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在折衍混合光学系统的加工和装配过程中，折、衍器件间的对中精度严重影响混合器件的质量和性能，但是由于衍射器件与传统折射器件的显著差异，传统的对中手段已不再适用，如何简便实现二者的精确对中是混合光学系统实用化过程中亟待解决的问题之一本文提出利用干涉原理简便地实现衍射器件与折射器件的高精度对中，理论分析和实验结果表明该对中装校方法是有效可行的，可以满足光学系统的对中要求
During the process of assembling and disassembling the hybrid optical system, the accuracy of the alignment and the decentering devices seriously affects the quality and performance of the hybrid device. However, due to the significant difference between the diffractive device and the traditional refractive device, the traditional alignment method has not And then, how to achieve the accurate alignment between the two is one of the most urgent problems to be solved in the practical application of the hybrid optical system. In this paper, the high accuracy alignment, theory analysis and experiment of diffraction devices and refracting devices The results show that the method of assembling the center is effective and feasible, which can meet the requirements of the optical system.