According to one aspect of {TAIL ~ the present invention}, {HEAD ~ the phosphor} has a formula of PO4; wherein 0<x, y<1; 0<x+y+z<1; and 0.3<z <1 
According to one aspect of { TAIL ~ the present invention } , { HEAD ~ the phosphor } has a formula of PO4 ; wherein 0 < x , y<1 ; 0 < x+y+z<1 ; and 0.3 < z < 1
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH