Design of a reflective LED automotive headlamp lighting system based on a free-form surface

被引：10

作者：

Yang, Yashuai ^{[1
]}

Qiu, Dangshe ^{[2
]}

Zeng, Yi ^{[1
]}

Li, Ruolan ^{[1
]}

Duan, Wenju ^{[1
]}

Fan, Rundong ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Optoelect Engn, Changchun 130022, Jilin, Peoples R China

[2] Hunan Huanan Optoelect Grp Co Ltd, Changde 415000, Hunan, Peoples R China

来源：

APPLIED OPTICS | 2021年 / 60卷 / 28期

基金：

中国国家自然科学基金;

关键词：

OPTICAL DESIGN; MODULAR DESIGN; LENS DESIGN; ILLUMINATION; UNIFORM; VEHICLE;

D O I：

10.1364/AO.431320

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a design scheme of an automobile low-beam light illumination system with a reflector free-form surface is presented. Per the energy grid mapping theory and edge ray theory, an oblique triangular energy mapping scheme was proposed, and the free-form reflector was obtained by geometric iterative calculation. The Monte Carlo ray tracing method was used to simulate the system. The simulation results met the regulatory requirements of ECE R112, and the light efficiency could reach 81%. The length, width, and height of the reflector were 55.61 mm x 22.02 mm x 23.70 mm. The reflector achieves a special light type through precise light distribution, does not need other shielding objects, and has the advantage of s mall size. (C) 2021 Optical Society of America

引用

页码：8910 / 8914

页数：5

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