CAJ | 학술논문

介绍了一种半球空域成像长波红外光学系统的设计。该光学系统采用二次成像结构，有效的压缩了光学系统的径向尺寸。由于该光学系统视场较大，因此采用了F-θ的“非相似”成像方式。利用ZEMAX软件进行了优化设计，合理解决了像面照度均匀性和大视场轴外像差的问题。同时对该光学系统进行了分析评价并给出光学系统的传递函数曲线、点列图等设计结果。该光学系统仅使用六片光学元件，采用两个非球面，全视场角和相对孔径分别为184°和1/1.93，全视场内的传递函数值在20 lp/mm处达到0.45以上，像质优良。光学系统总长为71 mm，最大直径30 mm，光学元件质量仅为45 g，光学系统体积小、质量轻，可适用于多种平台。
개소료일충반구공역성상장파홍외광학계통적설계。해광학계통채용이차성상결구，유효적압축료광학계통적경향척촌。유우해광학계통시장교대，인차채용료F-θ적“비상사”성상방식。이용ZEMAX연건진행료우화설계，합리해결료상면조도균균성화대시장축외상차적문제。동시대해광학계통진행료분석평개병급출광학계통적전체함수곡선、점렬도등설계결과。해광학계통부사용륙편광학원건，채용량개비구면，전시장각화상대공경분별위184°화1/1.93，전시장내적전체함수치재20 lp/mm처체도0.45이상，상질우량。광학계통총장위71 mm，최대직경30 mm，광학원건질량부위45 g，광학계통체적소、질량경，가괄용우다충평태。
A hemisphere long wavelength infrared (LWIR) imaging optical system design is introduced. The secondary imaging structure is adopted in the system to compress the radial size of the system effectively. For wider field of view of the system, F-θdissimilarity imaging mode is adopted. Optimization design is carried by using ZE?MAX software, so the problems such as image illumination uniformity and wide field of view off-axis aberration are solved. At the same time the system is analyzed and evaluated and design results such as transfer function curves and spot diagram are presented. Only 6 pieces of optical components and 2 pieces of aspheric surface are used in the system. The full field of view and relative aperture is 184° and 1/1.93 respectively, the transfer function value in full field of view is more than 0.45 at 20 lp/mm, and good image quality is got. The total length and the longest diam?eter of the system are 71 mm and 30 mm respectively, the weight of the optical components is only 45 g. The optical system has small volume and light weight, which is suitable for a variety of platforms.