Integrated liquid crystal acoustic transducer
US5335210A · kind A · utility
24Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Oct 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated liquid crystal acoustic transducer includes a substrate chip having a through hole; a movable plate electrode; means for resiliently mounting the movable plate electrode across the hole in the substrate chip; a perforated electrode spaced from the movable plate electrode and mounted across the hole in the substrate chip; and a liquid crystal medium, disposed between the electrodes, whose polarization vector orientation changes in response to electrical and acoustic input to reciprocally convert between electric and acoustic energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.