I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Most consumer remote controls operate using infrared light. This works well assuming the piece of equipment has a line of sight to the remote. But if you have, say a receiver in a cabinet or closet, ...

A coating that could cloak objects from infrared sensors by controlling their thermal radiation has been demonstrated by researchers at U.S. universities, with funding support from the U.S. Air Force ...