Polymeric wavelength converting elements

A.C. Carvalho Esteves, de (Inventor), R. Copic (Inventor), G. With, de (Inventor), C.H.M. Maree (Inventor), N. Veen, van (Inventor), J.C.M. Brokken-Zijp (Inventor), J. Laven (Inventor)

Research output: PatentPatent publication

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Abstract

A wavelength converting element (104), typically for a LED (101), is provided, comprising luminescent particles (105) dispersed in materix (106) comprising crosslinked polysiloxane. Crosslinked polysiloxane are termperature 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.
Original languageEnglish
Patent numberWO2010032179
Publication statusPublished - 25 Mar 2010

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