基于同时多表面设计原理的非球面成像光学系统初始结构构造方法研究北大核心CSCD

设计非球面光学系统,尤其是含有多个非球面光学表面的光学系统,合理的初始结构可以有效地减少设计工作量,提高后续的优化效率,本文提出利用同时多表面(simultaneous multiple surfaces,SMS)设计原理构建初始结构的方法,并且分析了其在成像光学系统设计中的像差特性,根据分析提出了利用SMS方法开展非球面光学系统初始结构设计的流程。最后使用该方法获得一款激光雷达接收装置的光学系统初始结构,经过进一步优化后,得到了工作中心波长850 nm,系统焦距20 mm,相对孔径为1/1.6,视场角为40°,总长小于30 mm的设计结果,验证了该方法在确定非球面光学系统初始结构方面的可行性。

Research on initial structure construction method of aspheric imaging optical sy stem based on simultaneous multiple surface design principle

A reasonable initial structure can effectively reduce the workload and improve t he subsequent optimization efficiency in the design of aspheric system,especially the optical system with several aspheric surfaces.This paper proposes a method using simultaneous multi ple surfaces (SMS) principle to construct the initial structure.The aberration characteristics of the method in imaging optical system design are analyzed,and the design process of initial structure of aspheric optical system is proposed based on the analysis.Finally,a laser radar receiving optical syst em with working wavelength 850 nm,focal length 20 mm,relative aperture 1/1.6,field of view 40°,a nd total length less than 30 mm is designed by the proposed method,which verifies the feasibility of this method in determining the initial structure of aspheric optical system.