Novel Non-mechanical Liquid Crystal based Foveated Imaging System

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N10PC20065
Agency Tracking Number: 09SB3-0118
Amount: $98,960.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: SB093-008
Solicitation Number: 2009.3
Small Business Information
450 Courtney Way, Unit 107, Lafayette, CO, 80026
DUNS: 602673188
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 HUGH MASTERSON
 PRINCIPAL INVESTIGATOR
 (303) 604-0077
 HUGH@BNONLINEAR.COM
Business Contact
 MARK TANNER
Title: VICE PRESIDENT
Phone: (303) 604-0077
Email: MTANNER@BNONLINEAR.COM
Research Institution
N/A
Abstract
A novel foveated imaging technology is proposed, suitable for integration into an urban surveillance system. The proposed technology has no moving parts has low power requirements and requires a single imaging camera. The technology exploits the beam steering capabilities of liquid crystal polarization gratings (LCPGs) which diffract light only into the m=±1 orders according to the handedness of incident circular polarization which is controlled by switchable halfwave plates. The LCPGs steer the high field angles into the axial direction of a lens train where a high resolution image is produced. Field angles simultaneously steered into off-axis directions produce a blurred image region due to lens aberrations. A second LCPG stack and lenses re-image and re-steer the object field to the image plane reversing grating dispersion and image shift. The result is a static image field with a moveable foveated region. The technology is suitable for wide angle imaging as the lens aberrations do not have to be corrected for high angles. The system is integrated with a hemispherical mirror to capture a 360°X20° field of regard. A 10x foveated region zoom is provided by additional small diameter axial lenses. Polarization independent operation is possible using a two arm system.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government