Single and dual band linear variable filters (LVF) for the mid and far infrared

Thomas D. Rahmlow Jr.; Terrance L. Finnell Jr.; Timothy Olsen; Robert L. Johnson

doi:10.1117/12.2618975

13 June 2022 Single and dual band linear variable filters (LVF) for the mid and far infrared

Thomas D. Rahmlow Jr., Terrance L. Finnell Jr., Timothy Olsen, Robert L. Johnson

Proceedings Volume PC12103, Advanced Optics for Imaging Applications: UV through LWIR VII; PC1210304 (2022) https://doi.org/10.1117/12.2618975
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

Linear Variable Filters (LVF) bandpass filters provide a gradient in passband wavelength along one axis and constant center wavelength along the orthogonal axis. Infrared LVF filters used to discriminate wavelength provide a hyperspectral capability to the infrared imager which is light weight and rugged. By exploiting filter harmonics, dual band LVF filters have been demonstrated for the mid and far infrared spectral regions.

Conference Presentation

Citation Download Citation

Thomas D. Rahmlow Jr., Terrance L. Finnell Jr., Timothy Olsen, and Robert L. Johnson "Single and dual band linear variable filters (LVF) for the mid and far infrared", Proc. SPIE PC12103, Advanced Optics for Imaging Applications: UV through LWIR VII, PC1210304 (13 June 2022); https://doi.org/10.1117/12.2618975

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