Patent ID: 7820075

Claim:
A phosphor composition with self-adjusting chromaticity, the composition comprising: a first phosphor configured such that its emission intensity increases with increasing excitation wavelength; and a second phosphor configured such that its emission intensity decreases with increasing excitation wavelength; wherein the first phosphor is a silicate-based orange phosphor selected from the group consisting of Sr 3 Eu 0.06 Si 1.02 O 5 (F,Cl) 0.18 , Sr 2.94 Ba 0.06 Eu 0.06 Si 1.02 O 5 (F,Cl) 0.18 , and (Sr 0.9 Ba 0.1 ) 2.76 Eu 0.06 Si 1.02 O 5 (F,Cl) 0.18 .