Smart phone attachment for 3-D optical coherence tomography imaging
US9638511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Aug 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/02091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for tomographic imaging of a sample. Low-coherence light is split into a sample path and a reference path. A steering optic recombines light in the reference path with light scattered by a sample onto a camera having an areal focal plane array of detector elements such that light in the reference path and light scattered by the sample are characterized by respectively offset propagation vectors at incidence upon the camera. A processor derives depth information from light scattered by the sample on the basis of interference fringes between light in the reference path and light scattered by the sample. The apparatus tracks lateral motion and may be hand-held or attached to a mobile device such as a smartphone, thus enabling 3-D imaging with the mobile device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.