The LED display light pollution imperils the traffic safety brightness "overweight" the mess when ca
Datum:2011-08-16 14:46
technology the physics professor unfoldings says, when the LED display with the same frequency play different advertising, part of the advertising might give someone dazzling feeling, cause tourists mood, psychological discomfort, this should belong to light pollution. During the day, and compared the pupil in the evening put more greatly, so even if the light intensity and the same day, but at night may make people sick.
Peer competition to become more and more bright LED screen objectivel
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