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龙虾眼光学是解决大视场高能射线聚焦的关键技术。从成像光学的视角考察了龙虾眼光学系统的成像原理,制作完成了基于Schmidt结构的改进型龙虾眼光学透镜原理样机,并对该系统在可见光波段的性能进行了测试。该龙虾眼透镜由厚度为300μm的抛光铝板作为反射工作面,反射面成扇形排布,并具有完全对称的球形结构;反射面间夹角由特殊加工的角间距27.6′的楔板保证。原理样机的有效焦距为65 mm,中心张角为17.48°×17.48°,其在空间各个方向上的成像能力几乎相同,可以满足空间大视场探测系统的任务需求。
Lobster ophthalmology is the key technology to solve the problem of high energy ray focusing in large field of view. The imaging principle of the lobster optics system was investigated from the perspective of imaging optics. The improved prototype prototype of lobster - eye optical lens based on Schmidt structure was completed and the performance of the system in the visible light band was tested. The lobster eye lens consists of a polished aluminum plate with a thickness of 300 μm as the reflecting working surface, the reflecting surfaces are arranged in a fan shape and has a completely symmetrical spherical structure; the angle between the reflecting surfaces is ensured by specially-processed 27.6 ’angular spacing. The principle prototype has an effective focal length of 65 mm and a center aperture of 17.48 ° × 17.48 °. Its imaging capability in almost all directions of space is almost the same, which can meet the mission requirements of a large space field detection system.