Design of freeform LED lens with large light deflection angle for road lighting application

doi:10.1117/12.999767

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 集成光电技术研究中心

	Design of freeform LED lens with large light deflection angle for road lighting application
	Yin, Shaoyun1 ; Wang, Zhongxun 1,2; Sun, Xiuhui1 ; Xia, Liangping 1,2; Pang, Hui 2; Deng, Qiling 2; Dua, Chunlei 1
	2012
会议日期	November 5, 2012 - November 6, 2012
会议地点	Beijing, China
DOI	10.1117/12.999767
通讯作者	Dua, C. (cldu@cigit.ac.cn)
英文摘要	The deflection of light of a single optical surface is limited by the Fresnel reflection loss and it is usually not enough to meet the requirements in large road width, tilt lighting LED lens design. This paper presents a method which greatly increases the light deflection angle of LED lens by combining a tilting aspherical surface with a freeform surface. Using this design method, a road lighting LED lens for length L= 30m, road width W=12m and tilt angle θ= 15° is designed and manufactured. The experimental results show that the overall road luminance uniformity is as high as 0.7. This design method greatly expand the light distributing capacity of the free-form surface LED lens, and it can be widely used in the design of LED road lighting lens and other illumination applications where large light deflection angle is needed. © 2012 SPIE.
会议录	LED and Display Technologies II
语种	英语
电子版国际标准刊号	1996756X
ISSN号	0277786X
内容类型	会议论文
源URL	[http://119.78.100.138/handle/2HOD01W0/4763]
专题	集成光电技术研究中心
作者单位	1.CAS, Chongqing Institute of Green and Intelligent Technology, Chongqing, China; 2.CAS, Institute of Optics and Electronics, Chengdu, Sichuan Province, China
推荐引用方式 GB/T 7714	Yin, Shaoyun,Wang, Zhongxun,Sun, Xiuhui,et al. Design of freeform LED lens with large light deflection angle for road lighting application[C]. 见:. Beijing, China. November 5, 2012 - November 6, 2012.