Methods and systems for removing undesired artifacts in...

Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C356S495000, C356S497000

Reexamination Certificate

active

07929146

ABSTRACT:
Methods, fourier domain optical coherence tomography (FDOCT) interferometers and computer program products are provided for removing undesired artifacts in FDOCT systems using continuous phase modulation. A variable phase delay is introduced between a reference arm and a sample arm of an FDOCT interferometer using continuous phase modulation. Two or more spectral interferograms having different phase delay integration times are generated. The spectral interferograms are combined using signal processing to remove the undesired artifacts. Systems and methods for switching between stepped and continuous phase shifting Fourier domain optical coherence tomography (FDOCT) and polarization-sensitive optical coherence tomography (PSOCT) are also provided herein.

REFERENCES:
patent: 6377349 (2002-04-01), Fercher
patent: 7301644 (2007-11-01), Knighton et al.
patent: 7355716 (2008-04-01), de Boer et al.
patent: 7359062 (2008-04-01), Chen et al.
patent: 7365858 (2008-04-01), Fang-Yen et al.
patent: 7557929 (2009-07-01), Fang-Yen et al.
patent: 7643153 (2010-01-01), de Boer et al.
patent: 7733497 (2010-06-01), Yun et al.
patent: 7742173 (2010-06-01), Yun et al.
patent: 7742174 (2010-06-01), Izatt et al.
patent: 2002/0196446 (2002-12-01), Roth et al.
patent: 2004/0239938 (2004-12-01), Izatt
patent: 2005/0018201 (2005-01-01), de Boer et al.
patent: 2005/0057756 (2005-03-01), Fang-Yen et al.
patent: 2005/0105097 (2005-05-01), Fang-Yen et al.
patent: 2006/0072424 (2006-04-01), Everett et al.
patent: 2006/0232783 (2006-10-01), Choma et al.
patent: 2007/0002327 (2007-01-01), Zhou et al.
patent: 2007/0291277 (2007-12-01), Everett et al.
patent: 1 780 530 (2007-05-01), None
patent: WO 2006/016434 (2006-02-01), None
International Search Report, PCT/US2007/016146, Feb. 14, 2008.
Invitation to Pay Additional Fees for PCT/US2007/016146; Dec. 3, 2007.
Tao et al. “Complex Conjugate Resolved Retinal SDOCT using Integrating Buckets”Proc. of SPIE 6429:6429W-1-6429W-4 (2007).
Yasuno et al. “SimultaneousB-M-mode scanning method for real-time full-range Fourier domain optical coherence tomography”Applied Optis 45(8):1861-1865 (2006).
Bhushan, Bharat, et al., “Measurement of surface topography of magnetic tapes by Mirau interferometry,” Applied Optics, vol. 24, No. 10, May 15, 1985, p. 1489-1497.
Dubois, A., et al., “Sinusoidally phase-modulated interference microscope for high-speed high-resolution topographic imagery,” Optics Letters, vol. 26, No. 23, Dec. 1, 2001, p. 1873-1875.
Dubois, Arnold, “Phase-map measurements by interferometry with sinusoidal phase modulation and four integrating buckets,” J. Opt. Soc. Am. A, vol. 18, No. 8, Aug. 2001, p. 1972-1979.
Roth et al., “Simplified method for polarization-sensitive optical coherence tomography,” Optics Letters, vol. 26, No. 14, Jul. 15, 2001, p. 1069-1071.
Sarunic, M.V., et al., “Real Time Quadrature Projection Complex Conjugate Resolved Fourier Domain Optical Coherence Tomography,” Optics Letters 31:2426-2428, 2006.
Wyant, J.C., “Use of an ac heterodyne lateral shear interferometer with real-time wavefront correction systems,” Applied Optics, vol. 14, No. 11, Nov. 1975, p. 2622-2626.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods and systems for removing undesired artifacts in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and systems for removing undesired artifacts in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for removing undesired artifacts in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2671618

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.