CN1706023A - 生成白光的发光体 - Google Patents

生成白光的发光体 Download PDF

Info

Publication number
CN1706023A
CN1706023A CNA200380101348XA CN200380101348A CN1706023A CN 1706023 A CN1706023 A CN 1706023A CN A200380101348X A CNA200380101348X A CN A200380101348XA CN 200380101348 A CN200380101348 A CN 200380101348A CN 1706023 A CN1706023 A CN 1706023A
Authority
CN
China
Prior art keywords
light
emitting diode
luminous element
fluorescent lamp
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA200380101348XA
Other languages
English (en)
Inventor
T·杰斯特
D·伯特拉姆
P·施米特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1706023A publication Critical patent/CN1706023A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • 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
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7777—Phosphates
    • 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
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/778—Borates
    • 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
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7795—Phosphates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B35/00—Electric light sources using a combination of different types of light generation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/20—Combination of light sources of different form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

描述了一种用于生成白光的发光体，为其提供发出蓝光的发光二极管和包含绿色和红色荧光粉的荧光灯的组合。

Description

生成白光的发光体
本发明涉及一种用于生成白光的发光体，该发光体的特别的特征是具有增长的使用寿命和更大的色点稳定性。
已知在高质量荧光灯中使用三色荧光混合物用于生成白光。那么该灯的色点由荧光粉的混合比确定。
目前使用的蓝色荧光粉此处代表了由于催化剂EU2+的灵敏性用于保持色点的一种特殊的问题。结果，打开灯时荧光灯在其色点中显示出一种不良的转变，这种转变在小型的荧光灯(节能灯)情况下特别令人不愉快。
荧光灯可以从日本专利申请JP-10275600A中了解，其光谱可以被发光二极管修改。然而，在这种情况下该发光二极管被集成在灯头中，从而接触到放电。气体放电是一种高侵蚀性的介质，它能迅速破坏发光二极管。另外，完全省略一直被沿用到现在的蓝色荧光粉的做法没有在该专利申请中提出。
因此，本发明的一个目的是提出一种具有显著的长使用寿命和改进的色点稳定性的发光体。
这一目的是通过一种发光体来实现，为了发出白光，为该发光体提供生成蓝光(380-500nm)的发光二极管和包含绿色和红色荧光粉的一个或多个荧光灯的组合。由于没有蓝色光的发射，该荧光灯发出具有2500至3000K之间色温的淡黄白光。
只要得到良好的光线混合和均匀的光线，提供蓝光的发光二极管可以按照各种方式布置在根据本发明的发光体中。然而，由于与放电的接触会使其使用寿命减少很多，因此发光二极管不能直接集成在荧光灯的灯头中。
由于蓝色光发光二极管的使用寿命比常规的气体放电源要长的多，因此本发明极大提高了该发光体的使用寿命和色点稳定性。
常规发光体的寿命短主要是因为含有Eu2+的蓝色发光荧光粉，例如BaMgAl10O17:Eu和Sr5(PO4)3(F，Cl):Eu。这些荧光粉的损耗相当快，并且进行了许多旨在提高荧光粉的质量以避免其快速损耗的实验。然而到目前为止，还没有找到用于替代这些蓝色发光物质的替换荧光粉。
在发白光的发光体中蓝光的发射是一个决定性因素，特别是在高色温的情况下。由于目前应用的所有荧光灯(TL、PL和CFL)的弱点在于发蓝光的荧光粉，根据本发明的解决方法为这些灯极大减少了灯的寿命的问题，对于这种灯的经济性来说这一点很重要。
优选地，结合具有红色和绿色荧光粉的荧光灯和能够提供波长范围在380和500nm之间的蓝光的InGaN或AlInGav发光二极管形成根据本发明的发光体。这两个光源，即荧光灯和蓝色发光二极管，处于单个灯罩内或同一照明设备内。
将结合包含图10、图1到6的附图对本发明进行说明，其中
图10示出了根据本发明具有提供了蓝光的发光二极管的灯，
图1示出了具有提供了蓝光的发光二极管和荧光灯管的矩形发光单元(light tile)，
图2示出了具有提供了蓝光的发光二极管和环形荧光灯管的圆形灯，
图3示出了具有LaMgAl11O19:CeTb和Y2O3:Eu的荧光灯的发射光谱，
图4示出了发出蓝光的发光二极管的发射光谱，
图5示出了发出蓝光的发光二极管的色点、荧光灯和由前面二者在5000K CCT形成的光源，并且
图6示出了合并了发出蓝光的发光二极管和具有LaMgAl11O19:CeTb和Y2O3:Eu的荧光灯的发光体在5000K CCT的发射光谱。
图10示出了根据本发明具有发出蓝光的发光二极管1、荧光灯2和涂有光散射层的外层灯泡的发光体。此处，三个具有480nm的最大发射波长的发出蓝光的InGaN发光二极管可以被置于外层灯泡3的内部。该荧光灯涂有LaMgAl11O19:CeTb(绿色)和Y2O3:Eu(红色)从而当该荧光灯被单独打开时发出淡黄色白光。该发光二极管的电源被集成在该发光体的底部。当该发光二极管连同该荧光灯被打开时，光线将在该灯泡内被混合并且全部发出的光看上去将是白色，对应于色温T＝5000K。通过该发光二极管的电流增大会导致发射的蓝光增多，这使得全部发出的光的色温上升；该电流的减小减少了蓝光的量并且相应地降低了发出的光的色温。
对于2600和10000K之间的所有色温，通过这种方式得到的色彩再现指数大于80。
如图1和2所示根据本发明的发光体呈平面或圆形并覆盖有PMMA板。该荧光灯包含绿色荧光粉，例如LaPO4:CeTb，LaMgAl11O19:CeTb，或者GdMgB5O10:CeTb，和红色荧光粉，例如，Y2O3:Eu或者Y(V，P)O4:Eu。
图3示出了这样一种荧光灯的发射光谱。这些荧光灯的色点(x＝0.47，y＝0.42)离发出白光的发光二极管中所使用的YaGaG:Ce的色点(x＝0.48，y＝0.50)很近。
如果正确选定了蓝色发光二极管，电流强度的增大使得可以将蓝色发光二极管的色温提高到10000K，结果该色点离这一色温的黑体轨迹很近。具有位于x＝0.1和y＝0.2的色点的蓝色发光二极管最合适。
根据本发明的发光体的优点在于改进的发光效能和更高的色点稳定性，因为该发光二极管的使用寿命比目前在荧光灯中所使用的常规蓝色荧光粉的使用寿命长得多。
另外，由于仅通过增大或减小电流强度改变该发光二极管的蓝光的发射，因此可以更容易地改变根据本发明的发光体中的光线颜色。为此，需要为该发光二极管单独供电，从而对流到该发光二极管的电流(并且因此其光线发射)的控制可以独立于该荧光灯的光线发射。这使得可以在更大范围内调节该蓝色发光二极管的色温，例如在2660K和10000K之间。
看上去应该仅是一个单独光源的两个光源的组合，需要某种光学装置用于通过合适的方式混合光线。在没有这种光学装置时，光线的组合是可见的，并且发出的光看上去不均匀。相应地需要将该发光二极管集成到该灯中从而保持良好的光线分布和混合。
这可以在类似GLS的CFL-I灯中很容易地实现，因为已经为此开发出了一种外层热塑料灯泡，该灯泡通过粉末层散射光线。于是将蓝色发光二极管置于该CFL-I灯的外层灯泡内即可，而所需电子控制装置可以置于该灯底部。同样可以想象用于实现本发明的可选结构，例如将蓝色发光二极管置于同一灯罩内，或者可选地置于独立于该荧光灯的灯罩内。该发光二极管也可以结合一面覆盖有光散射层的PMMA塑料箔或塑料片以及结合用于在另外一面将该光线耦合出来的结构一起应用。
小型的荧光灯、Hg低压气体放电灯、Hg高压气体放电灯或硫磺灯可被用作根据本发明的发光体中的荧光灯。在所有情况下白光的生成中，该发光体的使用寿命和色点稳定性都有很大提高。

Claims (8)

1.用于生成白光的发光体，其特征在于为其提供发出蓝光的发光二极管和包含绿色和红色荧光粉的荧光灯的组合。
2.如权利要求1中所述的发光体，其特征在于发出蓝光的该发光二极管包含基于InGaN或AlInGan的半导体。
3.如权利要求1和2中所述的发光体，其特征在于由该发光二极管发出的蓝光处于380和500nm之间的波长范围内。
4.如权利要求1到3中所述的发光体，其特征在于该荧光灯是一种小型的荧光灯(节能灯)，Hg低压气体放电灯(荧光灯管)，Hg高压放电灯，或硫磺灯。
5.如权利要求1到4中所述的发光体，其特征在于该荧光灯包含该组LaPO4:CeTb、LaMgAl11O19:CeTb、GdMgB5O10:CeTb、Y2O3:Eu、Y(V，P)O4:Eu中至少一种荧光粉，或其混合物之一。
6.如权利要求1到5中所述的发光体，其特征在于发出蓝光的该发光二极管被置于和该荧光灯相同的灯罩内。
7.如权利要求1到6中所述的发光体，其特征在于发出蓝光的该发光二极管被置于独立于该荧光灯的灯罩内。
8.如权利要求1到7中所述的发光体，其特征在于为发出蓝光的该发光二极管提供独立供电，从而流到该发光二极管的电流并且因此对其发出的光线的控制可以独立于该荧光灯的光线发射。
CNA200380101348XA 2002-10-14 2003-10-08 生成白光的发光体 Pending CN1706023A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10247833.3 2002-10-14
DE10247833 2002-10-14

Publications (1)

Publication Number Publication Date
CN1706023A true CN1706023A (zh) 2005-12-07

Family

ID=32102754

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA200380101348XA Pending CN1706023A (zh) 2002-10-14 2003-10-08 生成白光的发光体

Country Status (7)

Country Link
US (1) US20060023447A1 (zh)
EP (1) EP1554746A1 (zh)
JP (1) JP2006503413A (zh)
CN (1) CN1706023A (zh)
AU (1) AU2003264780A1 (zh)
TW (1) TW200419623A (zh)
WO (1) WO2004036618A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101309533B (zh) * 2007-05-18 2010-04-21 俞恒载 护眼照明设备
CN101867007A (zh) * 2010-05-11 2010-10-20 电子科技大学 Led灯荧光粉层的制备方法
CN102142514A (zh) * 2010-01-28 2011-08-03 海洋王照明科技股份有限公司 一种led发光板及其制备方法

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040264187A1 (en) * 2003-06-25 2004-12-30 Vanderschuit Carl R. Lighting device
US7484860B2 (en) * 2003-07-02 2009-02-03 S.C. Johnson & Son, Inc. Combination white light and colored LED light device with active ingredient emission
US7520635B2 (en) * 2003-07-02 2009-04-21 S.C. Johnson & Son, Inc. Structures for color changing light devices
ATE353128T1 (de) * 2003-08-05 2007-02-15 Christian Bartenbach Leuchte mit mindestens zwei lichtquellen
KR100577298B1 (ko) * 2003-12-30 2006-05-10 엘지.필립스 엘시디 주식회사 백라이트 유닛과 이를 구비한 액정표시장치 및 그의구동방법
DE102004006614A1 (de) * 2004-02-10 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Beleuchtungsvorrichtung
JP2005264031A (ja) * 2004-03-19 2005-09-29 Kun-Chui Lee 白色発光装置
JP4229001B2 (ja) * 2004-06-02 2009-02-25 ソニー株式会社 照明装置及び液晶表示装置
WO2006035355A1 (en) * 2004-09-29 2006-04-06 Philips Intellectual Property & Standards Gmbh Light emitting device with a eu(iii)-activated phosphor and second phosphor
JP2006216251A (ja) * 2005-02-01 2006-08-17 Koito Mfg Co Ltd 車両用前照灯装置
JP4956020B2 (ja) * 2005-03-02 2012-06-20 パナソニック株式会社 点灯ユニット及び放電ランプ
JP2006252958A (ja) * 2005-03-10 2006-09-21 Sharp Corp 照明装置、及びこれを備えた液晶表示装置
DE102005027261A1 (de) * 2005-06-13 2006-12-21 Zumtobel Staff Gmbh Leuchte mit Hauptlichtquelle und Zusatzlichtquelle
DE102005032314A1 (de) * 2005-07-11 2007-01-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampenanordnung
JP4467491B2 (ja) * 2005-09-06 2010-05-26 シャープ株式会社 バックライト装置，液晶表示装置
JP2007334131A (ja) * 2006-06-16 2007-12-27 Nichia Chem Ind Ltd 液晶表示装置用光源及びこれを用いた液晶表示装置
DE102006041533A1 (de) * 2006-09-05 2008-03-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Beleuchtungsvorrichtung
JP2010517217A (ja) * 2007-01-23 2010-05-20 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 照明デバイス及び斯様な照明デバイスを有する照明器具
DE102007022566A1 (de) * 2007-05-14 2008-11-20 Merck Patent Gmbh Beleuchtungseinheit bestehend aus Entladungslampe, LEDs und Konversionsleuchten
GB2452716A (en) * 2007-09-11 2009-03-18 Verivide Ltd Illumination arrangement for colour assessment apparatus and method
EP2076096A1 (en) * 2007-12-24 2009-07-01 Tecnolux Italia S.A.S. di Benito Tacconi e C. Illumination device and process for adjusting the brightness of the light emitted by said illumination device
KR100858641B1 (ko) * 2008-01-08 2008-09-16 유항재 시력 보호 기능을 가진 컴팩트 형광램프용 아답터
US7543957B1 (en) 2008-01-29 2009-06-09 General Electric Company Thermal management of LEDS integrated to compact fluorescent lamps
WO2010111725A1 (de) * 2009-04-01 2010-10-07 Tridonic Gmbh & Co Kg Leuchtmittel, vorzugsweise zur werbebeleuchtung
KR101323567B1 (ko) * 2009-12-03 2013-10-30 엘지디스플레이 주식회사 표시장치용 백 라이트 유닛
BR112014001364A2 (pt) 2011-10-31 2017-04-18 Koninklijke Philips Nv dispositivo de saída de luz, luminária e método para fabricação de um dispositivo de saída de luz
US10253957B2 (en) * 2017-07-25 2019-04-09 Lifetime Products, LLC Lighting arrangement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268614A (en) * 1991-02-19 1993-12-07 General Electric Company Fluorescent lamps and improved yttrium-containing phosphors useful therein
JPH10275600A (ja) * 1997-03-28 1998-10-13 Matsushita Electric Ind Co Ltd 放電ランプと放電ランプ器具
US6538371B1 (en) * 2000-03-27 2003-03-25 The General Electric Company White light illumination system with improved color output
DE20007134U1 (de) * 2000-04-18 2000-08-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Leuchte mit einstellbarem Farbort
WO2002062106A1 (en) * 2001-02-02 2002-08-08 Koninklijke Philips Electronics N.V. Integrated light source
US6400097B1 (en) * 2001-10-18 2002-06-04 General Electric Company Low wattage fluorescent lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101309533B (zh) * 2007-05-18 2010-04-21 俞恒载 护眼照明设备
CN102142514A (zh) * 2010-01-28 2011-08-03 海洋王照明科技股份有限公司 一种led发光板及其制备方法
CN101867007A (zh) * 2010-05-11 2010-10-20 电子科技大学 Led灯荧光粉层的制备方法

Also Published As

Publication number Publication date
WO2004036618A1 (en) 2004-04-29
AU2003264780A1 (en) 2004-05-04
JP2006503413A (ja) 2006-01-26
EP1554746A1 (en) 2005-07-20
TW200419623A (en) 2004-10-01
US20060023447A1 (en) 2006-02-02

Similar Documents

Publication Publication Date Title
CN1706023A (zh) 生成白光的发光体
EP2247891B1 (en) Gls-alike led light source
US9877370B2 (en) Lighting device comprising at least two sets of LEDs
US10568172B2 (en) Dimmable solid-state light emitting devices
JP6363061B2 (ja) 白色発光モジュール
US7600882B1 (en) High efficiency incandescent bulb replacement lamp
JP4797675B2 (ja) 光源、固体発光素子モジュール、蛍光体モジュール、配光素子モジュール、照明装置及び画像表示装置、並びに、光源の調光方法
KR20140097328A (ko) 다수 파장 변환 재료를 포함하는 고체 상태 조명 장치
TWI425650B (zh) 具改善調光性能之光源
US8256920B2 (en) Illumination unit consisting of discharge lamp, LEDs and conversion phosphors
JP2004103443A (ja) Ｌｅｄ照明装置
US20050242360A1 (en) White light apparatus with adjustable color temperature and method of producing white light thereof
KR20010089508A (ko) 3색 백색광 발광 다이오드 램프
JP2008140704A (ja) Ｌｅｄバックライト
KR20110129968A (ko) 원격 발광성 재료를 갖는 조명 장치
CN102714260A (zh) 包括光混合物的固态照明装置
CN110612610A (zh) 可调白光照明系统
RU2691638C2 (ru) Осветительное устройство, светодиодная полоска, светильник и способ изготовления осветительного устройства
US7753559B2 (en) Lighting device producing light with adjustable color and color temperature
CN1949507A (zh) 可调整色温的发光二极管装置
KR20060033799A (ko) 색채 조절 가능 조명 소자
CN101060151A (zh) 一种led合成白光的方法
WO2024074449A1 (en) Cct controllable led filament arrangement having led filaments with same light-source off-state colour appearance
JP2020136095A (ja) 照明装置
CN110690206A (zh) 双基色低蓝光的白色led元件以及白色led组件

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication