Light guide unit and light source module
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United States of America Patent
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Oct 10, 2017
Issued Date -
N/A
app pub date -
Apr 8, 2015
filing date -
May 30, 2014
priority date (Note) -
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Abstract
A light guide unit is adapted to be disposed beside a light source. The light guide unit includes a light guide plate and a plurality of optical structures. The light guide plate has a bottom surface, a light emitting surface, a light incident surface, a side surface, a first connecting surface, and a second connecting surface. The bottom surface is opposite to the light emitting surface. The light incident surface, the side surface, the first connecting surface, and the second connecting surface are respectively connected between the bottom surface and the light emitting surface. The light incident surface is disposed between the light source and the side surface. The optical structures protrude on the side surface, the first connecting surface, and the second connecting surface, and together form a Fresnel lens structure. A light source module is also provided.
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