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Novel Non-mechanical Liquid Crystal based Foveated Imaging System

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
96719
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
09SB3-0118
Solicitation Year:
N/A
Solicitation Topic Code:
DARPA 09-008
Solicitation Number:
N/A
Small Business Information
Boulder Nonlinear Systems, Inc.
450 Courtney Way, Unit 107 Lafayette, CO 80026-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2010
Title: Novel Non-mechanical Liquid Crystal based Foveated Imaging System
Agency / Branch: DOD / DARPA
Contract: N10PC20065
Award Amount: $98,960.00
 

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 360oX20o 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.

Principal Investigator:

Hugh Masterson
PRINCIPAL INVESTIGATOR
3036040077
HUGH@BNONLINEAR.COM

Business Contact:

Mark Tanner
VICE PRESIDENT
3036040077
MTANNER@BNONLINEAR.COM
Small Business Information at Submission:

Boulder Nonlinear Systems, Inc.
450 Courtney Way, Unit 107 Lafayette, CO 80026

EIN/Tax ID: 841118066
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No