本研究主要目的是實現以雷射當作投影光源，並解決均勻度與散斑問題，完成一雷射照明投影系統。近年來，因雷射光源所具備之高極化度、高準直性與發散角小之特性，在投影機領域中受到相當之應用重視，其中以雷射光源搭配LCoS面板之投影機，可大幅改善使用傳統燈源，如:高壓汞燈或LED燈的光使用效率低、耗電與廢熱產生等缺點。然而，儘管雷射光源在投影機之應用有其優點，但高斯強度分佈雷射光束之均勻化問題卻影響影像與色彩的呈現，且因雷射同調性所產生的雷射散斑(speckle)現象也是關係投影影像之品質的關鍵要素。
本論文為了使投影影像達到良好的均勻照明分佈，設計出一折-繞射式雙面微透鏡陣列元件整形元件，應用於現有投影機中的0.7”LCoS面板並達到均勻分佈照明，並利用一扁平電流控制的振動馬達對該繞-折射式雙面微透鏡陣列元件進行振動，產生空間上光強度分佈變化，降低了散斑的對比度。最後投影影像的均勻度達到83% ，散斑的對比度降低至6% 以下，達到提升投影影像的品質，也實現了一雷射照明投影系統。

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