Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Characterization of freeform optical surfaces based on surface slope | |
Zhao, X.; Y. Zheng; Z. Zhang; J. Zhang; L.-J. Wang and Y.-X. Wu | |
2015 | |
发表期刊 | Guangxue Jingmi Gongcheng/Optics and Precision Engineering
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卷号 | 23期号:7页码:1957-1964 |
摘要 | This paper focuses on the optical freeform surface model in optical design of freeform optical surfaces. Based on the model of conventional Gaussian Radial Basis Function (RBF), a model of Gaussian Radial Basis Function based on slope (Gaussian RBF-BS) was proposed by improving the distribution of basis function and changing the shape factor of basis function. The different types of freeform surfaces were fitted and compared by using models of Gaussian RBF-BS, Gaussian RBF and Zernike polynomials. The results demonstrate that the surface fitting ability of the proposed model is stronger than those of the conventional Gaussian RBF model by 1-2 orders, and it has a stronger surface characteristic ability. Then, the proposed model was used to design a Three Mirror Anastigmat(TMA) system, where the average Modulation Transfer Function (MTF) in whole field of view has reached over 80%. As compared with that of the conventional model based on the RBF, the proposed model enhances the aberration balance ability and improves the image quality of the system. Further analysis indicates that RBF-BS model is much suitable for the characterization of the freeform surface with significant asymmetry and local variation. It is expected to be applied to the design of optical systems with large off-axis magnitudes and fields of view. , 2015, Chinese Academy of Sciences. All right reserved. |
文章类型 | 期刊论文 |
收录类别 | EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/56148 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Zhao, X.,Y. Zheng,Z. Zhang,et al. Characterization of freeform optical surfaces based on surface slope[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(7):1957-1964. |
APA | Zhao, X.,Y. Zheng,Z. Zhang,J. Zhang,&L.-J. Wang and Y.-X. Wu.(2015).Characterization of freeform optical surfaces based on surface slope.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(7),1957-1964. |
MLA | Zhao, X.,et al."Characterization of freeform optical surfaces based on surface slope".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.7(2015):1957-1964. |
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