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LED路灯透镜的二次光学设计介绍

Optical Design of a Freeform Lens for LED Street Light

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【作者】 蒋金波杜雪李荣彬

【Author】 Jiang Jinbo Sandy To W.B.Lee(Advanced Optics Manufacturing Centre,Department of Industry and Systems Engineering,The Hong Kong Polytechnic University)

【机构】 香港理工大学工业及系统工程学系先进光学制造中心

【摘要】 LED的二次光学元件设计对LED路灯的配光及光学输出效率至关重要。良好的道路照明要求LED路灯的配光为长方形的光型,路灯发出的所有光刚刚可以覆盖住马路,而马路之外的光污染几乎为零。非对称自由曲面二次光学元件的采用可以使LED路灯的长方形配光直接在单个LED模组上实现。整体路灯只需要将这些LED模组阵列按照相同方向排列即可,从而可以简化路灯机构、散热及控制电源的设计。本文介绍了LED路灯的二次光学设计,及一种用于LED路灯的自由曲面二次光学透镜的设计方法。

【Abstract】 The secondary optics design is a cratical issue for the output efficiency and light distribution pattern of the LED street light.A good roadway illumination requires the LED street light to have a rectangular light distribution pattern just cover the roadway and without any light pollution out of the road.The adoption of the unsymmetrical freeform optics with a rectangular light distribution on X and Y is a necessary which makes the LED street light become very simple and highly efficient.The whole LED street light can be made up if only mounts these LED modules on a PCB plate.The mechanism,thermal management,and the power control electronics of the LED street light becomes very simple.In this paper,the optical design of the LED street light and the calculation methodology of a freeform optics for the street light is put forward.

  • 【文献出处】 照明工程学报 ,China Illuminating Engineering Journal , 编辑部邮箱 ,2008年04期
  • 【分类号】TM923.5
  • 【被引频次】83
  • 【下载频次】2006
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