Thermo-optical method of phrase transformational transduction
US10686116B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Aug 16, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Aug 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R23/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Described herein is the use of large phase transformational strain in relaxor ferroelectric single crystals for broadband sound generation. The technique exploits the thermo-optical triggering and thus an opto-acoustic effect of ferroelectric phase transformation piezocrystals under mechanical bias conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.