Illumination Uniformity of Large LED Rectangular Array

LIU Qi-neng; LIU Qin

doi:10.3788/fgxb20183905.0699

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Illumination Uniformity of Large LED Rectangular Array

更新时间：2020-08-12

- Illumination Uniformity of Large LED Rectangular Array
- Chinese Journal of Luminescence Vol. 39, Issue 5, Pages: 699-705(2018)
- 作者机构：
  
  1. 重庆工商大学重庆市检测控制集成系统工程实验室, 重庆 400067
  2. 重庆工商大学计算机科学与信息工程学院, 重庆 400067
  3. 重庆工商大学设计艺术学院, 重庆 400067
- 作者简介：
- 基金信息：
  
  Supported by Science and Technology Project of Chongqing Education Committee (KJ1500
- DOI：10.3788/fgxb20183905.0699
  CLC： O435;O432.2
- Received：15 August 2017，
  
  Revised：15 November 2017，
  
  Published Online：05 January 2018，
  
  Published：05 May 2018
- 稿件说明：
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刘启能, 刘沁,. 大型LED矩形阵列光斑照度的均匀性研究[J]. 发光学报, 2018,39(5): 699-705

LIU Qi-neng, LIU Qin,. Illumination Uniformity of Large LED Rectangular Array[J]. Chinese Journal of Luminescence, 2018,39(5): 699-705
刘启能, 刘沁,. 大型LED矩形阵列光斑照度的均匀性研究[J]. 发光学报, 2018,39(5): 699-705 DOI： 10.3788/fgxb20183905.0699.

LIU Qi-neng, LIU Qin,. Illumination Uniformity of Large LED Rectangular Array[J]. Chinese Journal of Luminescence, 2018,39(5): 699-705 DOI： 10.3788/fgxb20183905.0699.

摘要

应用LED芯片的照度公式以及大型LED矩形阵列照度分布的对称性，建立了研究大型LED矩形阵列照度均匀度的物理模型，推导出计算大型LED矩形阵列照度均匀度的公式。利用该公式研究了大型LED矩形阵列照度均匀度随目标距离、长宽比以及

值的变化规律。得出：照度均匀度随目标距离的增加而非线性地减小；照度均匀度随长宽比的增加而非线性地增大；照度均匀度随

值的增加而近似成线性地增大。这些规律为提高大型LED矩形阵列的照度均匀性提供了理论依据，也为大型LED矩形阵列的照度均匀性设计提供了研究方向和计算方法。弥补了之前研究LED阵列照度均匀性方法上的不足。

Abstract

Using the illumination formula of single LED wick and the symmetry of large LED rectangular array illumination distribution

a physical model for the illumination uniformity of large LED rectangular arrays was established. The illumination uniformity of large LED rectangular array was derived. This formula is used to study the illumination uniformity of large LED rectangular arrays with the target distance and the ratio of length to width and the

values. The illumination uniformity doesn't linearly decrease with the increasing of the target distance

doesn't linearly increase with the increasing of the ratio of length to width

and linearly increases with the increasing of

value. These rules provide theoretical basis for improving the uniformity of large LED rectangular arrays

the research direction and calculation method are provided for the illumination uniformity design of large LED rectangular array. It makes up for the lack of the uniformity of LED array illumination.

关键词

Keywords

references

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