Glasses provided with luminous material

文件类型：PDF文档
文件大小：43K
PROBLEM TO BE SOLVED : is provided on a part of the surface of the phosphorescent material to emit fluorescence in the glasses, can be given a bright fluorescent immediately recognizable even in the dark. SOLUTION : the groove 9 is formed on the surface, and a recessed groove in the aluminate compound of a rare earth element added essentially · immunostimulator firing a phosphorescent material 3, and a surface protective transparent clear coating 8 is applied. Selected drawing : fig. 2