The main works in this paper is that, by calculating Points Spread Function(PSF) and simulating the forming of images of monochromatic light and ideality geometrical optics on the computer, we have simulated successfully DOE imaging process.

• 在计算机上通过模拟点扩散函数（Points Spread Function简称PSF）、理想几何光学成像、单色光成像，成功地模拟了doe的成像过程。