【摘要】 为了突破集成高比变焦传感器系统的设计瓶颈,达到视场连续变换、系统功效接近理论极限和构型灵巧等目的,采用了纯透射式结构型式,发展了集成高比变焦系统的顶层思想和主要策略,建立了相应的优化模型。应用全局优化算法解决了宽光谱、多视场、低畸变和MTF匹配等问题。研究和评估了一种工作光谱范围主要在3~5μm变焦比为20∶1以上的系统优化结果,它在系统调制传递函数、弥散、点扩散函数和其它像质判据等方面均达到应用要求;在体积、重量和系统效率方面具有显著优势。更多还原

【Abstract】 To breakthrough the choke point in research on high ratio zoom system with global optimization,and achieve the transforming in multiple fields of view,the approach to system efficacy in theory limit and improving smartness,pure diffractive optical system is chosen.The optical top idea and main strategy are developed.The correlative model is established.In optimized design,global optimization algorithm is used to achieve wider spectrum range,multi field view,lower distortion and appropriate modulation transfer function(MTF).A kind of result works mainly in 3~5μm with high ratio more than 20∶1 is evaluated.And this integrated multi-sensor electro-optical system satisfies the applied requirements on some criterion,such as MTF,spot diagram(RMS) and point spread function(PSF) etc.,and achieves remarkable advantages in volume,weight,system efficiency and so on.更多还原