Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Optics》 2012-05
Add to Favorite Get Latest Update

Design of combined reflectors used in LED street lamps

ZHAO Ya-hui,FAN Chang-jiang (Institute of Information Optics,Zhejiang Normal University,Jinhua 321004,China)  
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.
【Fund】: 浙江省自然科学基金资助项目(No.Y1100524);; 浙江师范大学创新团队和浙江师范大学博士启动基金资助项目(No.zc304009158)
【CateGory Index】: TN312.8
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved