Light guiding structure
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United States of America Patent
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Aug 26, 2014
Grant Date -
Mar 22, 2012
app pub date -
Sep 16, 2011
filing date -
Sep 20, 2010
priority date (Note) -
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Abstract
A light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. A lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove.
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