| 摘要 |
A lighting source capable of producing white light using a semiconductor radiation source. The semiconductor radiation source may be an ultraviolet ("UV") light emitting diode ("LED") device that emits light at a short wavelength, e.g., near-violet or ultraviolet light. A thin film of phosphor may be deposited or coated on the surface of the UV LED or positioned directly above the UV LED. The lighting source may also include an UV reflector radiationally coupled to the thin phosphor layer that allows visible white light emitted from the thin phosphor to pass through and reflects shorter wavelength light back to the thin phosphor layer. |
