Design and analysis of radial supports for a large aperture prism | |
Wen, Wansha1,2,3; Ruan, Ping1,3; Lv, Tao1,2,3 | |
2022 | |
会议日期 | 2021-10-28 |
会议地点 | Shanghai, China |
关键词 | large aperture prism radial support finite element analysis optical surface evaluation |
卷号 | 12166 |
DOI | 10.1117/12.2616346 |
英文摘要 | WFOS (Wide-field Optical Spectrograph) will be seriously affected by atmospheric dispersion on imaging quality in its operating wavelength range1 (0.31-1.0 micron). ADC (Atmospheric Dispersion Corrector)2 can compensate atmospheric dispersion for light deflection of different wavelengths. The main optical elements of a LADC3 (Linear Atmospheric Dispersion Corrector) are two large aperture transmission prisms whose optical axes are placed horizontally. The prisms are placed opposite to 180° and separated by a certain distance in the direction of the optical axis to generate the amount of dispersion compensation. the large-diameter wedge prisms not only make a linear motion in the optical axis direction but also operate rotary motion separately. Because of the non-rotational symmetry and large mass of the wedge prism, gravity has a serious effect on the surface deformation of the prism. In addition, the prisms have to withstand ±20°C temperature change when they work. a support system is proposed and a comparative analysis is operated to estimate performance of support forms with different number of supports. Different circumferential support positions three, four, six, and eight schemes are analyzed and compared. in addition, the influence of different supports layouts based on the six supports scheme are analyzed. The 3D models are established and finite element analyses are conducted to evaluate the support performance via the surface RMS values which show that the design can meet the current design requirements for the support scheme. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
产权排序 | 1 |
会议录 | Seventh Asia Pacific Conference on Optics Manufacture, APCOM 2021 |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
ISBN号 | 9781510652088 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/95761] |
专题 | 西安光学精密机械研究所_光电测量技术实验室 |
通讯作者 | Ruan, Ping |
作者单位 | 1.Key Laboratory of Space Precision Measurement Technology, Chinese Academy of Sciences, No.17 Xinxi Road, Xi'an; 710119, China 2.University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing; 100049, China; 3.Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17 Xinxi Road, Xi'an; 710119, China; |
推荐引用方式 GB/T 7714 | Wen, Wansha,Ruan, Ping,Lv, Tao. Design and analysis of radial supports for a large aperture prism[C]. 见:. Shanghai, China. 2021-10-28. |
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