Intermediate image free computed tomography imaging spectrometer

Simon Amann; Tobias Haist; Alexander Gatto; Markus Kamm; Alois Herkommer

doi:10.1117/12.2650096

8 March 2023 Intermediate image free computed tomography imaging spectrometer

Simon Amann, Tobias Haist, Alexander Gatto, Markus Kamm, Alois Herkommer

Proceedings Volume 12428, Photonic Instrumentation Engineering X; 124280G (2023) https://doi.org/10.1117/12.2650096
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The Computed Tomography Imaging Spectrometer (CTIS) is a snapshot hyperspectral camera based on computational imaging. Typical designs use a Keplerian beam expander to limit the imaged scene and decrease the incident ray angles. We have found that the use of a Galilean beam expander instead can be beneficial. Often a smaller system with a better optical quality is achievable with the disadvantage of a vignetted image. Results of a comparison between both designs based on a prototype will be shown. Furthermore, we present our miniaturized CTIS system, which uses the Galilean design.

Conference Presentation

Citation Download Citation

Simon Amann, Tobias Haist, Alexander Gatto, Markus Kamm, and Alois Herkommer "Intermediate image free computed tomography imaging spectrometer", Proc. SPIE 12428, Photonic Instrumentation Engineering X, 124280G (8 March 2023); https://doi.org/10.1117/12.2650096

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