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In our daily life, when the brightness of the light is not at the same time, to the person's visual organ sensitivity are also different. Brightness have larger changes, susceptibility change as well. The transition of dark adaptation need a longer time. By the light into the dark. Start all can't see, over a period of time to see the outline gradually.We went back to the bedroom after lights out, or to another place, his eyes will enter a state of dark adaptation after turn off the light, dark, brought hidden dangers to the safety of people's life. Delay to turn off the lights 7 seconds can solve this problem, let an eye get buffe

University

Jiangxi University of Finance and Economics

Jiangxi University of Finance and Economics
No.665,China, China

Jiayuan Liang,
Jiangxi University of Finance and Economics

Yonghao Zheng,
Jiangxi University of Finance and Economics

Zongbao Wu,
Jiangxi University of Finance and Economics

Shengjiang Li,
Jiangxi University of Finance and Economics