微型光谱仪结构参量的可调节冗余量研究  

Adjustable Redundancy of the Micro Spectrometer Structure Parameter

作　　者：郑海燕[1] 龙亚雪 谈梦科 郭汉明[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《光子学报》2017年第6期190-197,共8页Acta Photonica Sinica

基　　金：国家重点研发计划(No.2016YFF0101603);上海市教育委员会科研创新项目(No.13SG47)资助~~

摘　　要：为了探究Czerny-Turner(CT)光路结构在装配过程中各个光学元件偏离理论光学设计参量时对光谱仪光学性能的影响,建立数学物理模型还原Zemax设计的非对称CT结构光路,在不影响光谱仪分辨率的条件下,调节CT结构中的各元件,得到各元件的可调节冗余量.结果表明,准直镜和衍射光栅偏转角度可调节范围分别为±0.19°和±0.17°;聚光镜和CCD的位置可调节范围都为±0.12mm.以上四个变量的可调节冗余量最小,对光谱仪最终分辨率影响较大.该研究对CT结构中各光学元件机械调节机构的设计具有参考意义.In order to investigate the influence of the optical elements of Czerny-Turner（CT） optical path structure on the optical properties of the spectrometer when the optical elements are deviated from the theoretical design parameters,the mathematical model was established to successfully restore the asymmetric CT optical path structure designed by Zemax,under the condition of unaffecting the spectrometer resolution,the components of adjustable redundancy was got.The results show that the adjustable range of the deflection angle of the collimating mirror and the diffraction grating is ±0.19 and ±0.17 degrees,and the adjustable range of the condenser and the CCD is±0.12 mm.The adjustable range of the above four variables is the smallest,which has a great influence on the final resolution of the spectrometer.The research provides the references for the mechanical adjustment mechanism of each optical element in CT structure.

关 键 词：光谱仪 Czerny-Turner结构 光学设计 分辨率 ZEMAX 

分 类 号：TN202[电子电信—物理电子学]