Development of the Multi-channel Photometric Survey Telescope | |
Yuan XY(袁祥岩); Li ZY(李正阳); Niu DS(牛冬生); Lu QS(陆启帅); Jiang FH(姜方华); Wang YF(王跃飞); Li XY(李晓燕); Liang YJ(梁永军) | |
2020-12 | |
会议日期 | 2020-12-13 |
会议地点 | California, United States |
关键词 | Optical Telescope, Multi-channel Survey Image Quality Calibration |
英文摘要 |
The Multi-channel Photometric Survey Telescope (Mephisto) is a wide-field ground based telescope with a 1.6m primary mirror and 2° field of view, proposed by Yunnan University. The telescope will be capable of imaging the northern sky in three colors simultaneously and deliver a colored movie of the universe. The R-C system with lens corrector was adopted as the optical system considering of the image quality requirement, light obscuration and camera arrangement, in which three cubic splitters were adopted for the three channel beams in order to get satisfied image quality over the whole field of view. Dichroic coating on the cubic will lead to nonuniform efficiency on the focal plane due to the polarization problem and wide incident angle, which need calibration. The image quality represented in 80% encircled light energy is around 0.6arcsec. In order to keep the optimal image quality in any operational conditions, a 5-DOF mechanism was designed to actively adjust M2 mirror positions according to the wavefront sensors or by direct star psf. Now the telescope are under developing in Nanjing, expected to be installed at Lijiang observatory before the end of 2021. |
会议录 | Proc. SPIE 11445 |
学科主题 | 天文技术与方法 |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/1773] |
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 |
作者单位 | 南京天文光学技术研究所 |
推荐引用方式 GB/T 7714 | Yuan XY,Li ZY,Niu DS,et al. Development of the Multi-channel Photometric Survey Telescope[C]. 见:. California, United States. 2020-12-13. |
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