Patent ID: 8154190

Claim:
A light emitting device, comprising: a light source comprising a light emitting semiconductor element which emits ultraviolet light; and a light emitting part comprising a resin layer comprising a plurality of phosphors comprising blue emitting, green emitting, and red emitting phosphors, said phosphors being dispersed in the resin layer and emitting white light when excited by ultraviolet light emitted from the light source, wherein each combination of any two of said blue-emitting, green emitting, and red emitting phosphors satisfies a condition represented by an expression: −0.2<{( D 1) 2 ×w 1}−{( D 2) 2 ×w 2}<0.2, where D1 (μm) and w1 (g/mm 3 ) are an average particle size and a density, respectively, of one phosphor among the plurality of phosphors, and D2 (μm) and w2 (g/mm 3 ) are an average particle size and a density, respectively, of another phosphor, and wherein the plurality of phosphors are preliminarily bound and integrated by an inorganic binder to form integrated particles before being dispersed in the resin layer, and are present in the resin layer as said integrated particles, and wherein a maximum value (Δx, Δy) of color difference (absolute value) between emission chromaticity (x, y) and emission chromaticity (x1, y1) satisfies conditions of Δx<0.05 and Δy<0.05, where (x, y) is emission chromaticity measured directly above the light source and (x1, y1) is emission chromaticity measured for each of front lights and side leakage lights in all directions from the light emitting device.