Also analyzed are the problems which possibly occur during the design , assembly and alignment , and the relevant resolution method is given . the co - alignment device of the c02 and ld lasers is designed , and co - alignment adjustment technique is brought forward in this dissertation . and the system of infrared primary alignment is also designed 探討了儀器的整體設計、裝配與調試等各個過程中遇到的問題與解決方法,進行了可見紅外共光路的設計,提出了共光路調整技術并設計了紅外干涉的初調系統,效果良好。