Changchun Institute of Optics,Fine Mechanics and Physics,CAS
The manufacturing and testing of an unrotational-symmetric SiC mirror | |
其他题名 | 论文其他题名 |
Yan F.; Fan D.![]() ![]() ![]() | |
2008 | |
发表期刊 | Proceedings of SPIE - The International Society for Optical Engineering
![]() |
ISSN | 0277786X |
卷号 | 7064 |
摘要 | In previous work, wavefront coding technology has been applied on an off-axis three mirror anastigmatic optical system. The secondary mirror is selected as the wavefront coded element. After redesigned the surface of secondary mirror becomes an unusual unrotational-symmetric surface with cubic term, which can not be tested by traditional null testing with compensator. For preparing for manufacturing and testing this kind of elements, a simple cubic surface whose equation is z = 3(x3 +y3)(where x, y is normalized coordinate, = 0.6328m) is polished. The final surface figure is 0.327 (PV) and 0.023/1 (RMS). The manufacture of this surface is introduced in this paper. The tilt component is subtracted to minimize the material removal. Also a non-null method is described for testing the experimental element. The deviation from a reference plane of the cubic surface is regarded as system error. In another words, the ideal cubic surface is set as the reference artificially. A special system error file for interferometer can be created so that the cubic term can be extracted during the testing process automatically. The residual error is just the departure from the ideal figure of the surface under machining by this way. The error and effective range is also presented. But the method may not be practical for the secondary mirror as wavefront coded element because the surface of that kind is convex asphere added cubic term. An improved non-null method is discussed for testing this kind of surface. |
收录类别 | EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/24507 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Yan F.,Fan D.,Zhang B.Z.,et al. The manufacturing and testing of an unrotational-symmetric SiC mirror[J]. Proceedings of SPIE - The International Society for Optical Engineering,2008,7064. |
APA | Yan F.,Fan D.,Zhang B.Z.,&Zhang X.J..(2008).The manufacturing and testing of an unrotational-symmetric SiC mirror.Proceedings of SPIE - The International Society for Optical Engineering,7064. |
MLA | Yan F.,et al."The manufacturing and testing of an unrotational-symmetric SiC mirror".Proceedings of SPIE - The International Society for Optical Engineering 7064(2008). |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Yan-2008-The manufac(502KB) | 开放获取 | -- | 浏览 下载 |
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