Abstract
Steward Observatory is completing the manufacture of a deformable f/15 secondary mirror for the 6.5 m Multiple Mirror Telescope conversion that will, along with the wavefront sensing system, compensate for atmospheric turbulence. A potential difficulty of an adaptive secondary mirror is the ability to verify the commanded mirror shapes of a large convex deformable surface. An optical design is presently being implemented to test the deformable mirror's closed loop control system by optically projecting an artificial star to simulate starlight in the actual telescope. The test system has been designed to verify the control system by fitting into both a laboratory test structure as well as the telescope support structure itself. The optical design relies on two wavelength computer generated holograms used to remove spherical aberration as well as aid in the alignment of the test system optics by projecting alignment patterns.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 110-117 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3779 |
| DOIs | |
| State | Published - 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1999 Current Developments in Optical Design and Optical Engineering VIII - Denver, CO, USA Duration: Jul 19 1999 → Jul 21 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering