Fluorescent material and illumination device
AssigneesSu-Chemical Corp., Kai-Shon Tsai
InventorKai-Shon TSAI
Life of this patent
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Abstract
A fluorescent material represented by the following formula (I): M1yM2nOzCx:M3w (I); wherein M1 is selected from Sc3+, Y3+, La3+, Sm3+, Gd3+, Tb3+, Pm3+, Er3+, Lu3+, and combinations thereof; M2 is selected from Al3+, In3+, Ga3+, and combinations thereof; M3 is selected from Tm3+, Bi3+, Tb+, Ce3+, Eu3+, Mn3+, Er3+, Yb3+, Ho3+, Gd3+, Pr3+, Dy3+, Nd3+, and combinations thereof; and 0.45≦x/n≦0.75, 0.54≦y/n≦0.6, 0.002<w/n≦0.06, and 0.9≦z/n≦1.5. An illumination device including a light emitting element and the aforesaid fluorescent material is also disclosed.
Claims10
A fluorescent material represented by the following formula (I):
- M1yM2nOzCxM3w (I);
- wherein M1 is selected from the group consisting of Sc3+, Y3+, La3+, Sm3+, Gd3+, Tb3+, Pm3+, Er3+, Lu3+, and combinations thereof;
- M2 is selected from the group consisting of Al3+, In3+, Ga3+, and combinations thereof;
- M3 is selected from the group consisting of Tm3+, Bi3+, Tb+, Ce3+, Eu3+, Mn3+, Er3+, Yb3+, Ho3+, Gd3+, Pr3+, Dy3+, Nd3+, and combinations thereof;
- and
- 0.45≦x/n≦0.75, 0.54≦y/n≦0.6, 0.002<w/n≦0.06, and 0.9≦z/n≦1.5.
Dependencies are inferred from the claim text.