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1. (WO2010123892) SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY (OCT) METHOD AND SYSTEM

Pub. No.:    WO/2010/123892    International Application No.:    PCT/US2010/031742
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Wed Apr 21 01:59:59 CEST 2010
IPC: G01B 9/02
A61B 5/00
G01N 21/00
G01N 33/483
Applicants: D4D TECHNOLOGIES, LLC
Inventors: BONNEMA, GARRET, T.
QUADLING, HENLEY, S.
QUADLING, Mark, S.
Title: SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY (OCT) METHOD AND SYSTEM
Abstract:
A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.