| LED照明的光学器件设计与仿真 |
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| 引用本文： | 曾丹,彭冬生,蒋月.LED照明的光学器件设计与仿真[J].红外与激光工程,2016,45(12):1220001-1220001(5). |
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| 作者姓名： | 曾丹 彭冬生 蒋月 |
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| 作者单位： | 1.深圳大学 光电子器件与系统(教育部、广东省)重点实验室,广东 深圳 518060 |
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| 基金项目： | 国家自然科学基金（60806017，61136001）;深圳市科技计划项目（JCYJ20140418095735627） |
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| 摘 要： | 大功率LED集成光源在实际照明工程应用很多，但是集成光源的照明效果不是很理想。为了解决大功率LED集成光源难以直接应用于照明的问题，根据非成像光学理论，设定合适的初始参数，利用能量守恒建立LED光源与目标照明面之间的映射，设计了筒灯反射器和透镜。并用Tracepro软件对这两类光学器件进行模拟仿真，均得到了良好的均匀圆形照明光斑。仿真结果表明，设计出的反射器和透镜，随着发光光源面积增大，照度均匀性都降低，当光源尺寸均设置为1 mm1 mm时，照明面上照度均匀性都达到95%以上，当光源尺寸增大10 mm10 mm时，照明面的照度均匀性下降到85%，符合对均匀性很高的室内照明设计标准。
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| 关 键 词： | LED 非成像光学 筒灯反射器 透镜 照度均匀性 |
| 收稿时间： | 2016-04-12 |
Optical devices design and simulation of LED illumination |
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| Affiliation: | 1.Key Lab of Optoeletronic Devices and Systems of Ministry of Education and Guangdong Province,Shenzhen University,Shenzhen 518060,China |
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| Abstract: | Itegrated high-power LED light source have been applied in many practical lighting engineering, but the illumination of the integrated light source is not very satisfactory. In order to solve the problem that integrated high-power LED light source cannot be applied directly in the field of illumination, a downlight reflector and a lens was designed by using the source-target map based on the energy conservation law in non-imaging optics. These two types of optical devices were simulated in Tracepro software, which obtained a good uniform round lighting spot. The simulation results show that the illumination uniformity is reduced with light emitting area increase. The illumination uniformity of the round lighting surface is above 95% when the source size is 1 mm1 mm. The illumination uniformity is decreased to 85% when the source size is increased to 10 mm10 mm. This research is conformed with the higher uniformity standards of indoor lighting design. |
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