This study is useful to pentagonal prism manufacture process and adjustment,and helpful to correct wave-front error of scanning beam turning during wave-front measurement of large aperture telescope.

• 指出此研究结果有利于五角棱镜的加工和棱镜调整,还有利于大口径望远系统波前检测过程中扫描光束转向的波前误差的修正。