Illumination devices comprising white light emitting diodes and diode arrays and method and apparatus for making them
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Citation (published version)Greg Blonder, Edmar Amaya. "Illumination devices comprising white light emitting diodes and diode arrays and method and apparatus for making them." Patent WO-2007005013-A1.
In accordance with the invention, an illumination device comprises a substrate (103) having a surface and a cavity in the surface. At least one light emitting diode (“LED”) is mounted within the cavity (104), and a monolayer comprising phosphor particles overlies the LED. The phosphor monolayer (106) is adhered to the LED by a monolayer of transparent adhesive material (105). An optional optical thick layer of transparent material overlies the phosphor monolayer to encapsulate the LED and optionally to form a lens. Methods and apparatus for efficiently making the devices are disclosed.