Single crystal domain driven bender actuator
US5142186A · kind A · utility
73Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1991 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Aug 5, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/204
Abstract
A single crystal bender actuator for selectively positioning a movable precision optical or acoustical component is described which comprises a single crystal of barium titanate, barium strontium titanate, barium lead titanate, potassium niobate tantalate, lead titanate-lead magnesium niobate or other material in which a special domain structure can be induced to produce a very high strain bimorph configuration, the single crystal operatively interconnecting support structure and the movable component, and means for selectively applying an electric field of controllable field strength to the crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.