王彦, 王克逸, 赵帅, 沈远, 蔡柏林, 张磊. 基于锥形透镜的光线入射角度测量系统设计与研究[J]. 应用光学, 2020, 41(6): 1181-1189. DOI: 10.5768/JAO202041.0602001
引用本文: 王彦, 王克逸, 赵帅, 沈远, 蔡柏林, 张磊. 基于锥形透镜的光线入射角度测量系统设计与研究[J]. 应用光学, 2020, 41(6): 1181-1189. DOI: 10.5768/JAO202041.0602001
WANG Yan, WANG Keyi, ZHAO Shuai, SHEN Yuan, CAI Bolin, ZHANG Lei. Design and research of light incident angle measuring system based on conical lens[J]. Journal of Applied Optics, 2020, 41(6): 1181-1189. DOI: 10.5768/JAO202041.0602001
Citation: WANG Yan, WANG Keyi, ZHAO Shuai, SHEN Yuan, CAI Bolin, ZHANG Lei. Design and research of light incident angle measuring system based on conical lens[J]. Journal of Applied Optics, 2020, 41(6): 1181-1189. DOI: 10.5768/JAO202041.0602001

基于锥形透镜的光线入射角度测量系统设计与研究

Design and research of light incident angle measuring system based on conical lens

  • 摘要: 为测量光线入射角度,设计了一种基于锥形透镜的新型光线入射角度测量系统。利用光阑、锥形透镜和图像接收装置,获取待测光线通过光阑射入锥形透镜后经过多次的折射和反射,在图像接收装置上得到的复杂光斑图像,通过图像处理得到光斑图像特征信息,进而求解光线入射角度。采用锥形透镜的测量方案,角度测量范围可达80°,精度最高可达 (1×10−4)″。该方案结构简单、体积小且不需要进行繁琐的安装调试。与现有的单光点测量等方法相比,该方案中锥形透镜具有角度放大作用,可大幅度提高测量精度且具有大视场;图像传感器像素分辨率对测量结果影响较小,系统光通量大,容易获得较高的信噪比。

     

    Abstract: In order to measure the incident angle of light, a new light incident angle measuring system based on conical lens was designed. Using the diaphragm, the conical lens and image receiving device could obtain a complex light spot image. These images were formed by multiple refractions and reflections after the light entered the conical lens through the aperture. The image feature information of the light spot was obtained through image processing, and then the incident angle of light was solved. With this measurement scheme, the angle measurement range can reach to 80°, and the accuracy can reach up to (1×10−4)″. At the same time, the scheme has a simple structure, small size and does not require cumbersome installation and debugging. Compared with the existing single-spot measurement methods, the conical lens in this solution has an angle magnification effect, which can greatly improve the measurement accuracy and has a large field of view, and the pixel resolution of the image sensor has little effect on the measurement results, and the system luminous flux is large. So it is easy to obtain a higher signal-to-noise ratio.

     

/

返回文章
返回