Cost-Effective Light-Mixing Module for Solar-Lighting System Appended With Auxiliary RGBW Light-Emitting DiodesSource: Journal of Solar Energy Engineering:;2017:;volume( 139 ):;issue: 006::page 61006DOI: 10.1115/1.4037746Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A light-mixing module consisting of a compound parabolic concentrator (CPC) and a light-mixing tube is proposed herein to realize a uniform and efficient solar-lighting system. In this lighting system, the sunlight collected into a fiber and then guided to an indoor destination is the principal light source, while an auxiliary light source including multiple red, green, blue, and white (RGBW) light-emitting diodes (LEDs) is controlled by an auto-compensating module. To mix the principal and the auxiliary sources and to realize the uniform illumination, the light-mixing tube was coated with BaSO4 and optimized as a cylindrical tube. The design of the light-mixing tube is described and discussed in this article. According to the simulated results, the uniformity and the optical efficiency of the designed light-mixing tube are 82.9% and 85.7%, respectively, while from the experimental results, the uniformity of 85.9% and the optical efficiency of 83.3% have been obtained. In terms of the common indoor-lighting standards and the specifications of commercial components used in lighting systems, the proposed light-mixing module has demonstrated the high uniformity and acceptable optical efficiency. Additionally, since the main components of the light-mixing module can be designed as plastic optics, a cost-effective light-mixing module and a profitable lighting system can be realized. Thus, the performance and the price of the proposed light-mixing module fit the demands of the illumination market, while the proposed system shows the potential for indoor solar-lighting applications.
|
Collections
Show full item record
contributor author | Chi Wei | |
contributor author | An;Chieh Lo | |
contributor author | Shih;Lee | |
contributor author | Ju-Yi;Yeh | |
contributor author | Hong-Yih | |
date accessioned | 2017-12-30T11:43:40Z | |
date available | 2017-12-30T11:43:40Z | |
date copyright | 9/12/2017 12:00:00 AM | |
date issued | 2017 | |
identifier issn | 0199-6231 | |
identifier other | sol_139_06_061006.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4242868 | |
description abstract | A light-mixing module consisting of a compound parabolic concentrator (CPC) and a light-mixing tube is proposed herein to realize a uniform and efficient solar-lighting system. In this lighting system, the sunlight collected into a fiber and then guided to an indoor destination is the principal light source, while an auxiliary light source including multiple red, green, blue, and white (RGBW) light-emitting diodes (LEDs) is controlled by an auto-compensating module. To mix the principal and the auxiliary sources and to realize the uniform illumination, the light-mixing tube was coated with BaSO4 and optimized as a cylindrical tube. The design of the light-mixing tube is described and discussed in this article. According to the simulated results, the uniformity and the optical efficiency of the designed light-mixing tube are 82.9% and 85.7%, respectively, while from the experimental results, the uniformity of 85.9% and the optical efficiency of 83.3% have been obtained. In terms of the common indoor-lighting standards and the specifications of commercial components used in lighting systems, the proposed light-mixing module has demonstrated the high uniformity and acceptable optical efficiency. Additionally, since the main components of the light-mixing module can be designed as plastic optics, a cost-effective light-mixing module and a profitable lighting system can be realized. Thus, the performance and the price of the proposed light-mixing module fit the demands of the illumination market, while the proposed system shows the potential for indoor solar-lighting applications. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Cost-Effective Light-Mixing Module for Solar-Lighting System Appended With Auxiliary RGBW Light-Emitting Diodes | |
type | Journal Paper | |
journal volume | 139 | |
journal issue | 6 | |
journal title | Journal of Solar Energy Engineering | |
identifier doi | 10.1115/1.4037746 | |
journal fristpage | 61006 | |
journal lastpage | 061006-6 | |
tree | Journal of Solar Energy Engineering:;2017:;volume( 139 ):;issue: 006 | |
contenttype | Fulltext |