该函数用于将近场光场图像投影到物镜的像平面上。输入为三通道二维矩阵（近场电场信息），通过波动光学仿真软件得到；输出为二维矩阵。可以在用户定义区定义放大倍数、数值孔径和离焦距离。(This function is used to project the near-field image onto the image plane of the objective lens. The input is a three channel two-dimensional matrix (near-field