玻璃微珠原向反射屏发散特性研究
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摘要
为了测试玻璃微珠原向反射屏发散特性,建立数学模型得到发散角计算表达式,并使用ZEMAX进行光学仿真,并搭建系统测试。使用互补金属氧化物半导体(CMOS)相机拍摄点激光照射在40 cm处激光光斑与经原向反射屏反射后20 cm处发散光斑尺寸,处理两个光斑图像并根据数学模型计算得到原向反射屏的发散角,其发散角为0. 598°。实验结果证明:该方法合理有效,对原向反射屏的特性研究具有一定的实用价值。
In order to test the divergence characteristics of glass bead retroreflective screen,a mathematical model is built and simulated using ZEMAX,test system is set up. The system uses a complementary metal oxide semiconductor( CMOS) high-speed camera to shoot the laser spot at 40 cm and the divergence spot size at 20 cm after being reflected by the retroreflector. The two spot images are processed and the divergence angle of the retroreflector is calculated according to the mathematical model,the divergence angle is 0. 598°. The experimental result proves that the method is reasonable and effective,and has certain practical value for the study on the characteristics of the retroreflective screen.
In order to test the divergence characteristics of glass bead retroreflective screen,a mathematical model is built and simulated using ZEMAX,test system is set up. The system uses a complementary metal oxide semiconductor( CMOS) high-speed camera to shoot the laser spot at 40 cm and the divergence spot size at 20 cm after being reflected by the retroreflector. The two spot images are processed and the divergence angle of the retroreflector is calculated according to the mathematical model,the divergence angle is 0. 598°. The experimental result proves that the method is reasonable and effective,and has certain practical value for the study on the characteristics of the retroreflective screen.
引文
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[3]张爱武,胡少兴,冯绪勇,等.三坐标激光非接触外形尺寸快速测量系统与误差控制方法[J].中国激光,2009,36(s2):129-133.
[4]薄健康,李大海,郭东华,等.高折射玻璃微珠粒径与折射率关系的研究[J].光学与光电技术,2011,9(6):45-48.
[5]吕虎.高折射率玻璃微珠特性研究及折射率测量系统的研制[D].成都:四川大学,2012:22-35.
[6]王长璟,杨秋翔,刘晴晴. CMOS传感器在可编码三维测量中的应用[J].传感器与微系统,2015,34(8):156-157,160.
[7] Shen J Q,Wang H R. Calculation of Debye series expansion oflight scattering[J]. Appl Opt,2010,49(13):2422-2427.
[8]黄维实,蒋秀明,陈英礼,等.玻璃微珠列阵准位相共轭性质的演示[J].中国激光,1983,10(3):191-192.