【摘要】 提出了一种用子孔径拼接法检测大口径望远镜的方案,分析了五角棱镜由于机械运动引起的在三维方向有微小偏角时使光束转向改变波前的复杂情况;计算机模拟试验证明了由于机械运动引起的波前改变量是可分离的,有利于五角棱镜在大口径望远镜中发挥最佳效能。更多还原

【Abstract】 A method for large aperture telescope testing by subapertures stiching is proposed. And wavefront changes through pentagonal prisms with tiny 3D angles caused by mechanism is analyzed. It is proved by computer simulation test that wavefront changes caused by mechanism can be separated and is propitious to acquire the best result of pentagonal prisms for large aperture telescope testing.更多还原