Mapping distortion correction in freeform mirror testing by computer-generated hologram
文献类型：期刊论文
| 作者 | Zeng, X. F.; Zhang, X. J.; Xue, D. L.; Zhang, Z. Y.; Jiao, J. |
| 刊名 | Applied Optics
 |
| 出版日期 | 2018 |
| 卷号 | 57期号:34页码:F56-F61 |
| 关键词 | cgh Optics |
| ISSN号 | 1559-128X |
| DOI | 10.1364/ao.57.000f56 |
| 英文摘要 | Distortion can be introduced in null testing using computer-generated holograms for off-axis aspheres or freeforms with significant deviation. It leads to the failure of testing results to guide deterministic optical processing. In this paper, based on ray tracing and calibration marks applied to a mirror surface, a high-accuracy method is proposed to correct the distortion. The correction error is less than 1 mm. Second and fourth mirrors of a reflective telescope prototype with an F number of 6.5 and field of view of 76 degrees are polished. In the process, distortion is corrected, and the position misalignment error is as small as 0.783 mm. For the sake of alignment, the two mirrors are fixed on a 790 mm x 390 mm SiC substrate. The root-mean-square value of the mirror surface error is 0.0433 lambda (lambda = 0.6328 mu m) after ion beam finishing. (C) 2018 Optical Society of America |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/61052]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Zeng, X. F.,Zhang, X. J.,Xue, D. L.,et al. Mapping distortion correction in freeform mirror testing by computer-generated hologram[J]. Applied Optics,2018,57(34):F56-F61. |
| APA | Zeng, X. F.,Zhang, X. J.,Xue, D. L.,Zhang, Z. Y.,&Jiao, J..(2018).Mapping distortion correction in freeform mirror testing by computer-generated hologram.Applied Optics,57(34),F56-F61. |
| MLA | Zeng, X. F.,et al."Mapping distortion correction in freeform mirror testing by computer-generated hologram".Applied Optics 57.34(2018):F56-F61. |
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