| 一种机载多光谱相机的光学系统设计 |
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| 引用本文： | 孙鑫,白加光,王忠厚,白清兰,黄旻.一种机载多光谱相机的光学系统设计[J].光子学报,2009,38(12). |
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| 作者姓名： | 孙鑫 白加光 王忠厚 白清兰 黄旻 |
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| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710119;中国科学院研究生院,北京,100049
2. 中国科学院西安光学精密机械研究所,西安,710119 |
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| 摘 要： | 采用外视场拼接的实施方案实现了机载多光谱相机宽幅覆盖和高空间分辨率的需求.先通过探测能力估算和指标要求论证了子系统的设计参量,然后基于光线追迹的原理给出了光学子系统的设计结果.该子系统采用了6组共9片的双高斯复杂化结构型式,焦距为175 mm,相对孔径为1/3.6,光谱范围500～900 nm,全视场角18°.该设计结果成像质量高,色差、畸变及弥散斑尺寸均满足系统拼接要求.该系统对加工装调要求适中,可为该类多光谱相机的设计提供参考.
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| 关 键 词： | 机载 多光谱相机 外视场拼接 探测能力 光学设计 |
Optical System Design of an Airborne Multispectral Camera |
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| SUN Xin,BAI Jia-guang,WANG Zhong-hou,BAI Qing-lan,HUANG Min.Optical System Design of an Airborne Multispectral Camera[J].Acta Photonica Sinica,2009,38(12). |
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| Authors: | SUN Xin BAI Jia-guang WANG Zhong-hou BAI Qing-lan HUANG Min |
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| Abstract: | The scheme of dual-camera combination is given to obtain high spatial resolution and wide pushbroom scanning width for airborne multispectral camera.The parameters of the optical subsystem are determined by system detecting capability estimation and user′s requirement.Subsequently,the subsystem design is pressented based on ray-tracing technique.The subsystem adopts the double-gauss configuration,which has an effective focal length of 175 mm,a field of view of 18°,an F-number of F/3.6 and the spectral range of 500～900 nm..The result is highly optimized to meet the requirement of combination.The moderate tolerance calculation results show that the system is easy to be fabricated and assembled. |
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| Keywords: | Airborne Multispectral camera FOV combination Detecting capability Optical design |
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