Multi-spectral foveated imaging system

Brett E. Bagwell, David V. Wick, Jim Schwiegerling

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

The development of sensors that are smaller, lighter weight and require less bandwidth is critical for the success of space-based and airborne imaging systems. One solution to this problem is foveated imaging, wherein a liquid crystal spatial light modulator is used to selectively enhance resolution in a wide field-of-view imaging system. Selective enhancement decreases the bulk and complexity of the optical train, while simultaneously reducing data transmission and processing requirements. This enhancement is done modulo 2π, as such it is inherently a monochromatic correction. In this paper, we propose to overcome that limitation by introducing a switchable polarization interference filter, obtaining near diffraction limited performance over the instantaneous field-of-view (IFOV) at the wavelength(s) of interest.

Original languageEnglish (US)
Title of host publication2006 IEEE Aerospace Conference
StatePublished - Dec 1 2006
Event2006 IEEE Aerospace Conference - Big Sky, MT, United States
Duration: Mar 4 2006Mar 11 2006

Publication series

NameIEEE Aerospace Conference Proceedings
Volume2006
ISSN (Print)1095-323X

Other

Other2006 IEEE Aerospace Conference
CountryUnited States
CityBig Sky, MT
Period3/4/063/11/06

Keywords

  • Aberration compensation
  • Adaptive optics
  • Liquid-crystal devices
  • Polarization interference filters
  • Spatial light modulators

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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  • Cite this

    Bagwell, B. E., Wick, D. V., & Schwiegerling, J. (2006). Multi-spectral foveated imaging system. In 2006 IEEE Aerospace Conference [1655901] (IEEE Aerospace Conference Proceedings; Vol. 2006).