NOVEL FLUORESCENT SUBSTANCE USED FOR LIGHT SOURCE OF WHITE LIGHT AND ITS PRODUCTION METHOD

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PROBLEM TO BE SOLVED : To adjust the color temperature of a white light emitting diode to effectively improve its color rendering property. SOLUTION : A novel fluorescent substance to be used is provided, which contains a chlorine borate compound activated by a rare earth ion and is represented by the general formula : (M1-m-nCemEun)2BO3X (wherein M is composed of at least one of Ca, Sr, and Ba; X is composed of at least one of Cl and Br; 0≤m≤0.5; and 0≤n≤0.5). COPYRIGHT : (C)2009, JPO&INPIT