Aberration fields of off-axis astronomical telescopes induced by rotational misalignments
文献类型：期刊论文
| 作者 | Ju, G. H.; Ma, H. C.; Yan, C. X. |
| 刊名 | Optics Express
 |
| 出版日期 | 2018 |
| 卷号 | 26期号:19页码:24816-24834 |
| 关键词 | 5th-order optical aberrations freeform surfaces theory nat systems symmetry alignment performance Optics |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/oe.26.024816 |
| 英文摘要 | Due to the absence of rotational symmetry, off-axis astronomical telescopes with off-set pupil become subject to rotational misalignments. Rotational misalignments of large off-axis minors with reference to their geometric center can greatly degrade the imaging quality. This paper presents an in-depth discussion on the net aberration fields of off-axis astronomical telescopes induced by rotational misalignments. Aberration function of off-axis telescopes with rotational misalignments is derived based on the framework of nodal aberration theory. Expressions of several important aberrations are obtained under some approximations. Then the specific field characteristics of these aberrations are presented and explicated. Meanwhile, we demonstrate that rotational misalignments can be converted to a kind of surface decenters; on the other hand, the effects of rotational misalignments have their special features which are different from the effects of general surface decenters. Besides, some other insightful discussions are further presented. This work is also applicable to the rotational misalignments of the off-axis segments of primary mirror in segmented mirror astronomical telescopes. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60883]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Ju, G. H.,Ma, H. C.,Yan, C. X.. Aberration fields of off-axis astronomical telescopes induced by rotational misalignments[J]. Optics Express,2018,26(19):24816-24834. |
| APA | Ju, G. H.,Ma, H. C.,&Yan, C. X..(2018).Aberration fields of off-axis astronomical telescopes induced by rotational misalignments.Optics Express,26(19),24816-24834. |
| MLA | Ju, G. H.,et al."Aberration fields of off-axis astronomical telescopes induced by rotational misalignments".Optics Express 26.19(2018):24816-24834. |
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