臺灣博碩士論文加值系統

近年來，許多LED產品由於節能，以及效率較傳統光源高而在市面上被廣泛運用，取代了傳統的光源，包括室內照明、室外照明、道路照明等用途，在相關產業上更是佔有舉足輕重的角色。但是相較於傳統光源，由點光源組成的LED產品，在使用上易造成光源發光面的亮度不均勻、眩光等問題，而導致過去使用在評價眩光的統一眩光公式 (Unified Glare Rating, UGR)已不再適用於LED光源。
本研究共設計兩個實驗來探討使用次波長金屬光柵 (偏光片)應用在LED產品上對於視覺舒適度的影響。實驗一利用二維色度儀量測出使用偏光片與無使用偏光片在光源發光面上的均勻度。實驗二則是在不同環境條件下利用主觀視覺評價的方式，評價LED燈具來分析偏光片使用後對於視覺舒適度的影響，此外在實驗二的進行前/進行後階段，使用閃光融合儀量測出觀測者生理的視覺疲勞程度後將兩數據相減再以主觀問卷的方式詢問，分析生理評價與主觀評價兩者的相關度是否為顯著，以此數據做為篩選觀測者數據穩定性之依據。最後將利用實驗的結果對原本CIE所定義的統一眩光指數的公式UGR進行修正，以提高原本UGR預測LED不均勻光源的準確性為目的，加入對比以及光源最大亮度的參數，得到新的預測眩光公式C-UGR (Contrast UGR)。

Because of energy saving and efficiency, people would like to use LED as the parts of the products in recent years, instead of using traditional light sources. However, in agreement with earlier work, it can be concluded that point-array type of LED luminaires could provoke more discomfort glare, non-uniform emitting surface than traditional light sources. In this study, two experiments were designed to analyze visual comfort effect and visual fatigue degree of the white LEDs with / without nano-wire grid polarizer. A novel 2D colorimeter was used to analyze the uniformity of the two lighting types (polarized and unpolarized LEDs) in the first experiment. In the second experiment, a visual assessment way was used to analyze visual comfort degrees under different conditions between two lighting types. Critical flicker fusion (CFF) method was utilized to analysis the degrees of physiologically visual fatigue before and after experiment, then the participants were asked to answer subjectively visual fatigue questionnaire. The aim of the second experiment was to find the relation between the subjective assessment and the physiological assessment. Finally the results were tested for adjusting the Unified Glare Rating formula defined by CIE. And the goal is to derivate the modified formula for non-uniform white LED arrays, which is named C-UGR(Contrast UGR).

目錄
摘要 I
ABSTRACT III
致謝 IV
目錄 V
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 研究目的 3
1.4 研究限制 3
第二章 光源與照明 6
2.1 標準光源 6
2.2照明與照明單位 6
2.2.1輻射量 7
2.2.2光度量 7
2.3實驗設備 9
2.3.1實驗設備與量測儀器 10
第三章 文獻回顧 14
3.1視覺舒適度 14
3.1.1眩光定義 14
3.1.2影響視覺舒適度的因素 14
3.1.3眩光公式 16
3.2眩光評價方法 20
3.3修改眩光公式：mUGR 24
第四章 研究方法 26
4.1實驗一 ： 『光源均勻度』實驗 26
4.2實驗二 ： 『視覺舒適度』實驗 26
第五章 實驗結果與討論 29
5.1可信度分析 29
5.1.1觀測者可信度分析 29
5.1.2可信度分析結論 31
5.2實驗一 ： 『光源均勻度』實驗 31
5.3實驗二 ： 『視覺舒適度』實驗 32
第六章 眩光預測模型之建立 37
6.1 視覺舒適度評價模型 37
6.1.1 UGR公式預測 37
6.1.2 UGRsmall公式預測 39
6.1.3 C-UGR公式預測 41
第七章 總結與建議 52
7.1 總結 52
7.2 未來建議 53
第八章 文獻探討 54
附錄一 分光輻射儀 57
附錄二 面測定分析儀 58
附錄三 色彩照度計 59
附錄四 可攜式分光光度儀 60
附錄五 可信度相關計算 61

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