| 机载航空侦察相机调焦机构设计 |
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| 引用本文： | 董斌,田海英,郑丽娜,许永森.机载航空侦察相机调焦机构设计[J].光机电信息,2010,27(12):73-76. |
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| 作者姓名： | 董斌 田海英 郑丽娜 许永森 |
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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： | 本文针对一种机载和航空侦察相机,研究了导致航空相机焦面偏离的各种原因,指出温度、大气压力变化和照相距离的变化,是导致相机离焦的主要原因。通过对该原因的分析、研究,确定了自动调焦系统方案,设计了一套原理简单、结构可靠的调焦机构。对该调焦机构进行精度分析并进行了相关的试验。试验结果表明,该调焦机构设计合理可行。
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| 关 键 词： | 调焦机构 凸轮 直线导轨 误差分析 |
Design of Auto-focusing Gear on Airborne Reconnaissance Camera |
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| DONG Bin,TIAN Hai-ying,ZHENG Li-na,XU Yong-sen.Design of Auto-focusing Gear on Airborne Reconnaissance Camera[J].OME Information,2010,27(12):73-76. |
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| Authors: | DONG Bin TIAN Hai-ying ZHENG Li-na XU Yong-sen |
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| Affiliation: | DONG Bin,TIAN Hai-ying,ZHENG Li-na,XU Yong-sen (Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China ) |
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| Abstract: | Aiming at a kind of airborne reconnaissance camera, different defocusing reasons were researched in this paper. It was concluded that the changes of temperature, pressure and imaging distance were the key culprits. By analyzing the defocusing reasons, a scheme of auto-focusing system was proposed and a simple, reliable focusing gear was designed. Some precision analysis tests for the focusing gear were fulfilled. The results showed that the gear was feasible and reasonable. |
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| Keywords: | focusing mechanism cam liner guides error analysis |
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