Study on the Surface Deformation of Flat Reflector Under Gravity Load
重力作用下平面反射镜变形研究

The static analysis for the flat reflector of interferometer in unassembled and assembled is studied by finite element method, horizontal and vertical placement under gravity load is analyzed. The calculated PV and RMS values are used to determine whether the distortion and the structure of fixation are reasonable or not. The datum processing is done by Zernike polynomial fittings, the aberration composition in this way is found, some corresponding approaches to improve image quality are carried out.