LIGHT-ACCUMULATING FLUORESCENT MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a light-accumulating fluorescent molded article having excellent light-resistance and weather resistance, keeping the persistence characteristic over an extremely long period and having easy moldability and high durability. SOLUTION: The objective light-accumulating fluorescent molded article is produced by adding an aluminum phosphate such as aluminum biphosphate or aluminum metaphosphate to light-accumulating fluorescent material powder containing an alkaline earth metal aluminate as a matrix crystal and a rare earth element added to the matrix as an activation agent and molding the obtained mixture.