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Illumination uniformity optimization of position-sensitive detector sensing optical system by circular and annular obscurations

机译:基于圆形和环形遮挡的位置感应探测器传感光学系统的照明均匀度优化

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摘要

In order to increase the illumination uniformity of the position-sensitive detector (PSD) in a sensing optical system, an optimization method is introduced in this paper. The ratio of the oblique ray section to the paraxial ray section is adjusted by circular and annular obscurations with different parameters; thus, the relative illumination on the image plane can be optimized. In our case, the size and position of the circular and annular obscurations are optimization variables. The result shows illumination uniformity on a PSD is enhanced from the original 12%-69.7%, and the precision is greatly improved. The method in this paper is proved to be effective and low cost and to have potential in many other applications.
机译:为了提高传感光学系统中位置敏感检测器(PSD)的照度均匀度,提出了一种优化方法。斜射线截面与近轴射线截面的比率通过具有不同参数的圆形和环形暗度来调整;因此,可以优化像面上的相对照明。在我们的案例中,圆形和环形遮挡的大小和位置是优化变量。结果表明,PSD上的照明均匀性从最初的12%-69.7%提高了,并且精度大大提高。本文中的方法被证明是有效且低成本的,并且在许多其他应用中具有潜力。

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