Infrared Emitting Diode

A light-emitting diode that produces infrared radiation, used in assistive technology for motion tracking and position sensing. IREDs are commonly used in head-tracking systems, eye-tracking devices, and other assistive input methods where a camera detects the infrared light source to determine the user's position or movement. Because infrared light is invisible to the human eye, IRED-based tracking systems can operate without distracting the user. These components are inexpensive and widely available, making them practical for low-cost assistive technology solutions.