Efficient modulated imaging
US10342432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jan 17, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0077
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for turbid sample measurement comprising a plurality of light sources for illuminating a turbid sample target area with non-spatial structured light, a projection system for illuminating the turbid sample target area with spatial structured light, a sensor for collecting light from the turbid sample target area, and a processor to analyze the data captured by the sensor to yield scattering and absorption coefficients of the turbid sample. A method comprises illuminating the sample with spatial structured light, collecting light reflected from the sample at a number of wavelengths, illuminating the sample with non-spatial structured light, collecting light reflected from the sample at a number of wavelengths, and combining the measurements of the collected light to obtain the optical properties of the sample and/or the concentration of absorbing or fluorescent molecules. The wavelengths of the spatial and non-spatial light sources are preferably different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.