| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical measuring device capable of realizing higher integration efficiency, and reducing the cost. <P>SOLUTION: In a hemispherical integrating sphere according to one embodiment, a mirror generating mirror reflections (regular reflections) is not used for the entire plane part, but rather adopts a material that generates regular reflections is adopted for the outer peripheral side (hereafter, referred to as "outer peripheral part") of the planar part, and a material having at least a higher reflectance in an ultraviolet wavelength band, in comparison with the material for the outer peripheral part is adopted for the inner peripheral side (hereafter, referred to as "inner peripheral part"). The material adopted for the inner peripheral part is less expensive and has higher reflectance in the ultraviolet wavelength band, in comparison with the material adopted for the outer peripheral part. The hemispherical integrating sphere having a high integration efficiency (les light absorption) with reduced cost can be acquired, by arranging the outer peripheral part and the inner peripheral part in a proper range by using respective appropriate material. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
