This photo was shot for a project on invisible infrared surveillance technology. The aim was to show how powerful ...

Scientists have developed a lens-free mid-infrared camera using a modern twist on pinhole imaging. The system uses nonlinear crystals to convert infrared light into visible, allowing standard sensors ...

A contact lens with microscopic line patterns tracks eye position with high precision using only a smartphone camera, ...

IR sensors rely on an emitter (IR LED) and a detector (photodiode or photoresistor) to measure infrared light and convert it ...