Swept source optical coherence tomography and method for stabilizing phase thereof
US9354038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jan 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/4795
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an embodiment, a computer 16, which generates tomographic images based on spectral interference signals detected by a light detector 15 from overlaid reference light emitted by a swept-source type light source 2 of a SS-OCT, split, and then reflected by a fixed reference mirror 8 on one hand and object light reflected by an object to be measured 6 on the other, is caused to function to apply rough correction using a first correction means and then apply detailed correction using a second correction means, to stabilize the phases of the SS-OCT. The phases can be stabilized by eliminating, without adding any expensive, complex hardware, the jitter between the wavelength scanning of a light source of SS-OCT and the timing of collecting the scan data with the light detector as spectral interference signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.