
US Patent No: 7,733,497
Number of patents in Portfolio can not be more than 2000
Method and apparatus for performing optical imaging using frequency-domain interferometry
Stats
-
Jun 8, 2010
Issued date -
Sep 8, 2004
filing date -
10/577,562
serial no -
In Force
status
Importance
Abstract
An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
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| 6,359,692 Method and system for profiling objects having multiple reflective surfaces using wavelength-tuning phase-shifting interferometry | 95 | 1999 | |
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| 4,309,056 Air deflector support structure | 102 | 1979 | |
| 4,479,499 Method and apparatus for detecting the presence of caries in teeth using visible light | 155 | 1982 | |
| 5,065,331 Apparatus and method for determining the stress and strain in pipes, pressure vessels, structural members and other deformable bodies | 84 | 1986 | |
| 5,623,336 Method and apparatus for analyzing optical fibers by inducing Brillouin spectroscopy | 67 | 1994 | |
| 5,735,276 Method and apparatus for scanning and evaluating matter | 116 | 1995 | |
| 5,843,052 Irrigation kit for application of fluids and chemicals for cleansing and sterilizing wounds | 67 | 1996 | |
| 5,987,346 Device and method for classification of tissue | 139 | 1996 | |
| 5,892,583 High speed inspection of a sample using superbroad radiation coherent interferometer | 84 | 1997 | |
| 6,014,214 High speed inspection of a sample using coherence processing of scattered superbroad radiation | 70 | 1997 | |
| 5,994,690 Image enhancement in optical coherence tomography using deconvolution | 123 | 1998 | |
| 6,002,480 Depth-resolved spectroscopic optical coherence tomography | 168 | 1998 | |
| 6,006,128 Doppler flow imaging using optical coherence tomography | 104 | 1998 | |
| 6,185,271 Helical computed tomography with feedback scan control | 98 | 1999 | |
| 6,249,349 Microscope generating a three-dimensional representation of an object | 72 | 1999 | |
| 2003/0236,443 Methods and apparatus for the identification and stabilization of vulnerable plaque | 115 | 2003 | |
Patent Citation Ranking
Maintenance Fees
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