PROBLEM TO BE SOLVED: To provide a technology accurately acquiring biological information.SOLUTION: A biological information acquisition device acquires a first light receiving result by selecting a light emitting part over a blood vessel out of a plurality of light emitting parts as a light emitting part for measurement and causing it to emit light, and by selecting a light receiving part separated from the light emitting part for measurement by a predetermined distance over the blood vessel out of a plurality of light receiving parts as a light receiving part for measurement, and causing it to receive the light irradiated from the light emitting part for measurement, and acquires a second light receiving result by selecting a light emitting part that is not over the blood vessel out of the plurality of light emitting parts as a light emitting part for reference, causing it to emit the light, selecting a light receiving part separated from the light emitting part for reference by the predetermined distance that is not over the blood vessel out of the plurality of light receiving parts as a light receiving part for reference, and causing it to receive the light irradiated from the light emitting part for reference.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2017,JPO&INPIT【課題】生体情報を精度良く取得する技術を提供する。【解決手段】生体情報取得装置は、複数の発光部のうち、血管の上にある発光部を測定用発光部として選択して発光させ、測定用発光部から照射された光を、複数の受光部のうち、測定用発光部から所定距離だけ離れており、かつ、血管の上にある受光部を測定用受光部として選択して第1の受光結果を取得し、複数の発光部のうち、血管の上にない発光部をリファレンス用発光部として選択して発光させ、リファレンス用発光部から照射された光を、複数の受光部のうち、リファレンス用発光部から所定距離だけ離れており、かつ、血管の上にない受光部をリファレンス用受光部として選択して第2の受光結果を取得する。【選択図】図7
