JP5279493B2 - 波長変換用変換材料、光放射光学素子ならびにその製造方法 - Google Patents
波長変換用変換材料、光放射光学素子ならびにその製造方法 Download PDFInfo
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Description
Claims (39)
- 発光材料粒子を有する少なくとも1つの波長変換発光材料を有する、波長変換用変換材料において、
前記発光材料の一部分がナノ粒子の形態にあり、
前記ナノ粒子は、質量分布合計または体積分布合計(Q3)に基づき測定された、または個数分布合計(Q0)に基づき測定された粒子サイズで、1nmよりも大きいかまたは1nmと等しくかつ100nmよりも小さいかまたは100nmと等しいd50値を有しており、
前記変換材料はシートとして設けられており、
前記変換材料は、別の発光粒子を有する別の発光材料を含み、該発光材料は、質量分布合計または体積分布合計(Q 3 )または個数分布合計(Q 0 )に基づく測定で、1μm以上20μm以下のd 50 値をもち、
ナノ粒子の形態をとる前記発光材料は、前記別の発光材料のための光学的に活性のチキソトロープ剤または光学的に活性の沈降遅延剤として用いられることを特徴とする波長変換用変換材料。 - 請求項1記載の波長変換用変換材料において、
前記ナノ粒子は、質量分布合計または体積分布合計(Q3)に基づき測定された、または個数分布合計(Q0)に基づき測定された粒子サイズで、1nmよりも大きいかまたは1nmと等しくかつ30nmよりも小さいかまたは30nmと等しいd50値を有することを特徴とする変換材料。 - 請求項1または2記載の波長変換用変換材料において、
存在する前記ナノ粒子の一部分が、または存在するすべてのナノ粒子がアグロメレートを成しており、該ナノ粒子は、質量分布合計または体積分布合計(Q3)に基づき測定された、または個数分布合計(Q0)に基づき測定された粒子サイズで、1nmよりも大きいかまたは1nmと等しくかつ100nmよりも小さいかまたは100nmと等しいd50値を有することを特徴とする変換材料。 - 請求項1から3のいずれか1項記載の波長変換用変換材料において、
エポキシ樹脂、アクリラート、シリコーン樹脂、熱可塑性樹脂のうち少なくとも1つの材料を有することを特徴とする変換材料。 - 請求項4記載の波長変換用変換材料において、
エポキシ樹脂とアクリラートのうち少なくとも一方の材料とシリコーン樹脂とを有する少なくとも1つのハイブリッド材料を含んでいることを特徴とする変換材料。 - 請求項4記載の波長変換用変換材料において、
ポリ−N−メチルメタクリルイミド(PMMI)、ポリカーボネート(PC)、ポリアミド(PA)、ポリスチレン(PS)、シクロオレフィンポリマー(COP)、シクロオレフィンコポリマー(COC)から成るグループのうち少なくとも1つの熱可塑性樹脂を有することを特徴とする変換材料。 - 請求項1から3のいずれか1項記載の波長変換用変換材料において、
少なくとも1つの無機マトリックス材料を有することを特徴とする変換材料。 - 請求項4記載の波長変換用変換材料において、
少なくとも1つの付加架橋性のシリコーン樹脂を有することを特徴とする変換材料。 - 請求項8記載の波長変換用変換材料において、
前記シリコーン樹脂は熱硬化性または光硬化性であることを特徴とする変換材料。 - 請求項1から9のいずれか1項記載の波長変換用変換材料において、
前記発光材料には少なくとも、希土類でドーピングされたガーネット、希土類でドーピングされたチオガレート、希土類でドーピングされたアルミン酸塩または希土類でドーピングされたオルトケイ酸塩のグループから成る発光材料粒子、または希土類、Mn、AgおよびCrから成るグループによる少なくとも1つの活性剤を伴う酸化主格子を有する発光材料粒子が含まれていることを特徴とする変換材料。 - 請求項1から10のいずれか1項記載の波長変換用変換材料において、
前記発光材料粒子はランタニド、マンガン、クロム、銀またはウラニルという元素を活性剤イオンとして有することを特徴とする変換材料。 - 請求項1から11のいずれか1項記載の波長変換用変換材料において、
前記変換材料には、少なくとも1つの無機発光材料と、少なくとも1つの有機発光材料とが含まれており、前記無機発光材料は、ナノ粒子の形態をとる発光材料粒子を有することを特徴とする変換材料。 - 請求項1から12のいずれか1項記載の波長変換用変換材料において、
光により励起しないため波長変換は行わない散乱粒子が含まれており、該散乱粒子は、質量分布合計または体積分布合計(Q3)に基づき測定された、または個数分布合計(Q0)に基づき測定された粒子サイズで、100nmよりも大きくかつ10μm以下のd50値を有することを特徴とする変換材料。 - 請求項1から13のいずれか1項記載の波長変換用変換材料において、
ナノ粒子の形態にある前記発光材料には、主格子材料の同じ構成部分を有する同種の粒子、またはそれぞれ異なる活性剤濃度をもつ同じ活性材料をもつ同じ主格子材料を有する同種の粒子が含まれていることを特徴とする変換材料。 - 請求項14記載の波長変換用変換材料において、
前記同種の粒子における第1の部分の活性剤濃度は、発光材料粒子の0.1原子%と3原子%との間にありここで0.1原子%と3原子%も含み、前記同種の粒子における第2の部分の活性剤濃度は、発光材料粒子の3原子%と10原子%との間にありここで3原子%と10原子%も含むことを特徴とする変換材料。 - 請求項1から15のいずれか1項記載の波長変換用変換材料において、
主格子を有する少なくとも1つの発光材料が含まれており、該発光材料には同時に少なくとも2つの異なる原子が活性剤として含まれていることを特徴とする変換材料。 - 請求項1から16のいずれか1項記載の波長変換用変換材料において、
少なくとも1つの貯蔵安定性のある硬化配合物をもつ少なくとも1つの反応性樹脂をエポキシ注型樹脂配合物として有することを特徴とする変換材料。 - 請求項17記載の波長変換用変換材料において、
前記硬化配合物は、酸性エステルを伴うカルボン酸無水物(カルボン酸無水物半エステル)、硬化した変換材料の柔軟性を高める柔軟剤、有機リン化合物、開始剤および促進剤のうち1つまたは複数の材料を有することを特徴とする変換材料。 - 請求項17または18記載の波長変換用変換材料において、
前記硬化配合物は、無色のZn2+イオンの少なくとも1つの錯体化合物を促進剤として有することを特徴とする変換材料。 - 請求項19記載の波長変換用変換材料において、
前記無色のZn2+イオンの錯体化合物は有機イオンリガンドを有することを特徴とする変換材料。 - 請求項20記載の波長変換用変換材料において、
前記硬化配合物は亜鉛オクトアートを促進剤として有することを特徴とする変換材料。 - 請求項19または21記載の波長変換用変換材料において、
前記錯体化合物は10重量%よりも大きいZn2+含有量を有することを特徴とする変換材料。 - 請求項19または21記載の波長変換用変換材料において、
前記錯体化合物は21重量%よりも大きいまたは21重量%と等しいZn2+含有量を有することを特徴とする変換材料。 - 請求項1から23のいずれか1項記載の波長変換用変換材料において、
部分的にまたは完全に層として設けられていることを特徴とする変換材料。 - 請求項24記載の波長変換用変換材料において、
前記層の厚さは50μmよりも小さいかまたは50μmと等しいことを特徴とする変換材料。 - 請求項24記載の波長変換用変換材料において、
前記層の厚さは5μmよりも小さいかまたは5μmと等しいことを特徴とする変換材料。 - 前記変換材料における層の周縁領域は、該層の他の領域よりも薄い、請求項1から26のいずれか1項記載の変換材料。
- 前記変換材料における発光材料の割合は60重量%以上80重量%以下である、請求項1から27のいずれか1項記載の変換材料。
- 光放射光学素子において、
放射源と、請求項1から28のいずれか1項記載の波長変換用変換材料を有しており、該変換材料により、前記放射源から放出された電磁放射が部分的にまたは完全に、波長の変えられた放射に変換されることを特徴とする光学素子。 - 請求項29記載の光放射光学素子において、
一般照明用に設けられていることを特徴とする光学素子。 - 請求項29または30記載の光放射光学素子において、
前記光源は有機ルミネセンスダイオードを有しており、該有機ルミネセンスダイオードに前記変換材料が設けられているかまたは該有機ルミネセンスダイオードは前記変換材料を有することを特徴とする光学素子。 - 請求項29から31のいずれか1項記載の光放射光学素子において、
前記光源は該素子内でパルス駆動により駆動され、および/または該素子は光学的スイッチングプロセスのために設けられていることを特徴とする光学素子。 - 請求項29から32のいずれか1項記載の光放射光学素子において、
前記変換材料は部分的にまたは完全に層として設けられており、前記光源はルミネセンスダイオードチップを有しており、該ルミネセンスダイオードチップに変換材料が設けられていることを特徴とする光学素子。 - 光放射光学素子の製造方法において、
電磁放射源を設けるステップと、
該電磁放射源に、少なくとも1つの波長変換用発光材料を有する波長変換用変換材料を取り付けるステップを有しており、該変換材料を、取り付け前にシートの形態で用意し、
前記発光材料は少なくとも部分的にナノ粒子の形態をとり、該粒子は、質量分布合計または体積分布合計(Q3)に基づき測定された、または個数分布合計(Q0)に基づき測定された粒子サイズで、1nmよりも大きいかまたは1nmと等しくかつ100nmよりも小さいかまたは100nmと等しいd50値を有しており、
前記変換材料は、別の発光粒子を有する別の発光材料を含み、該発光材料は、質量分布合計または体積分布合計(Q 3 )または個数分布合計(Q 0 )に基づく測定で、1μm以上20μm以下のd 50 値をもち、
ナノ粒子の形態をとる前記発光材料は、前記別の発光材料のための光学的に活性のチキソトロープ剤または光学的に活性の沈降遅延剤として用いられ、
前記変換材料は部分的にまたは完全に50μmよりも小さいかまたは50μmと等しい厚さをもつ層の形状を有することを特徴とする光学素子の製造方法。 - 請求項34記載の方法において、
ナノ粒子の少なくとも一部分を有機溶剤中の少なくとも1つの懸濁液として用意するステップと、
該懸濁液を処理して変換材料のベース成分とするステップと、
該変換材料から溶剤を取り除くステップを有することを特徴とする方法。 - 前記懸濁液は、10m2/g以上の比表面積をもつ微分散性の充填材料である、請求項35記載の方法。
- 請求項35または36記載の方法において、
前記溶剤はアルコール、グリコールエーテル、THF、ジオキサンおよびEtAcのうち少なくとも1つの材料を有することを特徴とする方法。 - 請求項34から37のいずれか1項記載の方法において、
前記懸濁液を処理するために、グリコールエーテルと、湿潤剤および固着剤のうち少なくとも1つの種類の材料とが用いられることを特徴とする方法。 - 光放射光学素子において、
請求項34から38のいずれか1項記載の方法に従い製造されており、前記光学素子から主放射方向で放出される光の、CIE色度図における定められた色座標のために設けられており、
前記色座標は、素子から放出された光の色座標におけるx座標値とy座標値が少なくとも95%の統計的確実性を伴って0.006以下の大きさをもつインターバル内に位置するよう、精確に調整されていることを特徴とする光放射光学素子。
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JP4803339B2 (ja) | 2003-11-20 | 2011-10-26 | 信越化学工業株式会社 | エポキシ・シリコーン混成樹脂組成物及び発光半導体装置 |
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2005
- 2005-12-23 DE DE102005061828.6A patent/DE102005061828B4/de active Active
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- 2006-06-07 JP JP2008517308A patent/JP5279493B2/ja active Active
- 2006-06-07 CN CN2006800286587A patent/CN101238592B/zh active Active
- 2006-06-07 US US11/917,789 patent/US8723198B2/en active Active
- 2006-06-07 WO PCT/DE2006/000980 patent/WO2007006246A1/de active Application Filing
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EP1897152A1 (de) | 2008-03-12 |
WO2007006246A1 (de) | 2007-01-18 |
DE102005061828B4 (de) | 2017-05-24 |
US20090173957A1 (en) | 2009-07-09 |
EP1897152B1 (de) | 2020-04-01 |
US8723198B2 (en) | 2014-05-13 |
CN101238592A (zh) | 2008-08-06 |
CN101238592B (zh) | 2010-06-16 |
TW200704744A (en) | 2007-02-01 |
KR20080031742A (ko) | 2008-04-10 |
JP2008546877A (ja) | 2008-12-25 |
DE102005061828A1 (de) | 2007-01-04 |
TWI316539B (en) | 2009-11-01 |
KR101267196B1 (ko) | 2013-05-23 |
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