| 摘要 |
PROBLEM TO BE SOLVED: To enable measurement at an arbitrary light receiving open angle while keeping the interchangeability of an apparatus. SOLUTION: An optical characteristic measuring instrument includes an illumination part for illuminating a measuring target, a light receiving part for receiving the reflected light reflected by the measuring target under the illumination state by the illumination part, a light receiving control part for allowing the light receiving part to receive the reflected light at a plurality of the light receiving angles within a predetermined angle range containing a preset light receiving angle, and an arithmetic part for performing not only predetermined weighting operation but also predetermined adding and subtracting operation with respect to the photometric values at the respective light receiving angles obtained by the light receiving part. COPYRIGHT: (C)2009,JPO&INPIT
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