Long afterglow luminescent material is a kind of excitation energy absorbed Calvin Klein and stored up, when the optical excitation has stopped, then the energy stored in the form of light slowly released and sustainable several hours or even more than a dozen light-emitting materials . Overall, the rare earth activated alkaline earth aluminate the afterglow characteristics of the most superior than the traditional ZnS, Cu, CO luminous paint for more than 10 times higher than that with illumination of light irradiation after lOmin, sustainable LED l2h. Material non-toxic, non-radioactive, harmless to human safety, and unlike other material will produce light-emitting harmful radiation. According to the information reported: in the rehabilitation of the World Trade Center, the use of Lu Ming Group of Dalian, China Light-Storing luminescent materials production, transformation of the building to escape the system. When in 2001 "9.11" incident, the entire building in power, smoke, darkness in the corridor, from Dalian, China Light-Storing the self-luminous safety evacuation instructions played an important role in the system, making at least 18,000 people in 1.5h, the successful from the 110-story skyscraper where two survived. U.S. fire experts believe that this is the Chinese people from the East to create a miracle!
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