Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 7, 2010
Patent Application Number
12202400
Date Filed
September 1, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A light emitting diode (LED) lamp includes a lampshade, a light guide pole and a plurality of LEDs. The light guide pole is of light permeable material and received in the lampshade. A plurality of irregular elements is formed on an outer surface of the light guide pole. A distribution density of the irregular elements decreases gradually from two ends of the light guide pole towards a middle of the light guide pole. The LEDs are mounted at the two ends of the light guide pole. Light emitted by the light emitting diodes falls incident into the light guide pole and exits the light guide pole from the outer surface thereof.
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