一、单球面折射成像1.物像公式(1)近轴光半径为R的球面将折射率各为n_1和n_2的两种介质分开,如图1.1所示。过球心C的轴称为光轴,光轴与球面的交点0称为顶点。从O左方光轴上一点S发出的光经球面折射后与光轴交于O右方的点S’。-般而言,S’点的位置将随入射光方向(用它与光轴的夹角α表征)改变而改变。但当入射 First, the single spherical refraction imaging 1. Object formula (1) paraxial light radius R of the spherical refractive index of each n_1 and n_2 of the two media separately, as shown in Figure 1.1. Across the ball axis C axis called the optical axis, the intersection of the optical axis and the spherical 0 is called the vertex. Light emitted from a point S on the optical axis on the left O is refracted by the spherical surface and then intersects the optical axis at a point S ’on the right of O. In general, the position of the point S ’will change as the incident light direction (characterized by its angle α to the optical axis) changes. But when incident