摘要：针对提升多尺度成像系统的分辨率以满足对远距离目标精确识别的需求,从提升主镜焦距的角度出发,本文提出一种基于天塞结构主镜的多尺度长焦成像系统设计,分析了为满足次级镜头的线性排布而需要对主镜添加的两个约束条件,针对次级镜头阵列中随离轴角增加使系统在对应视场成像质量下降的问题,对邻近区域次级镜头进行协同优化,同时在离轴位置次级镜头的优化中应用自由曲面面型完成像差校正。所设计系统不同视场区域成像的MTF曲线一致性较好,表明系统在全视场范围内成像质量理想。采用天塞结构主镜设计的多尺度成像系统,其空间分辨率达14μrad,相较于共心球透镜的多尺度系统有显著提高。

摘要：Polymer nanocomposites have a great potential to be a dominant coating material in a wide range of applications in the automotive,aerospace,ship-making,construction,and pharmaceutical ***,how to realize design sustainability of this type of nanostructured materials and how to ensure the true optimality of the product quality and process performance in coating manufacturing remain as a mountaintop *** major challenges arise from the intrinsic multiscale nature of the material-process-product system and the need to manipulate the high levels of complexity and uncertainty in design and manufacturing *** this work,the challenging objectives of sustainable design and manufacturing are simultaneously accomplished by resorting to multiscale systems theory and engineering sustainability *** principal idea is to achieve exceptional system performance through concurrent characterization and optimization of materials,product and associated manufacturing processes covering a wide range of length and time *** modeling and simulation techniques ranging from microscopic molecular modeling to classical continuum modeling are seamlessly *** integration of different methods and theories at individual scales allows the quantitative prediction of macroscopic system performance from the fundamental molecular ***,mathematically rigorous and methodologically viable approaches are pursued to achieve sustainability-goal-oriented design of material-process-product *** introduced methodology can greatly facilitate experimentalists in novel material invention and new knowledge *** the same time,it can provide scientific guidance and reveal various new opportunities and effective strategies for achieving sustainable *** methodological attractiveness will be fully demonstrated by a detailed case study on the design of thermoset nanocomposite coatings.