System for performing dual path, two-dimensional optical coherence tomography (OCT)
US9696134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2013 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Oct 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system (10) for measuring a physical characteristic of an object (11) using dual path, two-dimensional Optical Coherence Tomography (OCT) includes an extended broadband light source (13) producing an incident light beam (14) and an interferometer (15) having a beam splitter (16) that splits the incident beam into first and second component (17, 18) beams and directs the second component beam (18) on to a moveable mirror (19) for creating an optical path difference between the first component beam (17) and a reflection (20) of the second component beam. A focusing lens (21) having a focal plane (22) focuses the first component beam and the reflection of the second component beam to form a fringe pattern (23) on the focal plane, and a configurable imaging system (25) images the fringe pattern on to a plane (12) of the object to allow two-dimensional measurement of the object without spatial scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.