Abstract
We present an update on the University of Arizona NGST (Next Generation Space Telescope) Mirror System Demonstrator (NMSD). The 2-m NMSD mirror is a lightweight space optic designed for the next generation of space telescopes. Unlike conventional monolithic mirrors, the NMSD mirror is completely active in operation. The mirror uses a thin flexible glass substrate for the optical surface and an actuated lightweight structure for surface accuracy and support. We discuss the mirror’s design and present the initial measurements of the surface figure.
© 2002 Optical Society of America
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