| COB光源的窄光束均匀照明设计 |
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| 引用本文： | 黄从高, 胡淼, 张春洋, 等. COB光源的窄光束均匀照明设计[J]. 强激光与粒子束, 2021, 33: 029002. doi: 10.11884/HPLPB202133.200224 |
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| 作者姓名： | 黄从高 胡淼 张春洋 许蒙蒙 李齐良 毕美华 周雪芳 |
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| 作者单位： | 1.杭州电子科技大学 通信工程学院，杭州 310018;;2.防化研究院，北京 102205 |
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| 基金项目： | 国家自然科学基金项目（61705055）；浙江省重点研发计划项目（2019C01G1121168） |
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| 摘 要： | 为了解决高功率白光LED光源输出高均匀度窄光束的问题，设计了一种由复合抛物面反射器、菲涅尔透镜和非球面透镜组成的照明系统。设计中以板上芯片型（COB）集成光源的配光曲线为依据构建光源仿真模型，由复合抛物面反射器实现大角度光线初次会聚之后，再由菲涅尔透镜控制溢散光，最后利用非球面透镜进行准直配光。采用TracePro进行蒙特卡洛光线追迹，根据仿真得到的系统性能指标，并研制出实物装置进行实验测试。最终测试结果表明：窄光束均匀照明系统可以输出±7.9°的光束，并且在距离系统出光面0.7 m左右的区域形成均匀度超过96%的圆形光斑，整体光效达到60%。
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| 关 键 词： | 窄光束 COB集成光源 均匀照明 非球面透镜 复合抛物面反射器 |
| 收稿时间： | 2020-07-31 |
| 修稿时间： | 2021-01-04 |
Narrow beam uniform illumination design of COB light source |
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| Huang Conggao, Hu Miao, Zhang Chunyang, et al. Narrow beam uniform illumination design of COB light source[J]. High Power Laser and Particle Beams, 2021, 33: 029002. doi: 10.11884/HPLPB202133.200224 |
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| Authors: | Huang Conggao Hu Miao Zhang Chunyang Xu Mengmeng Li Qiliang Bi Meihua Zhou Xuefang |
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| Affiliation: | 1. College of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;;2. Research Institute of Chemical Defense, Beijing 102205, China |
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| Abstract: | To achieve high-power white LED system with high uniformity and narrow beam, an optical system composed of Chips On Board (COB), compound parabolic reflector, Fresnel lens and aspheric lens is designed. In the design, based on the COB light distribution curve, the light source simulation model of the optical system is built firstly. Then the light source beam is converged by the compound parabolic reflector, and the spill light is controlled by the Fresnel lens. finally, an aspheric lens is used for collimating light source beam. The TracePro software is used for ray tracing simulation. According to the simulated results, an experimental setup is developed for experimental testing. The testing results show that the divergence angle of the optical system is ±7.9°, and the circular uniformity is 96% with the distance of 0.7 m, and the overall light efficiency reaches 60%. |
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| Keywords: | narrow beam COB integrated light source uniform illumination aspheric lens compound parabolic reflector |
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