FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment and concerns a multifunctional optical sensor. Sensor comprises at least one pair consisting of a radiation source and a corresponding radiation detector and an optical circuit which includes a collimating element, a first optical element and a second optical element. First optical element and the second optical element include a reflecting surface and are interconnected by a common surface, wherein the common surface is a semitransparent surface. Sensor can be used as microphone, dust sensor, lidar, PPG sensor (photoplethysmogram).
EFFECT: technical result consists in reduction of dimensions, enabling use of sensor in mobile devices and broader functional capabilities.
29 cl, 20 dwg
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