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RGB wavefront sensor for turbulence mitigation

Patent ·
OSTI ID:1840236
;
A compact adaptive optics system for long-range horizontal paths imaging that improves degraded images. The system uses a filter that corresponds to the three colors in a typical color detector element, one or more optic elements, a deformable mirror, and a detector. Focus errors, due to turbulence, in the image recorded by the detector element show up as image shifts in the three distinct color images. The shifts and statistics of these shifts between these simultaneous images are used to create control signals for the deformable mirror resulting in a compact adaptive optic system for horizontal paths without need for a point source located at the distance scene being imaged. Analysis of the relative pixel shifts in various regions of the image provides third order statistics revealing tip/tilt and additional Zernikes modes that are used to control a deformable mirror without the need for a guide star/point-source.
Research Organization:
Mission Support and Test Services, LLC, North Las Vegas, NV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
NA0003624
Assignee:
Mission Support and Test Services, LLC (North Las Vegas, NV)
Patent Number(s):
11,054,637
Application Number:
16/231,023
OSTI ID:
1840236
Country of Publication:
United States
Language:
English

References (12)

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An Adaptive Cross-Correlation Algorithm for Extended Scene Shack-Hartmann Wavefront Sensing#
  • Sidick, Erkin; Green, Joseph J.; Ohara, Catherine M.
  • Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM https://doi.org/10.1364/AOPT.2007.JTuA7
conference January 2007
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Bispectral Speckle Imaging Algorithm Performance on Specific Simulated Scenarios report November 2013
Wavefront sensors for adaptive optical systems journal January 2010

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