摘要：随着LED产业的蓬勃发展，车载LED灯已经成为行业的新增长点。汽车迎宾灯是车载LED灯的一种，自2010年出现以来，短短不到十年的时间里，它就发生了翻天覆地的变化，各式各样的车载迎宾灯相继出现。本论文的设计是以2015年出现的宝马7系“天使之翼”迎宾灯为基础，了解其毯型光带的形成原理，并对迎宾灯的光学结构部分进行三维建模，用TracePro光学软件进行模拟仿真分析。“天使之翼”迎宾灯的光学部件是由三部分组成，分别是厚凸透镜、透镜阵列、以及不规则形状的平面镜，光源是1w的LED光源。光线的模拟仿真结果显示，厚透镜的作用是将光源的大出射角进行汇聚，尽量接近平行光照射在透镜阵列上。透镜阵列像汉堡一样，入光面和出光面对称分布有微结构，中间某一位置含有毯型光带的菲林片，只要有一个微结构透光，都会在接收面形成完整的9条等间距等亮度的光毯。可见微透镜结构除了匀光作用外，还有幻灯投影的作用，菲林片上的图形就像幻灯片一样，被投射在地面。不规则平面镜紧挨着微透镜的出光面，起到密封和保护微透镜的作用。迎宾灯的发展正处于关键阶段，车载迎宾灯方向大有可为。78838

毕业论文关键词： 迎宾灯；毯型光带；三维建模；光学模拟；菲林片

The structure and optical design of the car welcome lamp

Abstract: With the vigorous development of LED industry, automotive LED lights have become the industry's new growth point。 Car welcome light is a car LED lights, since the emergence of 2010, just less than ten years time, it has undergone enormous changes, all kinds of car welcome lights have emerged。 The design of this paper is based on the BMW 7 Series "Angel Wings" welcome lamp which appeared in 2015 to understand the formation principle of its blanket type light band and the 3D modeling of the optical structure part of the welcome lamp。 Optical software for simulation analysis。 "Wing of the angel" The optical components of the welcome lamp are composed of three parts, namely, the convex lens, the lens array, and the irregular shape of the plane mirror, the light source is 1w LED light source。 The simulation results show that the effect of the thick lens is to converge the large exit angle of the light source, as close as possible to the parallel light irradiation on the lens array。 Lens array like a hamburger, into the smooth and smooth surface symmetrical distribution of microstructure, the middle of a location containing blanket band of film, as long as there is a microstructure of light, will form a complete 9 in the receiving surface Spacing and other brightness of the blanket。 Visible micro-lens structure in addition to the role of uniform light, there are slide projection effect, the film on the film like a slide, was projected on the ground。 Irregular plane mirror next to the microlens of the smooth, play a role in sealing and protecting the microlens。 Welcome lamp development is at a critical stage, the direction of the car welcome lamp promising。

Keywords: Welcome light; Blanket belt; 3D modeling; optical simulation; film

 目录

摘要 i

Abstract i

1 绪论 1

1。1 引言 1

1。2 本课题的国内外发展现状 1

1。3 本课题的目的和意义 2

1。4