OPTICAL LENS, LIGHT GUIDE MEMBER AND DOUBLE SIDED LUMINOSITY DEVICE
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United States of America Patent
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Issued Date -
Aug 8, 2019
app pub date -
Mar 13, 2018
filing date -
Mar 13, 2018
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Abstract
A device emitting light from two sides includes a base, a first light emitting surface, and a second light emitting surface. The base comprises a first surface and a second surface, the first surface is depressed to form a receiving groove, the receiving groove comprising a light incidence surface. The first light emitting surface protrudes from the second surface. The second light emitting surface is arranged beside the receiving groove. The second light emitting surface is a micro-structural portion, the micro-structural portion recessed from the first surface towards the second surface and forming a plurality of micro-structures.
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