What Is an Infrared Diode?
An infrared diode is a semiconductor device that converts electrical energy into infrared light.
Widely utilized in remote controls, optical communication, and sensors, infrared diodes operate on the principle of PN junctions. When voltage is applied, electron-hole pairs recombine, emitting infrared light. The emitted light’s wavelength depends on the diode’s material and structure.
Infrared diodes serve diverse applications, including remote controls, optical fiber communication, object detection, and medical and industrial equipment. Their construction features PN junctions, electrodes, and focusing lenses. Key attributes include operation in darkness with invisible light, low power consumption, extended lifespan, and compact, lightweight design.