摘要
本文探討LED檯燈設計及原型製作，因節能及一般檯燈規範考量，本檯燈設計瓦數10瓦以下，於300mm工作距離及550mm直徑圓區域內之最小照度值須為350 Lux以上。本研究利用SolidWorks 3D繪圖軟體設計繪製LED檯燈裝置原型，LabVIEW配合ProEngineer軟體設計均光透鏡，繪製之透鏡零件藉由Trace Pro光學分析軟體進行模擬分析，另引用文獻[14]演色性最佳法，以獲得不同顏色混光下演色性最佳化。 本研究設計第一款LED檯燈要點在於螢幕之安裝及夾持功能以節省桌面空間，本夾持機構使檯燈安裝於螢幕兩側，並設計旋轉機構使檯燈可前後轉動改變照射之目標平面。延伸第一款檯燈設計概念，本研究設計第二款檯燈強調便利性僅採單邊夾持設計，本設計採用單顆高功率LED且配合使用自由曲面均光透鏡，以強化投射於目標平面照度之均勻性達1.6 (均勻性= 最大照度/平均照度)。本研究設計第三款檯燈具混光控制功能，採用積分體使得不同顏色光均勻混合，其光輸出色溫可調(3000K~7000K)且演色性高(Ra >90)，但光輸出效能目前僅約40lm/w，尚存在很大的改善空間，可藉由使用高效能LED改善之。
並列摘要
This study discusses LED desk lamp design and associated prototyping. Because of the importance of energy saving and desk lamp minimal illumination requirement standard, the study considers design of desk lamps which consumes 10 watts or below, but achieves 350 lux or above in 300 mm distance and within a circular area of 550 mm in radius. This study design the LED desk lamp prototype using the Solid Works, LabVIEW with ProEngineer software design the optical lens, The other references [14] the best color rendering method, Mixing different colors of light to get under the optimal color rendering. The goal of the first LED lamp designed in this study is to save the desktop space by installing the lamp through a clamping mechanism on a PC monitor which is available on the desk. The mechanism can be clamped on the monitor edges. It has good degree of freedom such that the light projection direction can be flexibly adjusted and onto a working area in front of the monitor. The second lamp designed in this study is focused on improvement of the mechanism such that the lamp can be clamped on a single edge of the monitor. The design uses a high power LED along with a secondary optic lens with a freeform surface, to achieve the uniformity of luminance up to 1.6 (uniformity= maximum/average luminance) on a working surface. The third lamp in this study is designed with multiple color LEDs and a light color integrating chamber. The chamber is optically designed to assure uniform mixture of colors. The intensity of each color is under constant current driven and pulse-width module control such that the mixed color exhibits preferable lighting properties with the correlated color temperature in the range of 3000K~7000K and Ra >90. The current design has low luminous efficacy of 40 lm/w. Further improvement of the efficacy can be achieved by using LEDs with higher efficacy.