Aspects of basic OCT engine technologies for high speed optical coherence tomography and light source and other improvements in optical coherence tomography
US7061622B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical coherence tomography (OCT) system including an interferometer provides illuminating light along a first optical path to a sample and an optical delay line and collects light from the sample along a second optical path remitted at several scattering angles to a detector. In one embodiment, illuminating light is directed along a number of incident light paths through a focusing lens to a sample. The light paths and focusing lens are related to the sample and to both the incident light source and the detector. In another embodiment, a focusing system directs light to a location in the sample. A transmission grating or acousto-optic modulator directs light from the sample at an angle representative of the wavelength of the incident light on the transmission grating or acousto-optic modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.