DE20317005U1 - LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs - Google Patents
LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs Download PDFInfo
- Publication number
- DE20317005U1 DE20317005U1 DE2003217005 DE20317005U DE20317005U1 DE 20317005 U1 DE20317005 U1 DE 20317005U1 DE 2003217005 DE2003217005 DE 2003217005 DE 20317005 U DE20317005 U DE 20317005U DE 20317005 U1 DE20317005 U1 DE 20317005U1
- Authority
- DE
- Germany
- Prior art keywords
- leds
- light
- reflector
- blue
- holding element
- 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.)
- Expired - Lifetime
Links
- 229910002601 GaN Inorganic materials 0.000 title 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 18
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 2
- 238000004528 spin coating Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
- F21V7/30—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings the coatings comprising photoluminescent substances
-
- 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]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/49105—Connecting at different heights
- H01L2224/49107—Connecting at different heights on the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
-
- 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
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
GEBIET DER ERFINDUNGFIELD OF THE INVENTION
Die vorliegende Erfindung bezieht sich auf eine Vorrichtung einer weißes Licht emittierenden Diode (LED) und im besonderen auf eine Beleuchtungseinrichtung hergestellt mit GaN-LEDs zum Emittieren von weißem Licht.The present invention relates on a device of a white light emitting diode (LED) and in particular manufactured on a lighting device with GaN LEDs for emitting white light.
HINTERGRUND DER ERFINDUNGBACKGROUND THE INVENTION
Lichtemittierende Dioden (LED) gehören zu den wichtigsten Erfindungen in der Geschichte des technologischen Fortschrittes. Wie hinlänglich bekannt, ist eine LED eine Einrichtung, die in der Lage ist, Licht zu emittieren, wenn eine elektrische Potentialdifferenz (Spannung) an die Halbleiter-PN-Verbindung angelegt wird. Die LEDs besitzen den Vorteil eines niedrigen Energieverbrauchs, einer geringen Wärmeerzeugung, einer hohen licht-emittierenden Stabilität sowie einer langen Lebensdauer, so dass sie im weiten Rahmen in vielen Industrieanwendungen eingesetzt werden, wie etwa einer Werbetafel. Die roten, grünen und blauen LEDs werden in verschiedenen Formen und Anordnungen eingesetzt an einer Werbetafel, um dynamische Bilder anzuzeigen. Infolge ihrer hohen Effizienz und Stabilität kommen auch LEDs in großem Rahmen zum Einsatz, um herkömmliche kleine Lichtbirnen zu ersetzen als Indikatoren in Ausrüstungen zur Anzeige des Betriebsstatus wie etwa EIN, AUS, PAUSE oder STAND-BY, wobei eine jeweilige Option einem entsprechenden Status entspricht. LEDs kommen auch zum Einsatz bei der Herstellung von Beleuchtungseinrichtungen, wie etwa Taschenlampen oder Frontbeleuchtungen von Autos oder Fahrrädern.Light emitting diodes (LED) are among the most important inventions in the history of technological progress. How adequate known, an LED is a device that is capable of light to emit when an electrical potential difference (voltage) is applied to the semiconductor PN connection. The LEDs have the advantage of low energy consumption, low heat generation, high light-emitting stability and a long service life, so that they are widely used in many industrial applications like a billboard. The red, green and blue LEDs will be in various forms and arrangements used on an advertising board, to display dynamic images. Due to their high efficiency and stability LEDs also come in large Frames used to conventional to replace small light bulbs as indicators in equipment to display the operating status such as ON, OFF, PAUSE or STAND-BY, where each option corresponds to a corresponding status. LEDs are also used in the manufacture of lighting devices, such as flashlights or front lights of cars or bicycles.
Darüber hinaus werden auch LEDs eingesetzt als Kommunikationsquelle wie etwa als lokales Areal-Netzwerk (LAN). Wenn emittiertes Licht von LEDs in das Ende einer vielmodus-optischen Faser eingespeist wird, ist diese in der Lage, das Licht innerhalb derselben über große Entfernungen zu übertragen.In addition, LEDs are also used used as a communication source such as a local area network (LAN). When light emitted from LEDs in the end of a multi-mode optical Fiber is fed, this is able to keep the light inside the same about size Transfer distances.
Obwohl die Leistungsfähigkeit der LEDs in den vorerwähnten Anordnungen überragend und stabil ist, bestehen einige Widerstände, die zu überwinden sind. Wenn beispielsweise rotes, grünes und blaues LED-Licht in Beleuchtungseinrichtungen eingesetzt wird, ist es schwierig, das rote, grüne und blaue Licht miteinander zu vermischen, um ein weißes Licht zu erzeugen, welches üblicherweise bei der Beleuchtung eingesetzt wird. Da die diesbezügliche Technologie nach wie vor sich in einem Entwicklungsstatus befindet, ist das weiße Licht, welches durch die laufenden Technologien erzeugt wird, normalerweise uneinheitlich und manchmal gemischt mit Licht von anderen Farben. Dementsprechend verlangt der Gesamtbeleuchtungseffekt eine Verbesserung.Although the performance of the LEDs in the aforementioned Outstanding arrangements and stable, there are some resistances that need to be overcome are. For example, if red, green and blue LED light in Lighting equipment is used, it is difficult that red, green and mix blue light together to make a white light to generate, which is usually is used for lighting. Because the related technology is still in development status, that is white Light that is generated by current technologies, usually inconsistent and sometimes mixed with light of other colors. Accordingly, the overall lighting effect requires improvement.
Die
Das weiße Licht, welches durch die vorerwähnte Technologie erzeugt wird, ist jedoch normalerweise unausgeglichen und bildet einen Strahl, der auf der Seite gelb erscheint und blau im Zentrum. Da die herkömmlichen LED-Einrichtungen hergestellt werden durch den direkten Einsatz von gelbem Phosphor auf blauen LEDs, ist das erzeugte weiße Licht uneinheitlich. Darüber hinaus ist die Lebensdauer der Einrichtung verkürzt, da die Wärme, die von der blauen LED erzeugt wird, den gelben Phosphor schädigt. Dies sind bekannte Nachteile und Einschränkungen herkömmlicher LED-Einrichtungen.The white light, which through the aforementioned Technology is generated, however, is usually unbalanced and forms a ray that appears yellow and blue on the side downtown. Because the conventional LED devices are produced by the direct use of yellow phosphorus on blue LEDs, the white light generated is inconsistent. Furthermore the life of the device is shortened because of the heat that generated by the blue LED, damages the yellow phosphor. This known disadvantages and limitations are more conventional LED devices.
Der vorliegenden Erfindung liegt dementsprechend die Aufgabe zugrunde, basierend auf jahrelangen Erfahrungen und Nachforschungen eine Vorrichtung bereitzustellen, welche die vorgenannten Nachteile überwindet.The present invention lies accordingly the task based on years Experience and research to provide a device which overcomes the aforementioned disadvantages.
ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY THE INVENTION
Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Kennzeichen des Hauptanspruches angegebenen Merkmale, wobei hinsichtlich bevorzugter Ausgestaltungen der erfindungsgemäßen Vorrichtung auf die Merkmale der Unteransprüche verwiesen wird. Aufgrund der erfindungsgemäßen Ausgestaltung stellt die LED-Einrichtung im Gegensatz zu herkömmlichen Technologien einen gleichmäßigen Strahl weißen Lichtes bereit.This object is achieved according to the invention by the features specified in the characterizing part of the main claim, with regard to preferred configurations of the device according to the invention referred to the features of the subclaims becomes. Because of the configuration according to the invention sets the LED device in contrast to conventional technologies uniform beam white Light ready.
Im allgemeinen gibt es drei unterschiedliche Annäherungen zur Herstellung weißes Licht abstrahlender LED-Einrichtungen. Die erste Näherung liegt darin, rote, grüne und blaue LEDs einzusetzen zur Erzeugung von weißem Licht. Die zweite Näherung liegt darin, blaue LEDs auf einem gelben Substrat zu erzeugen, wie etwa einem Substrat hergestellt aus ZnSe. Die Mischung von gelbem und blauem Licht führt zu weißem Licht. Die dritte Näherung liegt darin, eine Schicht aus gelbem Phosphor auf den blauen LEDs aufzubringen, was zu einem weißen Licht führt. Die zweite und die dritte Näherung befinden sich hauptsächlich am Markt wegen der geringen Größe und der flexiblen Einsetzbarkeit. Insbesondere ist die dritte Näherung, die das GaN-Material einsetzt, welches langlebiger ist als das ZnSe-Substrat, worauf die LEDs basieren, in stärkerem Maße populär. Trotzdem ist die Lebensdauer der weißen LED-Einrichtungen, die hergestellt werden über die dritte Näherung, nach wie vor kurz wegen der Schädigung des gelben Phosphors durch die Wärme, die von den LEDs erzeugt wird. Dementsprechend setzt die vorliegende Erfindung eine spiegelartige Näherung ein, um die Lebensdauer der LED-Einrichtung zu erstrecken, wie auch die Herstellungskosten zu verringern. Was sogar noch wichtiger ist, liegt darin, dass die sich ergebende Einrichtung ein gleichmäßiges weißes Licht erzeugen kann, welches den gelbblauen Strahl vermeidet, welcher durch herkömmliche Verfahren erzeugt wird.In general, there are three different approaches to making white light emitting LED devices. The first approximation is to use red, green and blue LEDs to generate white light. The second approximation is to create blue LEDs on a yellow substrate, such as a substrate made of ZnSe. The mixture of yellow and blue light leads to white light. The third approximation is to apply a layer of yellow phosphor on the blue LEDs, resulting in a white light. The second and third approximations are mainly on the market because of their small size and flexible usability. In particular, the third approximation using the GaN material, which is more durable than the ZnSe substrate, is what the LEDs are based, becoming more popular. Nonetheless, the lifespan of the white LED devices that are manufactured via the third approximation is still short because of the damage to the yellow phosphor by the heat generated by the LEDs. Accordingly, the present invention employs a mirror-like approach to extend the life of the LED device as well as reduce manufacturing costs. What is even more important is that the resulting device can produce a uniform white light that avoids the yellow-blue beam that is produced by conventional methods.
Im Gegensatz zu herkömmlichen
Verfahren wendet die spiegelartige Näherung den gelben Phosphor
nicht direkt auf den blauen LEDs an. Stattdessen wird eine Schicht
des gelben Phosphors auf dem Reflektor angebracht oder alternativ
auf einen transparenten Film, der dann auf dem Reflektor befestigt wird,
entsprechend den Ausführungsformen,
die in den
Weitere Einzelheiten, Vorteile und erfindungswesentliche Merkmale ergeben sich für den Sachverständigen aus dem Studium der nachfolgenden detaillierten Beschreibung der bevorzugten Ausführungsform unter Bezugnahme auf die beigefügten Zeichnungen.More details, advantages and Features essential to the invention result for the expert studying the following detailed description of the preferred embodiment with reference to the accompanying drawings.
KURZE BESCHREIBUNG DER ZEICHNUNGENSHORT DESCRIPTION THE DRAWINGS
DETAILLIERTE BESCHREIBUNG DER BEVORZUGTEN AUSFÜHRUNGSFORMENDETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Die
Die spiegelartige Näherung, die gemäß der vorliegenden Erfindung zum Einsatz kommt, unterscheidet sich von einer herkömmlichen weißen LED-Einrichtung. Eine herkömmliche weiße LED-Einrichtung projiziert das Licht direkt auf ein Zielobjekt und dementsprechend ist das Gemisch weniger gleichmäßig und erscheint normalerweise gelb-blau. Andererseits reflektiert die spiegelartige Näherung, die gemäß der vorliegenden Erfindung zum Einsatz kommt, das gemischte Licht über einen Reflektor und das reflektierte Licht wird dann auf das Zielobjekt projiziert. Dementsprechend kann die vorliegende Erfindung wirksam die ungleichförmige Mischung des Lichtes eliminieren.The mirror-like approximation, that according to the present Invention is used differs from a conventional one white LED device. A conventional white LED device projects the light directly onto a target object and accordingly the mixture is less even and usually appears yellow-blue. On the other hand, the reflects mirror-like approximation, that according to the present Invention is used, the mixed light via a reflector and the reflected light is then projected onto the target object. Accordingly, the present invention can effectively effect the non-uniform mixture eliminate the light.
Die
Die
Die
Die
Ein weiterer Vorteil der vorliegenden Erfindung liegt darin, dass die Ausgestaltung modularisiert ist. Die Komponente einschließlich des Reflektors, der LEDs und des gelben Phosphors können getrennt ersetzt werden, wenn dies erforderlich ist, ohne dass dadurch die anderen Komponenten beeinflusst werden.Another advantage of the present The invention resides in the fact that the configuration is modularized. The component including of the reflector, the LEDs and the yellow phosphor can be separated to be replaced if necessary without changing the other components.
Eine weiße LED-Einrichtung umfasst ein Halteteil, eine Mehrzahl von LEDs, die auf dem Halteteil befestigt sind, wobei die LEDs darüber hinaus blaue GaN-LEDs einschließen, einen Reflektor mit parabolischer Form, welcher das Halteteil und die Mehrzahl der LEDs einschließt, gelben Phosphor, mit welchem die Oberfläche des Reflektors überzogen ist, welche den LEDs zugewandt ist, sowie ein Halteelement zur Verbindung des Trägerteils und des Reflektors, um die LEDs anzuschließen, wobei das Halteelement und der Reflektor zusammengehalten werden. Das Hauptmerkmal der vorliegenden Erfindung liegt darin, dass die LEDs blaues Licht emittieren, wenn sie unter einer positiven Spannung stehen. Das blaue Licht aktiviert gelben Phosphor, so dass dieser ein gelbes Licht erzeugt, und das blaue Licht, welches mit dem gelben Licht gemischt wird, wird zu einem weißen Licht. Das weiße Licht wird durch den Reflektor zurückgeworfen und auf ein Zielobjekt projiziert.Includes a white LED device a holding part, a plurality of LEDs, which are attached to the holding part with the LEDs above it include blue GaN LEDs, a reflector with a parabolic shape, which the holding part and includes the majority of the LEDs, yellow phosphor, with which the surface of the reflector is coated, which faces the LEDs, as well as a holding element for connection of the carrier part and the reflector to connect the LEDs, the holding element and the reflector are held together. The main feature of present invention is that the LEDs emit blue light when they are under a positive tension. The blue light activates yellow phosphor so that it produces a yellow light, and that blue light, which is mixed with the yellow light, becomes a white one Light. The White Light is reflected back through the reflector and onto a target object projected.
Es soll an dieser Stelle noch einmal ausdrücklich angegeben werden, dass es sich bei der vorangehenden Beschreibung lediglich um eine solche beispielhaften Charakters handelt unter Erläuterung verschiedener Ausführungsformen, wobei verschiedene Abänderungen, Modifikationen und äquivalente Anordnungen möglich sind, ohne dabei den Rahmen der Erfindung zu verlassen.It is meant to be repeated at this point expressly indicated that it is in the foregoing description is just one such exemplary character under explanation different embodiments, with various changes, Modifications and equivalents Arrangements possible are without departing from the scope of the invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003217005 DE20317005U1 (en) | 2003-11-05 | 2003-11-05 | LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003217005 DE20317005U1 (en) | 2003-11-05 | 2003-11-05 | LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20317005U1 true DE20317005U1 (en) | 2004-02-26 |
Family
ID=31969997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003217005 Expired - Lifetime DE20317005U1 (en) | 2003-11-05 | 2003-11-05 | LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20317005U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2844907A1 (en) * | 2012-04-30 | 2015-03-11 | Qualcomm Mems Technologies, Inc. | Array illumination system |
-
2003
- 2003-11-05 DE DE2003217005 patent/DE20317005U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2844907A1 (en) * | 2012-04-30 | 2015-03-11 | Qualcomm Mems Technologies, Inc. | Array illumination system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE112006003111B4 (en) | LED lighting units and arrangements with edge connections | |
DE102006009955B4 (en) | White light source and lighting device using the white light source | |
DE102004063824B4 (en) | Light-emitting diode module with anti-parallel diode chip | |
EP2198196B1 (en) | Lamp | |
DE10260683B4 (en) | LED lighting device | |
DE102009040986B4 (en) | lamp | |
DE202008006325U1 (en) | Heat dissipation arrangement and lamp with this | |
DE112016002349T5 (en) | Light emission device and vehicle lamp with this | |
DE202010017509U1 (en) | Light emitting device and lighting system | |
DE202006013055U1 (en) | Heat dispersion or heat sink module for dispersing heat from light emission elements in a light emitting device such as a lamp | |
DE202006015980U1 (en) | LED signal lights for traffic lights with heat-dissipating arrangement has isothermal plate and heat-dissipating cylinder connected to finned heat-dissipating body | |
EP3167224A1 (en) | Semiconductor lamp | |
DE102012212925A1 (en) | Lens holder for use as e.g. spacer for holding total internal reflection lenses above LED chip in linear light-engine for illuminating cabinet, has cylindrically shaped element including large inner diameter at upper side than at lower side | |
DE19831607A1 (en) | Linear lighting element for image reading device | |
DE20317005U1 (en) | LED device for emitting white light has a holding element and several LEDs fastened on the holding element with blue gallium nitride LEDs | |
DE102014205470B4 (en) | Lighting device with CoB range | |
EP2171352A1 (en) | Lamp | |
DE29914941U1 (en) | Color mixing device working with LEDs | |
WO2015040240A1 (en) | Lamp | |
DE202004011869U1 (en) | Light-emitting diode device, has e.g. pulse-width modulator for supplying current to two antiparallel-connected LEDs | |
DE60303655T2 (en) | Positioning and supply module for light emitting diode | |
DE102015201152A1 (en) | Heat sink for a lighting device | |
DE10344547A1 (en) | Room lighting source, is arranged with circuit board crossing long axis of light source | |
DE102008011818A1 (en) | Festoon lamp and method of making a festoon lamp | |
DE102007006884B4 (en) | LED lamp with socket |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040401 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20070227 |
|
R081 | Change of applicant/patentee |
Owner name: FORMOSA EPITAXY INCORPORATION, TW Free format text: FORMER OWNER: FORMOSA EPITAXY INCORPORATION, LUNTAN, TW Effective date: 20090928 Owner name: LUMENS CO., LTD., KR Free format text: FORMER OWNER: FORMOSA EPITAXY INCORPORATION, LUNTAN, TW Effective date: 20090928 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20100210 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years | ||
R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20120217 |
|
R071 | Expiry of right | ||
R071 | Expiry of right | ||
R082 | Change of representative |
Representative=s name: KANDLBINDER, MARKUS, DIPL.-PHYS., DE |