fei666:Ans: lJx5scN[ 1.灯珠面积选更小的[表情] 0&tr3!h\ 2.灯珠找更小发光角度的[表情] jL'R4z 3.材料找更高折射率的[表情] P1Iy>%3 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) (rBYE[@,
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