Method for identifying blood particles using a photodetector
US10379027B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 23, 2016 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Mar 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/0883
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for identifying a particle contained in a sample, including illuminating the sample using a light source, the light source producing an incident light wave propagating toward the sample, then acquiring, using a matrix-array photodetector, an image of the sample, the sample being placed between the light source and the photodetector such that the matrix-array photodetector is exposed to a light wave that is the result of interference between the incident light wave and a diffraction wave produced by each particle. The method further includes applying a numerical reconstruction algorithm to the image acquired by the photodetector, to estimate a characteristic quantity of the light wave reaching the detector, at a plurality of distances from the detector. The variation in the characteristic quantity as a function of distance allows the particle to be identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.