Physics – Optics
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3779..110s&link_type=abstract
Proc. SPIE Vol. 3779, p. 110-117, Current Developments in Optical Design and Optical Engineering VIII, Robert E. Fischer; Warren
Physics
Optics
Scientific paper
Steward Observatory is completing the manufacture of a deformable f/15 secondary mirror for the 6.5m 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.
Bresloff Cynthia J.
Burge James H.
Fitz-Patrick Bruce C.
McGuire Patrick C.
Sarlot Roland J.
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