JP2011505450A - 散乱度が小さいled用セラミック材料及びその製造方法 - Google Patents
散乱度が小さいled用セラミック材料及びその製造方法 Download PDFInfo
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Abstract
Description
‐発見された光学的散乱は、発光素子の変換効率を促進する。というのは、散乱により、吸収損失が生じる場合があるからである。
‐発見された光学的散乱は、変換光と透過非変換光の混合を促進し、高いパッケージ効率をもたらす。
本発明の好ましい実施形態によれば、セラミック変換材料は、その成分としての結晶子粒の好ましい配向を呈し、この配向は、そのテキスチャとして定義される。
〔化1〕
Sr1‐y‐zMySi2O2N2:Euz
で表され、上式において、Mは、Ca、Ba、Mg又はこれらの混合物を含む群から選択され、yは、0以上且つ1以下、zは、0.0001以上且つ0.5以下である。
‐この材料の安定性は、通常、先行技術の材料と比較して改善されている。この材料は、通常、非常に高い熱的安定性、特に光熱的安定性を示す。
‐この材料のスペクトルは、通常、かなり鮮明であり、かくして、本発明の多くの利用範囲での使用が可能である。
‐オフィス照明システム、
‐住宅用途システム、
‐店舗照明システム、
‐家庭照明システム、
‐アクセント照明システム、
‐スポット照明システム、
‐劇場照明システム、
‐光ファイバ用途システム、
‐投射システム、
‐自己照明ディスプレイシステム、
‐ピクセル化ディスプレイシステム、
‐セグメント化ディスプレイシステム、
‐警戒標識システム、
‐医用照明用途システム、
‐表示看板システム、
‐装飾照明システム、
‐携帯型システム、
‐自動車用途、
‐温室照明システムのうちの1つ又は2つ以上に利用できる。
Claims (10)
- 発光素子、特にLED用のセラミック変換材料であって、20°において散乱強度SI(20)を有し、40°において散乱強度SI(40)を有し、SI(20)/SI(40)>1.6である、
ことを特徴とするセラミック変換材料。 - 30°において散乱強度SI(30)を有し、60°において散乱強度SI(60)を有し、SI(30)/SI(60)>1.9である、
請求項1記載のセラミック変換材料。 - セラミック変換材料は、その成分としての結晶子粒の好ましい配向を呈する、請求項1又は2記載のセラミック変換材料。
- 前記セラミック変換材料は、本質的に、d50が5μm以上の結晶粒で構成されている、
請求項1〜3のいずれか1項に記載のセラミック変換材料。 - 前記セラミック変換材料は、本質的に次の化学式、即ち、
〔化1〕
Sr1‐y‐zMySi2O2N2:Euz
で表され、上式において、Mは、Ca、Ba、Mg又はこれらの混合物を含む群から選択され、yは、0以上且つ1以下、zは、0.0001以上且つ0.5以下である、
請求項1〜4のいずれか1項に記載のセラミック変換材料。 - 少なくとも1種類の前駆物質コンパウンドの一軸熱圧ステップを有し、前記熱圧ステップは、1200℃以上且つ1800℃以下の温度で実施される、
請求項1〜5のいずれか1項に記載の材料の製造方法。 - 少なくとも1つの前駆物質コンパウンドは、本質的に、アスペクト比が≧2:1である、
請求項6記載の方法。 - 前記少なくとも1つの前駆物質コンパウンドは、本質的に、直径が500nm以上のプレート及び/又はフレークで作られている、
請求項6又は7記載の方法。 - 前記熱圧ステップは、50MPa以上の圧力で実施される、
請求項6〜8のいずれか1項に記載の方法。 - 請求項1〜5のうちいずれか一に記載されると共に/或いは請求項6〜9のいずれか1項に記載に従って製造された材料で構成されるシステムであって、前記システムは、以下の用途、即ち、
‐オフィス照明システム、
‐住宅用途システム、
‐店舗照明システム、
‐家庭照明システム、
‐アクセント照明システム、
‐スポット照明システム、
‐劇場照明システム、
‐光ファイバ用途システム、
‐投射システム、
‐自己照明ディスプレイシステム、
‐ピクセル化ディスプレイシステム、
‐セグメント化ディスプレイシステム、
‐警戒標識システム、
‐医用照明用途システム、
‐表示看板システム、
‐装飾照明システム、
‐携帯型システム、
‐自動車用途、
‐温室照明システムのうちの1つ又は2つ以上に用いられる、
ことを特徴とするシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP07122157.6 | 2007-12-03 | ||
EP07122157 | 2007-12-03 | ||
PCT/IB2008/054938 WO2009072029A2 (en) | 2007-12-03 | 2008-11-25 | Ceramic material for leds with reduced scattering and method of making the same |
Publications (2)
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JP2011505450A true JP2011505450A (ja) | 2011-02-24 |
JP5733984B2 JP5733984B2 (ja) | 2015-06-10 |
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US (1) | US20100273639A1 (ja) |
EP (1) | EP2231816B9 (ja) |
JP (1) | JP5733984B2 (ja) |
KR (1) | KR20100107001A (ja) |
CN (1) | CN101883834B (ja) |
AT (1) | ATE529496T1 (ja) |
ES (1) | ES2375686T3 (ja) |
RU (1) | RU2010127356A (ja) |
TW (1) | TW200932704A (ja) |
WO (1) | WO2009072029A2 (ja) |
Cited By (2)
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JP2015061902A (ja) * | 2013-08-22 | 2015-04-02 | パナソニックIpマネジメント株式会社 | 黄色蛍光体、発光デバイス、照明装置、および車両 |
Families Citing this family (4)
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DE102015102842A1 (de) | 2015-02-27 | 2016-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Leuchtstoffkompositkeramik sowie Verfahren zu deren Herstellung |
DE102015203578A1 (de) | 2015-02-27 | 2016-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur herstellung von optoelektronischen bauelementen und optoelektronische bauelemente |
CN105152655B (zh) * | 2015-07-15 | 2018-01-16 | 东莞华南设计创新院 | 一种陶瓷的织构化方法 |
US9650569B1 (en) * | 2015-11-25 | 2017-05-16 | Siemens Medical Solutions Usa, Inc. | Method of manufacturing garnet interfaces and articles containing the garnets obtained therefrom |
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- 2008-11-25 KR KR1020107014806A patent/KR20100107001A/ko not_active Application Discontinuation
- 2008-11-25 EP EP08858191A patent/EP2231816B9/en active Active
- 2008-11-25 WO PCT/IB2008/054938 patent/WO2009072029A2/en active Application Filing
- 2008-11-25 JP JP2010535491A patent/JP5733984B2/ja active Active
- 2008-11-25 ES ES08858191T patent/ES2375686T3/es active Active
- 2008-11-25 AT AT08858191T patent/ATE529496T1/de not_active IP Right Cessation
- 2008-11-25 RU RU2010127356/05A patent/RU2010127356A/ru not_active Application Discontinuation
- 2008-11-25 US US12/745,904 patent/US20100273639A1/en not_active Abandoned
- 2008-11-25 CN CN200880118932.9A patent/CN101883834B/zh active Active
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WO2006072918A1 (en) * | 2005-01-10 | 2006-07-13 | Philips Intellectual Property & Standards Gmbh | Illumination system comprising ceramic luminescence converter |
WO2006087660A1 (en) * | 2005-02-17 | 2006-08-24 | Philips Intellectual Property & Standards Gmbh | Illumination system comprising a green-emitting ceramic luminescence converter |
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JP2014122304A (ja) * | 2012-12-21 | 2014-07-03 | Toshiba Corp | 黄色蛍光体およびその製造方法 |
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EP2231816B1 (en) | 2011-10-19 |
JP5733984B2 (ja) | 2015-06-10 |
KR20100107001A (ko) | 2010-10-04 |
EP2231816B9 (en) | 2012-03-14 |
ES2375686T3 (es) | 2012-03-05 |
TW200932704A (en) | 2009-08-01 |
CN101883834A (zh) | 2010-11-10 |
ATE529496T1 (de) | 2011-11-15 |
WO2009072029A3 (en) | 2009-08-20 |
WO2009072029A2 (en) | 2009-06-11 |
EP2231816A2 (en) | 2010-09-29 |
RU2010127356A (ru) | 2012-01-10 |
CN101883834B (zh) | 2015-06-10 |
US20100273639A1 (en) | 2010-10-28 |
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