AN LED DEVICE COMPRISING A COOLING LIQUID WITH SUSPENDED PHOSPHOR PARTICLES

摘要

A light emitting unit (1) comprises a lighting vessel (3) for containing a liquid material (29), and a light source comprising at least one light emitting diode (9), at least the light emitting part (11) of the light emitting diode (9) being positioned in the lighting vessel (3) to be in heat conductive connection with the liquid material (29). The lighting vessel (3) comprises a liquid inlet (13) and a liquid outlet (15). In an embodiment the lighting vessel (3) is connected by the liquid outlet (15) and the liquid inlet (13) to a circuit comprising a heat transfer surface (19).