| 简介 |
PROBLEM TO BE SOLVED : To provide a crystalline, α-sialon fluorescent substance efficiently emitting fluorescence which is excited by blue light, is complementary color to blue and shows a high emission intensity and an excellent color rendering property. SOLUTION : The α-sialon fluorescent substance employs an α-sialon of the formula : MxSi12-(m+n)Al(m+n)OnN16-n(wherein M is at least one metal element chosen from Li, Mg, Ca, Y and rare-earth elements other than La and Ce; x=m/δ, provided that δ is an average valence of the metal element M; 0.15COPYRIGHT : (C)2004, JPO |
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