摘要 |
<p>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.</p> |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DE CARVALHO ESTEVES, ANA C.;COPIC, ROEL;DE WITH, GIJSBERTUS;MAREE, CHRYSOSTOMUS, H., M.;VAN DER VEEN, NIELS;BROKKEN-ZIJP, JOSEPHINA, C., M.;LAVEN, JOZUA |