介绍了相移Rugate薄膜空间滤波器的基本结构和原理, 设计了相移Rugate薄膜滤波器，根据实际制备的条件进行了误差分析，给出了制备技术需要达到的精度和所需要的薄膜材料的消光系数，计算了相应的损耗，并分析了空间滤波器内部的电场分布。

The basic structure and principles of phase-shift Rugate thin spatial filter is presented. The phase-shifted Rugate film filter is designed and the error analysis is prepared in accordance with the actual conditions. The corresponding loss and extinction coefficient and the preparation of technical precision are discussed to achieve excellent performance for the preparation of the thin film. The corresponding loss and internal electric field of the phase-shift Rugate film filter is calculated.