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Proceedings Paper

An alternative approach to infrared optics
Author(s): Rick Morrison; Ronald Stack; Gary Euliss; Ravindra Athale; Colin Reese; Jay Vizgaitis; James Stevens; Eric Tremblay; Joseph Ford
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Paper Abstract

The MONTAGE program sponsored by the Microsystems Technology Office of the Defense Advanced Research Projects Agency (DARPA) resulted in the demonstration of a novel approach to designing compact imaging systems. This approach was enabled by an unusual four-fold annular lens originally designed and demonstrated for operation exclusively in the visible spectral band. To accomplish DARPA's goal of an ultra-thin imaging system, the folded optic was fabricated by diamond-turning concentric aspheric annular zones on both sides of a CaF2 core. The optical properties of the core material ultimately limit the operating bandwidth of such a design. We present the latest results of an effort to re-engineer and demonstrate the MONTAGE folded optics for imaging across a broad spectral band. The broadband capability is achieved by taking advantage of a new design that substitutes a hollow core configuration for the solid core. Along with enabling additional applications for the folded optics, the hollow-core design offers the potential of reducing weight and cost in comparison to an alternative solid-core design. We present new results characterizing the performance of a lens based on the new design and applied to long-wave infrared imaging.

Paper Details

Date Published: 3 May 2010
PDF: 11 pages
Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76601Y (3 May 2010); doi: 10.1117/12.853851
Show Author Affiliations
Rick Morrison, Distant Focus Corp. (United States)
Ronald Stack, Distant Focus Corp. (United States)
Gary Euliss, The MITRE Corp. (United States)
Ravindra Athale, The MITRE Corp. (United States)
Colin Reese, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Jay Vizgaitis, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
James Stevens, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Eric Tremblay, Univ. of California, San Diego (United States)
Joseph Ford, Univ. of California, San Diego (United States)

Published in SPIE Proceedings Vol. 7660:
Infrared Technology and Applications XXXVI
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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