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Proceedings Paper

Athermalization and achromatization of visible/SWIR optics using instantaneous Abbe number
Author(s): J. L. Ramsey
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Paper Abstract

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.

Paper Details

Date Published: 27 November 2017
PDF: 8 pages
Proc. SPIE 10590, International Optical Design Conference 2017, 1059008 (27 November 2017); doi: 10.1117/12.2293091
Show Author Affiliations
J. L. Ramsey, Rochester Precision Optics, LLC (United States)

Published in SPIE Proceedings Vol. 10590:
International Optical Design Conference 2017
Peter P. Clark; Julius A. Muschaweck; Richard N. Pfisterer; John R. Rogers, Editor(s)

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