That way, we avoid the problem of what is called light trespass, where light escapes from the area, for example, a parking lot, that it is supposed to illuminate and goes, for instance, into nearby windows or roads.
这样,我们就避免了所谓的光侵入问题,即光线从本应照亮的区域(例如停车场)逸出,进入附近的窗户或道路。