Solaris cylinder web
Cylindrical mirror glued to the invar cell                                    Completed cylinder
  • The cylinder surface form was prepared before MRF by means of stressed mirror polishing, which strongly reduces the polishing time.
  • The novel capability of the mild cylinder figure correction using the rotational polishing mode of MRF was demonstrated.
  • The novel capability of mild cylinder SSI measurement as a deviation from flat has been proven.
  • The goal of going significantly below the full aperture specifications was achieved.
  • The stability of the results were confirmed based on multiple cylinder measurements.
  • Five cylinder elements were completed according to the specifications as requested.

Deviation from the perfect cylinder: 22.4 nm PVr (4 nm rms).