The angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction. 在一个入射点一条折射线与垂直于表面的线之间的夹角。
Accordingly, the first-order modified formula for transmitted intermediate points and refracted points is derived and whole ray-path can be computed for refracted ray iteratively segment by segment. 据此即可分别推导出透射中间点和折射点的一阶修正公式,进行折射线逐段迭代计算求出整条射线路径。
In a standing coordinate system, general refracted ray tracing formulas for an uniaxial crystal are given in this paper. 本文在固定坐标系中推导了任一空间光线入射到单轴晶体上时折射光线方向矢的一般公式。