Moretto G, Sebring T A, Ray F B, Ramsey L W
Soar Telescope Project, National Optical Astronomy Observatories, Tucson, Arizona 85719, USA.
Appl Opt. 2000 Jun 1;39(16):2805-12. doi: 10.1364/ao.39.002805.
The next century is knocking on our door, bringing with it the possibility of telescopes even bigger than the 8-10-m-class instruments that have proliferated over the past decade. The fixed spherical reflector is the most economical and pragmatic way to construct an extremely large primary mirror (30-50 m in diameter). Although spherical mirrors have virtues such as manufacturability and identically figured segments, they also create great amounts of spherical aberration and coma. Here we show that there are several catoptric (all-reflecting) corrector designs that enable a fast telescope based on a spherical primary mirror.
下一个世纪即将来临，随之而来的是建造比过去十年中大量涌现的8至10米级仪器更大的望远镜的可能性。固定球面反射镜是构建直径达30至50米的超大主镜最经济实用的方法。尽管球面镜具有可制造性和各部分形状相同等优点，但它们也会产生大量的球差和彗差。在此我们表明，有几种反射式（全反射）校正器设计能够实现基于球面主镜的快速望远镜。
