Abstract
We have designed a new type of curved deformable mirror with 3000 actuators. It will be used at the 6.5 m MMT telescope in an adaptive optics system to correct the wavefront on a scale of 12 cm, for diffraction limited changes in visible light (0.02 arcsec) and for high contrast imaging with a coronagraph in the near infrared. The mirror's 51 cm diameter glass faceplate, 400 microns thick, will be actuated by tubular piezoceramic actuators on 8 mm centers. The mirror is made concave so it can be used in a simple, compact optical relay with no need for large collimator or camera elements. A prototype deformable mirror with 300 elements that tests the support and assembly techniques is being built for lab tests and will be tested in a closed loop adaptive optics system at the Steward Observatory 2.3m telescope.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 50-57 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3762 |
| State | Published - 1999 |
| Event | Proceedings of the 1999 Adaptive Optics Systems and Technology - Denver, CO, USA Duration: Jul 21 1999 → Jul 22 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering