人工照明的耗能以及對於健康的影響致使自然光系統的研究日漸蓬勃，尤其近年球疫情影響，居家辦公的比例提高，進而降低人們照射太陽的時間，將太陽光作為輔助照明已經更為人重視。然而自然光照明系統在以往研究多以客製化設計，對場域適應性較差、多數設計必須更動建築結構，成本高昂並且難以複製，難以將設計概念同時應用於辦公與居家空間。
本研究基於本實驗室多年以來的研究方向：自然光照明系統(NLIS)，基於其基礎概念及修改目標做為研究方向，以光立方作為模組設計單位，強化模組化概念：將靜態集光系統進行修正提升，改以主動式定日鏡運用自行優化之演算法設計集光光立方。將原先光管傳光設計改以空氣作為介質搭配平面鏡做轉折作為傳光模組。最終放光利用自由曲面作為反射罩大幅改善以往設計多以貼近人工光源布局之方式，形成精準高效率之放光模組。以辦公空間做為目標場域開發高適應性及可調整之模塊化日光照明系統，降低場域的複雜度所造成限制，將自然光系統分為多個模塊設計，展示簡易開發及製作流程，並且將自由曲面反射罩與自然光系統結合，透過場域的光學模擬結果加以迴歸達成均勻被照面，製作高效率放光系統。透過主動式定日鏡作為集光，搭配實際製造驗證結果，創造良好室內照明系統，藉以呈現低開發成本與容易設計之自然光照明系統，作為辦公或居家辦公區域的照明。

The energy consumption of artificial lighting and its impact on health has stimulated the research of natural lighting systems. However, most of the designs of natural light illumination systems were customized, with poor adaptability to the field, the designs must change the building structure more or less, the cost of them is high and it is difficult to replicate. Therefore, it would be difficult to apply the design concept to the office and home space at the same time.
This study is based on the research concept and the outlook of the research topics of our laboratory for many years: Natural Light Illumination System (NLIS). Light cube is used as the unit of our module design to strengthen the concept of modularization: static light collection system is modified and upgraded to be the active heliostat. Using the self-optimized algorithm to design the control part of the light cube. The original design of the light pipe for light transmission is changed to use freespace as the medium with a flat mirror as the light transmission module. At the part of emit the sunlight, a freeform reflector is used as the emitting mudule to greatly improve the previous design, which is close to the layout of artificial light sources, to form a precise and high-efficiency light-emitting module.This study takes office space as the testing field to develop a highly adaptable and adjustable modular natural light illumination system. It divides the system into multiple module designs, demonstrates simple development and fabrication processes, and integrates a freeform reflector into the system. In creating the freeform mirror, the optical simulation results of the testing field are regressed through polynomial regression to achieve a uniform illuminated plane, and a high-efficiency light-emitting system is produced. Finally, an active heliostat is used to collect sunlight, combined with actual manufacturing verification and measurement results, to create an excellent indoor lighting system. The result presents a low development cost and easy-to-design natural light illumination system as the assisted lighting of both home and office area.

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