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365彩票官网官方入口

曹一青, 沈志娟

曹一青, 沈志娟. 365彩票官网官方入口[J]. 365赌球. doi: 10.37188/CO.2023-0175
引用本文: 曹一青, 沈志娟. 365彩票官网官方入口[J]. 365赌球. doi: 10.37188/CO.2023-0175
CAO Yi-qing, SHEN Zhi-juan. 365赌球最新网址[J]. Chinese Optics. doi: 10.37188/CO.2023-0175
Citation: CAO Yi-qing, SHEN Zhi-juan. 365赌球最新网址[J]. Chinese Optics. doi: 10.37188/CO.2023-0175

365彩票官网官方入口

doi: 10.37188/CO.2023-0175
基金项目:国家自然科学基金项目(No. 62205168);福建省教育厅中青年教师教育科研项目(No. JAT220294);福建省自然科学基金项目(No. 2020J01916)
详细信息
    作者简介:

    曹一青(1987—),男,江西九江人,博士研究生,讲师,硕士生导师,主要从事于光学成像系统像差分析及智能优化设计方法等方面研究。E-mail:[email protected]

  • 中图分类号:O439

365赌球最新网址

Funds:Supported by National Natural Science Foundation of China (No. 62205168); Young and Middle-aged Teachers’ Educational Research Projects of Fujian Province (No. JAT220294); Natural Science Foundation of Fujian Province (No. 2020J01916)
More Information
  • 摘要:

    太赫兹波具有高穿透性、低能性及指纹谱性等特征,在探测领域被广泛应用,因此设计太赫兹波成像光学系统具有重要的意义和广泛的应用前景。首先,以四块透镜构成的天塞物镜为参考结构,应用近轴光学系统像差理论构建系统像差平衡方程,给出了系统初始结构参数求解函数和方法,再结合光学设计软件对系统像差进一步校正,最终设计了一种用于太赫兹波探测的大孔径光学成像系统。该光学系统由四块同轴折射透镜构成,焦距70 mm,F数为1.4,全视场角为8°,在奈奎斯特频率10 lp/mm处全视场角范围内的调制传递函数(MTF)值均大于0.32,各视场内的弥散斑均方根(RMS)半径均小于艾里斑半径,最后对系统各种公差进行分析和讨论。设计结果表明,本文设计的太赫兹波探测光学成像系统具有孔径大、结构简单且紧凑、成像质量较好且加工性易于实现等特点,满足设计要求,它在太赫兹波段高分辨率探测领域具有重要应用价值。

  • 图 1 光学系统基础结构应用薄透镜简化结构和光路图

    Figure 1. Simplified structure and optical path diagram of thin lens used in optical system infrastructure

    图 2 光学系统初始结构简化及光路图

    Figure 2. Simplified structure and optical path diagram initial structure of the optical system

    图 3 光学系统优化设计后光学结构及光路图

    Figure 3. Optical structure and optical path diagram after optimization design of the optical system

    图 4 优化设计后光学系统的调制传递函数曲线图

    Figure 4. MTF curve diagram after the optimization design of the optical system

    图 5 优化设计后光学系统的点列图

    Figure 5. Spot diagram after the optimization design of the optical system

    图 6 优化设计后光学系统的相对照度曲线图

    Figure 6. Relative illumination curve diagram after the optimization design of the optical system

    图 7 优化设计后光学系统的F-Tan(Theta)畸变曲线图

    Figure 7. F-Tan (Theta) distortion curve diagram after the optimization design of the optical system

    图 8 良率预估曲线图

    Figure 8. Yield estimate curve

    表  1 光学系统设计指标

    Table  1. Design specifications of the optical system

    Parameter Value
    Wavelength band/μm 30-35
    Effective focal length/mm 70
    Full field of view angle/° 8
    F-number 1.4
    Pixel size/μm 52×52
    Pixel 240×320
    下载: 导出CSV

    表  2 光学系统初始结构的一阶光学参量(单位:mm−1, 除了已经标注)

    Table  2. First-order optical parameter of the initial structure of the optical system (in mm−1, unless otherwise stated)

    $ \Phi_{1} $ $ \Phi_{2} $ $ \Phi_{3} $ $ \Phi_{4} $ $ d_{1} $ $ d_{1} $ $ d_{3} $
    −0.0157 0.0356 −0.0201 0.0264 6 mm 15.51 mm 80 mm
    下载: 导出CSV

    表  3 KRS-5和CsBr材料的Sellmeier函数拟合参数

    Table  3. Sellmeier function fitting parameters of KRS-5 and CsBr material

    Sellmeier fitting parameters material
    KRS-5 CsBr
    $ {K}_{1} $ 1.8293958 0.9533786
    $ L_{1} $ 2.25×10−2 8.20189243×10−3
    $ {K}_{2} $ 1.6675593 0.8303809
    $ L_{2} $ 6.25×10−2 2.79396908×10−2
    $ {K}_{3} $ 1.1210424 2.847172
    $ L_{3} $ 0.1225 1.41646892×104
    $ {K}_{4} $ 4.513366×10−2 -
    $ L_{4} $ 0.2025 -
    $ {K}_{5} $ 12.380234 -
    $ L_{3} $ 2.70898681×104 -
    下载: 导出CSV

    表  4 光学系统优化设计后的光学结构参数

    Table  4. Optical structure parameters after the optimization design of the optical system

    Surface Type Radius/mm Thickness/mm Material
    1 Even Aspheric (STOP) −83.93 6.28 CsBr
    2 Even Aspheric 46.66 0.70
    3 Even Aspheric 27.45 14.98 KRS-5
    4 Even Aspheric 185.48 7.65
    5 Even Aspheric −27.00 17.50 CsBr
    6 Standard 32.64 3.25
    7 Even Aspheric 38.61 17.50 KRS-5
    8 Standard 316.43 35.47
    Image plane Standard Infinite
    下载: 导出CSV
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