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Influence risks of the led panel light on an operator's health

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Figure

Figure 1. Decreased melatonin in blood (a) and drowsiness (b) when  using different types of computer screens
Figure 2. Time of eye(s) reaction and changes in EEG parameters (b) when  using different types of computer screens
Figure 3. Attention span (a), change in time perception (b) and learning  ability (c) under exposure to different types of computer screens

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