Freeform spectrometer enabling increased compactness
نویسندگان
چکیده
We present optical designs with freeform optics in the context of hyperspectral imaging. Results show designs that are 5× 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. Light: Science & Applications (2017) 6, e17026; doi:10.1038/lsa.2017.26; published online 28 July 2017
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تاریخ انتشار 2017