FINGER BOARD
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United States of America Patent
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Issued Date -
Feb 7, 2013
app pub date -
Oct 24, 2011
filing date -
Aug 5, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A finger board for a finger to press including a board layer and a micro-structure layer is disclosed. The board layer has a first refractive index, and has a first board surface and a second board surface opposite to each other. The first board surface is used for the finger to press. The micro-structure layer has a second refractive index different from the first refractive index, and is disposed on the second board surface. Therefore, a light ray emitted from the micro-structure layer to the first board surface can be reflected and scattered on the first board surface, so as to uniformly distribute energy.
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