LAMP HAVING AN ANNULAR LIGHT-GUIDING BODY
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Apr 23, 2013
filing date -
Apr 23, 2013
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Abstract
A lamp having an annular light-guiding body includes a light-emitting diode module, a light-emitting diode substrate, a circuit board, a power supply base and a bulb. The bulb is a semi-circular casing structure. An annular light-guiding body is disposed at the edge of the bulb proximal to the power supply base. The annular light-guiding body is positioned in the direction of lateral light emission from the light-emitting diode module, and has at least one light-entering face and at least one light-exiting face. Light emitted from the light-emitting diode module enters through the light-entering face, is transmitted within the annular light-guiding body, and after refraction is emitted from the light-exiting face to increase the range of light emission angle.
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