Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1992-04-29
1994-06-14
Turner, Samuel A.
Optics: measuring and testing
By particle light scattering
With photocell detection
356 731, 356346, 356351, 25022727, G01B 902
Patent
active
053215010
ABSTRACT:
A method and apparatus for performing optical imaging on a sample wherein longitudinal scanning or positioning in the sample is provided by either varying relative optical path lengths for an optical path leading to the sample and to a reference reflector, or by varying an optical characteristic of the output from an optical source applied to the apparatus. Transverse scanning in one or two dimensions is provided on the sample by providing controlled relative movement between the sample and a probe module in such direction and/or by steering optical radiation in the probe module to a selected transverse position. The probe module may be an external module or may be an endoscope or angioscope utilized for scanning internal channels. Multiple optical paths may be provided for parallel scanning and focus may be enhanced by varying the focal point in the sample in synchronism with longitudinal scanning of the sample.
REFERENCES:
patent: 4928005 (1990-05-01), Lefevre et al.
patent: 5202745 (1993-04-01), Sorin et al.
Youngquist & Davies, "Optical coherence-domain . . . technique", Optics Letters 12, 158-160, Mar. 1987.
Davies & Youngquist, "Method and apparatus . . . sites", UK Patent Application No. 8611055, May 7, 1987.
Takada, Yokohama, Chida & Noda, "New measurement system . . . technique", Applied Optics 26, 1603-1606, May 1, 1987.
Danielson & Whittenberg, "Guided-wave reflectometry w/micrometer resolution", Applied Optics 26, 2836-2842, Jul. 15, 1987.
Fercher, Mengedoht & Werner, "Eye-length measurement . . . light", Optic Letters 13, 186-188, Mar. 1988.
Beaud & Salthe, "Optical reflectometry w/micrometer . . . devices", IEEE Journal of Quantum Electronics 25, 755-759, Apr. 1989.
Gilgen & Beaud, "Submillimeter optical reflectometry", Journal of Lightwave Technology 7, 1225-1233, Aug. 1989.
Tateda & Horiguchi, "Water penetration sensing using . . . OTDR", IEEE Photonics Technology Letters 3, 1-3, Jan. 1991.
Hitzenberger, "Optical measurement of the axil . . . interferometry" Investigate Ophthal. & Visual Science 32, 616-624, Mar. 1991.
Kobayashi & Noda, "Polarization-independent . . . reflectometer", Journal of Lightwave Technology 9, 623-628, May 1991.
Kobayashi & Noda, "Optical fiber component . . . reflectometer", IEEE Photonics Technology Letters 3, 564-566, Jun. 1991.
Takada & Noda, "Reyleigh backscattering . . . spatial resolution", Applied Physics Letters 59, 143-145, Jul. 8, 1991.
Takada & Yukimatsu, "Resolution control of low . . . 14 and 290", IEEE Photonics Technology Letter 3, 676-678, Jul. 1991.
Huang & Fujimoto, "Micron-resolution ranging . . . reflectometry", Lasers in Surgery and Medicine 11, 419-425, 1991. (May, 1991).
Takada, Himeno & Yukimatsu, "Phase-noise . . . reflectometry", Applied Physics Letters 59, 2483-2486, Nov. 11, 1991.
Huang & Fujimoto, "Optical coherence tomography", Science 254, 1178-1181, Nov. 22, 1991.
Clivaz & Gilgen, "High-resolution reflectometry . . . tissues", Optics Letters 17, 4-6, Jan. 1, 1992.
Sorin & Gray, "Simultaneous thickness and . . . reflectometry", IEEE Photonics Technology Letters 4, 105-107, Jan. 1992.
Swanson & Puliafito, "High-speed optical . . . reflectometry", Optics Letters 17, 151-153, Jan. 15, 1992.
Hitzenberger & Fercher, "Measurement of corneal . . . inferometry", Investigative Opthal. & Visual Science 33, 98-103, Jan. 1992.
Kobayashi & Noda, "Polarization-independent . . . inferometry", Journal of Lightwave Technology 9, 0733-8724, May 1991.
Fujimoto James G.
Huang David
Lin Charles P.
Puliafito Carmen A.
Schuman Joel S.
Keesee LaCharles
Massachusetts Institute of Technology
Turner Samuel A.
LandOfFree
Method and apparatus for optical imaging with means for controll 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 and apparatus for optical imaging with means for controll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for optical imaging with means for controll will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1253126