environmental protection non-toxic non-radioactive light-induced energy storage

Long green luminous luminous luminous rare earth materials are usually divided into non-toxic non-radioactive green glow in the dark stones energy storage luminous and luminous with two types of radioactivity . After light-induced energy storage luminous phosphors by natural light , fluorescent light , ultraviolet light and other radiation, the energy stored in the stop light irradiation , the fluorescence way slowly released, so at night or darkness , can still see the light, lasted for several hours to ten hours .
Luminous powder with a radioactive , glow in the dark gravels incorporation of radioactive substances in the phosphor , the use of radiation emitted by radioactive substances continue to excite phosphors glow, luminous light-emitting such a long time , but because of hazardous and environmental pollution , the application range small .