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Development of a Numerical Model for the Luminous Intensity Distribution of a Planar Prism LED Luminaire for Applying an Optimization Algorithm

机译:应用优化算法开发平面棱镜LED照明器发光强度分布数值模型

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摘要

Abstract—LED lighting is often presented as the lighting technology ofnthe future. Yet there are differences in the luminous intensityndistributions between luminaires that employ conventional light sourcesnand those that employ LEDs. The optical engineer faces a newnchallenge of designing for a spatially extended and nonuniform lightnsource. Consequently, a new approach is needed for the optical designnof planar LED luminaires. Luminaire optical design is typicallynperformed using a combination of ray-tracing and trial-and-errornexperimentation with the goal of obtaining a target luminous intensityndistribution. The number of iterations can be reduced by utilizingnoptimization algorithms. This study aimed to develop a numericalnmodel for luminous intensity distribution of planar prism LEDnluminaires and apply the optimization algorithm for prism angle design.nA calculation process for the prism optical design of a planar prism LEDnluminaire was developed. To assess the accuracy of the numericalnmodel, a comparison was performed between results from thennumerical model and Photopia 2.0. This study also illustrates a methodnof the application of unit prism angle zones for the control of luminousnintensity distributions. As a next step, the numerical model could benextended to optimize prism angle for a target luminous intensityndistribution.
机译:摘要—LED照明经常被提出作为未来的照明技术。然而,在采用传统光源的照明器与采用LED的照明器之间,发光强度分布存在差异。光学工程师面临着在空间上扩展且不均匀的光源设计的新挑战。因此,对于平面LED照明器的光学设计需要一种新的方法。灯具的光学设计通常是结合光线追踪和反复试验来执行的,目的是获得目标发光强度分布。可以通过使用优化算法来减少迭代次数。本研究旨在建立平面棱镜LED照明器发光强度分布的数值模型,并将优化算法应用于棱镜角设计。开发了平面棱镜LED照明器棱镜光学设计的计算过程。为了评估数值模型的准确性,在数值模型和Photopia 2.0的结果之间进行了比较。这项研究还说明了应用单位棱镜角区域来控制发光强度分布的方法。下一步,可以扩展数值模型以针对目标发光强度n分布优化棱镜角度。

著录项

  • 来源
    《LEUKOS》 |2012年第1期|57-72|共16页
  • 作者单位

    1Department of Architectural Engineering Sejong University Kunja-Dong Kwangjin-GuSeoul Korea 143–747*Corresponding author: An-Seop Choi E-mail: aschoi@sejong.ac.kr;

    1Department of Architectural Engineering Sejong University Kunja-Dong Kwangjin-GuSeoul Korea 143–747*Corresponding author: An-Seop Choi E-mail: aschoi@sejong.ac.kr;

    1Department of Architectural Engineering Sejong University Kunja-Dong Kwangjin-GuSeoul Korea 143–747*Corresponding author: An-Seop Choi E-mail: aschoi@sejong.ac.kr;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Optical design, planer prism LED luminaire, refractor,;

    机译:光学设计;平面棱镜LED照明器;折射镜;

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