Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2006-03-21
2006-03-21
Lee, Andrew H. (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
Reexamination Certificate
active
07016048
ABSTRACT:
A phase-resolved functional optical coherence tomography system simultaneously obtains the Stokes vectors, structure, blood flow velocity, standard deviation, and birefringence images in human skin. The multifunctional images were obtained by processing the analytical interference fringe signals derived from the two perpendicular polarization detection channels. The blood flow velocity and standard deviation images were obtained by comparing the phase from the pairs of analytical signals in the neighboring A-lines in the same polarization state. The Stokes vectors were obtained by processing the analytical signals from two polarization diversity detection channels for the same reference polarization state. From the four Stokes vectors, the birefringence image, which is insensitive to the orientations of the optical axis in the sample, was obtained. Multifunctional images of a port wine stain birthmark in human skin are demonstrated.
REFERENCES:
patent: 2005/0004453 (2005-01-01), Tearney et al.
Chen Zhongping
Nelson J. Stuart
Dawes Daniel L.
Lee Andrew H.
Myers Dawes Andras & Sherman LLP
The Regents of the University of California
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