A phosphor comprises an oxide that comprises: at least an element selected from {HEAD ~ the group} consisting of phosphorus and boron; at least a metal selected from the group consisting of elements of Group IIIA, elements of Group IVA, and elements of {TAIL ~ the lanthanide series}; which oxide is co activated with Ce3+ and Tb3+ 
A phosphor comprises an oxide that comprises : at least an element selected from { HEAD ~ the group } consisting of phosphorus and boron ; at least a metal selected from the group consisting of elements of Group IIIA , elements of Group IVA , and elements of { TAIL ~ the lanthanide series } ; which oxide is co activated with Ce3 + and Tb3 +
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH