利用二元光学器件消二级光谱设计  

Design of correction of secondary spectrum by binary optical element

作　　者：徐琰[1] 颜树华[1] 周春雷[1] 张军[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《光学技术》2007年第S1期190-191,共2页Optical Technique

基　　金：国家自然科学基金资助项目(50275145)

摘　　要：二元光学器件除了能减小成像系统的体积、重量和成本外,还具有许多传统光学元件无法比拟的优越性,如独特的色散特性。通过采用基于二元光学器件的折衍射混合设计以及等效玻璃的方法,设计了长焦距宽波段望远系统,并对其二级光谱进行校正。最后通过光学软件模拟结果表明:利用二元光学元件能很好地实现消二级光谱,并且实现了系统的轻量化。The binary optical elements used in imaging systems have many advantages,such as special dispersion besides the features of saving in mass,volume and low cost.Hybrid diffractive-refractive design based on binary optical elements and equivalent glasses have been introduced to correct secondary spectrum in long focus and large spectral bandwidth telescope.The research results show that the secondary spectrum can be well corrected and the lightweight of telescope can be easily achieved by binary optical element.

关 键 词：二元光学 二级光谱 长焦距 宽波段 

分 类 号：O436[机械工程—光学工程]