基于背光源的新型主动发光交通标志研究

摘要

通过系统分析现有主动发光标志的结构、光学模式以及性能,探寻现有主动发光技术难以应用于大型指路标志的原因.将LCD的背光源技术运用到交通标志中,研究一种基于背光源的新型主动发光交通标志,详细介绍了新型标志的结构、光学模式、光源设计、优缺点,针对光源设计给出了理论计算及计算机模拟结果,并在实际应用中得以验证.新型标志的研发实现了主动发光交通标志由点发光模式升级到面发光模式,将主动发光交通标志的应用推广到大型指路标志上.%Based on the systematic analysis of the structure,optical mode and performance of existing active luminous signs,the reasons that the active luminous emitting technology is difficultly applied in large guide signs was explored in this paper.The LCD back light technology was creatively applied to the traffic signs and a new type active luminous traffic signs was developed based on backlight.The structure,optical mode,light design,advantages and disadvantages of the new traffic signs were introduced in detail.The theoretical calculation and computer simulation results were given for the light source design,and the results were verified in practical applications.The research of novel traffic signs makes the light-emitting mode of active luminous traffic signs upgrade from point emitting to surface emitting,and makes the large guide sign active luminous.