程序的主要目的是获得光学传递函数，通过光程差获得光瞳函数，之后获得点扩散函数，最终得到光学传递函数。-The main purpose of the program is to obtain an optical transfer function, the pupil function obtained by the optical path difference, after obtaining the point spread function, the finally obtained

常用光瞳函数，矩形函数、圆域函数、正六边形函数、三角形函数的绘制(Commonly used pupil function, including rectangle function, circle function, hexagon function, triangle function)