| 双波段航空相机红外调焦机构的设计 |
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| 引用本文： | 聂品,田海英,许永森,陈伟.双波段航空相机红外调焦机构的设计[J].红外,2010,31(9):6-8. |
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| 作者姓名： | 聂品 田海英 许永森 陈伟 |
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| 作者单位： | 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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| 摘 要： | 为了补偿双波段航空相机在复杂环境下产生的离焦，设计了一套调焦机构。该调焦机构通过采用蜗轮蜗杆和
偏心凸轮的传动方式，将凸轮的旋转运动转化为调焦镜的直线运动，解决了离焦问题。该机构具有传动比大、运行平
稳，结构紧凑，抗振、抗冲击，可实现自锁以及模块化等优点。通过计算可知，该机构的调焦镜的位移
精度为0.0026mm，满足使用要求。仿真分析结果表明，该方法具有可行性。
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| 关 键 词： | 航空相机 调焦机构 蜗轮蜗杆 偏心凸轮 |
| 收稿时间： | 2010/7/31 0:00:00 |
| 修稿时间： | 2010/8/10 0:00:00 |
Design of Focusing Mechanism for a Dual-band Aerial Camera |
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| niepin,TIAN Hai-ying,XU Yong-sen and Chen Wei.Design of Focusing Mechanism for a Dual-band Aerial Camera[J].Infrared,2010,31(9):6-8. |
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| Authors: | niepin TIAN Hai-ying XU Yong-sen and Chen Wei |
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| Affiliation: | Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences |
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| Abstract: | To compensate the defocusing of a dual-band aerial camera in a complicated environment,
a focusing mechanism is designed. The mechanism compensates the defocusing by using a worm-gear and an eccentric
cam to convert the rotation of the focusing cam into the straight line motion of a mirror. It has the advantages
of high transmission ratio, stable operation, compact structure, antivibration, self-locking and modularization.
The calculation result shows that its focusing mirror has a displacement precision of 0.0026mm and the simulation
result shows that the method is feasible. |
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| Keywords: | aerial camera focusing mechanism worm-gear eccentricity cam |
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