拼接菲涅耳透镜子镜失调误差分析  

Analysis of Stitched Fresnel Lens Segmented Mirrors Miss-Adjustment Error

作　　者：汪利华[1] 吴时彬[1] 杨伟[1] 任戈[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209

出　　处：《光学学报》2016年第7期138-145,共8页Acta Optica Sinica

摘　　要：大口径菲涅耳透镜由多个子镜拼接而成,子镜失调误差会影响拼接菲涅耳透镜的成像质量,以瑞利判据作为评价标准,根据菲涅耳透镜波前像差理论,分析了拼接菲涅耳透镜子镜各个自由度失调误差公差允限,给出了理论计算公式。分析表明:拼接菲涅耳透镜F数越大,各自由度失调误差公差允限越宽松。采用Zemax软件进行理论仿真,利用干涉仪对拼接波前进行实验检测,检测结果显示,拼接波前与理论计算最大误差为0.006λ,验证了理论的正确性。分析结果为拼接菲涅耳透镜光机设计、检测与装调提供了理论依据与指导。Fresnel lens with large aperture is stitched by multiple segmented mirrors,and miss-adjustment error of segmented mirror will affect imaging quality of stitched Fresnel lens.Using the Rayleigh criterion as evaluation criteria,according to Fresnel lens wave-front aberration theory,each degree of freedom allowed limit for Fresnel lens miss-adjustment error tolerance is analyzed,and the theoretical formula is given.Analysis result shows the bigger the stitched Fresnel lens F-number is,the looser each freedom degree of the miss-adjustment error tolerance limit becomes.Using Zemax software to simulate,the stitched Fresnel lens wave-front is tested by interferometer.The result shows that the maximum error between the stitched wave-front and the theoretical calculation is 0.006λ,which verifies the correctness of the theory.The results provide a theoretical basis and guidance for design,test and alignment of the stitched Fresnel lens.

关 键 词：测量 误差分析 拼接衍射透镜 菲涅耳透镜 光学波前 

分 类 号：O435[机械工程—光学工程]