本篇論文主要是在探討廣角物鏡之像差與相對照度之間的關係,歸納出目標函數,以及如何應用於廣角鏡頭設計。論文首先是探討輻射度學與光學系統相對照度之間的關係,找出關鍵性的條件,並歸納目標函數,以實際的專利鏡頭,利用光學設計軟體Code V 將目標函數代入優化,最後再將常見的廣角物鏡前群結構加以比較,並分析各前群結構的特性。 The purpose of this study is to research the relationship between the aberration of wide-angle lens and its relative illumination, and summarize the merit function to apply of wide-angle lens design. First of all, the relationship between the radiometry and relative illumination of this optical system were discussed. After figuring out the key aberrations, the merit function was generalized to optimize a JP patent lens by Code V optical software. Finally, the parameters of common wide-angle lenses were compared with each other, and the properties of the front lens group would be analyzed in order to find out the ideal design.