Study and optimization of lens shape affecting light patterns of light-emitting diode (LED) street lighting

被引：7
作者：
Ying, Jocelynn Kee Xiao [1 ,2 ]
Lim, Way Foong [1 ]
机构：
[1] Univ Sains Malaysia, Inst Nano Optoelect Res & Technol INOR, George Town 11800, Malaysia
[2] Itramas Mfg Sdn, Bhd 542A-542B,Mukim 1,Lorong Perusahaan Baru 2, Pulau 13600, Pinang, Malaysia
来源：
OPTIK | 2022年 / 260卷
关键词：
Lens; Shape; Light emitting surface; Street light; DIALux Evo; ENERGY EFFICIENCY; OPTICAL-SYSTEM; DESIGN; ILLUMINATION; LUMINAIRES; LUMINANCE;
D O I：
10.1016/j.ijleo.2022.169083
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The aim of this study was to evaluate the effect of lens shape towards the light performance from light-emitting diode (LED) based street light. The other consideration taken into account was the effect of different light-emitting surface (LES) shapes on the light distribution. Three sets of experiments were carried out to figure out the shape of lens as well as the shape of LES suitable to be used in the street light application. Optical characterization was carried out using the Goniophotometer (GO-2000) and Integrating Sphere (PCE-200A). DIALux Evo software was used to perform simulation by taking the ME4A road lighting requirement set by Tenaga Nasional Berhad (TNB) as a benchmarking. In comparison, Lens D possessing short rounded rectangular lens demonstrated a better light performance as compared to long rounded rectangular and triangular lenses, owing to the acquisition of lesser light trespass problems. Besides, a better light performance was demonstrated by square-shaped LES as compared to the round-shaped LES due to the presence of large surface area that was able to distribute light evenly. Detailed investigation was presented.
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页数：12
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