| 自由曲面棱镜应用 |
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| 引用本文： | 王云霞,卢振武,刘华,张红鑫.自由曲面棱镜应用[J].红外与激光工程,2007,36(3):319-321. |
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| 作者姓名： | 王云霞 卢振武 刘华 张红鑫 |
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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,应用光学国家重点实验室,吉林,长春,130033;中国科学院研究生院,北京,100039
2. 中国科学院长春光学精密机械与物理研究所,应用光学国家重点实验室,吉林,长春,130033 |
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| 摘 要： | 将自由曲面棱镜应用到非共轴系统中克服了该类系统因光学元件偏心和倾斜带来的大离轴像差，从而扩大了系统的视场，并解决了系统装调问题。利用光学设计软件ZEMAX 设计了一个由自由曲面棱镜组成的摄影物镜，它的相对孔径D/f′=1/2.7；总长14.89 mm; 系统的MTF=0.5所对应的空间频率是45 lp/mm 。该系统与传统摄影物镜相比具有结构简单、系统总长度小、元件易装调、像质高等优点。
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| 关 键 词： | 自由曲面 非共轴光学系统 离轴像差 |
| 文章编号： | 1007-2276（2007）03-0319-03 |
| 收稿时间： | 2006/8/21 |
| 修稿时间： | 2006-08-212006-10-09 |
Application of freeform surface prism |
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| WANG Yun-xia,LU Zhen-wu,LIU Hua,ZHANG Hong-xin.Application of freeform surface prism[J].Infrared and Laser Engineering,2007,36(3):319-321. |
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| Authors: | WANG Yun-xia LU Zhen-wu LIU Hua ZHANG Hong-xin |
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| Affiliation: | 1.State Key Laboratory of Applied Optics ,Changchun Institute of Optics ,Fine Mechanics and Physics ,Chinese Academy of Sciences, Changchun 130033, China ; 2.Graduate University of Chinese Academy of Sciences, Beijing 100039,China |
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| Abstract: | The characteristic of imaging in off-axial optical system, and feature of freeform surface are analyzed . Freeform surface prism can efficiently correct off-axial aberration brought by eccentricity and tilt of optical element, to widen the system field and solve the installation problem. A object lens including a freeform surface prism is designed by using optical software ZEMAX. Its relative aperture is D/f′=1/2.7, total length is 14.89 mm, and spatial frequency is 45 lp/mm when MTF=0.5. This system has many merits, such as simple structure, short total length, easy installation, high resolution and so on. |
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| Keywords: | Freeform surface Off-axial optical system Off-axial aberration |
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