Experimental research on the sampling point number of LAMOST active optics wavefront test | |
Yong Zhang | |
2006-06-26 | |
会议录名称 | Ground-based and Airborne Telescopes |
卷号 | 6267 |
期号 | 6257 |
页码 | Vol.6257 35-1-12 |
会议日期 | 2006-5-24 |
会议地点 | Orlando, FL |
会议主办者 | The International Society for Optical Engineering |
出版者 | SPIE |
摘要 |
As is known to all, the LAMOST active optics wavefront test is realized by Shack-Hartmann Wavefront Sensor. But because of the characteristics and difficulties of the LAMOST, it is the key problem in the design of LAMOST Shack-Hartmann Wavefront Sensor to select and decide the sampling point number corresponding to one segment of LAMOST.
In this paper we mainly discuss the sampling point number experiment by simulating different numbers of Shack-Hartmann sampling points from one LAMOST segment based on the Large Aperture Active Optics Experiment Telescope Device, which is briefly introduced with LAMOST. After the introduction, the main contents of this article are given including the following three experimental analysis parts. The first experimental analysis is the active optics tests, active optics close loop corrections and comparisons among experiments with different sampling point numbers. The second is the fitting and correction of the low-frequency aberration items existing in the system with about twenty sampling points. The last is that the low-frequency aberrations such as astigmatism and defocus are generated and then corrected with only twenty sampling points after close loop correction with all sampling points. Finally some primary conclusions of LAMOST Shack-Hartmann Wavefront Sensor sampling point number are reached and given. |
关键词 | Active Optics Lamost Shack-hartmann Wavefront Sensor |
学科领域 | 郭守敬望远镜(lamost) ; 主动光学 |
文献类型 | 会议论文 |
条目标识符 | http://ir.niaot.ac.cn/handle/114a32/441 |
专题 | 会议论文 |
推荐引用方式 GB/T 7714 | Yong Zhang. Experimental research on the sampling point number of LAMOST active optics wavefront test[C]:SPIE,2006:Vol.6257 35-1-12. |
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