Freeform spectrometer enabling increased compactness

• 来源期刊: 光：科学与应用（英文版）
• 关键词: aberrations freeform optics imaging spectrometer
• 年，卷（期）: 2017,（3）
• 页码范围: 112-122
• 页数: 11页
• 语种: 英文
• DOI: 10.1038/Isa.2017.26

摘要

We present optical designs with freeform optics in the context of hyperspectral imaging.Results show designs that are 5 x more compact in volume than similar designs using conventional spherical or aspherical surfaces.We will show how combining the concepts of spatial and spectral-band broadening,which will be introduced in this paper,led to the improvement in compactness that is uniquely enabled by freeform optics.