The research on the appraisal to the road lighting quality should use luminance standard and small targetvisibility level which are more conform to the human eye visual characteristic.
研究道路照明应以更加符合人眼视觉特性的亮度指标和可见度指标对道路照明质量进行评价。
2
In the two actual tunnel, we measured and calculated visibility of the small target under the three light source, and made a visual experimental method of the small target color.
In the aspect of laser guide, when it is low visibility, the light scattering by fogs must affect laser-guided-bomb's work, such as the precision of guide decreases or cannot hit the target.