光学黑箱问题通常是已知黑箱外入射光线和出射光线的方向，来确定箱内光学元件的性质及组合方式，根据反射、折射定律以及各光学元件对光线作用的特点，我们把它归纳为下列四种类型．１．会聚发散型光线在箱内会聚或发散，箱内应是凸透镜或凹透镜，若出射光线与入射光线上下对 The problem of the optical black box is usually the direction of the incident light and the outgoing light outside the known black box to determine the properties and the combination of the optical components in the box. According to the characteristics of the reflection and refraction laws and the effects of the optical components on the light, we summarize it as follows: Four types. 1. The converging divergent rays converge or diverge in the box. The box should be a convex lens or a concave lens. If the emergent rays and the incident rays face up and down