| 摘要 |
<p>A biometric information measuring sensor (10) has a light receiving area (17) provided at a light receiving element (16), a waveguide channel (15) provided in a waveguide channel forming member (14), filters (18a, 18b) for separating light emitted from an exit side opening (14b) of the waveguide channel (15) and irradiating the light receiving area (17) with only light of a specific wavelength region, and a solenoid (20) for switching the filters (18a, 18b). The solenoid (20) switches between the filters (18a, 18b) to realize a first state where the light receiving area (17) is irradiated with only light of a first wavelength region and a second state where the light receiving area (17) is irradiated with only light of a second wavelength region. The construction simultaneously achieves both a reduction in size of a probe section and improvement of measurement accuracy.</p> |
