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Experimental verification of a MWIR/LWIR 3x continuous zoom lens (Rising Researcher Paper)
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Paper Abstract

With new detectors that are capable of imaging across multiple wavelength bands, new methods need to be developed to reduce the lens count and improve performance across these multiple bands while minimizing the SWAP-c (Size, Weight, power and cost) of the system. One method that was proposed was using an update to the classical γν-ν diagram. This method which, uses instantaneous Abbe number and minimum dispersion wavelength to select materials that minimize the chromatic and thermal focal shift over the desired spectral region. A MWIR/LWIR lens was designed using this method to minimize the lens count. The lens has a continuous 3x zoom range. The lens was manufactured to determine the validity of the method that was used and to evaluate the new materials that are being developed. A comparison of the nominal design to the manufactured design is discussed. This includes a comparison of MTF performance.

Paper Details

Date Published: 14 May 2019
PDF: 6 pages
Proc. SPIE 10998, Advanced Optics for Imaging Applications: UV through LWIR IV, 109980M (14 May 2019); doi: 10.1117/12.2517801
Show Author Affiliations
J. L. Ramsey, Rochester Precision Optics, LLC (United States)
G. P. Lindberg, Rochester Precision Optics, LLC (United States)
R. Campbell, Rochester Precision Optics, LLC (United States)
J. D. Musgraves, Rochester Precision Optics, LLC (United States)
P. F. Wachtel, Rochester Precision Optics, LLC (United States)
J. P. Deegan, Rochester Precision Optics, LLC (United States)


Published in SPIE Proceedings Vol. 10998:
Advanced Optics for Imaging Applications: UV through LWIR IV
Jay N. Vizgaitis; Peter L. Marasco; Jasbinder S. Sanghera, Editor(s)

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