Ultraviolet radiation light emitting diode device

Abstract

There is disclosed an ultraviolet radiation device. The device comprises a base portion, a plurality of semiconductor structures connected to the base portion and an ultraviolet radiation transparent element connected to the plurality of semiconductor structures. Preferably: (i) the at least one light emitting diode is in direct contact with the ultraviolet radiation transparent element, or (ii) there is a spacing between the at least one light emitting diode and the ultraviolet radiation transparent element, the spacing being substantially completely free of air. There is also disclosed a fluid treatment system incorporating the ultraviolet radiation device.

1 . A water treatment ultraviolet radiation device comprising:
 a base portion;   a plurality of semiconductor structures connected to the base portion, each semiconductor structure including a reflector configured to direct UV radiation away from said base, each semiconductor structure also including a first semiconductor layer, an active layer, a second semiconductor layer, and a substrate configured to pass the UV radiation therethrough; and   a single, substantially flat, dielectric substrate, ultraviolet radiation transparent element in direct contact with each substrate of the plurality of semiconductor structures, said single, substantially flat, dielectric substrate comprising sapphire and being in direct contact with the water to be treated such that there are no air gaps between (i) each substrate of the plurality of semiconductor structures and (ii) said water to be treated.