| The design method of CGH for testing the Φ404, F2 primary mirror | |
Xie, Nian; Duan, Xueting ; Li, Hua
| |
| 2014 | |
| 会议名称 | 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2014 |
| 会议日期 | 2014-04-26 |
| 会议地点 | Harbin, China |
| 出版者 | SPIE |
| 会议主办者 | Chinese Academy of Sciences, Institute of Optics and Electronics (IOE); Chinese Optical Society (COS) |
| 产权排序 | 1 |
| 摘要 | In order to accurately test shape quality of the large diameter aspherical mirror, a kind of binary optical element called Computer generated holograms (CGHs) are widely used.The primary role of the CGHs is to generate any desired wavefronts to realize phase compensation. In this paper, the CGH design principle and design process are reviewed at first. Then an optical testing system for testing the aspheric mirror includes a computer generated hologram (CGH) and an imaging element (IE) is disposed. And an optical testing system only concludes a CGH is proposed too. The CGH is designed for measurement of an aspheric mirror (diameter=404mm, F-number=2). Interferometric simulation test results of the aspheric mirror show that the whole test system obtains the demanded high accuracy. When combined the CGH with an imaging element in the Aspheric Compensator, the smallest feature in the CGH should be decreased. The CGH can also be used to test freeform surface with high precision, it is of great significance to the development of the freeform surface. |
| 作者部门 | 系统工程部 |
| 收录类别 | CPCI（ISTP） ; 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/181661/22623 |
| 专题 | 装校技术研究中心 |
| 推荐引用方式 GB/T 7714 | Xie, Nian,Duan, Xueting,Li, Hua. The design method of CGH for testing the Φ404, F2 primary mirror[C]:SPIE,2014. |
| 条目包含的文件 | ||||||
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