Wave-front Sensing and correction for 4-meter LAMOST | |
Xi Zhang ; Deqing Ren ; Yongtian Zhu ; Jiangpei Dou | |
2009-09-17 | |
会议日期 | 2008-8-2 |
会议地点 | San Diego, CA |
关键词 | wave-front sensing residual aberration LAMOST LabVIEW |
卷号 | 7439 |
期号 | 7439 |
页码 | Vol.7439 0V-1-12 |
英文摘要 |
LAMOST is a 4m spectroscopic telescope recently operational at Xinglong, China. Several active optics are being used to remove optical aberration of the telescope, but large residual aberration exists since the active optics actuators on the telescope’s segmented mirrors cannot provide enough precision. We proposed a wave-front sensing system and the corresponding algorithm to measure this low frequency residual aberration. We developed a compact Shack-Hartmann wave-front sensor that can
use point source as well as extended structure images for wave-front sensing and can achieve good measurement accuracy. The wave-front sensing algorithm is realized by LabVIEW that is based on block-diagram programming and is suitable for rapid prototype development. Combined with deformable mirrors, the system will be able to provide a fine wave-front correction and therefore eventually remove the residual aberration for LAMOST. The wave-front sensor and the DMs will also be used for our high-contrast imaging coronagraph to remove speckle noise for the direct imaging of exoplanets. |
会议主办者 | The International Society for Optical Engineering |
会议录 | Astronomical and Space Optical Systems
![]() |
会议录出版者 | SPIE |
学科主题 | 郭守敬望远镜(LAMOST) ; 主动光学 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/578] ![]() |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_天文光谱和高分辨成像技术研究室_会议论文 |
推荐引用方式 GB/T 7714 | Xi Zhang,Deqing Ren,Yongtian Zhu,et al. Wave-front Sensing and correction for 4-meter LAMOST[C]. 见:. San Diego, CA. 2008-8-2. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论