angle is transmitted. For example, a light-emitting element is arranged in an opening of a support, and a smaller amount of a sealing member than the volume of the opening is filled in the opening to seal the light-emitting element. In this case, due to the surface tension of the sealing member, the surface of the sealing member near the contact with the support wall surface is not flattened, but is pulled upward along the support wall surface. As a result, the surface of the sealing member has a concave shape from the edge toward the center, that is, a concave lens shape. Conversely, if the light emitting element is sealed with a larger amount of sealing member than the volume of the opening, the surface of the sealing member protruding from the opening becomes a convex lens shape due to the surface tension. As described above, the concave lens effect or the convex lens effect can be selectively provided by the simple method of adjusting the amount of the sealing member.

【００１２】好ましくは、配光角の狭い発光素子からの
光が透過する部分における封止部材表面を凹レンズ状と
する。これにより、当該発光素子の配光角が広められ、
他の発光素子の配光角との差が緩和される。また、配光
角の広い発光素子からの光が透過する部分における封止
部材表面を凸レンズ状とすることにより、当該発光素子
の配光角が狭められることとなり、発光素子間の配光角
の差が緩和される。Preferably, the surface of the sealing member at the portion where light from the light emitting element having a narrow light distribution angle is transmitted has a concave lens shape. Thereby, the light distribution angle of the light emitting element is widened,
The difference from the light distribution angles of the other light emitting elements is reduced. In addition, by forming the surface of the sealing member in a convex lens shape in a portion where light from a light emitting element having a wide light distribution angle is transmitted, the light distribution angle of the light emitting element is reduced, and the light distribution angle between the light emitting elements is reduced. The difference is mitigated.

【００１３】上記の封止部材の表面張力によるレンズ効
果は、開口部の大きさ（開口幅）によってその程度が異
なる。即ち、開口部が小さい（開口幅が狭い）方がレン
ズ効果は大きい。また、開口部の大きさ（開口幅）があ
る程度大きい場合には、封止部材の支持体壁面と接触す
る付近の張力の影響が無視でき、実質的にレンズ効果を
生じないようになる。従って、配光角を変化させる発光
素子が配置される位置における開口部を小さくし、他
方、その他の発光素子が配置される位置の開口部を実質
的にレンズ効果が生じない大きさとすれば、効果的に発
光素子間の配光角の差が緩和される。The degree of the lens effect due to the surface tension of the sealing member varies depending on the size (opening width) of the opening. That is, the smaller the opening (the smaller the opening width), the greater the lens effect. When the size of the opening (opening width) is large to some extent, the effect of the tension near the contact of the sealing member with the support wall surface can be neglected, and the lens effect does not substantially occur. Therefore, if the opening at the position where the light emitting element for changing the light distribution angle is arranged is reduced, while the opening at the position where the other light emitting element is arranged is set to a size that does not substantially cause the lens effect, The difference in light distribution angle between the light emitting elements is effectively reduced.

【００１４】開口部の大きさ（開口幅）を変化させる方
法の例を以下に記載する。概略視矩形である一の開口部
に複数の発光素子を直線的に配置する場合を例にとれ
ば、配光角を変化させる発光素子が配置される位置にお
ける開口部の幅を狭くする。換言すれば、当該発光素子
と支持体壁面との間隔を狭くする。この場合において、
３個以上の発光素子を配置するときには、最も狭い配光
角を有する発光素子が配置される位置における開口幅の
みを小さくすることもできるが、段階的に開口幅を変え
ることもできる。また、各発光素子ごとに開口部が設け
られる場合には、配光角を変化させる発光素子が配置さ
れる開口部の大きさを小さくする。一の開口部に複数の
発光素子を配置する場合と同様に、段階的に大きさの異
なる開口部を設けることもできる。開口部を複数設ける
場合には、各開口部の配置方法は特に限定されず、例え
ば、直線上に、又は所望の三角形を形成するように各開
口部を並べる。また、複数の発光素子に対して配光角を
変える手段を備えることもできる。その場合には、凹レ
ンズ効果及び凸レンズ効果を任意に組み合わせて用いる
ことができる。即ち、配光角の狭い発光素子に対しては
凹レンズ効果により配光角を広くし、配光角の広い発光
素子に対しては凸レンズ効果により配光角を狭くする。
このようにすれば、効果的に発光素子間の配光角の差が
緩和される。An example of a method for changing the size (opening width) of the opening will be described below. For example, in the case where a plurality of light emitting elements are linearly arranged in one opening that is a rectangle in a schematic view, the width of the opening at the position where the light emitting element that changes the light distribution angle is arranged is reduced. In other words, the distance between the light emitting element and the wall surface of the support is reduced. In this case,
When three or more light emitting elements are arranged, only the opening width at the position where the light emitting element having the narrowest light distribution angle is arranged can be reduced, but the opening width can also be changed stepwise. When an opening is provided for each light emitting element, the size of the opening where the light emitting element for changing the light distribution angle is arranged is reduced. As in the case where a plurality of light emitting elements are arranged in one opening, openings having different sizes can be provided stepwise. When a plurality of openings are provided, the method of arranging the openings is not particularly limited. For example, the openings are arranged on a straight line or so as to form a desired triangle. Further, means for changing the light distribution angle for a plurality of light emitting elements can be provided. In that case, the concave lens effect and the convex lens effect can be used in any combination. That is, the light distribution angle is widened by the concave lens effect for the light emitting element having a narrow light distribution angle, and the light distribution angle is narrowed by the convex lens effect for the light emitting element having a wide light distribution angle.
By doing so, the difference in the light distribution angle between the light emitting elements is effectively reduced.

【００１５】[0015]

【実施例】以下、実施例により本発明をより詳細に説明
する。 （実施例１）図１は、スキャナー用光源を構成する発光
装置１の平面図である。また、図２は図１におけるＡ−
Ａ線断面図である。発光装置１は筐体１０、開口部２
０、基板３０、赤色発光素子４０、緑色発光素子５０、
青色発光素子６０及び封止部材７０から構成される。筐
体１０は、枠板状であって、基板３０上に設置されるこ
とにより開口部２０を形成する。基板３０には各発光素
子４０、５０、及び６０が直線的に配置される。各発光
素子には汎用的なものを用いた。 尚、筐体１０は白色
の高反射材料により形成されており、基板３０の開口部
２０の面には図示しない反射膜が設けられている。封止
部材７０には一般的なエポキシ樹脂を用いた。所望量の
封止部材７０を開口部２０に滴下させることにより、開
口部２０を樹脂で充填し、各発光素子を封止した。本実
施例では、開口部２０の容積よりも少ない量の封止部材
７０を用いる。The present invention will be described in more detail with reference to the following examples. Embodiment 1 FIG. 1 is a plan view of a light emitting device 1 constituting a light source for a scanner. FIG. 2 is a cross-sectional view of FIG.
FIG. 3 is a sectional view taken along line A. The light emitting device 1 includes a housing 10 and an opening 2
0, substrate 30, red light emitting element 40, green light emitting element 50,
It comprises a blue light emitting element 60 and a sealing member 70. The housing 10 has a frame plate shape, and forms the opening 20 by being installed on the substrate 30. The light emitting elements 40, 50, and 60 are linearly arranged on the substrate 30. A general-purpose light emitting element was used. The housing 10 is formed of a white high-reflection material, and a reflection film (not shown) is provided on the surface of the opening 20 of the substrate 30. A general epoxy resin was used for the sealing member 70. The opening 20 was filled with resin by dropping a desired amount of the sealing member 70 into the opening 20, and each light emitting element was sealed. In this embodiment, a smaller amount of the sealing member 70 than the volume of the opening 20 is used.

【００１６】続いて、図３及び図４を参照しながら、開
口部２０の構成、及び封止部材７０によるレンズ効果に
ついて説明する。図３及び図４は、それぞれ図１におけ
るＢ−Ｂ線断面図及びＣ−Ｃ線断面図である。赤色発光
素子４０が配置される位置における開口部２０の幅ｌ
（図１及び図３を参照）は青色発光素子６０が配置され
る位置における開口部２０の幅Ｌ（図１及び図４を参
照）よりも狭くなるように設計されている。また、緑色
発光素子５０が配置される位置における開口部２０の幅
は図１に示されるように青色発光素子６０のものと同じ
である。尚、開口部２０の形状は任意に設計されるもの
であり、例えば、図５に示される発光装置２のように一
部を曲面とすることもできる。図３に示されるように、
赤色発光素子４０の上方に位置する封止部材７０の表面
は凹レンズ状である。本実施例では、発光素子４０から
およそ４０度の方向に筐体１０の壁面付近における封止
部材７０の張力により盛り上がっている面７１が位置す
るように、開口幅ｌ及び封止部材７０の充填量を設定し
ている。赤色発光素子４０の光は凹レンズ状の封止部材
表面を透過するため、レンズ効果により配光角が広げら
れて外部放射される。尚、開口幅ｌ及び封止部材７０の
充填量は本実施例のものに限定されるものではない。他
方、図４に示されるように、青色発光素子６０の上方に
位置する封止部材７０の表面は、筐体１０の壁面付近７
４では封止部材７０の張力により盛り上がっているもの
のその他の部分においては平坦な面７５を形成する。本
実施例では、発光素子６０からおよそ６０度の方向に筐
体１０の壁面付近における封止部材７０の張力により盛
り上がっている面７４が位置するように、開口幅Ｌ及び
封止部材７０の充填量を設定している。本実施例では、
屈折率１．５の一般的なエポキシ樹脂を封止部材として
用いているが、その臨界角は約４０度であるため、青色
発光素子６０からの光の全ては平坦な面７５を透過して
外部放射される。即ち、青色発光素子６０からの光は赤
色発光素子の様な凹レンズ効果はなく封止部材７０を透
過して外部放出されることとなる。尚、緑色発光素子５
０についても同様であり、固有の配光角の光が凹レンズ
効果はなく外部放射される。Next, the structure of the opening 20 and the lens effect of the sealing member 70 will be described with reference to FIGS. 3 and 4 are a cross-sectional view taken along line BB and a line CC, respectively, in FIG. Width l of opening 20 at the position where red light emitting element 40 is arranged
1 (see FIGS. 1 and 3) is designed to be narrower than the width L (see FIGS. 1 and 4) of the opening 20 at the position where the blue light emitting element 60 is arranged. Further, the width of the opening 20 at the position where the green light emitting element 50 is arranged is the same as that of the blue light emitting element 60 as shown in FIG. The shape of the opening 20 is arbitrarily designed. For example, a part of the opening 20 may be a curved surface as in the light emitting device 2 shown in FIG. As shown in FIG.
The surface of the sealing member 70 located above the red light emitting element 40 has a concave lens shape. In the present embodiment, the opening width l and the filling of the sealing member 70 are set so that the surface 71 raised by the tension of the sealing member 70 near the wall surface of the housing 10 is positioned in the direction of about 40 degrees from the light emitting element 40. You have set the amount. Since the light of the red light-emitting element 40 passes through the surface of the concave lens-shaped sealing member, the light distribution angle is widened by the lens effect and emitted outside. The opening width 1 and the filling amount of the sealing member 70 are not limited to those of the present embodiment. On the other hand, as shown in FIG. 4, the surface of the sealing member 70 located above the blue light emitting element
In No. 4, a flat surface 75 is formed in other portions although it is raised by the tension of the sealing member 70. In the present embodiment, the opening width L and the filling of the sealing member 70 are set so that the surface 74 raised by the tension of the sealing member 70 near the wall surface of the housing 10 is located in a direction approximately 60 degrees from the light emitting element 60. You have set the amount. In this embodiment,
Although a general epoxy resin having a refractive index of 1.5 is used as the sealing member, since the critical angle is about 40 degrees, all the light from the blue light emitting element 60 is transmitted through the flat surface 75. Radiated outside. That is, the light from the blue light emitting element 60 does not have the concave lens effect unlike the red light emitting element, and is transmitted to the outside through the sealing member 70. The green light emitting element 5
The same applies to 0, and light having a specific light distribution angle is radiated outside without a concave lens effect.

【００１７】以上のように、本実施例の発光装置１で
は、配光角の狭い赤色発光素子４０の配光角が封止部材
７０表面のレンズ効果により広げられる。これにより、
赤色発光素子からの光がより広範囲に拡散されることと
なる。もって、発光装置１の近傍において、各発光素子
からの光をより均一に混色させることが可能となる。As described above, in the light emitting device 1 of this embodiment, the light distribution angle of the red light emitting element 40 having a narrow light distribution angle is widened by the lens effect on the surface of the sealing member 70. This allows
The light from the red light emitting element is diffused over a wider range. Thus, in the vicinity of the light emitting device 1, it is possible to mix the light from each light emitting element more uniformly.

【００１８】（第２実施例）図６は、異なる形状の開口
部１３０を有する発光装置３の平面図である。発光装置
３は上記発光装置１と同様にスキャナー用光源に用いら
れるものである。尚、発光装置３と同一の部材には同一
の符号を付してその説明を省略する。発光装置３では、
それぞれ配光角の異なる３種の発光素子が用いられる。
ここで用いられる各発光素子の配光特性は、赤色発光素
子１４０、緑色発光素子１５０、青色発光素子１６０の
順で配向角が狭い特性である。(Second Embodiment) FIG. 6 is a plan view of a light emitting device 3 having openings 130 of different shapes. The light emitting device 3 is used as a light source for a scanner similarly to the light emitting device 1 described above. Note that the same members as those of the light emitting device 3 are denoted by the same reference numerals, and description thereof will be omitted. In the light emitting device 3,
Three types of light emitting elements having different light distribution angles are used.
The light distribution characteristics of each light emitting element used here are such that the red light emitting element 140, the green light emitting element 150, and the blue light emitting element 160 have narrow orientation angles in this order.

【００１９】図示されるように、開口部１３０はその間
隔が段階的に変化するように形成されている。即ち、最
も配光角の狭い発光素子１４０が配置される位置におけ
る開口部幅が最も狭く、最も配光角の広い発光素子１６
０が配置される位置における開口部幅が最も広い。開口
部１３０には、発光装置１の場合と同様に、その容積よ
りも少ない量の封止部材１７０が充填される。これによ
り、発光素子１４０の上方の封止部材１７０表面は凹レ
ンズ状にくぼみ、レンズ効果を奏する。同様に、発光素
子１５０の上方の封止部材１７０表面もレンズ効果を奏
するが、上述のように封止部材の表面張力に起因するレ
ンズ効果は開口部の大きさ（開口部幅）が大きくなる程
に小さくなるため、発光素子１５０の上方の封止部材１
７０によるレンズ効果は発光素子１４０の場合に比して
小さい。即ち、封止部材１７０の表面のレンズ効果によ
り発光素子１５０の配光角は広げられるものの、その程
度は発光素子１４０の場合程ではない。このように、発
光装置３では発光素子の配光角に応じてレンズ効果が奏
されるように開口部の形状が設計されており、各発光素
子の配光角が異なる場合であっても、それぞれの配光角
の差が緩和される。As shown in the drawing, the openings 130 are formed such that the intervals thereof change stepwise. In other words, the light emitting element 16 having the narrowest opening width at the position where the light emitting element 140 having the narrowest light distribution angle is disposed and having the widest light distribution angle.
The opening width at the position where 0 is arranged is the widest. As in the case of the light emitting device 1, the opening 130 is filled with a smaller amount of the sealing member 170 than its volume. As a result, the surface of the sealing member 170 above the light emitting element 140 is depressed into a concave lens shape, and exhibits a lens effect. Similarly, the surface of the sealing member 170 above the light emitting element 150 also has a lens effect. However, as described above, the lens effect caused by the surface tension of the sealing member increases the size of the opening (opening width). The sealing member 1 above the light emitting element 150.
The lens effect of 70 is smaller than that of the light emitting element 140. That is, the light distribution angle of the light emitting element 150 can be widened by the lens effect on the surface of the sealing member 170, but the degree is not as large as that of the light emitting element 140. As described above, in the light emitting device 3, the shape of the opening is designed so that the lens effect is produced according to the light distribution angle of the light emitting element, and even when the light distribution angle of each light emitting element is different, The difference between the light distribution angles is reduced.

【００２０】（第３実施例）図７に示される発光装置４
では、発光素子ごとに大きさの異なる平面視円形の開口
部２０４、２０５、及び２０６が設けられる。筐体１０
２において各開口部の位置は特に限定されないが、光源
の小型化の要請、及び各発光素子からの光の混色を考慮
すれば近接して設けられることが好ましい。尚、上記実
施例の発光装置３と同一の部材には同一の符号を付して
その説明を省略する。各開口部には、その容積よりも少
ない量の封止部材１７４、１７５、及び１７６がそれぞ
れ充填されている。これにより、発光素子１４０が配置
される開口部２０４に充填される封止部材１７４の表面
は凹レンズ状になり、発光素子１４０からの光は配光角
が広げられて外部放射される。また、発光素子１５０が
配置される開口部２０４を充填する封止部材の表面も凹
レンズ状になり、発光素子１５０からの光の配光角を広
げる。しかしながら、上述のように開口部の大きさ（開
口幅）が小さいほど封止部材の表面張力に起因するレン
ズ効果は大きくなるため、発光素子１５０の上方の封止
部材１７５によるレンズ効果は発光素子１４０の場合に
比して小さい。即ち、封止部材１７５の表面のレンズ効
果により発光素子１５０の配光角は広げられるものの、
その程度は発光素子１４０の場合程ではない。このよう
に、発光装置４では各発光素子の配光角に応じてレンズ
効果が奏されるように各開口部の形状が設計されてお
り、それぞれの配光角の差が緩和される。(Third Embodiment) A light emitting device 4 shown in FIG.
In this embodiment, circular openings 204, 205, and 206 each having a different size in plan view are provided for each light emitting element. Case 10
In 2, the position of each opening is not particularly limited, but is preferably provided in close proximity in consideration of a demand for miniaturization of a light source and color mixing of light from each light emitting element. Note that the same members as those of the light emitting device 3 of the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. Each opening is filled with a smaller amount of sealing members 174, 175, and 176, respectively, than its volume. Accordingly, the surface of the sealing member 174 filled in the opening 204 in which the light emitting element 140 is disposed has a concave lens shape, and the light from the light emitting element 140 has a wider light distribution angle and is emitted to the outside. In addition, the surface of the sealing member filling the opening 204 where the light emitting element 150 is arranged also has a concave lens shape, and the light distribution angle of light from the light emitting element 150 is widened. However, as described above, since the lens effect due to the surface tension of the sealing member increases as the size of the opening (opening width) decreases, the lens effect of the sealing member 175 above the light emitting element 150 decreases. It is smaller than 140. That is, although the light distribution angle of the light emitting element 150 can be widened by the lens effect on the surface of the sealing member 175,
The degree is not as large as that of the light emitting element 140. As described above, in the light emitting device 4, the shape of each opening is designed so that a lens effect is produced according to the light distribution angle of each light emitting element, and the difference between the respective light distribution angles is reduced.

【００２１】発光装置４では発光素子ごとに開口部を設
けたが、複数の発光素子を一の開口部に設置することも
できる。例えば、二つの開口部を設け、一の開口部に配
光角の狭い発光素子を一個配置し、他の開口部には配光
角が広い発光素子を複数個配置する。かかる構成によれ
ば、開口部の数を減少でき、高密度で発光素子を配置す
ることができる。その結果、発光装置全体の小型化かつ
高出力化が図れる。In the light emitting device 4, an opening is provided for each light emitting element. However, a plurality of light emitting elements can be provided in one opening. For example, two openings are provided, one light emitting element having a narrow light distribution angle is arranged in one opening, and a plurality of light emitting elements having a wide light distribution angle are arranged in the other opening. According to such a configuration, the number of openings can be reduced, and light emitting elements can be arranged at a high density. As a result, the size and output of the entire light emitting device can be reduced.

【００２２】尚、上記いずれの実施例においても赤色、
緑色、及び青色の発光素子を各一個用いた発光装置を説
明したが、発光素子の数及び種類はこれに限定されず、
各色の発光素子を複数個組み合わせて用いることができ
る。また、図８の発光装置５のように異なる色の発光素
子を二つ用いて発光装置を構成することもできる。図８
において、符号１００、１８０、１９０、及び２００
は、それぞれ筐体、開口部、黄色発光素子及び青色発光
素子である。In each of the above embodiments, red,
Although the light-emitting device using one light-emitting element for green and one for blue has been described, the number and type of light-emitting elements are not limited thereto.
A plurality of light emitting elements of each color can be used in combination. Further, as in the light emitting device 5 in FIG. 8, the light emitting device can be configured by using two light emitting elements of different colors. FIG.
At 100, 180, 190, and 200
Are a housing, an opening, a yellow light emitting element, and a blue light emitting element, respectively.

【００２３】（第４実施例）図９は他の実施例である発
光装置６の平面図及びＤ−Ｄ線断面図である。実施例１
の発光装置１と同一の部材には同一の符号を付してあ
る。発光装置６の封止部材３００の発光素子４０の上方
部分３１０は凹レンズ状に形成されている。発光装置６
の封止部材３００は型成形により形成される。即ち、所
望の形状の型容器にエポキシ樹脂を注入し、そこへ発光
素子４０、５０及び６０をマウントした基板３０を発光
素子が封止される位置まで埋設する。エポキシ樹脂を硬
化させた後、脱型し、所望の形状の封止部材３００を得
る。このように、発光装置６では封止部材３００を囲う
筐体が用いられない。側面からの光の漏洩を防止し、発
光効率を高める目的で封止部材３００の側面には反射層
３２０が設けられる。もちろん反射層３２０を設けない
構成とすることもできる。封止部材３００の周囲に筐体
ないし支持体を設けることもできる。その場合の構成を
図１０に示す。図１０の発光装置７においては封止部材
３００の一の面側に支持体３３０が設けられている。同
様に封止部材の他の面側にも支持体を設ける構成を採用
することができることは言うまでもない。(Fourth Embodiment) FIG. 9 is a plan view and a sectional view taken along line DD of a light emitting device 6 according to another embodiment. Example 1
The same members as those of the light emitting device 1 are denoted by the same reference numerals. The upper portion 310 of the light emitting element 40 of the sealing member 300 of the light emitting device 6 is formed in a concave lens shape. Light emitting device 6
The sealing member 300 is formed by molding. That is, an epoxy resin is injected into a mold container having a desired shape, and the substrate 30 on which the light emitting elements 40, 50, and 60 are mounted is buried therein until the light emitting element is sealed. After the epoxy resin is cured, it is released from the mold to obtain a sealing member 300 having a desired shape. As described above, the light emitting device 6 does not use the housing surrounding the sealing member 300. A reflection layer 320 is provided on the side surface of the sealing member 300 for the purpose of preventing light from leaking from the side surface and increasing luminous efficiency. Needless to say, a structure without the reflective layer 320 may be employed. A housing or a support may be provided around the sealing member 300. FIG. 10 shows the configuration in that case. In the light emitting device 7 of FIG. 10, a support 330 is provided on one surface side of the sealing member 300. Similarly, it goes without saying that a configuration in which a support is provided on the other surface side of the sealing member can also be employed.

【００２４】（第５実施例）図１１は他の実施例である
スキャナー用光源を構成する発光装置８の平面図及びＥ
−Ｅ線断面図である。発光装置８ではＳＭＤ（表面実
装）タイプのＬＥＤ装置が用いられる。以下、図を参照
しながら発光装置８の構成を説明する。尚、上記実施例
の発光装置と同一の部材には同一の符号を付してその説
明を省略する。発光装置８では、基板１１０に赤色ＬＥ
Ｄ装置４００、緑色ＬＥＤ装置５００及び青色ＬＥＤ装
置６００が配置される。各ＬＥＤ装置には光の放出方向
に透明樹脂からなる封止部材４１０、５１０及び６１０
がそれぞれ設けられる。透明樹脂としてはエポキシ樹
脂、尿素樹脂、シリコン樹脂等が用いられる。(Fifth Embodiment) FIG. 11 is a plan view of a light emitting device 8 constituting a light source for a scanner according to another embodiment, and FIG.
FIG. 4 is a sectional view taken along line -E. In the light emitting device 8, an SMD (Surface Mount) type LED device is used. Hereinafter, the configuration of the light emitting device 8 will be described with reference to the drawings. Note that the same members as those of the light emitting device of the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. In the light emitting device 8, the substrate 110 has a red LE
The D device 400, the green LED device 500, and the blue LED device 600 are arranged. Each of the LED devices has a sealing member 410, 510 and 610 made of a transparent resin in the light emission direction.
Are respectively provided. Epoxy resin, urea resin, silicon resin, etc. are used as the transparent resin.

【００２５】Ｅ―Ｅ線断面図を参照して各ＬＥＤ装置に
おける各封止部材の構成を説明する。各ＬＥＤ装置の封
止部材４１０、５１０及び６１０はそれぞれ各発光素子
４０、５０及び６０を被覆して形成されるが、赤色ＬＥ
Ｄ装置４００の封止部材５１０は他色のＬＥＤ装置の封
止部材よりも狭い領域を被覆する。即ち、断面図に示さ
れるように、封止部材４１０の両端間の距離Ｌ４０はＬ
５０及びＬ６０に比較して長く、封止部材４１０の表面
は凹レンズ状となる。これにより、赤色ＬＥＤ装置４０
０の配光角が広げられ、赤色ＬＥＤ装置からの光がより
広範囲に拡散されることとなる。もって、発光装置１の
近傍において、各ＬＥＤ装置からの光をより均一に混色
させることが可能となる。図中符号４１１、５１１及び
６１１は各ＬＥＤ装置の封止部材の側面に設けられる反
射層であって、各ＬＥＤ装置の光が横方向へ漏洩される
のを防止する。反射層４１１、５１１及び６１１の周囲
に筐体ないし支持体を設けることができる。また、反射
層を設けず、封止部材４１０、５１０及び６１０の周囲
に直接筐体等を設けることもできる。この場合には筐体
等を白色の高反射材料により形成することが好ましい。
尚、基板１１０の上に所望の配線パターンを施し、発光
素子４０、５０及び６０を直接マウントし、その後、封
止部材４１０、５１０及び６１０をそれぞれ形成する構
成を採用することもできる。The configuration of each sealing member in each LED device will be described with reference to a cross-sectional view taken along line EE. The sealing members 410, 510 and 610 of each LED device are formed to cover the respective light emitting elements 40, 50 and 60, respectively.
The sealing member 510 of the D device 400 covers a smaller area than the sealing members of the LED devices of other colors. That is, as shown in the cross-sectional view, the distance L40 between both ends of the sealing member 410 is L
Longer than 50 and L60, the surface of the sealing member 410 has a concave lens shape. Thereby, the red LED device 40
The light distribution angle of 0 is widened, and the light from the red LED device is diffused more widely. Accordingly, in the vicinity of the light emitting device 1, it is possible to mix the light from each LED device more uniformly. In the figure, reference numerals 411, 511 and 611 are reflection layers provided on the side surfaces of the sealing member of each LED device, and prevent the light of each LED device from leaking in the lateral direction. A housing or a support can be provided around the reflective layers 411, 511, and 611. Alternatively, a housing or the like can be provided directly around the sealing members 410, 510, and 610 without providing a reflective layer. In this case, it is preferable that the housing and the like be formed of a white highly reflective material.
It is also possible to adopt a configuration in which a desired wiring pattern is formed on the substrate 110, the light emitting elements 40, 50, and 60 are directly mounted, and then the sealing members 410, 510, and 610 are formed.

【００２６】本実施例では各色のＬＥＤチップ各一個を
基板１１０に配置したが、ＬＥＤチップの数及び種類は
これに限定されず、各色のＬＥＤを複数個組み合わせて
用いることができる。また、二色のＬＥＤチップのみを
用いて発光装置を構成することもできる。各色のＬＥＤ
の配置方法も実施例のものに限定されるわけではなく、
任意の配置方法を採用することができる。In this embodiment, one LED chip of each color is arranged on the substrate 110, but the number and type of LED chips are not limited to this, and a plurality of LEDs of each color can be used in combination. Further, a light-emitting device can be configured using only two-color LED chips. LED of each color
The arrangement method of is not limited to the example,
Any arrangement method can be adopted.

【００２７】この発明は、上記発明の実施の形態及び実
施例の説明に何ら限定されるものではない。本発明の発
光装置は、実施例に示したスキャナー用の光源の他、Ｌ
ＥＤ表示装置、信号機、線状光源、面上光源、色変換フ
ィルター、ディスプレーのバックライト等の光源として
用いることができる。特許請求の範囲の記載を逸脱せ
ず、当業者が容易に想到できる範囲で種々の変形態様も
この発明に含まれる。The present invention is not limited to the description of the embodiment and the example of the above invention. The light emitting device of the present invention has a light source L
It can be used as a light source such as an ED display device, a traffic light, a linear light source, a surface light source, a color conversion filter, and a display backlight. Various modifications are included in the present invention without departing from the scope of the claims and within the scope of those skilled in the art.

【００２８】以下、次の事項を開示する。 （１０） 特性の異なる複数の発光素子と、前記発光素
子をマウントする基板と、前記発光素子が配置される開
口部を有する支持体と、前記支持体の前記開口部に充填
される光透過性材料からなる封止部材と、を備え、前記
封止部材の充填量が前記開口部の容積未満であって、配
光角が狭い前記発光素子と前記支持体との間隔が、配光
角が広い前記発光素子と前記支持体との間隔よりも狭く
され、前記封止部材の前記支持体付近の張力に起因する
盛り上がりによる屈折効果により、前記複数の発光素子
の配光角の差を緩和させている、ことを特徴とする発光
装置。 （１１） 特性の異なる複数の発光素子と、前記発光素
子をマウントする基板と、前記発光素子が配置される開
口部を有する支持体と、前記支持体の前記開口部に充填
される光透過性材料からなる封止部材と、を備え、前記
封止部材の充填量が前記開口部の容積より多く、配光角
が広い前記発光素子と前記支持体との間隔が、配光角が
広い前記発光素子と前記支持体との間隔よりも狭くさ
れ、前記封止部材の前記支持体付近の張力に起因する盛
り上がりによる屈折効果により、前記複数の発光素子の
配光角の差を緩和させている、ことを特徴とする発光装
置。 （１２） 前記発光素子は赤色系、緑色系、及び青色系
発光素子を含む、ことを特徴とする（１０）又は（１
１）に記載の発光装置。 （１３） 前記支持体の前記開口部は前記発光素子ごと
に一つ形成される、ことを特徴とする（１０）〜（１
２）のいずれかに記載の発光装置。 （１４） 前記支持体の前記開口部は前記発光素子の複
数個又は全てに対して一つ形成される、ことを特徴とす
る（１０）〜（１３）のいずれかに記載の発光装置。 （２０） 請求項１〜９又は（１０）〜（１４）のいず
れかに記載の発光装置と、導光体と、を備えてなる光
源。Hereinafter, the following items will be disclosed. (10) A plurality of light-emitting elements having different characteristics, a substrate on which the light-emitting element is mounted, a support having an opening in which the light-emitting element is arranged, and light transmissivity filled in the opening of the support. A sealing member made of a material, wherein the filling amount of the sealing member is less than the volume of the opening, and the light distribution angle between the light emitting element and the support is small, and the light distribution angle is The gap between the wide light emitting element and the support is narrowed, and the difference in the light distribution angle of the plurality of light emitting elements is reduced by a refraction effect due to a bulge caused by a tension near the support of the sealing member. A light-emitting device, comprising: (11) A plurality of light-emitting elements having different characteristics, a substrate on which the light-emitting element is mounted, a support having an opening in which the light-emitting element is arranged, and light transmissivity filled in the opening of the support. A sealing member made of a material, the filling amount of the sealing member is larger than the volume of the opening, the light distribution angle between the light emitting element and the support is large, the light distribution angle is wide. The gap between the light emitting element and the support is narrower, and the difference in the light distribution angles of the plurality of light emitting elements is reduced by a refraction effect due to a bulge caused by tension of the sealing member near the support. And a light emitting device. (12) The light emitting device according to (10) or (1), wherein the light emitting device includes a red light emitting device, a green light emitting device, and a blue light emitting device.
The light emitting device according to 1). (13) The support is provided with one opening for each light emitting element.
The light emitting device according to any one of 2). (14) The light emitting device according to any one of (10) to (13), wherein one of the openings of the support is formed for a plurality or all of the light emitting elements. (20) A light source comprising: the light emitting device according to any one of claims 1 to 9 or (10) to (14); and a light guide.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一の実施例である発光装置１の平面図
である。FIG. 1 is a plan view of a light emitting device 1 according to one embodiment of the present invention.

【図２】同じく図１におけるＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA in FIG.

【図３】同じく図１におけるＢ−Ｂ線断面図である。FIG. 3 is a sectional view taken along the line BB in FIG. 1;

【図４】同じく図１におけるＣ−Ｃ線断面図である。4 is a sectional view taken along line CC in FIG.

【図５】本発明の他の実施例である発光装置２の平面図
である。FIG. 5 is a plan view of a light emitting device 2 according to another embodiment of the present invention.

【図６】本発明の他の実施例である発光装置３の平面図
である。FIG. 6 is a plan view of a light emitting device 3 according to another embodiment of the present invention.

【図７】本発明の他の実施例である発光装置４の平面図
である。FIG. 7 is a plan view of a light emitting device 4 according to another embodiment of the present invention.

【図８】本発明の他の実施例である発光装置５の平面図
である。FIG. 8 is a plan view of a light emitting device 5 according to another embodiment of the present invention.

【図９】本発明の他の実施例である発光装置６の平面図
及びＤ−Ｄ線断面図である。FIG. 9 is a plan view and a sectional view taken along line DD of a light emitting device 6 according to another embodiment of the present invention.

【図１０】本発明の他の実施例である発光装置７の平面
図及びＤ−Ｄ線断面図である。FIG. 10 is a plan view and a sectional view taken along line DD of a light emitting device 7 according to another embodiment of the present invention.

【図１１】本発明の他の実施例である発光装置８の平面
図及びＥ−Ｅ線断面図である。FIG. 11 is a plan view and a cross-sectional view taken along line EE of a light emitting device 8 according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ ２ ３ ４ ５ ６ ７ ８ 発光装置 １０ １００ 筐体 ２０ １２０ １３０ ２０４ ２０５ ２０６ 開口
部 ３０ １１０ 基板 ４０ ５０ ６０ １４０ １５０ １６０ １９０
２００ 発光素子 ７０ １７０ １７４ １７５ １７６ ３００ ４１
０ ５１０ ６１０ 封止部材 ｌ Ｌ 開口部幅 ３２０ ４１１ ５１１ ６１１ 反射層 ３３０ 支持体 ４００ ５００ ６００ ＬＥＤチップ1 2 3 4 5 6 7 8 Light emitting device 10 100 Housing 20 120 130 204 205 205 206 Opening 30 110 Substrate 40 50 60 140 140 150 160 190
200 light emitting element 70 170 174 175 176 300 41
0 510 610 Sealing member 1 L Opening width 320 411 511 611 Reflective layer 330 Support 400 500 600 LED chip

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】 特性の異なる複数の発光素子と、 前記発光素子が開口部に配置される支持体と、 前記開口部に充填される光透過性材料からなる封止部材
と、 前記発光素子の少なくとも一つの配光角を変える手段
と、を備えてなる発光装置。1. A plurality of light-emitting elements having different characteristics; a support in which the light-emitting element is arranged in an opening; a sealing member made of a light-transmitting material filled in the opening; At least one means for changing the light distribution angle. 【請求項２】 前記配光角を変える手段は、前記封止部
材表面の少なくとも一部をレンズ効果を有する形状にす
ることにより構成される、ことを特徴とする請求項１に
記載の発光装置。2. The light emitting device according to claim 1, wherein the means for changing the light distribution angle is configured by forming at least a part of the surface of the sealing member into a shape having a lens effect. . 【請求項３】 配光角の狭い前記発光素子からの光が透
過する部分における前記封止部材の表面形状が凹レンズ
状である、ことを特徴とする請求項２に記載の発光装
置。3. The light emitting device according to claim 2, wherein a surface shape of the sealing member in a portion through which light from the light emitting element having a narrow light distribution angle is transmitted is a concave lens shape. 【請求項４】 配光角の広い前記発光素子からの光が透
過する部分における前記封止部材の表面形状が凸レンズ
状である、ことを特徴とする請求項２又は３に記載の発
光装置。4. The light emitting device according to claim 2, wherein a surface shape of the sealing member in a portion through which light from the light emitting element having a wide light distribution angle is transmitted is a convex lens shape. 【請求項５】 前記配光角の狭い発光素子が配置される
位置における前記支持体の前記開口部は、他の前記発光
素子が配置される位置における前記支持体の前記開口部
より小さい、ことを特徴とする請求項３に記載の発光装
置。5. The opening of the support at a position where the light emitting element having the narrow light distribution angle is arranged is smaller than the opening of the support at a position where another light emitting element is arranged. The light emitting device according to claim 3, wherein: 【請求項６】 前記配光角の広い発光素子が配置される
位置における前記支持体の前記開口部は、他の前記発光
素子が配置される位置における前記支持体の前記開口部
より小さい、ことを特徴とする請求項４に記載の発光装
置。6. The opening of the support at a position where the light emitting element having the wide light distribution angle is arranged is smaller than the opening of the support at a position where another light emitting element is arranged. The light emitting device according to claim 4, wherein: 【請求項７】 前記発光素子は赤色系、緑色系、及び青
色系発光素子を含む、ことを特徴とする請求項１〜６の
いずれかに記載の発光装置。7. The light emitting device according to claim 1, wherein the light emitting elements include red, green, and blue light emitting elements. 【請求項８】 前記支持体の前記開口部は前記発光素子
ごとに一つ形成される、ことを特徴とする請求項１〜７
のいずれかに記載の発光装置。8. The light-emitting device according to claim 1, wherein one of the openings is formed for each of the light-emitting elements.
The light emitting device according to any one of the above. 【請求項９】 前記支持体の前記開口部は前記発光素子
の複数個又は全てに対して一つ形成される、ことを特徴
とする請求項１〜７のいずれかに記載の発光装置。9. The light emitting device according to claim 1, wherein the opening of the support is formed for one or more of the light emitting elements.
JP2000002150A 2000-01-11 2000-01-11 Light emitting device Pending JP2001196637A (en)

Priority Applications (1)

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Publication Number Publication Date
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Family

ID=18531285

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Application Number Title Priority Date Filing Date
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Country Link
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