Optical system device, PPG sensor provided with the same, blood oxygen concentration measuring device, blood glucose value measuring device

Abstract

The utility model discloses a purpose lies in providing a kind of optical system device further miniaturization of present optical system device than, and PPG sensor, blood oxygen concentration measuring device, blood glucose value measuring device with it.The optical system device (100) of the utility model includes: light irradiation component (1), can irradiate light;And first light detection component (2), the information of light received by light receiving surface (21) is detected, wherein, light receiving surface (21) is configured on the optical axis of light irradiated by light irradiation component (1), and with the way of avoiding the light of light irradiation component (1) directly irradiated to light receiving surface (21) is configured.Light irradiation component (1) can be configured at the back side of first light detection component (2).In addition, transmission path (3) can be included, the light of light irradiation component (1) is incident by using incident part (31), and the light of light irradiation component (1) is emitted by using emission part (32).

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