CN1919967A - 鸡尾酒荧光粉 - Google Patents

鸡尾酒荧光粉 Download PDF

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CN1919967A
CN1919967A CNA2005100969228A CN200510096922A CN1919967A CN 1919967 A CN1919967 A CN 1919967A CN A2005100969228 A CNA2005100969228 A CN A2005100969228A CN 200510096922 A CN200510096922 A CN 200510096922A CN 1919967 A CN1919967 A CN 1919967A
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cocktail
light
fluorescent powder
silicate
powder according
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童胜男
陈石明
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MINGDA OPTOELECTRONIC (XIAMEN) CO Ltd
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MINGDA OPTOELECTRONIC (XIAMEN) CO Ltd
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Priority to CNA2005100969228A priority Critical patent/CN1919967A/zh
Priority to PCT/US2006/027187 priority patent/WO2007024359A1/en
Publication of CN1919967A publication Critical patent/CN1919967A/zh
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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

本发明提供一种鸡尾酒荧光粉，系由含稀土元素之铝酸盐类与矽酸盐类组合而成之荧光粉，其特征是：能扩大激发光源波长之适用范围(如紫外光、近紫外光、蓝光等)，充分利用各种波长之激光效果，更可籍由稀土元素之调配而产生暖色系之白光。

Description

鸡尾酒荧光粉
技术领域
本发明提供一种鸡尾酒荧光粉，特别涉及一种获得暖色系白光LED之荧光粉调配技术。
背景技术
所谓白光是多种色光混合而成的光，以人类眼睛所能看见的白光形式至少需两种光混合，二波长光(蓝色光+黄色光)或三波长光(蓝色光+绿色光+红色光)，目前LED产生白光之主流技术有三种发光方式：主要是二波长蓝光单芯片加上黄色(YAG或TAG)荧光粉，成本低，但处处专利受限。第二种是三芯片(R·G·B)三原色混色成白光，但需电路控制才能得到稳定之颜色，成本较高。第三种是未来较被看好的三波长光，尤其是以紫外光芯片加上红蓝绿(RGB)三颜色荧光粉，但碍于紫外光芯片，在材料及制程上技术瓶颈未顺利突破，尚无法商品化量产。
以蓝光芯片激发黄色荧光粉(YAG或TAG)产生白光的原理，是利用所谓的互补光，如YAG与蓝光芯片组合会使红光部分较弱，且因为晶片发光强度的变化会左右色度座标，是产品上的一大缺点，因此世界各大厂皆在研发蓝色芯片除了激发黄色荧光粉(YAG或TAG)，亦能激发红色或绿色荧光粉，以改善产生白光之演色性。
发明内容
本发明要解决的主要技术问题是：提供一种能扩大激发光源波长适用范围之荧光粉，并可充分利用各种波长之激发效果，进而产生暖色系之白光。
本发明所述的一种鸡尾酒荧光粉，系由含稀土元素之铝酸盐类(含Y或Tb之石榴石物质)与矽酸盐类(使用Eu当活化剂)组合而成，其调配比例由5％∶95％到95％∶5％。荧光粉粉末微粒为5mm左右，PH值在7左右，其激发光源波长由300nm至470nm，包含紫外光(300nm～370nm)、近紫外光(370nm～420nm)、蓝光(420nm～470nm)。
本发明的有益效果是：藉由铝酸盐类与矽酸盐类不同之光激发特性组合，产生一种能扩大激发光源波长适用范围之荧光粉，大大改善白光之演色性，此外，亦可加入含稀土元素之磷酸盐类或硫化物，以产生暖色之白光。
附图说明
下列结合附图和实施例对本发明进一步说明：
图1为本发明实施例结构示意图
图中：1、导线架，2、导电胶，3、发光二极管芯片(蓝光)，4、反射杯，5、荧光粉(铝酸盐类与矽酸盐类组合而成)，6、导线，7、环氧树脂
具体实施方式
本发明所述的一种鸡尾酒荧光粉，经由蓝光芯片激发成暖色系白光之结构示意图，如图1所示，它包括导线架1、导电胶2、发光二极管芯片(蓝光)3、反射杯4、荧光粉5、导线6、环氧树脂7，将发光二极管芯片(蓝光)3，透过导电胶2置于导线架1上。芯片之正负电极经由导线6接至导线架上，再将铝酸盐类与矽酸盐类组合而成之荧光粉5，涂布于芯片上3与反射杯4之间，最后再以环氧树脂7完成封装。
当蓝光芯片3激发荧光粉5时，除会产生黄光外，因荧光粉之成份带有矽酸盐类。其微粒吸收从蓝光芯片发出的光会激发出偏绿或偏红之矽酸盐荧光体，进而产生暖色性白光，大大改善白光之演色性。

Claims (6)

1.一种鸡尾酒荧光粉，系由含稀土元素之铝酸盐类与矽酸盐类组合而成之荧光粉。
2.根据权利要求1所述的一种鸡尾酒荧光粉，其特征是：所述的铝酸盐类(Garnet)与矽酸盐类(Silicate)之调配之较适合比例为95％∶5％到5％∶95％。
3.根据权利要求1所述的一种鸡尾酒荧光粉，其特征是：所述的荧光粉粉末微粒较适合大小为5mm左右。
4.根据权利要求1所述的一种鸡尾酒荧光粉，其特征是：所述的荧光粉其PH值大约在7左右。
5.根据权利要求1所述的一种鸡尾酒荧光粉，其特征是：所述的荧光粉，能扩大激发光源波长之适用范围，如发光二极管(紫外光、近紫外光、蓝光)、镭射二极管等。
6.根据权利要求1所述的一种鸡尾酒荧光粉，其特征是：所述的荧光粉，其组成除上述外亦可再混入磷酸盐类或硫化物，可产生暖色系的白光。
CNA2005100969228A 2005-08-26 2005-08-26 鸡尾酒荧光粉 Pending CN1919967A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNA2005100969228A CN1919967A (zh) 2005-08-26 2005-08-26 鸡尾酒荧光粉
PCT/US2006/027187 WO2007024359A1 (en) 2005-08-26 2006-07-13 A phosphor prepared by mixing aluminum garnet and silicate with the addition of rare-earth meaterials

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CNA2005100969228A CN1919967A (zh) 2005-08-26 2005-08-26 鸡尾酒荧光粉

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109804048A (zh) * 2016-08-08 2019-05-24 通用电气公司 具有发红光磷光体的复合材料

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KR100284328B1 (ko) * 1993-02-11 2001-04-02 김순택 혼합 녹색발광 형광체 및 이를 사용한 음극선관
JP3247643B2 (ja) * 1997-09-10 2002-01-21 インターナショナル・ビジネス・マシーンズ・コーポレーション 液晶ディスプレイ装置
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CN109804048A (zh) * 2016-08-08 2019-05-24 通用电气公司 具有发红光磷光体的复合材料

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