| http://www.w3.org/ns/prov#value | - 20140362380INTEGRATING SPHERE - In an integrating sphere including a structure having a spherical inner wall that forms a spherical space, there are provided an LED circuit board equipped at one end with a light-emitting device adapted to radiate a light in the space at an input port formed at the structure to be diffuse-reflected on the spherical inner wall and equipped at other end with a heat s
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