本文提出和实现了在附有光栅的成像透镜和三个光谱原色滤色片组成的简单成像系统中,能把彩色图像分解为三个分离的红、绿、蓝原色像,记录在黑白底片上。把记录的分色黑白片置于该成像系统中,即可再现原彩色图像。实验结果与理论分析相符。所用设备简单、操作方便、造价低廉。 This paper presents and implements a simple imaging system consisting of an imaging lens with a grating and three spectral primary color filters, which can decompose a color image into three separate primary colors of red, green and blue, recorded on a black and white film . The recorded color separation black and white film placed in the imaging system, you can reproduce the original color image. The experimental results are in line with the theoretical analysis. Equipment used is simple, easy to operate, low cost.