Swept source optical coherence tomography (OCT) method and system
US8345257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1787
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.