LIGHT EMITTING DIODE LIGHT TUBE
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United States of America Patent
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Issued Date -
Oct 9, 2014
app pub date -
Apr 8, 2013
filing date -
Apr 8, 2013
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Abandoned
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Abstract
A Light Emitting Diode (LED) light tube includes a substrate having a light emitting side formed with a recess and at least one communication hole extending therethrough and at least one illumination unit disposed at a bottom of the recess. The illumination unit is constituted by a plurality of dies wire-bond together in series connection, thereby forming LED units. An optical layer and a protection layer are disposed to cover the relatively small width of the recess, thereby shielding the illumination unit.
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