PROBLEM TO BE SOLVED: To always acquire information on pulse waves and blood pressure of a person to be measured.SOLUTION: A biological information reading device 1 which is stuck to a living body to be used includes a biological information acquisition part 2 to be stuck to a living body to acquire biometric measurement information, and an operation part 24 for performing an operation for acquiring biological information on the basis of the biometric measurement information acquired by the biological information acquisition part 2. The biological information acquisition part 2 includes a light emitting element 10 for emitting polarization as forward light 30, a permeable membrane 14 for making the forward light 30 emitted from the light emitting element 10 incident on the inside of skin 40, a light receiving element 12 for receiving backward light 32 reflected on the inside of the skin 40 after permeating the permeable membrane 14 and permeating the permeable membrane 14 again, and a 1/4 wavelength plate 13 disposed at a position where the forward light 30 and the backward light 32 pass through to respectively change polarization characteristics of passing forward light 30 and backward light 32.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2016,JPO&INPIT【課題】被測定者の脈波や血圧の情報を、常時、取得すること。【解決手段】本発明は、生体に貼付して使用する生体情報読取装置1であって、生体に貼付されて生体測定情報を取得する生体情報取得部2と、生体情報取得部2で取得された生体測定情報に基づいて、生体情報を得る演算を行う演算部24と、を具備し、生体情報取得部2は、偏光を往路光30として発光する発光素子10と、発光素子10から発光された往路光30を皮膚40の内部に入射させる透過膜14と、透過膜14を透過した後、皮膚40の内部で反射され、透過膜14を再び透過した復路光32を受光する受光素子12と、往路光30と復路光32が通過する位置に設けられ通過する往路光30および復路光32の偏光特性をそれぞれ変化させる1/4波長板13と、を有するものである。【選択図】図5
