首页|Study and optimization of lens shape affecting light patterns of light-emitting diode (LED) street lighting
Study and optimization of lens shape affecting light patterns of light-emitting diode (LED) street lighting
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NSTL
Elsevier
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.
NSTL
Elsevier
