DE202004020786U1 - Light emitting device, has phosphor excited to emit light having distinct wavelength, where distinct light is blended with blue, green and red lights emitted from light sources, and blended light is released to obtain white light - Google Patents
Light emitting device, has phosphor excited to emit light having distinct wavelength, where distinct light is blended with blue, green and red lights emitted from light sources, and blended light is released to obtain white light Download PDFInfo
- Publication number
- DE202004020786U1 DE202004020786U1 DE202004020786U DE202004020786U DE202004020786U1 DE 202004020786 U1 DE202004020786 U1 DE 202004020786U1 DE 202004020786 U DE202004020786 U DE 202004020786U DE 202004020786 U DE202004020786 U DE 202004020786U DE 202004020786 U1 DE202004020786 U1 DE 202004020786U1
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- Germany
- Prior art keywords
- light
- phosphor
- blended
- distinct
- blue
- 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.)
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052771 Terbium Inorganic materials 0.000 claims description 2
- 239000012190 activator Substances 0.000 claims description 2
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 238000009877 rendering Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
HINTERGRUND DER NEUERUNGBACKGROUND THE INNOVATION
(a) Gebiet der Neuerung(a) area of innovation
Die Neuerung betrifft eine Licht emittierende Vorrichtung und insbesondere eine solche Licht emittierende Vorrichtung, die drei Licht emittierende Dioden (LEDs) und einen Leuchtstoff mit YAG:Tb3+ aufweist. Der Leuchtstoff wird durch Absorbieren von Licht aus ersten und zweiten Lichtquellen erregt, um ein ausgeprägtes Licht zu emittieren. Das ausgeprägte Licht wird mit einem roten Licht aus der dritten Lichtquelle und nicht erregtem blauem Licht aus den ersten und zweiten Lichtquellen gemischt, und es wird ein gemischtes Licht ausgelöst.The innovation relates to a light-emitting device, and more particularly to such a light-emitting device having three light-emitting diodes (LEDs) and a phosphor having YAG: Tb 3+ . The phosphor is excited by absorbing light from first and second light sources to emit a pronounced light. The distinct light is mixed with a red light from the third light source and unexposed blue light from the first and second light sources, and a mixed light is released.
(b) Beschreibung des Standes der Technik(b) Description of the state of the technique
In
Verbindung mit
Zum
Herstellen einer weißes
Licht emittierenden Vorrichtung mit einer Wellenfänge, die
nahe der von natürlichem
Sonnenlicht (weißem
Licht) ist, schlägt
die taiwanesische Patentanmeldung Nr. 383508 eine Licht emittierende
Vorrichtung und eine Display-Vorrichtung vor, bei der eine blaues
Licht emittierende Diode als eine blaue Lichtquelle zur Erregung
des Leuchtstoffs dient, derart, dass der erregte Leuchtstoff ein
Licht emittiert, das eine Wellenlänge unterschiedlich von der
des blauen Lichtes hat. Weißes
Licht wird erhalten, wenn das unterschiedliche Licht mit dem nicht
erregten blauen Licht, das von der Lichtquelle emittiert wird, gemischt
wird. Nach
Deshalb ist es für vorliegende Neuerung von entscheidender Bedeutung, wie ein weißes Licht erzielt werden kann, das dem natürlichen Sonnenlicht angenähert ist.Therefore is it for present innovation of crucial importance, like a white light can be achieved, the natural Sunlight approximated is.
BESCHREIBUNG DER NEUERUNGDESCRIPTION THE INNOVATION
Mit der Neuerung wird eine Licht emittierende Vorrichtung vorgeschlagen, die zwei Lichtquellen zum Erregen eines Leuchtstoffes mit YAG:Tb3+ verwendet, um Licht mit Wellenlängen zu erzeugen, die von denen verschieden sind, die durch die beiden Lichtquellen emittiert werden. Die beiden unterschiedlichen Licht-Wellenlängen werden mit Teilen aus den beiden Lichtquellen und einem Licht aus einer anderen unabhängigen Lichtquelle gemischt, und es wird ein gemischtes Licht ausgelöst, um ein weißes Licht mit einem verbesserten Farbwiedergabe-Index und ein Spektrum, das dem des Sonnenlichtes ähnlich ist, zu erzielen.With the innovation, there is proposed a light-emitting device which uses two light sources to excite a phosphor with YAG: Tb 3+ to produce light having wavelengths different from those emitted by the two light sources. The two different light wavelengths are mixed with parts from the two light sources and a light from another independent light source, and a mixed light is triggered to produce a white light with an improved color rendering index and a spectrum similar to that of sunlight is to achieve.
Nach
den
mindestens drei Licht emittierende Quellen und einen Leuchtstoff,
wobei die drei Lichtquellen durch die folgenden ersten, zweiten
und dritten Licht emittierenden Dioden (LEDs) mit unterschiedlichen
Wellenlängen
und entsprechende stromleitende Pins der ersten, zweiten und dritten
LEDs, die mit einer gedruckten Leiterplatte verlötet sind, bestimmt sind, nämlich
eine
erste Lichtquelle A durch mindestens eine erste LED gebildet ist,
die in der Lage ist, blaues Licht mit einer Wellenlänge im Bereich
zwischen 360 nm und 480 nm zu emittieren,
eine zweite Lichtquelle
B, die durch mindestens eine zweite LED gebildet ist, die in der
Lage ist, ein blaues bis grünes
Licht mit einer Wellenlänge
zwischen 480 nm und 570 nm zu emittieren,
eine dritte Lichtquelle
R, die durch mindestens eine dritte LED gebildet ist, die ein rotes
Licht mit einer Wellenlänge
zwischen 585 nm und 780 nm emittiert, und
einen Leuchtstoff,
der vorwiegend aus YAG:Tb3+ besteht und
Terbium als einen Aktivator benutzt.After the
at least three light emitting sources and a phosphor, the three light sources being characterized by the following first, second and third light emitting diodes (LEDs) of different wavelengths and corresponding current conducting pins of the first, second and third LEDs soldered to a printed circuit board, are determined, namely
a first light source A is formed by at least one first LED capable of emitting blue light having a wavelength in the range between 360 nm and 480 nm,
a second light source B formed by at least one second LED capable of emitting a blue to green light having a wavelength between 480 nm and 570 nm,
a third light source R formed by at least one third LED emitting a red light having a wavelength between 585 nm and 780 nm, and
a phosphor consisting primarily of YAG: Tb 3+ and using terbium as an activator.
Der YAG:Tb3+ Leuchtstoff nimmt Licht auf, das aus den ersten und zweiten Lichtquellen A und B austritt und so erregt wird, dass ein ausgeprägtes Licht mit Wellenlängen zwischen 500 nm und 585 nm emittiert wird.The YAG: Tb 3+ phosphor absorbs light emerging from the first and second light sources A and B and is excited to emit a distinct light having wavelengths between 500 nm and 585 nm.
Gemäß der Neuerung ist der YAG:Tb3+ Leuchtstoff nach der Neuerung mindestens mit einer, zwei oder drei LEDs mindestens einer der ersten, zweiten und dritten LEDs verbunden.According to the innovation, after the innovation, the YAG: Tb 3+ phosphor is connected to at least one, two or three LEDs of at least one of the first, second and third LEDs.
KURZBESCHREIBUNG DER ZEICHNUNGENSUMMARY THE DRAWINGS
DETAILLIERTE BESCHREIBUNG DER BEVORZUGTEN AUSFÜHRUNGSBEISPIELEDETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Nach
den
Wenn
die dritte LED
Wenn
in ähnlicher
Weise die ersten, zweiten und dritten LEDs
Die vorbeschriebenen Ausführungsformen haben lediglich beispielhaften Charakter zur Erläuterung der Neuerung und es existieren eine Vielzahl von Modifikationen, die vom Fachmann variiert und abgeändert werden können, ohne dass vom Wesen der Neuerung, wie in den Schutzansprüchen dargelegt, abgewichen wird.The have previously described embodiments merely exemplary character to explain the innovation and it There are a variety of modifications that varies by the person skilled in the art and modified can be without being aware of the nature of the innovation, as set out in the claims for protection, is deviated.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW092133421 | 2003-11-27 | ||
TW092133421A TWI263356B (en) | 2003-11-27 | 2003-11-27 | Light-emitting device |
DE102004023110A DE102004023110A1 (en) | 2003-11-27 | 2004-05-11 | Light emitting device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004020786U1 true DE202004020786U1 (en) | 2006-03-02 |
Family
ID=36062553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202004020786U Expired - Lifetime DE202004020786U1 (en) | 2003-11-27 | 2004-05-11 | Light emitting device, has phosphor excited to emit light having distinct wavelength, where distinct light is blended with blue, green and red lights emitted from light sources, and blended light is released to obtain white light |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004020786U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008053012A1 (en) * | 2006-11-03 | 2008-05-08 | Lemnis Lighting Patent Holding B.V. | Use of phosphor led's for fine tuning the performance of a lighting assembly |
-
2004
- 2004-05-11 DE DE202004020786U patent/DE202004020786U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008053012A1 (en) * | 2006-11-03 | 2008-05-08 | Lemnis Lighting Patent Holding B.V. | Use of phosphor led's for fine tuning the performance of a lighting assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20060406 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20070809 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20101201 |