【作者】 丁勇；

【导师】 姚红兵；

【作者基本信息】 江苏大学 ， 光学工程， 2018， 硕士

【摘要】 随着汽车产业的智能化发展,汽车照明除了照明的基本功能性之外,也更加注重了与周围环境的互动性,即利用真正可变的光型图案建立更明确的以车灯照明的通信方式,向其他道路使用者显示车辆行驶的意图,从而达到驾驶者同其他道路使用者之间的交流互动。本文基于非成像光学理论,借助光学软件LucidShape和SPEOS对具有交互式功能的辅助投影倒车灯光学系统进行了大量的探索和研究,提供了一种未来汽车照明系统可能应用的光学系统。论文主要的研究内容包括:1.根据GB15235-2007汽车及挂车倒车灯配光要求,基于原有双侧倒车灯的3D结构造型对光学反射面进行重新设计,合理划分反射面各区域,分别调整各个区域反射面的扩散角度,使得各个区域反射面相互配合。保证倒车灯内侧45°可视角的发光强度满足法规要求最低值15 cd。利用CATIA对灯壳横条花纹进行设计,使其同反射面相互配合以提高光学系统的光线利用率并且和后组合灯的整体造型保持一致。最终模拟光型分布满足倒车灯配光法规要求和倒车灯的路照要求。2.对辅助投影倒车灯系统进行设计,其中包括光学相关的LED光源的选择、反射面,挡板及透镜的设计以及电子相关的PCB板和驱动电路的设计。最后,将所有的光学零件在SPEOS中进行模拟并对挡板的孔径的尺寸大小及光学透镜的各个参数进行优化,最终模拟结果满足预期光型分布要求。3.对样灯进行测试及法规验证,光型分布同设计光型保持一致,样灯发光强度和光通量都可以达到模拟结果的83%以上,满足倒车灯配光要求及路照要求。辅助投影倒车灯在路面投影出比较清晰的“箭头”符号,通过测量成像的平均照度值的比值为13.1:3.2:1,成像位置同预期设计位置基本保持一致,可以在汽车倒车的过程中,为其他道路使用者提供信号指示作用,可以有效地减小交通事故的发生,提升道路安全性,验证了设计方法的可行性。更多还原

【Abstract】 With the intelligent development of the automotive industry,people begin to pay more attention to the interaction with the surrounding environment in addition to the basic functionality of automobile lighting system,that is through the use of truly variable light patterns to establish a more distinct and lighting-based way of communication,shows the vehicles’ intentions to the passengers on-board.Based on the theory of non-imaging optics,the optical softwares of LucidShape and SPEOS are used to carry out a large number of explorations and researches on the auxiliary project reversing lamp optical system with interactive function,and provide a possible application method of the future automotive lighting system.The main research contents include as below:Firstly,according to the photometric requirements of regulation GB15235-2007,the reflector of reversing lamp was redesigned based on the 3D structure of original paired reversing lamp,the fundamental surfaces were divided legitimately and the surface profile data of sub-surface were optimized,which could fulfill the regulation of the photometric intensity 45 degrees inwards at least 15 cd.the horizontal stripes of the outer lens were redesigned with CATIA,to improve optical system light utilization and keep it consistent with the overall shape of the lamp.The final simulation result can meet the photometric intensity regulation and fulfill the requirments of the road scene illumination of reversing lamp.Secondly,the auxiliary projection reversing lamp system was designed,including the selection of optically-related LED light source,the design of the reflector,baffle and lens,and the electronically-related PCB board and driving circuit.Finally,all the parts were simulated and optimized in SPEOS so that the final results meet the requirements.Thirdly,the sample lamp was tested and carried out regulations validation,the sample lamp test result had achieved 83% of simulation value which consistent with the simulation result,and the light intensity of each point is above the minimum value required by the regulation and satisfies the reversing lamp road scene illumination requirements.The auxiliary projection reversing lamp projects a relatively clear “arrow” symbol on the road,The ratio of the average illuminance value measured of the imaging is 13.1:3.2:1.The imaging position is basically consistent with the expected design.it can provide signal indication for other road users during the reversing of the car,which can effectively reduce traffic and improve the road safety,the feasibility of the design method is verified in practice.更多还原