PROBLEM TO BE SOLVED: To provide a transparency measurement device capable of measuring the transparency of a measurement object without bringing it into contact with the measurement object.SOLUTION: A transparency measurement device includes: light irradiation means for irradiating a measurement object with light a slit mask arranged between the light irradiation means and the measurement object light reception means arranged in any direction other than a direction of the regular reflection of light with which the measurement object is irradiated by the light irradiation means for receiving scattered light radiated from the measurement object and calculation means for calculating the transparency of the measurement object on the basis of the received scattered light.COPYRIGHT: (C)2014,JPO&INPIT【課題】計測対象物に接触させることなく、計測対象物の透明度を測定することができる透明度測定装置を提供すること。【解決手段】測定対象物に光を照射するための光照射手段と、前記光照射手段と前記測定対象物との間に配置されたスリットマスクと、前記光照射手段が照射する前記光の正反射の方向以外の方向に配置され、前記測定対象物から放射された散乱光を受光する、受光手段と、受光した前記散乱光に基づいて、前記測定対象物の透明度を算出する、算出手段と、を含む、透明度測定装置。【選択図】図1
