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微光像增强器常用荧光粉性能研究

杨武丽 来悦颖 张晓辉 焦岗成 李世龙 郭欣 贾甜甜

杨武丽, 来悦颖, 张晓辉, 焦岗成, 李世龙, 郭欣, 贾甜甜. 微光像增强器常用荧光粉性能研究[J]. 应用光学, 2022, 43(6): 1207-1216. doi: 10.5768/JAO202243.0604023
引用本文: 杨武丽, 来悦颖, 张晓辉, 焦岗成, 李世龙, 郭欣, 贾甜甜. 微光像增强器常用荧光粉性能研究[J]. 应用光学, 2022, 43(6): 1207-1216. doi: 10.5768/JAO202243.0604023
YANG Wuli, LAI Yueying, ZHANG Xiaohui, JIAO Gangcheng, LI Shilong, GUO Xin, JIA Tiantian. Research on properties of commonly-used phosphors for low-level-light image intensifiers[J]. Journal of Applied Optics, 2022, 43(6): 1207-1216. doi: 10.5768/JAO202243.0604023
Citation: YANG Wuli, LAI Yueying, ZHANG Xiaohui, JIAO Gangcheng, LI Shilong, GUO Xin, JIA Tiantian. Research on properties of commonly-used phosphors for low-level-light image intensifiers[J]. Journal of Applied Optics, 2022, 43(6): 1207-1216. doi: 10.5768/JAO202243.0604023

微光像增强器常用荧光粉性能研究

doi: 10.5768/JAO202243.0604023
基金项目: 国防基础科研项目(JCKY2018208B016)
详细信息
    作者简介:

    杨武丽(1994—),女,工程师,主要从事微光像增强器显示器件研究。E-mail:1301777687@qq.com

  • 中图分类号: TN206

Research on properties of commonly-used phosphors for low-level-light image intensifiers

  • 摘要: 荧光粉是微光像增强器荧光屏的关键材料,可将电子图像转换为可见光学图像,其性能对像增强器的分辨力、发光光谱、调制传递函数、余辉等性能有重要影响。针对国内外目前像增强器的发展情况,就国内外像增强器荧光屏常用的P20((Zn,Cd)S∶Ag)、P22(ZnS∶Cu,Al)、P31(ZnS∶Cu)、P43(Gd2O2S∶Tb)和P45(Y2O2S∶Tb)开展相应的性能对比研究,分别对这5种荧光粉的物相结构、光谱特性、发光效率及分辨力等性能进行了表征,分析了不同种类荧光粉的适用条件。结果表明:这5类常用荧光粉对于像增强器的不同性能提升各有贡献,其中分辨力较高的为P43荧光粉,发光效率较高的为P22荧光粉,而人眼观测舒适度最好的则为P45荧光粉。鉴于对微光像增强器高性能的要求,在选用微光像增强器用荧光粉时可选用综合性能较为优越的P22和P43荧光粉,也可根据像增强器的具体性能要求及实际使用需求选用合适的荧光粉种类。
  • 图  1  荧光屏制备工艺流程图

    Fig.  1  Flow chart of preparation process for fluorescent screen

    图  2  荧光粉XRD谱图

    Fig.  2  XRD pattern of phosphor

    图  3  365 nm激发下P20((Zn,Cd)S:Ag)的光谱特性结果图

    Fig.  3  Excitation spectrum of P20 ((Zn, Cd) S:Ag) (λex=365 nm)

    图  4  365 nm激发下P22(ZnS:Cu,Al)的光谱特性图

    Fig.  4  Excitation spectrum of P22 (ZnS:Cu, Al) (λex=365 nm)

    图  5  365 nm激发下 P31(ZnS:Cu)的光谱特性图

    Fig.  5  Excitation spectrum of P31 (ZnS:Cu) (λex=365 nm)

    图  6  254 nm激发下 P43(Gd2O2S:Tb)的光谱特性图

    Fig.  6  Excitation spectrum of P43 (Gd2O2S:Tb) (λex=254 nm)

    图  7  254 nm激发下P45(Y2O2S:Tb)的光谱特性

    Fig.  7  Excitation spectrum of P45 (Y2O2S:Tb) (λex=254 nm)

    表  1  发光效率测试结果

    Table  1  Measurement results for luminous efficiency

    编号屏号发光效率/(lm/W)均值/(lm/W)
    P20115.415.45
    215.2
    315.7
    415.5
    P22118.918.85
    218.8
    319
    418.7
    P3119.69.8
    29.8
    310
    49.9
    P43113.413.2
    213.2
    313
    413.2
    P45187.8
    27.5
    37.8
    47.9
    下载: 导出CSV

    表  2  荧光屏分辨力测试结果

    Table  2  Measurement results for resolution of fluorescent screen

    编号分辨力/(lp/mm)编号分辨力/(lp/mm)
    P20-192.2P20-292.4
    P22-194.8P22-294.4
    P31-194.6P31-294.4
    P43-195.8P43-296.2
    P45-194.4P45-294.6
    下载: 导出CSV

    表  3  像管分辨力测试结果

    Table  3  Measurement results for resolution of bare pipe of image intensifier

    编号分辨力/(lp/mm)编号分辨力/(lp/mm)
    P20-157P20-258
    P22-160P22-259
    P31-158P31-257
    P43-167P43-265
    P45-161P45-261
    下载: 导出CSV

    表  4  荧光粉光谱特性测试结果

    Table  4  Measurement results for spectral characteristics of phosphor

    编号发光
    亮度L
    色阶坐标主波长/nm峰值
    波长/nm
    半波宽/nm显色指数RaD10D50D90
    xy
    P2073.3110.34040.5928555.7539.185.923.21.382.454.25
    P2289.1910.29960.6192548.3534.875.915.81.362.323.92
    P3170.5650.28370.6062544.4530.174.719.71.332.54.47
    P43114.110.34620.5887556.6544.12.923.91.141.933.27
    P4553.5820.37740.6159560.7544.22.921.472.684.77
    下载: 导出CSV

    表  5  像增强器用荧光粉主要指标

    Table  5  Key indicators of phosphor used for image intensifier

    项目P20P22P31P43P45备注
    荧光屏发光效率/(lm/W)15.4518.859.813.27.8制成荧光屏后测试
    分辨力/(lp/mm)92 94 94 95 94 制成荧光屏后测试
    发光颜色黄绿黄绿(绿)黄绿(绿)黄绿白色
    发光亮度/(cd/m2 73.311 89.191 70.565114.11 53.582
    色阶坐标$\dfrac{x}{y} $ $\dfrac{0.340\;4}{0.592\;8} $ $\dfrac{0.299\;6}{0.619\;2} $ $\dfrac{0.283\;7}{0.606\;2} $ $\dfrac{0.346\;2}{0.588\;7} $ $\dfrac{0.377\;4}{0.615\;9} $
    主波长/nm555.7 548.3 544.4 556.6 560.7
    峰值波长/nm539.1 534.8 530.1 544.1 544.2
    半波宽/nm85.9 75.9 74.7 2.92.9
    显色指数Ra23.2 15.8 19.7 23.92
    荧光寿命/ms 0.62 0.66 0.57 0.60 1.34
    中心粒径/μm 2.45 2.322.5 1.93 2.68
    余辉/ms0.68 0.1 1.2 1.7《光电子成像器件原理》[25]
    像管分辨力/(lp/mm)≥57 ≥60 ≥57 ≥65 ≥61制成像管后测试
    下载: 导出CSV
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  • 收稿日期:  2022-09-04
  • 修回日期:  2022-10-12
  • 网络出版日期:  2022-11-07
  • 刊出日期:  2022-11-14

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