因應全球性的能源危機，太陽能、風能、水力發電、潮汐能、地熱和生質能源皆日趨成熟並成為人們普遍使用的綠色能源選項。而如何在最大限度的開發並利用這些能源已成為現今能源研究領域最關切的議題，而如何藉著使用這些再生能源達到節能和減少二氧化碳排放量也是全球最關鍵的問題之一。在所有再生能源中，太陽能儼然成為最具有廣泛應用潛力的能源選項。
而為了完善利用太陽能並減少能量的損耗，我們的團隊已耗費數年致力於以日光創造健康的照明環境之研究，並設計出一系列的相關產品，稱之為自然光照明系統。自然光照明系統以自然光導入室內直接做為照明使用的方式取代傳統以太陽能電池進行光轉電的做法，此舉可以省去光電轉換的過程所產生的能量耗損。
開發高品質的自然光照明系統時，需考慮的因素包含了如何提高系統的整體效率以及擴增應用的範圍。本論文提出一個高效率的集光結構，其中包含雙通道的集光單元、光導結構、中心耦合器與中心單元。我們可以將此結構以旋轉和延伸兩種方式形成兩種不同的集光模組，內文將詳述其設計概念並進行模擬分析和比較。藉由這兩種類型的集光模組，自然光照明系統將可以提供更足夠的能量與更豐富的室內照明應用。

In response to the energy crisis, solar energy, wind energy, hydroelectric power, ocean wave energy, geothermal energy, and energy from biomass have all been gaining popularity as green energy options. Research regarding the production and use of energy must address how to maximize energy efficiency as one of its top priorities. Energy-saving and carbon dioxide reduction are some of the most critical issues currently facing the globe. Among renewable energies, solar energy has the potential for widespread application. In order to minimize energy expenditure and create a healthy illumination, our team has designed a series of products, called the Natural Light Illumination System, which can transform natural light into indoor illumination. The concept of collecting daylight for natural light illumination has the benefit of using solar energy directly without the loss of energy required to transform solar energy into electrical energy.
In developing a high-quality natural light illumination system, the primary considerations include how to increase system efficiency and broaden its applications. This paper describes the conception, design, and analysis of a daylight collector that presents the combined advantages of excellent efficiency and a compact size. The collector structure consists of extendable two-channel collecting units, a planar light guide, and a central coupler to improve light-collection efficiency and increase surface area. In this study, two types of daylight collectors are proposed for illumination applications with different light patterns. With these collectors, the Natural Light Illumination System can now provide sufficiently powerful light for indoor illumination.

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