摘要 |
PROBLEM TO BE SOLVED: To provide a method for objectively identifying skin clearness, not subjectively, as well as clarifying a theory as to why skin looks clearer. SOLUTION: The method is for irradiating a skin with visible lights from at least two directions of different incidence angles, and then calculating (a reflectance for the light irradiating the skin with smaller incidence angle)/(a reflectance for the light irradiating on the skin with larger incidence angle) to identify clearness of the skin with the maximum value out of such calculated values set as an indicator. COPYRIGHT: (C)2003,JPO
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