HIGH EFFICIENT FLUOROPHOR AND LIGHT SOURCE HAVING HIGH EFFICIENT FLUOROPHOR

摘要

PROBLEM TO BE SOLVED: To provide a fluorophor which is well excited with UV irradiation in a range of 370 to 430 nm with high efficiency. SOLUTION: This high efficient fluorophor comprising a nitride silicate having a cation, A and represented by the general formula: Ax Siy Nz is characterized by using Sr as the cation, A and doping the nitride silicate with trivalent Ce acting as an activator.