复色光字符屏夫琅禾费衍射的计算机仿真

Computer Simulation of Polychromatic Light Character Screen of Fraunhofer Diffraction

为获得彩色的复色光任意字符屏夫琅禾费衍射图像,以日光为复色光光源,通过构建字符衍射屏矩阵,依据叠加原理计算字符屏夫琅禾费衍射光强分布,基于Matlab软件仿真任意字符屏夫琅禾费衍射.结果表明,仿真图像色彩丰富而逼真,可应用于辅助教学等领域.该方法可仿真复色光任意形状屏的夫琅禾费衍射.

Based on the principle of superposition calculation of diffraction light intensity distribution of Fraunhofer character screenand Matlab software simulation of any character screen on the basis of Fraunhofer diffraction,this paper conducts an experiment to obtainFraunhofer diffraction image of colorful polychromatic light character screen by taking sunlight as a polychromatic light source through theconstruction of the diffraction screen matrix.The result shows that the color of simulated image is rich and vivid,and it can be applied tothe field of auxiliary teaching.This method can simulate polychromatic light with arbitrary shape screen of Fraunhofer diffraction.