Design of image-side telecentric off-axis three-mirror anastigmatic systems based on the coaxial parent mirrors
Li, Xijie; Zou, Chunbo; Yang, Jiating
刊名Optik
2021-09
卷号241
关键词Optical system design Anastigmatism design method Coaxial parent mirrors Off-axis anastigmatism balance conditions
ISSN号00304026
DOI10.1016/j.ijleo.2021.166855
产权排序1
英文摘要

Image-side telecentric unobscured optical systems have significant application values in the field of space optics. However, off-axis astigmatism increases with an increase of field of view (FOV), relative aperture and image-side telecentricity, so it's very difficult to design image-side telecentric anastigmatic systems with an ultrawide FOV. To solve these issues, this paper proposes an effective method that is based on the coaxial parent mirrors. By calculating the off-axis aberration optical path of the primary mirror (PM), secondary mirror (SM) and tertiary mirror (TM), and introducing even aspheric surface and adding boundary constraints, a prospective system with a focal length of 400 mm, a relative aperture of 1/3, an FOV of 18° × 6°, and a telecentricity of greater than 0.5°is designed. The design results show that the modulation transfer function (MTF) of the system is greater than 0.7 at the Nyquist frequency of 34 lp/mm, which is close to the diffraction limitation. It has a high imaging quality, thereby proving the image-side telecentric off-axis three-mirror anastigmatic (TMA) system to be effective. © 2021 Elsevier GmbH

语种英语
出版者Elsevier GmbH
内容类型期刊论文
源URL[http://ir.opt.ac.cn/handle/181661/94739]  
专题西安光学精密机械研究所_光学影像学习与分析中心
通讯作者Li, Xijie
作者单位Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
推荐引用方式
GB/T 7714
Li, Xijie,Zou, Chunbo,Yang, Jiating. Design of image-side telecentric off-axis three-mirror anastigmatic systems based on the coaxial parent mirrors[J]. Optik,2021,241.
APA Li, Xijie,Zou, Chunbo,&Yang, Jiating.(2021).Design of image-side telecentric off-axis three-mirror anastigmatic systems based on the coaxial parent mirrors.Optik,241.
MLA Li, Xijie,et al."Design of image-side telecentric off-axis three-mirror anastigmatic systems based on the coaxial parent mirrors".Optik 241(2021).
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