本文介绍了用光线追踪法设计镜面反光镜,并用例子进行了说明。光线追踪法的实质就是按照反光镜上一定区域内入射光通量分布比例和反射光通量分布比例对等的原则,确定出每一条入射光线所对应的反射光线的方向,并求出为实现该目的所需的切线(切面),进而求出内切于这些切线的曲线(曲面),从而完成反光镜的设计。 This article describes the use of ray tracing mirror mirror design, and with the example described. The essence of the ray tracing method is to determine the direction of the reflected light corresponding to each incident ray according to the principle that the incident light flux distribution ratio and the reflected light flux distribution ratio are equal in a certain area of ​​the reflecting mirror, Of the tangent (tangent), and then find the tangent to these tangent curve (curved surface), thus completing the design of the mirror.