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Proceedings Paper

a complex design concluding collecting and transmitting subsystems for natural light illumination system
Author(s): Chen-Yen Huang; Allen Jong-Woei Whang; Ching-Wen Hsue
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Paper Abstract

The greenhouse effect is an increasingly serious environmental issue which has drawn much attention in the area of the environment protection. Therefore the development of green energy industry is imperative. Natural light illumination system is a novel and eco-friendly illumination system directing sunlight into buildings for illumination without the opto-to-electricity conversion, which can efficiently reduce the loss of the solar energy in the transition between different energy types. This system can be divided into three subsystems: 1) collecting subsystem; 2) transmitting subsystem; and 3) emitting subsystem. A coupler is needed to reduce the loss of energy during the coupling of the three subsystems. The study designs a combination of collecting subsystem and transmitting subsystem. The light collecting components consists of two parabolic mirrors, using its optical properties, confocal both mirrors to transmit light into transmitting subsystem. The collecting subsystem collects light via a multi-reflection angle of reflection surface amending light track to the lens and focused through the lens of the optical properties, hitting the lens connected to the next collecting subsystem to achieve the demand of light transmission. In this design, the two subsystems are integrated and can reduce the loss in the transmitting process between the two subsystems without via the other coupling. This design enhances the efficiency of the natural light illumination system for the utilization of solar energy.

Paper Details

Date Published:
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Proc. SPIE 8834, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration X, 883415; doi: 10.1117/12.2023645
Show Author Affiliations
Chen-Yen Huang, National Taiwan Univ. of Science and Technology (Taiwan)
Allen Jong-Woei Whang, National Taiwan Univ. of Science and Technology (Taiwan)
Ching-Wen Hsue, National Taiwan Univ. of Science and Technology (Taiwan)


Published in SPIE Proceedings Vol. 8834:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration X
Roland Winston; Jeffrey Gordon, Editor(s)

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