So a new method to limit the facula was presented to improve illumination efficiency of light - pipe .
据此,提出了限制光斑进入 方棒 以提高整体照明系统效率的方法.
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No light is wasted and the light illumination efficiency is increased by 100 % to 150 %.
这样可有效地运用光源之馀,更能保持照明亮度,甚至把亮度提升至100%至150%.
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