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SOS FILM / SOS FILM

SOS FILM

According to light absorption and light folding principle, you could put the sos film on your phone screen and the sos words will be cast to the mountain locating the far side when you venture into the wilderness at night and encounter dangers, which will extend the range of sos.

University

Guangdong University of Technology

Guangdong University of Technology
Guangzhou, China

Yuanbing Li,
Guangdong University of Technology

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