POLYMERIC WAVELENGTH CONVERTING ELEMENTS

A wavelength converting element (104), typically for a LED (101), is provided, comprising luminescent particles (105) dispersed in a matrix (106) comprising crosslinked polysiloxane. Crosslinked polysiloxanes are temperature stable, typically up to temperatures above 300° C., meaning that they are s...

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Bibliographische Detailangaben
Hauptverfasser:	DE CARVALHO ESTEVES ANA C, COPIC ROEL, DE WITH GIJSBERTUS, BROKKEN ZIJP JOSEPHINA C. M, VAN DER VEEN NIELS, LAVEN JOZUA, MAREE CHRYSOSTOMUS H. M
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	A wavelength converting element (104), typically for a LED (101), is provided, comprising luminescent particles (105) dispersed in a matrix (106) comprising crosslinked polysiloxane. Crosslinked polysiloxanes are temperature stable, typically up to temperatures above 300° C., meaning that they are stable under normal operating conditions of light emitting diodes. Further, crosslinked polysiloxanes are stable towards exposure to light, meaning that they will not degrade/discolor as a consequence of high intensity light exposure. The polymeric wavelength converter can easily be shaped in different forms. This may lead to better outcoupling of the light from a LED-converter system.