Design method of high-efficient LED headlamp lens

被引：106
|
作者：
Chen, Fei [1 ]
Wang, Kai [1 ]
Qin, Zong [2 ]
Wu, Dan [1 ]
Luo, Xiaobing [3 ]
Liu, Sheng [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Optoelect Sci & Engn, Div MOEMS, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Inst Microsyst, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 20期
关键词：
D O I：
10.1364/OE.18.020926
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Low optical efficiency of light-emitting diode (LED) based headlamp is one of the most important issues to obstruct applications of LEDs in headlamp. An effective high-efficient LED headlamp freeform lens design method is introduced in this paper. A low-beam lens and a high-beam lens for LED headlamp are designed according to this method. Monte Carlo ray tracing simulation results demonstrate that the LED headlamp with these two lenses can fully comply with the ECE regulation without any other lens or reflector. Moreover, optical efficiencies of both these two lenses are more than 88% in theory. (C) 2010 Optical Society of America
引用
收藏
页码：20926 / 20938
页数：13
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