| 摘要 |
PROBLEM TO BE SOLVED: To provide a spherical phosphor particle which has both of transparency, which is enough to form a transparent phosphor layer when sealed by a transparent resin or glass, and high packability, which is enough to keep the amount of a sealant low in durability to be used to a minimum, and excellent sphericity and to provide a method for manufacturing the spherical phosphor particle, and a resin composition and a glass composition each containing the spherical phosphor particle. SOLUTION: The spherical phosphor particle contains A (A is one or more elements selected from Al, Ga, Ge, W, P, V, Zn, Si, B, Mg, Ca, Ba, Sr and Sc), Ln (Ln is one or more elements selected from Y, Gd, La, Sm, Dy, Ho, Er, Yb and Lu), O and R as an activator (R is one or more elements, which are selected from Eu, Tb, Ce, Sm, Tm, Pr, Nd, Dy, Ho, Er, Yb, Mn, Ti, Fe, Cr and Pb and are the elements other than the elements to be selected as Ln) being an activator as principal components and has an amorphous phase based on Ln, O and R being the activator as the principal phase and 1.0-1.1 average ratio of (the long side) to (the short side). COPYRIGHT: (C)2009,JPO&INPIT |
