Acoustic-optical imaging methods and systems
US11957435B2 · kind B2 · utility
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Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Aug 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1787
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acousto-optic imaging method in which light waves and unfocused acoustic waves having various directions of propagation m are emitted in a medium, by spatially modulating the amplitude of the ultrasonic transducers of an array of transducers according to several periodic spatial amplitude modulations j, and the resulting optical signal Smj(t) is captured. For each direction of propagation m, the signals Smj(t) are spatially demodulated in order to determine a signal Sm(t) used to reconstruct the image of the medium.
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