Invention Grant
US08502441B2 Light emitting device having a coated nano-crystalline phosphor and method for producing the same 有权
具有包覆纳米晶体荧光体的发光器件及其制造方法

Light emitting device having a coated nano-crystalline phosphor and method for producing the same
Abstract:
A light emitting device includes a light emitting element that emits primary light and a wavelength conversion unit that absorbs part of the primary light and emits secondary light. In the light emitting device, the wavelength conversion unit includes a plurality of types of phosphors that emit secondary light having wavelengths different from each other, and at least one of the phosphors is a covered phosphor covered with a surface film that reflects secondary light emitted from a phosphor other than the covered phosphor.
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