Method for analyzing a diffusing sample by time resolution measurement
US6903825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2001 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Mar 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1455
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for analyzing a diffusing sample comprises steps of: a) illuminating the sample with temporally coherent and wavelength-modulated incident light beam; b) producing a succession of interference signals with the diffuse light; c) combining each interference signal with a reference signal (Ref(t,τ0)) generating a time port; d) extracting the continuous component of each signal characteristic of the predetermined delay (τ0) derived form c); applying a nonlinear function on each of the continuous components of the signals characterizing the predetermined delay (τ0); and f) averaging each of the images, with the non-linear function, of the continuous components of the signals characterizing the predetermined delay (τ0). The invention is useful for observing organs of the human body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.