| 大视场CCD成像系统像面均匀性测试技术研究 |
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| 引用本文： | 张鑫,林家明,张哲,秦志峰,郭毅,沙定国.大视场CCD成像系统像面均匀性测试技术研究[J].光学技术,2005,31(6):846-848. |
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| 作者姓名： | 张鑫 林家明 张哲 秦志峰 郭毅 沙定国 |
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| 作者单位： | 北京理工大学,信息科学技术学院光电工程系,北京,100081;北京电子科技学院,北京,100071 |
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| 摘 要： | 以光度学为理论基础,研究了大视场CCD成像系统像面均匀性测试技术。论述了600~800mm非对称、双半球不等半径积分球的设计方案。对像面均匀性测试系统的积分球出口进行了测试,出口处的照度不均匀性不高于2.3%,照度不稳定性不高于2.7%,积分球后半球内表面的亮度不均匀性不高于4.4%。在对测试结果进行误差分析的基础上,对大视场CCD摄像机进行了实际测试。结果表明,该装置可广泛应用于光电成像系统的像面均匀性测量。
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| 关 键 词： | 像面均匀性 积分球 朗伯面 |
| 文章编号： | 1002-1582(2005)06-0846-03 |
| 修稿时间： | 2004年11月26 |
Research on measuring technique for image sensors' uniformity of the CCD image-forming system with large-field angle |
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| ZHANG Xin,LIN Jia-ming,ZHANG Zhe,QIN Zhi-feng,GUO Yi,SHA Ding-guo.Research on measuring technique for image sensors' uniformity of the CCD image-forming system with large-field angle[J].Optical Technique,2005,31(6):846-848. |
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| Authors: | ZHANG Xin LIN Jia-ming ZHANG Zhe QIN Zhi-feng GUO Yi SHA Ding-guo |
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| Institution: | ZHANG Xin~1,LIN Jia-ming~1,ZHANG Zhe~2,QIN Zhi-feng~1,GUO Yi~1,SHA Ding-guo~1 |
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| Abstract: | Based on the theory of photometry,measuring image sensors' uniformity of the CCD image-forming system with large-field angle is researched.An initiate structure of integrating sphere,with 600～800mm asymmetric double-hemisphere,was manufactured.At the outlet of the integrating sphere,the heterogeneity of illuminance is less than or equal to 2.3%,the instability of illuminance is less than or equal to 2.7%,and the heterogeneity of luminance of the inner surface is less than or equal to 4.4%.On the basis of the error analysis of testing results,the experiment of the CCD camera with large-field angle indicates that this device can be widely utilized in the measuring of image sensors' uniformity of image-forming systems. |
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| Keywords: | image sensors' uniformity integrating sphere Lambert surface |
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