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When happen fire, the space is full of smoke. So we can not see the way even death . The Vital Direction is combining the smoke detector and directional projection. When
The Vital Direction detects the smoke, in addition to start the water sprinkler,
it also can project the direction of escape. Because the light source is the Light Amplification by Stimulated Emission of Radiation, it able to penetrate the smoke.
Even though have more the smoke, all the existent can see the directional indication clearly on the ground, and increase the survival rate.
Taichung City, Taiwan
JIA-HAO,YOU HAN-YI,WANG JIAN-CHENG,LIN