Detection device and optical filter

A detection device comprising:

• a substrate having a detection region;
• a plurality of photodiodes provided in the detection region;
• a first light-transmitting resin layer provided so as to cover the photodiodes;
• a light-blocking layer provided on the upper side of the first light-transmitting resin layer and provided with openings in regions overlapping the respective photodiodes;
• a second light-transmitting resin layer provided so as to cover the light-blocking layer;
• a plurality of lenses provided on the upper side of the second light-transmitting resin layer so as to overlap the respective photodiodes, and
• an infrared (IR) cut filter layer provided between the photodiodes and the first light-transmitting resin layer and configured to block infrared rays, wherein
• the second light-transmitting resin layer is provided so as to cover an end on a peripheral side of the light-blocking layer on a peripheral side of the substrate
• the first light-transmitting resin layer, the light-blocking layer, the second light-transmitting resin layer, and the lenses are stacked on the IR cut filter, and
• the first light-transmitting resin layer is provided so as to cover an end on a peripheral side of the IR cut filter.