PROBLEM TO BE SOLVED: To provide a measuring device with which it is possible to improve optical characteristics without using an optical component.SOLUTION: The measuring device irradiates a measurement object with irradiation light having respectively prescribed wavelengths in a plurality of irradiation periods TR1-TR8. The measuring device comprises: a light receiving unit for receiving transmitted light and/or reflected light from the measurement object irradiated with irradiation light and generating an electric charge that corresponds to the received light； an accumulation unit having a plurality of accumulation elements for sequentially accumulating the electric charges generated by the light receiving unit in each of the plurality of irradiation periods； and a readout unit for reading out an electric signal corresponding to the electric charges accumulated by the accumulation unit for each of measurement periods TM1-TM8 including the plurality of irradiation periods. The measurement periods include a plurality of first irradiation periods TR1 in which irradiation light of a first wavelength is irradiated with and a plurality of second irradiation periods TR2 in which irradiation light of a second wavelength different from the first wavelength is irradiated with.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2020,JPO&INPIT【課題】光学部品を用いることなく光学特性を向上させることが可能な測定装置を提供する。【解決手段】複数の照射期間ＴＲ１～ＴＲ８において、それぞれ定められた波長を有する照射光を測定対象に照射する。照射光を照射された測定対象からの透過光および反射光の少なくとも一方を受光して、受光した光に応じた電荷を発生する受光部と、複数の照射期間の各々に、受光部が発生した電荷を順次蓄積する複数の蓄積素子を有する蓄積部と、蓄積部が蓄積した電荷に応じた電気信号を、前記複数の照射期間を含む測定期間ＴＭ１～ＴＭ８毎に読み出す読み出し部とを備え、測定期間は、第１波長の照射光を照射する複数の第１照射期間ＴＲ１と、第１波長と異なる第２波長の照射光を照射する第２照射期間ＴＲ２とをそれぞれ含む。【選択図】図４
