基于DLP的车用彩色投影光学设计  

Design of Color Projection for Vehicle Based on DLP

作　　者：刘岳飞 宋健 熊衍建 LIU Yuefei;SONG Jian;XIONG Yanjian(Changzhou Xingyu Automotive Lighting Systems Co.,Ltd.,Changzhou 213022,China)

机构地区：[1]常州星宇车灯股份有限公司,江苏常州213022

出　　处：《中国照明电器》2024年第2期16-21,37,共7页China Light & Lighting

摘　　要：随着车灯智能化和像素化的演进,越来越多的投影成像技术被应用在车灯领域,投影技术的应用使得车灯照明更加精细、可控,带来更好的人车交互和照明体验。传统的车用信号投影技术通常采用菲林或者MLA的方式实现,投影的图像颜色单一,且不支持动态编辑。数字光处理技术(DLP),先把影像信号经过数字处理,然后再把光投影出来。基于DLP技术的彩色微投影模组采用三色LED光源,通过柯勒照明系统或临界照明系统可以实现高分辨率彩色投影效果,模组光学效率能够达到24%。最后对比分析了两种照明方式的优缺点,为DLP彩色微投光学系统的设计提供了参考意义。With the evolution of headlamps in forms of intelligence and pixellation,more and more projection based technologies are used in the field of headlights.The application of projection technology makes headlights more precise and controllable,bringing better human-vehicle interaction and lighting experience.Traditional automotive signal lamps are usually made by film or MLA projectors,and the projected images with those technologies normally have a fixed single color and uneditable,whereas for digital light processing technology(DLP),the image signal is digitally processed first,and then the light is projected,making it a good solution for editable colorful pattern projection.The color micro-projection module based on DLP technology uses three monochromatic LED light sources to achieve high-resolution color projection effect through the Kohler illumination or Critical illumination system,and the optical efficiency of the module can reach 24%.At last,the advantages and disadvantages of the two lighting methods are analyzed,which provides a reference for the design of the DLP color micro-projection optical system.

关 键 词：DLP 动态投影 临界照明 柯勒照明 彩色微投 

分 类 号：TB21[一般工业技术—工程设计测绘]