Acton D S
Appl Opt. 1995 Dec 1;34(34):7965-8. doi: 10.1364/AO.34.007965.
Adaptive optical systems are designed to compensate for wave-front errors caused by atmospheric turbulence. In addition, they may also correct for wave-front errors associated with fixed optical aberrations in the host telescope. In general, however, adaptive optical systems cannot sense wave-front errors caused by imperfections in their own internal optical components. Consequently, these fixed internal errors will remain uncorrected. The problem of fixed internal aberrations has been noted in a segmented adaptive optics system designed for solar astronomy. This problem has been eliminated by measurement of the fixed errors, off line, through the use of a simple adaptation of a Hartmann test. Results from a recent experiment demonstrating the correction of the errors are presented.
自适应光学系统旨在补偿由大气湍流引起的波前误差。此外，它们还可以校正与主望远镜中固定光学像差相关的波前误差。然而，一般来说，自适应光学系统无法感知由其自身内部光学元件的缺陷所引起的波前误差。因此，这些固定的内部误差将得不到校正。在为太阳天文学设计的分段自适应光学系统中，已经注意到了固定内部像差的问题。通过使用一种简单的哈特曼测试变体，离线测量固定误差，这个问题已得到解决。本文给出了最近一个证明误差得到校正的实验结果。
