REFLECTIVE LIGHT GUIDE BARREL, LED LIGHT SOURCE AND OPTICAL SYSTEM
The present invention discloses a reflective light guide tube and a LED light source and an optical system, the reflective light guide comprising a cylinder enclosed by more than three reflecting plates which connected with each other in turn, the reflecting plate comprising a plate body and a refle...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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