摘要
提出了一体化LED汽车前照灯光学系统设计方法,并设计出同时用于前照车灯远、近光配光的非对称双自由曲面透镜。采用变焦距椭球面反射器、非对称双自由曲面透镜对光源发出的光线进行配光,可使近光的照明宽度达到16 m。仿真结果表明,该前照灯的远光和近光各点所要求的照度值和光型均满足国标,并且光斑的色温稳定。所设计的光学系统体积为传统前照灯光学系统的一半,符合紧凑化车灯设计要求。
An integrated optical system design method for LED automobile headlamp is prsent,and an asymmetric dual freeform surface lens is designed for low and high beam.The illumination width of near light can reach 16 meters by using variable focal length ellipsoid reflector and asymmetric double free surface lens.The simulation results show that the illumination value and light type required by the high and low light points of the headlamp meet the national standard,and the color temperature of the spot is stable.The volume of the designed optical system is half of that of the traditional headlamp,which conforms to the requirements of the compact headlamp design.
作者
张辉
刘登飞
魏滢湾
王洪
ZHANG Hui;LIU Deng-fei;WEI Ying-wan;WANG Hong(Engineering Research Center for Optoelectronics of Guangdong Province,School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510640,China;Engineering Research Center for Wide Bandgap Semiconductor Chips and Application of Guangdong Province,Zhongshan Institute of Modem Industrial Technology,South China University of Technology,Zhongshan 528437,China)
出处
《光学与光电技术》
2021年第6期64-71,共8页
Optics & Optoelectronic Technology
基金
广东省科技计划项目(2016B010123004、2017B010112003、2020B010171001)
广州市科技计划项目(201604046021、201905010001)
中山市科技发展专项基金项目(2019AG014、2019AG042、2020AG023)资助。
关键词
一体化汽车前照灯
非成像光学
非对称双自由曲面透镜
照度值
色温
integrated headlamp
non-imaging optics
asymmetric double freeform surface lens
illuminance value
colour temperature
