11 May 2017 Optical design of athermal, multispectral, radial GRIN lenses
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Abstract
Military infrared systems generally must exhibit stable optical performance over a wide operating temperature range. We present a model for the first-order optical design of radial gradient-index systems, based on a form of the thermo-optic glass coefficient adapted to inhomogeneous material combinations. We find that GRIN components can significantly reduce the optical power balance of athermal, achromatic systems, which introduces the scope for a new class of broadband infrared imaging solutions. This novel first-order modelling technique is used to generate a starting point for optimisation of a SWIR/LWIR multispectral optical design.
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Andrew M. Boyd, "Optical design of athermal, multispectral, radial GRIN lenses", Proc. SPIE 10181, Advanced Optics for Defense Applications: UV through LWIR II, 1018109 (11 May 2017); doi: 10.1117/12.2262072; https://doi.org/10.1117/12.2262072
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