Sensor module and biological information display system

A sensor module comprising:

• a light emitter configured to emit light beams including near-infrared light beams towards a subject;
• a light receiver configured to receive light beams that have passed through the subject;
• and
• a controller configured to estimate biological information based on signals output from the light receiver,
• wherein the light emitter includes a plurality of first light emitting elements disposed spaced apart from each other and configured to emit near-infrared light beams having central wavelengths different from each other,
• wherein the light receiver includes a light receiving element that is disposed to receive the near-infrared light beams emitted from the plurality of first light emitting elements and that is sensitive to the near-infrared light beams,
• wherein the light emitter produces sets of light emissions by causing the plurality of first light emitting elements to sequentially and intermittently emit the near-infrared light beams, and, in given two consecutive sets of light emissions produced by the light emitter, a second non-light-emission period of time is longer than a first non-light-emission period of time, the first non-light-emission period of time being a non-light-emission period of time occurring between two consecutive light emission periods of time in each of the given two consecutive sets of light emissions, and the second non-light-emission period of time being a non-light-emission period of time occurring between a light emission period of time that occurs last in a first set of light emissions of the given two consecutive sets of light emissions and a light emission period of time that occurs first in a latter set of light emissions of the given two consecutive sets of light emissions, and
• wherein the controller estimates the biological information in a processing period of time that is set in correspondence with the second non-light-emission period of time.