Closed-loop wavefront sensor using field programmable gate...

Details Closed-loop wavefront sensor using field programmable gate... Closed-loop wavefront sensor using field programmable gate...

2007-09-25

2007-09-25

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Lamp beam direction or pattern

C250S201900

Reexamination Certificate

active

11130061

ABSTRACT:
A system capable of determining wavefront characteristics, such as air induced wavefront aberrations, includes a field programmable gate array (FPGA) device executing a phase diversity algorithm. The FPGA device can be a stand-alone device or comprise multiple FPGAs. The device receives an “in-focus” and an “out-of-focus” image having a known optical difference from that of the “in-focus” image. The device then performs as many phase diversity algorithm iterations as desired to reach an expression for the wavefront aberrations induced on the collected image data. The resulting wavefront data may be used to produce an enhanced image of the original image data. Example applications include remote sensors and targeting systems, and both passive imaging and active projection systems that compensate for wavefront anomalies.

REFERENCES:
patent: 3980879 (1976-09-01), O'Meara
patent: 4141652 (1979-02-01), Feinleib
patent: 4309602 (1982-01-01), Gonsalves et al.
patent: 4617479 (1986-10-01), Hartmann et al.
patent: 4696573 (1987-09-01), Hutchin
patent: 4824243 (1989-04-01), Wheeler et al.
patent: 5120128 (1992-06-01), Ulich et al.
patent: 5128530 (1992-07-01), Ellerbroek et al.
patent: 5157459 (1992-10-01), Oono et al.
patent: 5229592 (1993-07-01), Horwitz et al.
patent: 5229889 (1993-07-01), Kittell
patent: 5287165 (1994-02-01), Ulich et al.
patent: 5300766 (1994-04-01), Granger et al.
patent: 5384455 (1995-01-01), Paxman
patent: 5598261 (1997-01-01), Duncan et al.
patent: 5610707 (1997-03-01), Duncan et al.
patent: 6107617 (2000-08-01), Love et al.
patent: 6704889 (2004-03-01), Veenstra et al.
patent: 6720796 (2004-04-01), Reddy et al.
patent: 6724222 (2004-04-01), Patel et al.
patent: 6784692 (2004-08-01), Kaviani
patent: 6787747 (2004-09-01), Specht et al.
patent: 6795960 (2004-09-01), Kong
patent: 7039252 (2006-05-01), Ludwig
patent: 2004/0099787 (2004-05-01), Dolne et al.
patent: 1368692 (2003-04-01), None
Dolne et al., “Practical Issues in Wave-front Sensing by Use of Phase Diversity,” Applied Optics, 42(26):5284-5289 (2003).
Dolne et al., “Information Theoretic Bounds of Phase Diversity for Diversity Polynomials and Noise Statistics,” Applied Optics-IP, vol. 42 Issue 26, p. 5284 (2003).
Dolne et al., “Practical Concerns for Phase Diversity Implementation Wavefront Sensing and Image Recovery,” Proc. SPIE vol. 4493, pp. 100-111 (2001).
Gerwe et al., “Supersampling Multiframe Blind Deconvolution Resolution Enhancement of Adaptive Optics Compensated Imagery of LEO Satellites,” Proc. SPIE vol. 4091, pp. 1087-2085 (2000).
Gerwe et al., “Superresolved Image Reconstruction of Images Taken Through the Turbulent Atmosphere,” J. Opt. Soc. Am. A. 15(10), pp. 2620-2628 (1998).
Thelen et al., “Fine-Resolution Imagery of Extended Objects Observed Through Volume Turbulence using Phase-Diverse Speckle,” Proc. SPIE 3763, pp. 102-111 (1999).

Affiliated with

Also associated with

Rating

Closed-loop wavefront sensor using field programmable gate... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Closed-loop wavefront sensor using field programmable gate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed-loop wavefront sensor using field programmable gate... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3745877