Illuminant device and light reflecting shade thereof
作者： Han-Chung Hsu , Nai-Yueh Liang
DOI:
关键词:
摘要: This invention provides an illuminant device and its light reflecting shade for a emitted from source. The includes at least one sheet, which forms conoid-like structure having first side (21) second (22). source is disposed the (21), (22) emitting side. central axial line of aligned or not with
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