Biological information detector and biological information measurement device

摘要

A biological information detector includes a first sensor unit for detecting composite information including biological information of a detection site of a test subject and first noise information originating in external light, and a second sensor unit for detecting second noise information originating in the external light. The first sensor unit has a light-emitting part for emitting a first light toward the detection site, a first light-receiving part for receiving the light including the biological information obtained from the first light emitted toward the detection site being reflected by the detection site, and the light including the first noise information obtained from the external light being transmitted through the test subject, and a first reflecting part for reflecting the light including the biological information and the light including the first noise information and leading the light to the first light-receiving part. The second sensor unit has a second light-receiving part for receiving the light including the second noise information obtained from the external light being transmitted through the test subject, and a second reflecting part for reflecting the light including the second noise information and leading the light to the second light-receiving part.