Light emitting device and bulb-type LED lamp
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United States of America Patent
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Nov 26, 2013
Grant Date -
Jan 26, 2012
app pub date -
Mar 17, 2010
filing date -
Apr 13, 2009
priority date (Note) -
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Abstract
Provided is a light emitting device which can uniformly diffuse and radiate light from all the regions of the globe of an LED bulb without deteriorating light transmission efficiency. A light emitting device is provided with a light scattering/guiding globe and an LED which is disposed on one end of the light scattering/guiding globe. The light scattering/guiding globe is a body with no air released from the inside and is composed of a light scattering/guiding material having light scattering particles contained therein. The globe has the bottom surface on the side of the LED, and is provided with a first light incoming surface as a first hollow section, which is formed in a circular cone shape in the light outputting direction from the bottom surface.
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