A system is described to control the figure of a large telescope primary mirror that is composed of many individual segments. The geometry considered, employing hexagonal mirrors, allows a simple and economical control system. The system is shown to be reliable and effective in continuously maintaining the figure to the precision required for optical astronomy.
© 1982 Optical Society of America
Original Manuscript: February 27, 1982
Published: July 15, 1982
Terry S. Mast and Jerry E. Nelson, "Figure control for a fully segmented telescope mirror," Appl. Opt. 21, 2631-2641 (1982)