本文研究球面波透过介质层的传播。介质的两面是球面(凹面或凸面),球面的中心在相对于辐射源点的任意位置。用几何光学理论确定的场解是以简单闭公式给出的。特别注意了把入射球面波束变为聚焦波束的介质层的透镜效应。 This paper studies the propagation of spherical waves through the media. Both sides of the media are spherical (concave or convex) with the center of the sphere at any point relative to the radiation source. The field solution determined by the theory of geometrical optics is given by the simple closed formula. Special attention is paid to the lens effect of changing the incident spherical beam to the dielectric layer of the focused beam.