GLASS LIGHT GUIDE PLATE, MOLD, AND METHOD OF MANUFACTURING SAME
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United States of America Patent
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Aug 8, 2016
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Mar 1, 2016
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A mold which is made of a porous heat-resistant material comprises a first surface and a second surface opposite to the first surface. A plurality of light guide spots are formed on the first surface. The light guide spots are light guide spots. The first surface is a smooth polished surface, the mold enables direct manufacture of light guide plates for less heat expended.
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