LED lamp
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United States of America Patent
Stats
-
Jul 17, 2012
Grant Date -
Oct 20, 2011
app pub date -
May 31, 2010
filing date -
Apr 19, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An LED lamp includes a lamp post, an illumination unit fixed on the lamp post, and a generator disposed in the lamp post and coupled to the illumination unit electrically. The lamp post defines an airflow passage along a longitudinal direction thereof. The airflow passage communicates with an outer environment. The generator is adapted for converting wind energy to electric energy, and includes a rotary turbine arranged in the airflow passage. The rotary turbine includes a hub and a plurality of blades around the hub. Each of the blades includes a top face and an opposite bottom face. The top face and the bottom face are symmetric to a plane which extends through opposite connecting edges of the top and bottom faces and is perpendicular to a rotary axis of the turbine.
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