27 November 2017 Athermalization and achromatization of visible/SWIR optics using instantaneous Abbe number
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Proceedings Volume 10590, International Optical Design Conference 2017; 1059008 (2017) https://doi.org/10.1117/12.2293091
Event: International Optical Design Conference - IODC 2017, 2017, Denver, United States
With the move to more and more lightweight and cost-effective design, a move to multiband or multi-spectral optics is required. These systems are becoming more prevalent in the market as new detector technologies have been developed. However, the lens designs are only starting to be considered with the addition of new materials in the MWIR and the LWIR. For the VIS/SWIR region the designs have been possible, but a lack of detector technology has resulted in few designs being considered for actual manufacturing. These designs are also difficult due to changes in the Abbe number in the different wavebands. Where the glass map is robust in the visible region, there exists a lack of crown glasses in the SWIR, and one is left with mostly flint glasses. This proves challenging from a chromatic perspective. The challenge becomes even more difficult if one wants to incorporate athermalization.
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J. L. Ramsey, J. L. Ramsey, } "Athermalization and achromatization of visible/SWIR optics using instantaneous Abbe number", Proc. SPIE 10590, International Optical Design Conference 2017, 1059008 (27 November 2017); doi: 10.1117/12.2293091; https://doi.org/10.1117/12.2293091

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