Light guide member and method of manufacturing light guide member
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United States of America Patent
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Jan 31, 2017
Grant Date -
Jun 26, 2014
app pub date -
Apr 23, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
To provide a light guide member such that more uniform brightness can be ensured in a wide region. A light guide member according to the present invention that receives light through side surfaces and outputs the light through main surfaces includes recesses formed by a machine in at least one of the main surfaces in a groove-like or dot-like shape, the recesses having bottom surfaces formed of molten material at the deepest part of the recesses. Thus, there can be provided the light guide member that has the groove-like or dot-like recesses with the bottom surfaces formed by a molten mark and that can output light with more uniform brightness through the main surfaces when a wide region is observed.
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