Integrated liquid crystal acoustic transducer
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorJonathan Bernstein
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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.
Claims20
An integrated liquid crystal acoustic transducer, comprising:
- a substrate chip having a through hole;
- a movable plate electrode;
- means for resiliently mounting said movable plate electrode across said hole in said substrate chip;
- a perforated electrode spaced from said movable plate electrode and mounted across said hole in said substrate chip;
- and
- a liquid crystal medium, disposed between said electrodes, whose polarization vector orientation changes in response to electrical and acoustic input to reciprocally convert between electric and acoustic energy.
An integrated liquid crystal acoustic microphone comprising:
- a substrate chip having a through hole;
- a movable plate electrode;
- means for resiliently mounting said movable plate electrode across said hole in said substrate chip;
- a perforated electrode spaced from said movable plate electrode and mounted across said hole in said substrate chip;
- and
- a liquid crystal medium, disposed between said electrodes, whose polarization vector orientation changes in response to an acoustic input producing a change in electrical output representative of the acoustic input.
An integrated liquid crystal acoustic hydrophone comprising:
- a substrate chip having a through hole;
- a movable plate electrode;
- means for resiliently mounting said movable plate electrode across said hole in said substrate chip;
- a perforated electrode spaced from said movable plate electrode and mounted across said hole in said substrate chip;
- and
- a liquid crystal medium, disposed between said electrodes, whose polarization vector orientation changes in response to an acoustic input producing a change in electrical output representative of the acoustic input.
An integrated liquid crystal acoustic loudspeaker comprising:
- a substrate chip having a through hole;
- a movable plate electrode;
- means for resiliently mounting said movable plate electrode across said hole in said substrate chip;
- a perforated electrode spaced from said movable plate electrode and mounted across said hole in said substrate chip;
- and
- a liquid crystal medium, disposed between said electrodes, whose polarization vector orientation changes in response to an electrical input producing a change in acoustic output representative of the electrical input.
Dependencies are inferred from the claim text.