An overview of radial supporting ways for large-size movement mirror: a case study of a large-aperture rotating prism

Abstract

The paper overviews various supporting ways for large-size movement mirrors, and the advantages and disadvantages of the support methods are summarized. Some valuable optimization methods to improve support effects are also introduced. As a case study, a radial segment-face contact support method is proposed to solve the support problem for a large-aperture rotating prism, and a two-step optimization method is implemented to improve the support effects. The surface deformations under different support separated angles are evaluated. The overview can be as good references for large-size mirror support design in similar opto-mechanical systems especially under movement conditions.