Luminescent
material glow in the dark stone generally divided into two kinds: one kind is material is
heated, the heat and light, and the other is a material to absorb energy
and are excited state (non steady state), and then Phosphorescent Ceramic return to the ground
state of the process, in order to energy released in the form of light.
Using the second watch the phosphor coating is the use of the principle
of the fluorescent material of light emission. Such as daily use, of
course, in addition to the fluorescent lamp, on the screen, such as TV
sets and computers is a principle of the second light.
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