A mirror has been fabricated with the shape of an off-axis section of a paraboloid by grinding and polishing a sphere into a prestressed blank. The applied stresses were then removed allowing the mirror to spring into the desired paraboloidal shape. The 36-cm diam off-axis section deviated 9.9-µm rms from the polished sphere. The final surface deviated 0.03-µm rms from the desired off-axis section.
© 1980 Optical Society of America
Jerry E. Nelson, George Gabor, Leslie K. Hunt, Jacob Lubliner, and Terry S. Mast, "Stressed mirror polishing. 2: Fabrication of an off-axis section of a paraboloid," Appl. Opt. 19, 2341-2352 (1980)