Patent ID: 7332855

Claim:
A phosphor blend whose CIE color coordinates are located inside a triangular area on a CIE chromaticity coordinate system whose angular points (0.15, 0.03), (0.19, 0.63) and (0.67, 0.33), and which comprises three phosphor materials represented by the formulae A 5 (PO 4 ) 3 Cl:Eu 2+ (where A is at least one element selected from Sr, Ca, Ba and Mg), D 2 SiO 4 :Eu (where D is at least one element selected from Ba, Sr and Ca) and G 5 Eu S (WO 4 ) 2.5+1.5S :Sm (where G is at least one element selected from Li, Na and K; and s is a number between 1 and 5).