Computer-controlled fabrication of large-size ground- and space-based optics from glass ceramic Sitall CO-115M

The large technical-scientific achievements made to date in the field of astronomy, space and laser technology have been feasible to a great extent due to forthcoming of the new high-precision otpical ground and space-based system. In this connection, the requirements to the quality of optical surface have enhanced; a range of their overall dimensions has increased; components with off-axial aspherical surfaces, and with an arbitrary shape of outer perimeter of the components and their holes have been used often. Alongside the traditional materials used in the optical manufacture, non-traditional materials find ever-growing use.