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首页> 外文会议>Conference on Optical Design and Engineering; Sep 30-Oct 3, 2003; St.Etienne, France >Optical design of a Michelson wide-field multiple-aperture telescope
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Optical design of a Michelson wide-field multiple-aperture telescope

机译：迈克尔逊广角多孔径望远镜的光学设计

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摘要

Multiple-Aperture Optical Telescopes (MAOTs) are a promising solution for very high resolution imaging. In the Michel-son configuration, the instrument is made of sub-telescopes distributed in the pupil and combined by a common telescope via folding periscopes. The phasing conditions of the sub-pupils lead to specific optical constraints in these subsystems. The amplitude of main contributors to the wavefront error (WFE) is given as a function of high level requirements (such as field or resolution) and free parameters, mainly the sub-telescope type, magnification and diameter. It is shown that for the periscopes, the field-to-resolution ratio is the main design driver and can lead to severe specifications. The effect of sub-telescopes aberrations on the global WFE can be minimized by reducing their diameter. An analytical tool for the MAOT design has been derived from this analysis, illustrated and validated in three different cases: LEO or GEO Earth observation and astronomy with extremely large telescopes. The last two cases show that a field larger than 10 000 resolution elements can be covered with a very simple MAOT based on Mersenne paraboloid-paraboloid sub-telescopes. Michelson MAOTs are thus a solution to be considered for high resolution wide-field imaging, from space or ground.
机译：多孔径光学望远镜（MAOT）是超高分辨率成像的有前途的解决方案。在米歇尔森构造中，该仪器由散布在瞳孔中的子望远镜构成，并通过一台普通望远镜通过折叠潜望镜进行组合。子瞳孔的定相条件导致这些子系统中出现特定的光学约束。波前误差（WFE）的主要贡献者的幅度是高水平要求（例如场或分辨率）和自由参数（主要是子望远镜的类型，放大率和直径）的函数。结果表明，对于潜望镜，视场分辨率是设计的主要驱动力，并且可能导致严格的规格要求。子望远镜像差对整体WFE的影响可以通过减小其直径来最小化。从这种分析中得出了用于MAOT设计的分析工具，并在三种不同情况下进行了说明和验证：LEO或GEO地球观测和使用超大型望远镜的天文学。最后两个案例表明，使用基于梅森抛物面-抛物面子望远镜的非常简单的MAOT可以覆盖大于10000个分辨率元素的场。因此，迈克尔逊MAOT是从太空或地面进行高分辨率宽视场成像的一种解决方案。

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