小型化全景系统的杂散光分析与抑制方法研究

由于全景环带光学系统的头部单元结构形式复杂，内部光路经过多次反射与折射，杂散光情况比较严重，因此全景环带光学系统设计过程中对杂散光的分析尤为重要。文中着重分析全景环带光学系统头部单元中产生杂散光的形式，对未经全景环带光学系统头部单元反射的杂散光建立消杂光数学模型，在此基础上对全景环带光学系统行了优化设计；对全景环带光学系统中头部单元胶合面反射的杂散光采用一种凸向像面的弯月胶合镜的形式进行抑制，并通过ASAP软件建模仿真。仿真结果显示，杂散光能量降低90%，证明采用的结构形式和消杂光数学模型有效地抑制了杂散光的产生。

Analysis and suppression of stray light in miniaturized panoramic system

Due to the complex structure of the head unit for the panoramic ring optical system, the internal optical path is reflected and refracted for many times, which results in a serious condition of the stray light. Therefore, in the design process of the panoramic ring optical system, the analysis of the stray light is very important. The form of the stray light of the head unit for the panoramic ring optical system was analyzed, and the mathematical model of the stray light elimination was established for the stray light which was not reflected by the head unit of the panoramic ring optical system. On this basis, the panoramic ring optical system was optimally designed. The stray light reflected by the head unit cementing surface of the panoramic ring optical system was suppressed by a meniscus adhesive mirror with convex image surface, and modeled as well as simulated by the ASAP software. The simulation results show that the stray light energy is reduced by 90%, which proves that the adopted form and the mathematical model of the stray light elimination can effectively suppress the generation of the stray light.