Fluorescent powderis fluorescent because it contains fluorescent dyes. The following explains the changes that the fluorescent dye molecule undergoes during fluorescence.

With radioactive glow powder, is mixed with radioactive substances in the phosphor, the use of radioactive substances constantly emitting rays to excite the phosphor glow, this type of glow powder glow time is very long, but because of toxic and harmful and environmental pollution, etc., so the appl