CN1853283A - 白色发光照明系统 - Google Patents
白色发光照明系统 Download PDFInfo
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- CN1853283A CN1853283A CNA200480026470XA CN200480026470A CN1853283A CN 1853283 A CN1853283 A CN 1853283A CN A200480026470X A CNA200480026470X A CN A200480026470XA CN 200480026470 A CN200480026470 A CN 200480026470A CN 1853283 A CN1853283 A CN 1853283A
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 229910004283 SiO 4 Inorganic materials 0.000 claims abstract description 4
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 5
- 241001025261 Neoraja caerulea Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052917 strontium silicate Inorganic materials 0.000 description 1
- QSQXISIULMTHLV-UHFFFAOYSA-N strontium;dioxido(oxo)silane Chemical compound [Sr+2].[O-][Si]([O-])=O QSQXISIULMTHLV-UHFFFAOYSA-N 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7734—Aluminates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77342—Silicates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8511—Wavelength conversion means characterised by their material, e.g. binder
- H10H20/8512—Wavelength conversion materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
一种白色发光照明系统，包括蓝色或UV发光二极管和包括具有大于550nm的峰值发射波长的黄色发光荧光体的涂层，其中该荧光体包括Sr2－x－y－zCay BazSiO4:Eux荧光体，并且其中0＜x＜＝0.06且0＜(3y+z)＜＝0.5。如果二极管是UV发光二极管，则该涂层此外还包括蓝色发光荧光体。
Description
技术领域
本发明涉及白色发光照明系统，包括蓝色或UV发光二极管和包括黄色发光荧光体的涂层。
背景技术
传统的用于产生白光的LED照明系统典型地包括LED或荧光体LED。使用LED地的照明系统通过组合出各种不同的红色、绿色和蓝色LED的组合来产生白光。基于荧光体LED的照明系统通过使用蓝色或UV光LED顶部上的一种或多种不同的发光荧光体材料将所发出的一部分蓝色或UV光转换成波长较长的光来产生白光。如果使用的蓝光LED，则荧光体应当发黄光，以获得白光。如果使用UV光LED，则应当施加额外的荧光体，这一荧光体将部分UV光转换成蓝光，例如BaMgAl10O17:Eu荧光体。
与带有黄色发光荧光体的蓝光LED相比，使用带有蓝色和黄色发光荧光体的UV光LED的优点是，首先不太容易受到由存在于LED中的荧光体量的变化造成的颜色变化的影响。
一般来说，与基于LED的照明系统相比，用基于荧光体LED的照明系统产生白光比较容易，因为荧光体LED不需要进行混合并且材料成本较低(它们是自身混合的)。
公知的方法是使用带有黄色发光荧光体的蓝色LED，该荧光体是铈掺杂的钇铝石榴石Y3Al5O12:Ce，也称为YAG:Ce。
发明内容
本发明的目的是提供一种可供选用的与蓝色或UV LED一起使用以便获得白光LED的黄色发光荧光体，并且所获得的白光LED可以具有更好的颜色或效率特性。
此外本发明提供了一种蓝色或UV发光二极管和包括黄色发光Sr2-x-y-zCayBazSiO4:Eux荧光体的涂层，并且其中0＜x＜＝0.06且0＜(3y+z)＜＝0.5。最好0＜x＜＝0.04，0＜＝y＜＝0.1和/或0＜＝z＜＝0.3。更好的情况是，0.01＜＝x＜＝0.03，0.01＜＝y＜＝0.06和/或0.03＜＝z＜＝0.25。测试证明，含有少量Ca、Ba和Eu的硅酸锶荧光体在大于550nm(黄色)的峰值发射波长下发光，这使得这样的荧光体适于期望的用途。
按照本发明，Sr的量占优，得到大于550nm(黄色)的峰值发射波长，这使得将其与蓝色光混合并且获得仅由两种颜色成分组成的白色光成为可能。
附图说明
在考虑现在就要结合附图详细介绍的说明性实施方式的情况下，本发明的优点、本质和各种不同的附加特征将会更加充分地表露出来，其中：
附图1是用在本发明的照明系统中的典型荧光体LED的截面图。
附图2是表示荧光体实例的峰值发射波长的曲线图。
应当理解，附图的用途是解释说明本发明的概念，并不是按比例画出的。
具体实施方式
按照附图1，本发明的照明系统总的来说包括由蓝色或UV LED和至少一种发射一定光谱波长(颜色)的荧光体构成的荧光体LED 14，用来产生白光。LED 14是使用标准AlInGaN或AlInGaP工艺按照常规手段构成的，并且包括安装在用透明环氧树脂18填充的反射金属盘或反射体16上的LED芯片15。填充反射体16的环氧树脂18包含均匀混合于其中的一种或多种类型的发光荧光体材料的颗粒19。荧光体颗粒19将由LED芯片15发出的一部分光转换成不同光谱波长的光。
附图2表示Sr2-x-y-zCayBazSiO4:Eux型荧光体材料的五个测试实例的峰值发射波长。按照本发明，实例C、D和E可以用于与蓝色发光二极管进行组合，或者按照另外一种可选方案与UV发光二极管和蓝色发光荧光体组合，以产生白色光。
虽然前述发明是参照上述实例加以介绍的，但是可以对其进行各种不同的改造和改变，而不会超出本发明的思想。因此，所有这些改造和改变全都看作是处于所附的权利要求的范围内的。
Claims (7)
1.一种白色发光照明系统，包括蓝色或UV发光二极管和包括具有大于550nm的峰值发射波长的黄色发光荧光体的涂层，其中该荧光体包括Sr2-x-y-zCayBazSiO4:Eux荧光体，并且其中0＜x＜＝0.06且0＜(3y+z)＜＝0.5。
2.按照权利要求1所述的系统，其中0＜x＜＝0.04，优选地0.01＜＝x＜＝0.03。
3.按照权利要求1或2所述的系统，其中0＜y＜＝0.1，优选地0.01＜＝y＜＝0.06。
4.按照权利要求1、2或3所述的系统，其中0＜＝z＜＝0.3，优选地0.03＜＝z＜＝0.25。
5.按照前述权利要求1-4中任何一项所述的系统，其中荧光体此外还包括铈掺杂钇铝石榴石(YAG:Ce)荧光体。
6.按照前述权利要求1-5中任何一项所述的系统，其中二极管是UV发光二极管，并且所述涂层此外还包括蓝色发光荧光体。
7.按照权利要求6所述的系统，其中蓝色发光荧光体包括BaMgAl10O17:Eu荧光体。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03103384.8 | 2003-09-15 | ||
| EP03103384 | 2003-09-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1853283A true CN1853283A (zh) | 2006-10-25 |
| CN100416873C CN100416873C (zh) | 2008-09-03 |
Family
ID=34306935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480026470XA Expired - Lifetime CN100416873C (zh) | 2003-09-15 | 2004-08-27 | 白色发光照明系统 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070075620A1 (zh) |
| EP (1) | EP1665399B1 (zh) |
| JP (1) | JP2007506264A (zh) |
| CN (1) | CN100416873C (zh) |
| AT (1) | ATE449426T1 (zh) |
| DE (1) | DE602004024216D1 (zh) |
| WO (1) | WO2005027231A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129802A (zh) * | 2017-04-19 | 2017-09-05 | 南昌大学 | 铕掺杂碱土正硅酸盐基绿色荧光粉体及其制备方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4836429B2 (ja) | 2004-10-18 | 2011-12-14 | 株式会社東芝 | 蛍光体およびこれを用いた発光装置 |
| KR20060034055A (ko) * | 2004-10-18 | 2006-04-21 | 엘지이노텍 주식회사 | 형광체 및 이를 이용한 발광소자 |
| JP4880892B2 (ja) | 2004-10-18 | 2012-02-22 | 株式会社東芝 | 蛍光体，蛍光体の製造方法およびこれを用いた発光装置 |
| US7501753B2 (en) * | 2005-08-31 | 2009-03-10 | Lumination Llc | Phosphor and blends thereof for use in LEDs |
| US7859182B2 (en) | 2005-08-31 | 2010-12-28 | Lumination Llc | Warm white LED-based lamp incoporating divalent EU-activated silicate yellow emitting phosphor |
| CN101077973B (zh) * | 2006-05-26 | 2010-09-29 | 大连路明发光科技股份有限公司 | 硅酸盐荧光材料及其制造方法以及使用其的发光装置 |
| JP2008135725A (ja) * | 2006-10-31 | 2008-06-12 | Toshiba Corp | 半導体発光装置 |
| TWI496315B (zh) * | 2006-11-13 | 2015-08-11 | Cree Inc | 照明裝置、被照明的殼體及照明方法 |
| CN102192422B (zh) * | 2010-03-12 | 2014-06-25 | 四川新力光源股份有限公司 | 白光led照明装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB544160A (en) * | 1940-08-27 | 1942-03-31 | Gen Electric Co Ltd | Improvements in luminescent materials |
| JP2000509912A (ja) * | 1997-03-03 | 2000-08-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 白色光発光ダイオード |
| US6429583B1 (en) * | 1998-11-30 | 2002-08-06 | General Electric Company | Light emitting device with ba2mgsi2o7:eu2+, ba2sio4:eu2+, or (srxcay ba1-x-y)(a1zga1-z)2sr:eu2+phosphors |
| US6621211B1 (en) * | 2000-05-15 | 2003-09-16 | General Electric Company | White light emitting phosphor blends for LED devices |
| JP3985478B2 (ja) * | 2000-09-29 | 2007-10-03 | 住友化学株式会社 | 真空紫外線励起発光素子用の蛍光体 |
| AT410266B (de) * | 2000-12-28 | 2003-03-25 | Tridonic Optoelectronics Gmbh | Lichtquelle mit einem lichtemittierenden element |
| CN101335322B (zh) * | 2001-09-03 | 2010-12-08 | 松下电器产业株式会社 | 荧光体层、半导体发光装置及半导体发光元件的制造方法 |
| JP3993854B2 (ja) * | 2001-10-01 | 2007-10-17 | 松下電器産業株式会社 | 半導体発光素子とこれを用いた発光装置 |
| JP3985486B2 (ja) * | 2001-10-01 | 2007-10-03 | 松下電器産業株式会社 | 半導体発光素子とこれを用いた発光装置 |
| TWI290329B (en) * | 2001-10-30 | 2007-11-21 | Hitachi Ltd | Plasma display device, luminescent device and image and information display system using the same |
| US6869753B2 (en) * | 2002-10-11 | 2005-03-22 | Agilent Technologies, Inc. | Screen printing process for light emitting base layer |
-
2004
- 2004-08-27 CN CNB200480026470XA patent/CN100416873C/zh not_active Expired - Lifetime
- 2004-08-27 DE DE602004024216T patent/DE602004024216D1/de not_active Expired - Lifetime
- 2004-08-27 JP JP2006525951A patent/JP2007506264A/ja active Pending
- 2004-08-27 WO PCT/IB2004/051582 patent/WO2005027231A1/en active Application Filing
- 2004-08-27 AT AT04769866T patent/ATE449426T1/de not_active IP Right Cessation
- 2004-08-27 US US10/571,624 patent/US20070075620A1/en not_active Abandoned
- 2004-08-27 EP EP04769866A patent/EP1665399B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129802A (zh) * | 2017-04-19 | 2017-09-05 | 南昌大学 | 铕掺杂碱土正硅酸盐基绿色荧光粉体及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE449426T1 (de) | 2009-12-15 |
| EP1665399A1 (en) | 2006-06-07 |
| JP2007506264A (ja) | 2007-03-15 |
| WO2005027231A1 (en) | 2005-03-24 |
| DE602004024216D1 (de) | 2009-12-31 |
| US20070075620A1 (en) | 2007-04-05 |
| EP1665399B1 (en) | 2009-11-18 |
| CN100416873C (zh) | 2008-09-03 |
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