Method for analyzing a diffusing sample by time resolution...

Optics: measuring and testing – By light interference

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06903825

ABSTRACT:
A method for analyzing a diffusing sample comprises steps of: a) illuminating the sample with temporally coherent and wavelength-modulated incident light beam; b) producing a succession of interference signals with the diffuse light; c) combining each interference signal with a reference signal (Ref(t,τ0)) generating a time port; d) extracting the continuous component of each signal characteristic of the predetermined delay (τ0) derived form c); applying a nonlinear function on each of the continuous components of the signals characterizing the predetermined delay (τ0); and f) averaging each of the images, with the non-linear function, of the continuous components of the signals characterizing the predetermined delay (τ0). The invention is useful for observing organs of the human body.

REFERENCES:
patent: 4109647 (1978-08-01), Stern et al.
patent: 4590948 (1986-05-01), Nilsson
patent: 5738101 (1998-04-01), Sappey
patent: 6181429 (2001-01-01), Barberis et al.
M. R. Hee et al., “Femtosecond Transillumination Optical Coherence Tomography”, Optics Letters, US, Optical Society of America, Washington, vol. 18, No. 12, 15 juin 1993 (Jun. 15, 1993), pp. 950-952, XP000345900, ISSN: 0146-9592 p. 950.
L. Wang et al., “Time-Resolved Fourier Spectrum and Imaging in Highly Scattering Media”, Applied Optics, US, Otical Society of America, Washington, vol. 32, No. 26, 10 Septembre 1993 (Sep. 10, 1993), pp. 5043-5048, XP000393405, ISSN: 0003-6935, p. 5043-p. 5044.
T. Zhang et al., “Multipass Michelson Interferometer With the Use of a Wavelength-Modulated Laser Diode”, Applied Optics, US, Optical Society of America, Washington, vol. 35, No. 28, 1 Octobre 1996 (Oct. 1, 1996), pp. 5650-5656, XP000629793, ISSN: 0003-6935, p. 5650; figure 2, p. 5652, colonne de droite, dernier alinea- p. 5653, colonne de gauche.
B. Chance et al., “Phase Measurement of Light Absorption and Scatter in Human Tissue”, Review of Scientific Instruments, US, American Institute of Physics. New York, vol. 69, No. 10, Octobre 1998 (Oct. 1998), pp. 3457-3481, XP000830323, ISSN: 0034-6748, p. 3474, colonne de gauche, dernier alinea, p. 3476, colonne de gauche, dernier alinea; figures 12, 13.

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

Method for analyzing a diffusing sample by time resolution... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for analyzing a diffusing sample by time resolution..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for analyzing a diffusing sample by time resolution... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3517491

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