JP2009302339A - 半導体発光装置 - Google Patents
半導体発光装置 Download PDFInfo
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Abstract
【解決手段】半導体発光装置1において、光出射方向Aeが開口されたリセス21R、22Rを有するパッケージ基体2と、リセス21Rの底部に配設され、互いに発光色が異なる複数の発光素子3と、リセス21R内に複数の発光素子3を覆って配設され、蛍光体が含有された第1の透光性樹脂61と、リセス22R内において第1の透光性樹脂61上に配設され、第1の透光性樹脂61に比べて蛍光体の含有量が少なく、かつ第1の透光性樹脂61の膜厚に比べて厚い膜厚を有する第2の透光性樹脂62とを備える。
【選択図】図1
Description
図1乃至図3に示すように、本発明の一実施の形態に係る半導体発光装置1は、光出射方向Aeが開口されたリセス(21R及び22R)を有するパッケージ基体2と、リセスの底部(第1のリセス21R)に配設され、互いに発光色が異なる複数の発光素子3と、リセス内の底部に複数の発光素子3を覆って配設され、蛍光体が含有された第1の透光性樹脂61と、リセス(第2のリセス22R)内において第1の透光性樹脂61上に配設され、第1の透光性樹脂61に比べて蛍光体の含有量が少なく、かつ第1の透光性樹脂61の膜厚に比べて厚い膜厚を有する第2の透光性樹脂62とを備える。
次に、前述の半導体発光装置1の発光動作は以下の通りである。半導体発光装置1において、リード4及びワイヤ5を通して複数の発光素子3のアノード電極−カソード電極間の通電が開始される。これにより、青色発光素子3Bの発光動作が開始され、青色発光素子3Bから青色光が発せられるとともに、赤色発光素子3Rの発光動作が開始され、赤色発光素子3Rから赤色光が発せられる。
前述の本実施の形態に係る半導体発光装置1の混色性に関する特徴は、以下に実施した実験結果からも明らかである。
上記のように、本発明を一実施の形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものでない。本発明は様々な代替実施の形態、実施例及び運用技術に適用することができる。例えば、前述の実施の形態においては、合計8個の発光素子8を横一列に配列した半導体発光装置1に本発明を適用した例を説明したが、本発明は、これに限定されるものではなく、8個以外の複数個の発光素子を複数列に配列した半導体発光装置1に適用してもよい。
2…パッケージ基体
21…放熱体
21R…第1のリセス
21A…第1の開口
21B…第1の底面
21S…第1の内側面
22…樹脂体
22R…第2のリセス
22A…第2の開口
22B…第2の底面
22S…第2の内側面
3…発光素子
3B…青色発光素子
3R…青色発光素子
4…リード
5…ワイヤ
6…透光性樹脂
61…第1の透光性樹脂
62…第2の透光性樹脂
Claims (6)
- 光出射方向が開口されたリセスを有するパッケージ基体と、
前記リセスの底部に配設され、互いに発光色が異なる複数の発光素子と、
前記リセス内の前記底部に前記複数の発光素子を覆って配設され、蛍光体が含有された第1の透光性樹脂と、
前記リセス内において前記第1の透光性樹脂上に前記開口側に向かって配設され、前記第1の透光性樹脂に比べて蛍光体の含有量が少なく、かつ前記第1の透光性樹脂の膜厚に比べて厚い膜厚を有する第2の透光性樹脂と、
を備えたことを特徴とする半導体発光装置。 - 光出射方向に第1の開口を持つ第1のリセスと、前記第1のリセスの第1の開口に連接され、前記光出射方向に前記第1の開口に比べて開口サイズが大きい第2の開口を持ち、かつ前記第1のリセスの深さよりも深い第2のリセスとを有するパッケージ基体と、
前記第1のリセスの底部に配設され、互いに発光色が異なる複数の発光素子と、
前記複数の発光素子を覆い前記第1のリセス内に充填され、蛍光体が含有された第1の透光性樹脂と、
前記第2のリセス内に充填され、前記第1の透光性樹脂に比べて蛍光体の含有量が少ない第2の透光性樹脂と、
を備えたことを特徴とする半導体発光装置。 - 前記第1のリセスの第1の内側面は、前記第1のリセスの第1の底面に対する第1の内角を鈍角の範囲内に設定し、前記複数の発光素子から発せられる光を前記光出射方向に反射する光反射面として使用され、前記第2のリセスの第2の内側面は、前記第2のリセスの第2の底面に対する第2の内角を前記第1の内角に比べて小さく設定し、前記複数の発光素子から発せられる光を前記光出射方向に対して交差する方向に反射する光拡散面として使用されることを特徴とする請求項2に記載の半導体発光装置。
- 前記第2の透光性樹脂には拡散材が含有されていることを特徴とする請求項1乃至請求項3のいずれかに記載の半導体発光装置。
- 前記複数の発光素子は青色光を発する青色発光素子と赤色光を発する赤色発光素子とを備え、前記蛍光体は、前記青色発光素子から発せられる光を吸収し、その吸収前の光の波長と異なる波長の光を発し、前記青色発光素子から発せられる光の吸収率に対して前記赤色発光素子から発せられる光の吸収率が小さいことを特徴とする請求項1乃至請求項4のいずれかに記載の半導体発光装置。
- 前記パッケージ基体は、前記第1のリセスを有し、熱伝導性を有する放熱体と、前記放熱体に装着され、前記第2のリセスを有し、光反射性を有する樹脂体とを備えていることを特徴とする請求項2乃至請求項5のいずれかに記載の半導体発光装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008155822A JP2009302339A (ja) | 2008-06-13 | 2008-06-13 | 半導体発光装置 |
KR1020090023524A KR101027343B1 (ko) | 2008-06-13 | 2009-03-19 | 반도체 발광장치 |
US12/432,887 US20090309115A1 (en) | 2008-06-13 | 2009-04-30 | Semiconductor light emitting device |
TW098115643A TWI387091B (zh) | 2008-06-13 | 2009-05-12 | 半導體發光裝置 |
CN2009101408089A CN101604687B (zh) | 2008-06-13 | 2009-05-12 | 半导体发光装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2008155822A JP2009302339A (ja) | 2008-06-13 | 2008-06-13 | 半導体発光装置 |
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JP2009302339A true JP2009302339A (ja) | 2009-12-24 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008155822A Pending JP2009302339A (ja) | 2008-06-13 | 2008-06-13 | 半導体発光装置 |
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US (1) | US20090309115A1 (ja) |
JP (1) | JP2009302339A (ja) |
KR (1) | KR101027343B1 (ja) |
CN (1) | CN101604687B (ja) |
TW (1) | TWI387091B (ja) |
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JP2011216868A (ja) * | 2010-03-16 | 2011-10-27 | Toshiba Lighting & Technology Corp | 発光装置及び照明装置 |
JP2012227529A (ja) * | 2011-04-19 | 2012-11-15 | Lg Innotek Co Ltd | 発光素子アレイ |
US8820950B2 (en) | 2010-03-12 | 2014-09-02 | Toshiba Lighting & Technology Corporation | Light emitting device and illumination apparatus |
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JP2011216868A (ja) * | 2010-03-16 | 2011-10-27 | Toshiba Lighting & Technology Corp | 発光装置及び照明装置 |
JP2012227529A (ja) * | 2011-04-19 | 2012-11-15 | Lg Innotek Co Ltd | 発光素子アレイ |
Also Published As
Publication number | Publication date |
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KR101027343B1 (ko) | 2011-04-11 |
KR20090129933A (ko) | 2009-12-17 |
CN101604687A (zh) | 2009-12-16 |
TW200952154A (en) | 2009-12-16 |
US20090309115A1 (en) | 2009-12-17 |
CN101604687B (zh) | 2011-07-27 |
TWI387091B (zh) | 2013-02-21 |
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