Design and calibration of a wide field of view MWIR optically multiplexed imaging system

R. Hamilton Shepard; Yaron Rachlin; Vinay Shah; Tina Shih; Manu Ramesh; Joseph Bari

doi:10.1117/12.2236324

30 September 2016 Design and calibration of a wide field of view MWIR optically multiplexed imaging system

R. Hamilton Shepard, Yaron Rachlin, Vinay Shah, Tina Shih, Manu Ramesh, Joseph Bari

Author Affiliations +

Proceedings Volume 9948, Novel Optical Systems Design and Optimization XIX; 99480T (2016) https://doi.org/10.1117/12.2236324
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

We describe the optical design and characterization testing of an optically multiplexed imaging system operating in the 3.4 to 5 micron waveband. The optical design uses a division of aperture method to overlay six images on a single focal plane and produce a 90 by 15 degree 6-megapixel field of view. Image disambiguation is achieved through image shifting enabled by piezo-actuated mirrors in the multiplexing assembly. This paper provides an overview of the optical design including focal plane selection, image resolution and distortion, pupil imaging, and aperture division geometry. A method of applying one and two-point non-uniformity correction using radiometric test data is suggested. Sensor-level per-channel image quality and sensitivity tests including MTF, 3D-noise and NEDT are shown to validate the design assumptions.

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R. Hamilton Shepard, R. Hamilton Shepard, Yaron Rachlin, Yaron Rachlin, Vinay Shah, Vinay Shah, Tina Shih, Tina Shih, Manu Ramesh, Manu Ramesh, Joseph Bari, Joseph Bari, "Design and calibration of a wide field of view MWIR optically multiplexed imaging system", Proc. SPIE 9948, Novel Optical Systems Design and Optimization XIX, 99480T (30 September 2016); doi: 10.1117/12.2236324; https://doi.org/10.1117/12.2236324

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