Ultraviolet radiation light emitting diode device
AssigneeTrojan Technologies Inc.
InventorsDouglas G. Knight, Jim Fraser, Michael Sasges
Life of this patent
Estimating the term…
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.
Claims53
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.
A water treatment ultraviolet radiation device comprising:
- a base portion;
- a plurality of UV LEDs coupled to the base portion, each LED including a reflector configured to direct UV radiation away from said base, each LED comprising a first semiconductor layer, an active layer, a second semiconductor layer, and a substrate configured to pass the UV radiation therethrough;
- a single, substantially flat, dielectric substrate, ultraviolet radiation transparent element in direct contact with each substrate of the plurality of LEDs, said single, substantially flat, dielectric substrate comprising a layer including sapphire and a layer including quartz, said layer including quartz being in direct contact with the water to be treated such that there are no air gaps between (i) each substrate of the plurality LEDs and (ii) said water to be treated.
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;
- 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
- a single quartz layer having one surface in direct contact with said single, substantially flat, dielectric substrate, ultraviolet radiation transparent element, 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.
Dependencies are inferred from the claim text.