Wavefront optical spacing of freeform surfaces and its measurement using CGH interferometry

doi:10.1016/j.optlaseng.2022.107350

CIOMP OpenIR

	Wavefront optical spacing of freeform surfaces and its measurement using CGH interferometry
	X. Zhang; H. X. Hu; D. L. Xue; X. Yang; W. Thang; G. B. Qiao and X. J. Zhang
	2023
发表期刊	Optics and Lasers in Engineering
ISSN	0143-8166
卷号	161 页码:10
摘要	For optical surfaces, the distance between the wavefront at ideal design position and that at real surface testing position along the wavefront propagation direction is an important parameter. It determines the on-axis curvature deviation and best-fit sphere radius of the surface under testing, and thus, affects the optical distance, effective focal length, and tolerance design of the optical system. We define the distance as wavefront optical spacing (WOS or spacing d ). The analytical form of the WOS can be utilised in critical tolerance balancing, and its test results can aid in optical system redesign. Aiming at a computer-generated hologram (CGH) interferometric test, in this study, we propose the WOS concept and deduce the coupling relation between the surface error and spacing d , particularly in freeform surface conditions. A cat-eye CGH interferometric method was presented to test the spacing error within a precision of several microns. The simulation and error budget demonstrate that this method can measure the WOS of freeform surfaces. The experimental results indicate that the metrology accuracy is 10.2 +/- 4.3 ism ( P = 95%) (absolute accuracy), 4.5 ism (repeatability), and 2.1 ppm (relative accuracy).
DOI	10.1016/j.optlaseng.2022.107350
URL	查看原文
收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67238
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	X. Zhang,H. X. Hu,D. L. Xue,et al. Wavefront optical spacing of freeform surfaces and its measurement using CGH interferometry[J]. Optics and Lasers in Engineering,2023,161:10.
APA	X. Zhang,H. X. Hu,D. L. Xue,X. Yang,W. Thang,&G. B. Qiao and X. J. Zhang.(2023).Wavefront optical spacing of freeform surfaces and its measurement using CGH interferometry.Optics and Lasers in Engineering,161,10.
MLA	X. Zhang,et al."Wavefront optical spacing of freeform surfaces and its measurement using CGH interferometry".Optics and Lasers in Engineering 161(2023):10.

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
Wavefront optical sp（2837KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载