Method and apparatus for controlling a deformable mirror
US7203552B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Nov 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method, or corresponding apparatus, for controlling deformation of a structure, in part, includes applying a command signal at a first signal level to at least one actuator mechanically coupled to a structure, the first signal level known to produce an energy level in the actuator(s) substantially the same as an energy level currently stored by the actuator(s). The method enables the actuator(s) to respond to the command signal by applying an electrical reference to the actuator(s). The method drives the command signal from the first signal level to a second signal level, changing the actuator(s) in at least one dimension as a function of the command signal, which results in a corresponding deformation of the structure. The method electrically disables the actuator(s) by removing the electrical reference, which results in maintaining deformation of the structure defined by energy stored by the actuator(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.