1
Eric A Swanson, David Huang, James G Fujimoto, Carmen A Puliafito, Charles P Lin, Joel S Schuman: Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample. Massachusetts Institute of Technology, Wolf Greenfield & Sacks, June 14, 1994: US05321501 (787 worldwide citation)

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 ...


2
Stephen A Boppart, Gary J Tearney, Brett E Bouma, Mark E Brezinski, James G Fujimoto, Eric A Swanson: Methods and apparatus for forward-directed optical scanning instruments. The General Hospital Corporation, Testa Hurwitz & Thibeault, November 26, 2002: US06485413 (683 worldwide citation)

An imaging system for performing forward scanning imaging for application to therapeutic and diagnostic devises used in medical procedures. The imaging system includes forward directed optical coherence tomography (OCT), and non-retroreflected forward scanning OCT. Also interferometric imaging and r ...


3
Guillermo Tearney, Stephen A Boppart, Brett E Bouma, Mark Brezinski, Eric A Swanson, James G Fujimoto: Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope. Massachusetts Institute of Technology, October 17, 2000: US06134003 (659 worldwide citation)

An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elon ...


4
Eric A Swanson, David Huang, James G Fujimoto, Carmen A Puliafito, Charles P Lin, Joseph S Schuman: Method and apparatus for performing optical measurements. Massachusetts Institute of Technology, Wolf Greenfield & Sacks, October 17, 1995: US05459570 (529 worldwide citation)

A method and apparatus for performing various optical measurements is provided utilizing an optical coherence domain refrectometer (OCDR). A short coherence optical radiation source applies optical radiation through like optical paths to a sample and an optical reflector. The optical reflector is mo ...


5
Guillermo Tearney, Stephen A Boppart, Brett E Bouma, Mark Brezinski, Eric A Swanson, James G Fujimoto: Fiber optic imaging endoscope interferometer with at least one faraday rotator. Massachusetts Institute of Technology, Testa Hurwitz & Thibeault, December 31, 2002: US06501551 (428 worldwide citation)

An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elon ...


6
Eric A Swanson, Christopher L Petersen: Methods and apparatus for high speed longitudinal scanning in imaging systems. Lightlab Imaging, Fleshner & Kim, February 20, 2001: US06191862 (360 worldwide citation)

An imaging system wherein an optical signal is transmitted to both a sample to be measured and a rotating element which is calibrated to the system. A return signal is detected by the system, and a scan analyzer and correction unit uses the system calibration information along with synchronization i ...


7
Eric A Swanson: Method and apparatus for acquiring images using a ccd detector array and no transverse scanner. Massachusetts Institute of Technology, Weingarten Schurgin Gagnebin & Hayes, November 7, 1995: US05465147 (327 worldwide citation)

An apparatus and method for acquiring an at least one dimensional digital image of a region of an object using an optical source which outputs a first optical beam having a short coherence length. A splitter splits the first optical beam into a reference beam and an object beam. The reference beam t ...


8
Eric A Swanson, Stephen R Chinn: Method and apparatus for performing optical measurements using a rapidly frequency-tuned laser. Massachusetts Institute of Technology, Testa Hurwitz & Thibeault, September 21, 1999: US05956355 (291 worldwide citation)

An optical system, in one embodiment including an external-cavity frequency-tuned laser having a tunable longitudinal cavity mode and a center tunable wavelength. The external-cavity frequency-tuned laser includes an optical cavity, an optical gain medium positioned within the optical cavity, and a ...


9
Eric A Swanson, Stephen R Chinn: Method and apparatus for performing optical frequency domain reflectometry. Massachusetts Institute of Technology, Testa Hurwitz & Thibeault, December 12, 2000: US06160826 (274 worldwide citation)

Method of performing OFDR on a sample comprising steps of: providing an external-cavity frequency-tuned laser having an optical cavity of effective length; tuning the laser to generate a change in wavelength; changing the effective length of the optical cavity proportionally to the change in wavelen ...


10
Eric A Swanson, Stephen R Chinn: Apparatus and method for accessing data on multilayered optical media. Massachusetts Institute of Technology, Testa Hurwitz & Thibeault, July 21, 1998: US05784352 (206 worldwide citation)

Apparatus and methods for accessing data on a multilayered optical storage medium. The apparatus uses the time-of-flight of illumination directed to and reflected by the layers of the optical medium to access data stored on a desired layer of the medium. More particularly, alterations in illuminatio ...