| 正组补偿变焦距镜头的焦距输出函数 |
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| 引用本文： | 金春水. 正组补偿变焦距镜头的焦距输出函数[J]. 光学精密工程, 1996, 4(4): 11-15 |
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| 作者姓名： | 金春水 |
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| 作者单位： | 中国科学院长春光学精密机械研究所 |
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| 摘 要： | 用于精密跟踪测量的变焦距镜头不同于普通的变焦距镜头,要求其在变信过程中实时输出高精度的系统焦距值.本文从几何光学理论出发,并结合实际变焦距镜头的参数,讨论了二组元大变倍比正组补偿交焦距镜头的焦距输出函数,可避免对变焦距镜头实际焦距的逐点标定工作.
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| 关 键 词： | 变焦距系统 焦距函数 |
| 收稿时间： | 1995-12-27 |
Study on Focal-Length Function or Positive Compensating Zoom Lens |
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| Jin Chunshui. Study on Focal-Length Function or Positive Compensating Zoom Lens[J]. Optics and Precision Engineering, 1996, 4(4): 11-15 |
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| Authors: | Jin Chunshui |
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| Affiliation: | Changchun Institute of Optics and Fine Mechanics Chinese Academy of Soiences, Changchun 130022 |
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| Abstract: | The zoom lens used in capturing and tracing is different from 11ormal zoom lens. It mustoutput the focal-length accurately while verying its focal-length. Ths paper studies the focal length function of the two-component, large zoom ratio, positive compensating zoom lens byusing the actural zoom lens system parameter and gives a method of determining the focallength function. By useing this method, we can avoid the work of point-to--point calibratingfor zoom lens. |
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| Keywords: | Zoom lens Focal-lengtlh function |
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