Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2006-12-05
2006-12-05
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
Reexamination Certificate
active
07145661
ABSTRACT:
An optical coherence tomography (OCT) system including a polarizing splitter disposed to direct light in an interferometer such that the OCT detector operates in a noise-optimized regime. When scanning an eye, the system detector simultaneously produces a low-frequency component representing a scanning laser ophthalmoscope-like (SLO-like) image pixel and a high frequency component representing a two-dimensional (2D) OCT en face image pixel of each point. The SLO-like image is unchanging with depth, so that the pixels in each SLO-like image may be quickly realigned with the previous SLO-like image by consulting prominent image features (e.g., vessels) should lateral eye motion shift an OCT en face image during recording. Because of the pixel-to-pixel correspondence between the simultaneous OCT and SLO-like images, the OCT image pixels may be remapped on the fly according to the corresponding SLO-like image pixel remapping to create an undistorted 3D image data set for the scanned region.
REFERENCES:
patent: 4798468 (1989-01-01), Ohuchi
patent: 4869593 (1989-09-01), Biegen
patent: 5202745 (1993-04-01), Sorin et al.
patent: 5321501 (1994-06-01), Swanson et al.
patent: 5459570 (1995-10-01), Swanson et al.
patent: 5847827 (1998-12-01), Fercher
patent: 5975697 (1999-11-01), Podoleanu et al.
patent: 6134003 (2000-10-01), Tearney et al.
patent: 6137585 (2000-10-01), Kitzenberger et al.
patent: 6385358 (2002-05-01), Everett et al.
patent: 6615072 (2003-09-01), Izatt et al.
patent: 6657727 (2003-12-01), Izatt et al.
Barnoski, J. K., S. M. Jensen. “Fiber waveguides: A novel technique for investigation attenuation characteristics.”Appl. Opt., 15, pp. 2112-2115 (1976).
Fercher, A. F., C. K. Hitzenberger. “Optical Coherence Tomography.” Chapt. 4 inProgress in Optics, 44, Elsevier Science B.V. (2002).
Hitzenberger, C. D., P. Trost, P. W. Lo, and O. Zhou. “Three-dimensional imaging of the human retina by high-speed optical coherence tomography.”Opt. Express, 11, pp. 2753-2761 (Oct. 2003).
Hoeling, B., A. Fernandez, R. Haskell, E. Huang, W. Myers, O. Peterson, S. Ungersma, R. Wang, M. Williams and S. Fraser. “An optical coherence microscope for 3-dimensional imaging in developmental biology.”Opt. Express, 6, pp. 136-145 (2000).
Huang, D., E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hea, T. Flotte, K. Gregory, C. A. Puliafito, et al. “Optical Coherence Tomography.”Science, 254, pp. 1178-1181 (Nov. 1991).
Kompfner, R., H. Park. “High-resolution heterodyne coincidence detection of optical pulse streams.”Int. J. Electron., 41, pp. 317-323 (1976).
Park, H., M. Chodorow, R. Kompfner. “High Resolution Optical Ranging System.”Appl. Opt., 20, pp. 2389-2394 (Jul. 1981).
Podoleanu, A. Gh., D. A. Jackson. “Noise Analysis of a Combined Optical Coherence Tomography and a Confocal Scanning Ophthalmoscope.”Appl. Optics, 38 pp. 2116-2117 (Apr. 1999).
Podoleanu, A. Gh., J. A. Rogers, D. A. Jackson, S. Dunne. “Three dimensional OCT images from retina and skin.”Opt. Express, 7, pp. 292-298 (2000).
Rollins, A. M., J. A. Izatt. “Optimal interferomater designs for optical coherence tomography.”Opt. Lett., 24, pp. 1484-1488 (Nov. 1999).
Rogers, J. A., A. Gh. Podoleanu, G. M. Dobre, D. A. Jackson, F W. Fiske. “Topography and volume measurements of the optic nerve usingen-faceoptical coherence tomography.”Optics Express, 9, pp. 533-545, (Nov. 5, 2001).
Youngquist, R. C., S. Carr, D. E. N. Davies. “Optical coherence-domain reflectometry: a new optical evaluation technique.”Opt. Lett., 12, pp. 158-160 (Mar. 1987).
Carl Zeiss Meditec Inc.
Lyons Michael A.
Stallman & Pollock LLP
Toatley , Jr. Gregory J.
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