| Design and experimental demonstration of variable curvature mirror having a large saggitus variation | |
Xie, Xiaopeng; Zhao, Hui ; Ren, Guorui; Wei, Jingxuan; Menke, Neimule
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| 2014 | |
| 会议名称 | Optical Design and Testing VI |
| 会议日期 | 2014-10-09 |
| 会议地点 | Beijing, China |
| 出版者 | SPIE |
| 会议主办者 | Chinese Optical Society (COS); The Society of Photo-Optical Instrumentation Engineers (SPIE) |
| 产权排序 | 1 |
| 摘要 | Variable curvature mirror (VCM) is a simplified active optical component being capable of changing its curvature radius. Curvature radius variation within a wide range requires that the VCM should be able to generate a large saggitus variation. Besides that, the surface form accuracy should be maintained above a reasonable level. In this paper, a piezoelectric actuation based prototype VCM is designed, constructed and experimentally tested. The thickness of the K9 plane mirror is only 3mm over the full aperture of 100mm. Six piezoelectric actuators are fixed into a base plate and the head of each actuator is connected to an annular ring through the screw thread. With such a structure, the force provided by each actuator can be transformed to the mirror backside through this annular ring. With each actuator generating the same force, the curvature radius can be changed in a uniform way. At the mean time, the surface form accuracy could be adjusted one point by point to compensation asymmetric modes as well. Mathematical analysis and FEA (finite element analysis) are used together to demonstrate the theoretical correctness. Besides that, the prototype VCM is successfully constructed and experiments have been carried out to give a quantitative assessment on the saggitus variation.. |
| 作者部门 | 空间光学技术研究室 |
| 收录类别 | EI |
| 语种 | 英语 |
| ISSN号 | 0277786X |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/22600 |
| 专题 | 空间光学技术研究室 |
| 推荐引用方式 GB/T 7714 | Xie, Xiaopeng,Zhao, Hui,Ren, Guorui,et al. Design and experimental demonstration of variable curvature mirror having a large saggitus variation[C]:SPIE,2014. |
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| Design and experimen（1850KB） | 限制开放 | CC BY | 请求全文 | |||
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