| 长焦距宽视场离轴三反光管设计 |
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| 引用本文： | 杨宇飞,颜昌翔.长焦距宽视场离轴三反光管设计[J].红外与激光工程,2015,44(7):2070-2074. |
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| 作者姓名： | 杨宇飞 颜昌翔 |
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| 作者单位： | 1.中国科学院长春光学精密机械与物理研究所,吉林 长春 130033; |
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| 基金项目： | 国家863高新技术发展计划(2011AA12A103);中国地质调查局工作项目(1212011120227) |
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| 摘 要： | 针对大口径、长焦距、宽视场平行光管高像质的应用需求, 提出一种采用离轴三反射镜结构的平行光管。从共轴三反理论出发, 推导出系统的初始结构;并且在用zemax软件优化时, 提出一种基于ZPL语言优化离轴量的方法。设计出一个焦距10 m, 视场21的离轴三反平行光管。设计结果表明, 系统像质接近衍射极限, 全视场波像差RMS值优于/200(=632.8 nm), 系统总长度小于f'/3, 为大口径、长焦距、宽视场光管设计提供了一种设计方法。
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| 关 键 词： | 平行光管 离轴三反 长焦距 宽视场 ZPL |
| 收稿时间： | 2014-11-03 |
Optical design of the off-axis three-mirror anastigmatic collimator with long focal length and wide field |
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| Affiliation: | 1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;2.University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | For the application demand of high image quality collimator with large diameter, long focal length and wide field, an off-axis three-mirror configuration for the light collimator was proposed. Based on the coaxial three-mirror configuration theories, the computation of the initial structure of the system was dervied, and a method of optimizing the off-axis amount was put forward by using the ZPL language of zemax software. A wide field off-axis three-mirror light tubes was designed, with focal length of 10 m, F-number of 28.57. Results show that the modulation transfer function of this system is near the diffraction limit, within the field 21, the full field wave-front aberration is less than /200(=632.8 nm), the total length of the system is less than f'/3, providing a possibility design of long focal length, large diameter, and wide field of view light collimator. |
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