1m红外太阳望远镜镜面位置误差致光轴偏移分析

发布时间：2018-02-10 06:37

本文关键词： 红外望远镜光学装调光轴偏移像质弯沉灵敏度矩阵　出处：《红外技术》2016年10期 　论文类型：期刊论文

【摘要】：定量分析了云南天文台1 m新真空红外太阳望远镜(简称NVST),副镜失调误差对主光轴偏移的影响。以格里高利双反射系统为例,在综合像质达到衍射极限的前提下,分析了副镜的离心和倾斜误差分别对光轴带来的影响,然后分析了两种因素综合作用下,NVST光轴的可能的偏移量。模拟结果表明当副镜离心和倾斜单独存在且分别小于0.121 mm和0.01?时,像质可达衍射限。当副镜离心与倾斜同时存在且耦合,离心4.5 mm倾斜0.392?时,像质仍可达到衍射限,光轴已偏移0.392?,远大于望远镜设计视场0.083?。因此光轴稳定性是大型望远镜装调的一项必检指标。
[Abstract]:In this paper, the influence of offset error of auxiliary mirror on the main optical axis migration of the 1 m new vacuum infrared solar telescope (NVSTT) at Yunnan Observatory is quantitatively analyzed. Taking Gregory double reflection system as an example, the diffraction limit of the synthetic image quality is reached. The effects of centrifugal and tilt errors on the optical axis are analyzed, and the possible offsets of NVST axis under the combined action of two factors are analyzed. The simulation results show that when the centrifugal and tilt of the secondary mirror exist separately and are less than 0.121 mm and 0.01 mm, respectively? The image quality can reach the diffraction limit. When the secondary mirror centrifuge and tilt exist and coupling, the centrifugation 4.5 mm tilting 0.392? The image quality can still reach the diffraction limit, and the optical axis has shifted from 0.392? Much larger than the telescope design field of view 0. 083? Therefore, the stability of optical axis is a necessary index for the installation of large telescopes.
【作者单位】：云南天文台天文技术实验室;中国科学院大学;云南北方驰宏光电有限公司;
【基金】：国家自然科学基金项目(U1231117U1431122)
【分类号】：P111.41

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