Results: the best imagine edge effect and visual sense definition for redfreelight picture contrast is 0.87. Grey brume is the second important parameter.
结果：无赤光像反差为0.87时影像边缘效应、视觉清晰度最佳，灰雾为第二位。
2
The energy of light varies across the spectrum (blue light is more energetic than red) but only a certain amount of energy is needed to knock an electron free.
光谱中光的能量是不同的(蓝光比红光更具能量)，但是只需一种确定的能量来碰触电子使其脱离。
3
In 7, wedding convoy in the moving process, must strictly abide by the traffic regulations, not many people by car, free running the redlight.