GLASS-COATED LIGHT-ACCUMULATING MATERIAL AND METHOD FOR PRODUCING GLASS-COATED LIGHT-ACCUMULATING MATERIAL

摘要

A glass-coated light-accumulating material having excellent water resistance and having excellent luminescence properties for a long time period, and an efficient method for producing such a glass-coated light-accumulating material are provided. Disclosed are a glass-coated light-accumulating material formed by incorporating a metal aluminate salt as a light-accumulating material into a glass component including a zinc phosphate glass as a main component; and a method for producing such a glass-coated light-accumulating material, in which the zinc phosphate glass includes P 2 O 5 , ZnO, and R 2 O (wherein R = Na or K) as main components, and the melting point of the zinc phosphate glass is adjusted to a value within the range of 600°C to 900°C.