二元光学超光谱成像仪分光系统设计

二元光学元件用作透镜在原理上色差非常大,若不在设计上做出补偿,则会限制其在宽波段上使用。阐述了利用二元光学元件色散特性的新型超光谱成像仪的基本原理和应用前景。由于国内加工衍射透镜工艺条件的限制,提出利用折衍混合透镜代替衍射透镜来实现色散和成像,介绍了此透镜系统的设计方法,利用光学设计软件进行分析和评估,希望对二元光学超光谱成像仪的设计具有指导意义。

Optical design of spectrum-dividing system for binary optic hyperspectral imager

Binary optical elements have been proposed for many applications. One of the principal limitations of these lenses is abundant chromatic aberration that prohibits broadband use without design compensation. The paper reports a novel configuration that exploits this typically unwanted effect to create a hyperspectral imager. The design method of a diffractive refractive hybrid singlet is presented to replace a binary optical phase lens for imaging spectrometer. The system is analysed and evaluated by optical design soft. The method is also useful in designing binary optic hyperspectral imager.