Emitting device, the light bulb-shaped lamp and a lighting device

2011 
To provide a light emitting device capable of heat generated by the LED efficiency good heat dissipation. The light emitting device according to the present invention includes a base and (140), and an LED chip mounted on the base (140) (150). Base (140) is a base of translucent made of ceramic particles. When a base (140) LED chips (150) main area an area including an element mounting area to be mounted (A2) of an average particle diameter of the ceramic particles in the main area, 10 [mu] m or more and 40μm or less. Also, if the end region of the region around the ends of the base (140) (A1), the average particle diameter of the ceramic particles in the end region (A1) has an average particle of the ceramic particles in the element mounting area (A2) it is preferably smaller than the diameter.
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