中国光学, 2012, 5 (5): 520, 网络出版: 2012-10-12   

组合式发光二极管路灯反射器的设计

Design of combined reflectors used in LED street lamps
作者单位
浙江师范大学 信息光学研究所,浙江 金华 321004
摘要
设计了一组合式路灯反射器,以使发光二极管(LED)路灯在道路照明时产生矩形光斑和均匀照度。在非成像光学基础上,利用复合抛物面的高性能集光作用和机械设计软件的强大作图功能,设计了一款分段组合复合抛物面反射器(CPC)。基于“边缘光线原理”和”裁剪法”,此款反射器能将朗伯型发光的LED光束整形为近似矩形分布,出光效率达96%以上。理论模拟证明:在高度为10 m,范围为10 m×30 m内利用此反射器进行二次配光的LED路灯的照度均匀度达05以上。该反射式LED路灯光束整形器结构简单,光学效率高、成本低廉,模拟结果完全达到了目前我国国家道路照明规范要求。
Abstract
A combined reflector for Light Emitting Diode(LED) street lamps is designed to produce a rectangular light spot and uniform lighting in the road, as well as having a simple structure and high light efficiency. Based on the principles of non-imaging optics and mechanical design software, a segmented compound parabolic reflector was designed. The reflecting beams of light from the reflector have an approximately rectangular distribution while the light efficiency can reach 96%. The analysis and simulation results show that the uniformity of illuminance can reach 05 over an area of 10 m×30 m when the LED lamp is installed at a height of 10 m. The reflector design when applied to shaping the LED beam into the rectangle shape has a high optical efficiency and low costs. The simulation results show that it can satisfy the current requirement for road lighting.

赵亚辉, 范长江. 组合式发光二极管路灯反射器的设计[J]. 中国光学, 2012, 5(5): 520. ZHAO Ya-hui, FAN Chang-jiang. Design of combined reflectors used in LED street lamps[J]. Chinese Optics, 2012, 5(5): 520.

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