液晶与显示2017，Vol.32Issue(12)：961-967,7.DOI:10.3788/YJYXS20173212.0961
LED阵列发光特性仿真和对比分析
Simulation and comparative analysis of LED arrays in light-emitting characteristics
摘要
Abstract
Traditional halogen light sources are being gradually replaced by LED for airfield navigation lights.The runway guard lights are important navigation lights to prevent the aircraft from invading the runway.The study of the ring and square LED array center illumination and luminous angle is pro posed aiming at its requirements of the luminous characteristics.Firstly,the calculation method of center illumination and luminous angle of single LED light source at target plane is given.Secondly,the above two arrays are constructed in the premise of satisfying the uniform arrangement.The center illumination,the luminous angle and the spot radius of two arrays at different target distances are researched by Matlab,and the least square method is used to simulate the power function curve.Finally,the tracing simulation is performed through the software TracePro.The results show that with the increase of the target distance,the center illumination of the two arrays gradually decreases,the spot radius and the luminous angle of both gradually increase.When the target distance is less than 8 m,the luminous characteristics of the two arrays are different.The center illumination of ring array is slightly larger,and the luminous angle of square array is slightly larger.The luminous characteristics of the two arrays are gradually tending to consistency with the increase of the target distance.Taking the 4C class airport as an example,it is calculated that the above two arrays are applicable to A-type guard lights and square array is suitable for B-type guard lights.关键词
光学设计/LED阵列/中心照度/光斑半径/发光角度Key words
optical design/LED array/center illumination/spot radius/luminous angle分类
信息技术与安全科学引用本文复制引用
侯启真,薛荣荣,王洁宁..LED阵列发光特性仿真和对比分析[J].液晶与显示,2017,32(12):961-967,7.基金项目
国家重点研发计划(No.2015YFB0502401)National Key Research and Development Plan(No.2015YFB0502401) （No.2015YFB0502401）
