Detection device

A detection device comprising:

• a light source device comprising a plurality of point light sources arranged in a planar configuration;
• a light-transmitting placement substrate that is located so as to overlap one side in a first direction of the light source device, and on which an object to be detected is placed;
• an optical filter that is located so as to overlap one side in the first direction of the placement substrate and has a plurality of divided areas divided in a second direction intersecting the first direction;
• an optical sensor that is located so as to overlap one side in the first direction of the optical filter and comprises a plurality of photodetection elements arranged in a planar configuration, wherein
• a first point light source of the point light sources overlaps a first divided area of the divided areas of the optical filter as viewed from the first direction, and
• a first emitted light waveband of emitted light emitted from the first point light source overlaps a first transmitted light waveband of transmitted light transmitted through the first divided area.