本論文主要著重於利用RGB LEDs混光之技術，設計投射燈具。其系統具有色彩可調之優點，且應用於產生白光時，將擁有色溫可調的特性。然而，光學效率和色彩均勻度為設計中最重要之議題。因此，論文中將先定義色彩均勻度的量測與分析方式，以及針對燈具中各項參數進行探討與驗證，最後設計出高效率的混光投射燈具。

In this thesis, the main object is the design of RGB LEDs projection luminaire. Its color is adjustable, and if using in producing white-light, we can change the CCT. However, the important issues in this luminaire are optical efficiency and color uniformity. Therefore, we will define the method of measuring and analyzing for color uniformity in the thesis. Moreover, we will also discuss each parameters in the luminaire to find the suitable structure. Finally, we design the high efficiency projection luminaire with color-mixing.

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